Merge branch 'viro'

145 files changed, 891 insertions, 1132 deletions

diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c
index 4b873527ce1c..02c2db08114a 100644
--- a/arch/alpha/kernel/smp.c
+++ b/arch/alpha/kernel/smp.c
@@ -73,9 +73,6 @@ cpumask_t cpu_online_map;
 
 EXPORT_SYMBOL(cpu_online_map);
 
-/* cpus reported in the hwrpb */
-static unsigned long hwrpb_cpu_present_mask __initdata = 0;
-
 int smp_num_probed;		/* Internal processor count */
 int smp_num_cpus = 1;		/* Number that came online.  */
 
@@ -442,7 +439,7 @@ setup_smp(void)
 			if ((cpu->flags & 0x1cc) == 0x1cc) {
 				smp_num_probed++;
 				/* Assume here that "whami" == index */
-				hwrpb_cpu_present_mask |= (1UL << i);
+				cpu_set(i, cpu_possible_map);
 				cpu->pal_revision = boot_cpu_palrev;
 			}
 
@@ -453,12 +450,12 @@ setup_smp(void)
 		}
 	} else {
 		smp_num_probed = 1;
-		hwrpb_cpu_present_mask = (1UL << boot_cpuid);
+		cpu_set(boot_cpuid, cpu_possible_map);
 	}
 	cpu_present_mask = cpumask_of_cpu(boot_cpuid);
 
 	printk(KERN_INFO "SMP: %d CPUs probed -- cpu_present_mask = %lx\n",
-	       smp_num_probed, hwrpb_cpu_present_mask);
+	       smp_num_probed, cpu_possible_map.bits[0]);
 }
 
 /*
@@ -467,8 +464,6 @@ setup_smp(void)
 void __init
 smp_prepare_cpus(unsigned int max_cpus)
 {
-	int cpu_count, i;
-
 	/* Take care of some initial bookkeeping.  */
 	memset(ipi_data, 0, sizeof(ipi_data));
 
@@ -486,19 +481,7 @@ smp_prepare_cpus(unsigned int max_cpus)
 
 	printk(KERN_INFO "SMP starting up secondaries.\n");
 
-	cpu_count = 1;
-	for (i = 0; (i < NR_CPUS) && (cpu_count < max_cpus); i++) {
-		if (i == boot_cpuid)
-			continue;
-
-		if (((hwrpb_cpu_present_mask >> i) & 1) == 0)
-			continue;
-
-		cpu_set(i, cpu_possible_map);
-		cpu_count++;
-	}
-
-	smp_num_cpus = cpu_count;
+	smp_num_cpus = smp_num_probed;
 }
 
 void __devinit
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 5959e36c3b4c..15dc1a0dffbb 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -10,9 +10,9 @@ config ARM
 	default y
 	help
 	  The ARM series is a line of low-power-consumption RISC chip designs
-	  licensed by ARM ltd and targeted at embedded applications and
+	  licensed by ARM Ltd and targeted at embedded applications and
 	  handhelds such as the Compaq IPAQ.  ARM-based PCs are no longer
-	  manufactured, but  legacy ARM-based PC hardware remains popular in
+	  manufactured, but legacy ARM-based PC hardware remains popular in
 	  Europe.  There is an ARM Linux project with a web page at
 	  <http://www.arm.linux.org.uk/>.
 
@@ -69,6 +69,9 @@ config GENERIC_ISA_DMA
 config FIQ
 	bool
 
+config ARCH_MTD_XIP
+	bool
+
 source "init/Kconfig"
 
 menu "System Type"
@@ -81,45 +84,62 @@ config ARCH_CLPS7500
 	bool "Cirrus-CL-PS7500FE"
 	select TIMER_ACORN
 	select ISA
+	help
+	  Support for the Cirrus Logic PS7500FE system-on-a-chip.
 
 config ARCH_CLPS711X
 	bool "CLPS711x/EP721x-based"
+	help
+	  Support for Cirrus Logic 711x/721x based boards.
 
 config ARCH_CO285
 	bool "Co-EBSA285"
 	select FOOTBRIDGE
 	select FOOTBRIDGE_ADDIN
+	help
+	  Support for Intel's EBSA285 companion chip.
 
 config ARCH_EBSA110
 	bool "EBSA-110"
 	select ISA
 	help
 	  This is an evaluation board for the StrongARM processor available
-	  from Digital. It has limited hardware on-board, including an onboard
+	  from Digital. It has limited hardware on-board, including an
 	  Ethernet interface, two PCMCIA sockets, two serial ports and a
 	  parallel port.
 
 config ARCH_FOOTBRIDGE
 	bool "FootBridge"
 	select FOOTBRIDGE
+	help
+	  Support for systems based on the DC21285 companion chip
+	  ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
 
 config ARCH_INTEGRATOR
 	bool "Integrator"
 	select ARM_AMBA
 	select ICST525
+	help
+	  Support for ARM's Integrator platform.
 
 config ARCH_IOP3XX
 	bool "IOP3xx-based"
 	select PCI
+	help
+	  Support for Intel's IOP3XX (XScale) family of processors.
 
 config ARCH_IXP4XX
 	bool "IXP4xx-based"
 	select DMABOUNCE
 	select PCI
+	help
+	  Support for Intel's IXP4XX (XScale) family of processors.
 
 config ARCH_IXP2000
 	bool "IXP2400/2800-based"
 	select PCI
+	help
+	  Support for Intel's IXP2400/2800 (XScale) family of processors.
 
 config ARCH_L7200
 	bool "LinkUp-L7200"
@@ -136,6 +156,9 @@ config ARCH_L7200
 
 config ARCH_PXA
 	bool "PXA2xx-based"
+	select ARCH_MTD_XIP
+	help
+	  Support for Intel's PXA2XX processor line.
 
 config ARCH_RPC
 	bool "RiscPC"
@@ -152,19 +175,25 @@ config ARCH_SA1100
 	bool "SA1100-based"
 	select ISA
 	select ARCH_DISCONTIGMEM_ENABLE
+	select ARCH_MTD_XIP
+	help
+	  Support for StrongARM 11x0 based boards.
 
 config ARCH_S3C2410
 	bool "Samsung S3C2410"
 	help
 	  Samsung S3C2410X CPU based systems, such as the Simtec Electronics
 	  BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
-	  the Samsung SMDK2410 development board (and derviatives).
+	  the Samsung SMDK2410 development board (and derivatives).
 
 config ARCH_SHARK
 	bool "Shark"
 	select ISA
 	select ISA_DMA
 	select PCI
+	help
+	  Support for the StrongARM based Digital DNARD machine, also known
+	  as "Shark" (<http://www.shark-linux.de/shark.html>).
 
 config ARCH_LH7A40X
 	bool "Sharp LH7A40X"
@@ -176,6 +205,8 @@ config ARCH_LH7A40X
 
 config ARCH_OMAP
 	bool "TI OMAP"
+	help
+	  Support for TI's OMAP platform (OMAP1 and OMAP2).
 
 config ARCH_VERSATILE
 	bool "Versatile"
@@ -194,6 +225,8 @@ config ARCH_REALVIEW
 
 config ARCH_IMX
 	bool "IMX"
+	help
+	  Support for Motorola's i.MX family of processors (MX1, MXL).
 
 config ARCH_H720X
 	bool "Hynix-HMS720x-based"
@@ -210,8 +243,8 @@ config ARCH_AAEC2000
 config ARCH_AT91RM9200
 	bool "AT91RM9200"
 	help
-	  Say Y here if you intend to run this kernel on an AT91RM9200-based
-	  board.
+	  Say Y here if you intend to run this kernel on an Atmel
+	  AT91RM9200-based board.
 
 endchoice
 
@@ -417,8 +450,8 @@ config AEABI
 	  To use this you need GCC version 4.0.0 or later.
 
 config OABI_COMPAT
-	bool "Allow old ABI binaries to run with this kernel"
-	depends on AEABI
+	bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
+	depends on AEABI && EXPERIMENTAL
 	default y
 	help
 	  This option preserves the old syscall interface along with the
diff --git a/arch/arm/configs/enp2611_defconfig b/arch/arm/configs/enp2611_defconfig
index 9592e3925c79..5fdaf3ce9d56 100644
--- a/arch/arm/configs/enp2611_defconfig
+++ b/arch/arm/configs/enp2611_defconfig
@@ -171,7 +171,7 @@ CONFIG_ALIGNMENT_TRAP=y
 #
 CONFIG_ZBOOT_ROM_TEXT=0x0
 CONFIG_ZBOOT_ROM_BSS=0x0
-CONFIG_CMDLINE="console=ttyS0,57600 root=/dev/nfs ip=bootp mem=64M@0x0 pci=firmware"
+CONFIG_CMDLINE="console=ttyS0,57600 root=/dev/nfs ip=bootp mem=64M@0x0"
 # CONFIG_XIP_KERNEL is not set
 
 #
diff --git a/arch/arm/configs/ixdp2400_defconfig b/arch/arm/configs/ixdp2400_defconfig
index d9d6bb86a6fa..c67fc449a11f 100644
--- a/arch/arm/configs/ixdp2400_defconfig
+++ b/arch/arm/configs/ixdp2400_defconfig
@@ -172,7 +172,7 @@ CONFIG_ALIGNMENT_TRAP=y
 #
 CONFIG_ZBOOT_ROM_TEXT=0x0
 CONFIG_ZBOOT_ROM_BSS=0x0
-CONFIG_CMDLINE="console=ttyS0,57600 root=/dev/nfs ip=bootp mem=64M@0x0 pci=firmware"
+CONFIG_CMDLINE="console=ttyS0,57600 root=/dev/nfs ip=bootp mem=64M@0x0"
 # CONFIG_XIP_KERNEL is not set
 
 #
diff --git a/arch/arm/configs/ixdp2401_defconfig b/arch/arm/configs/ixdp2401_defconfig
index 2dc9d499c7d7..60d66e82c51f 100644
--- a/arch/arm/configs/ixdp2401_defconfig
+++ b/arch/arm/configs/ixdp2401_defconfig
@@ -172,7 +172,7 @@ CONFIG_ALIGNMENT_TRAP=y
 #
 CONFIG_ZBOOT_ROM_TEXT=0x0
 CONFIG_ZBOOT_ROM_BSS=0x0
-CONFIG_CMDLINE="console=ttyS0,115200 root=/dev/nfs ip=bootp mem=64M@0x0 pci=firmware"
+CONFIG_CMDLINE="console=ttyS0,115200 root=/dev/nfs ip=bootp mem=64M@0x0"
 # CONFIG_XIP_KERNEL is not set
 
 #
diff --git a/arch/arm/configs/ixdp2801_defconfig b/arch/arm/configs/ixdp2801_defconfig
index ea8f4b478fa3..f54f3dcc5b33 100644
--- a/arch/arm/configs/ixdp2801_defconfig
+++ b/arch/arm/configs/ixdp2801_defconfig
@@ -172,7 +172,7 @@ CONFIG_ALIGNMENT_TRAP=y
 #
 CONFIG_ZBOOT_ROM_TEXT=0x0
 CONFIG_ZBOOT_ROM_BSS=0x0
-CONFIG_CMDLINE="console=ttyS0,115200 root=/dev/nfs ip=bootp mem=64M@0x0 pci=firmware ixdp2x01_clock=50000000"
+CONFIG_CMDLINE="console=ttyS0,115200 root=/dev/nfs ip=bootp mem=64M@0x0"
 # CONFIG_XIP_KERNEL is not set
 
 #
diff --git a/arch/arm/configs/s3c2410_defconfig b/arch/arm/configs/s3c2410_defconfig
index 1964ccd8a71f..6695b07cf1ba 100644
--- a/arch/arm/configs/s3c2410_defconfig
+++ b/arch/arm/configs/s3c2410_defconfig
@@ -1,11 +1,10 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.15-rc1
-# Sun Nov 13 17:41:24 2005
+# Linux kernel version: 2.6.16-rc2
+# Mon Feb  6 11:17:23 2006
 #
 CONFIG_ARM=y
 CONFIG_MMU=y
-CONFIG_UID16=y
 CONFIG_RWSEM_GENERIC_SPINLOCK=y
 CONFIG_GENERIC_CALIBRATE_DELAY=y
 
@@ -28,27 +27,31 @@ CONFIG_SYSVIPC=y
 # CONFIG_BSD_PROCESS_ACCT is not set
 CONFIG_SYSCTL=y
 # CONFIG_AUDIT is not set
-# CONFIG_HOTPLUG is not set
-CONFIG_KOBJECT_UEVENT=y
 # CONFIG_IKCONFIG is not set
 CONFIG_INITRAMFS_SOURCE=""
+CONFIG_UID16=y
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
 # CONFIG_EMBEDDED is not set
 CONFIG_KALLSYMS=y
 # CONFIG_KALLSYMS_ALL is not set
 # CONFIG_KALLSYMS_EXTRA_PASS is not set
+CONFIG_HOTPLUG=y
 CONFIG_PRINTK=y
 CONFIG_BUG=y
+CONFIG_ELF_CORE=y
 CONFIG_BASE_FULL=y
 CONFIG_FUTEX=y
 CONFIG_EPOLL=y
-CONFIG_CC_OPTIMIZE_FOR_SIZE=y
 CONFIG_SHMEM=y
 CONFIG_CC_ALIGN_FUNCTIONS=0
 CONFIG_CC_ALIGN_LABELS=0
 CONFIG_CC_ALIGN_LOOPS=0
 CONFIG_CC_ALIGN_JUMPS=0
+CONFIG_SLAB=y
 # CONFIG_TINY_SHMEM is not set
 CONFIG_BASE_SMALL=0
+# CONFIG_SLOB is not set
+CONFIG_OBSOLETE_INTERMODULE=y
 
 #
 # Loadable module support
@@ -102,6 +105,7 @@ CONFIG_ARCH_S3C2410=y
 # CONFIG_ARCH_IMX is not set
 # CONFIG_ARCH_H720X is not set
 # CONFIG_ARCH_AAEC2000 is not set
+# CONFIG_ARCH_AT91RM9200 is not set
 
 #
 # S3C24XX Implementations
@@ -160,7 +164,6 @@ CONFIG_CPU_TLB_V4WBI=y
 # Bus support
 #
 CONFIG_ISA=y
-CONFIG_ISA_DMA_API=y
 
 #
 # PCCARD (PCMCIA/CardBus) support
@@ -172,6 +175,7 @@ CONFIG_ISA_DMA_API=y
 #
 # CONFIG_PREEMPT is not set
 # CONFIG_NO_IDLE_HZ is not set
+# CONFIG_AEABI is not set
 # CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set
 CONFIG_SELECT_MEMORY_MODEL=y
 CONFIG_FLATMEM_MANUAL=y
@@ -214,6 +218,8 @@ CONFIG_BINFMT_AOUT=y
 # Power management options
 #
 CONFIG_PM=y
+CONFIG_PM_LEGACY=y
+# CONFIG_PM_DEBUG is not set
 CONFIG_APM=y
 
 #
@@ -259,6 +265,11 @@ CONFIG_TCP_CONG_BIC=y
 # SCTP Configuration (EXPERIMENTAL)
 #
 # CONFIG_IP_SCTP is not set
+
+#
+# TIPC Configuration (EXPERIMENTAL)
+#
+# CONFIG_TIPC is not set
 # CONFIG_ATM is not set
 # CONFIG_BRIDGE is not set
 # CONFIG_VLAN_8021Q is not set
@@ -276,7 +287,6 @@ CONFIG_TCP_CONG_BIC=y
 # QoS and/or fair queueing
 #
 # CONFIG_NET_SCHED is not set
-# CONFIG_NET_CLS_ROUTE is not set
 
 #
 # Network testing
@@ -300,6 +310,11 @@ CONFIG_PREVENT_FIRMWARE_BUILD=y
 # CONFIG_DEBUG_DRIVER is not set
 
 #
+# Connector - unified userspace <-> kernelspace linker
+#
+# CONFIG_CONNECTOR is not set
+
+#
 # Memory Technology Devices (MTD)
 #
 CONFIG_MTD=y
@@ -412,8 +427,6 @@ CONFIG_PARPORT_1284=y
 #
 # Block devices
 #
-# CONFIG_BLK_DEV_XD is not set
-# CONFIG_PARIDE is not set
 # CONFIG_BLK_DEV_COW_COMMON is not set
 CONFIG_BLK_DEV_LOOP=y
 # CONFIG_BLK_DEV_CRYPTOLOOP is not set
@@ -502,7 +515,6 @@ CONFIG_NETDEVICES=y
 CONFIG_NET_ETHERNET=y
 CONFIG_MII=y
 # CONFIG_NET_VENDOR_3COM is not set
-# CONFIG_LANCE is not set
 # CONFIG_NET_VENDOR_SMC is not set
 # CONFIG_SMC91X is not set
 CONFIG_DM9000=y
@@ -607,11 +619,11 @@ CONFIG_SERIAL_NONSTANDARD=y
 # CONFIG_ROCKETPORT is not set
 # CONFIG_CYCLADES is not set
 # CONFIG_DIGIEPCA is not set
-# CONFIG_ESPSERIAL is not set
 # CONFIG_MOXA_INTELLIO is not set
 # CONFIG_MOXA_SMARTIO is not set
 # CONFIG_ISI is not set
 # CONFIG_SYNCLINKMP is not set
+# CONFIG_SYNCLINK_GT is not set
 # CONFIG_N_HDLC is not set
 # CONFIG_RISCOM8 is not set
 # CONFIG_SPECIALIX is not set
@@ -625,6 +637,7 @@ CONFIG_SERIAL_NONSTANDARD=y
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
 CONFIG_SERIAL_8250_NR_UARTS=8
+CONFIG_SERIAL_8250_RUNTIME_UARTS=4
 CONFIG_SERIAL_8250_EXTENDED=y
 CONFIG_SERIAL_8250_MANY_PORTS=y
 CONFIG_SERIAL_8250_SHARE_IRQ=y
@@ -687,6 +700,7 @@ CONFIG_S3C2410_RTC=y
 #
 # TPM devices
 #
+# CONFIG_TCG_TPM is not set
 # CONFIG_TELCLOCK is not set
 
 #
@@ -731,6 +745,12 @@ CONFIG_SENSORS_EEPROM=m
 # CONFIG_I2C_DEBUG_CHIP is not set
 
 #
+# SPI support
+#
+# CONFIG_SPI is not set
+# CONFIG_SPI_MASTER is not set
+
+#
 # Hardware Monitoring support
 #
 CONFIG_HWMON=y
@@ -863,6 +883,7 @@ CONFIG_FS_MBCACHE=y
 # CONFIG_JFS_FS is not set
 # CONFIG_FS_POSIX_ACL is not set
 # CONFIG_XFS_FS is not set
+# CONFIG_OCFS2_FS is not set
 # CONFIG_MINIX_FS is not set
 CONFIG_ROMFS_FS=y
 CONFIG_INOTIFY=y
@@ -897,6 +918,7 @@ CONFIG_SYSFS=y
 # CONFIG_HUGETLB_PAGE is not set
 CONFIG_RAMFS=y
 # CONFIG_RELAYFS_FS is not set
+# CONFIG_CONFIGFS_FS is not set
 
 #
 # Miscellaneous filesystems
@@ -965,6 +987,7 @@ CONFIG_SOLARIS_X86_PARTITION=y
 # CONFIG_SGI_PARTITION is not set
 # CONFIG_ULTRIX_PARTITION is not set
 # CONFIG_SUN_PARTITION is not set
+# CONFIG_KARMA_PARTITION is not set
 # CONFIG_EFI_PARTITION is not set
 
 #
@@ -1020,12 +1043,13 @@ CONFIG_NLS_DEFAULT="iso8859-1"
 # Kernel hacking
 #
 # CONFIG_PRINTK_TIME is not set
-CONFIG_DEBUG_KERNEL=y
 CONFIG_MAGIC_SYSRQ=y
+CONFIG_DEBUG_KERNEL=y
 CONFIG_LOG_BUF_SHIFT=16
 CONFIG_DETECT_SOFTLOCKUP=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_DEBUG_SLAB is not set
+CONFIG_DEBUG_MUTEXES=y
 # CONFIG_DEBUG_SPINLOCK is not set
 # CONFIG_DEBUG_SPINLOCK_SLEEP is not set
 # CONFIG_DEBUG_KOBJECT is not set
@@ -1034,6 +1058,7 @@ CONFIG_DEBUG_INFO=y
 # CONFIG_DEBUG_FS is not set
 # CONFIG_DEBUG_VM is not set
 CONFIG_FRAME_POINTER=y
+CONFIG_FORCED_INLINING=y
 # CONFIG_RCU_TORTURE_TEST is not set
 CONFIG_DEBUG_USER=y
 # CONFIG_DEBUG_WAITQ is not set
diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S
index d058e7c12568..8c3035d5ffc9 100644
--- a/arch/arm/kernel/calls.S
+++ b/arch/arm/kernel/calls.S
@@ -291,21 +291,21 @@
 		CALL(sys_mq_getsetattr)
 /* 280 */	CALL(sys_waitid)
 		CALL(sys_socket)
-		CALL(sys_bind)
-		CALL(sys_connect)
+		CALL(ABI(sys_bind, sys_oabi_bind))
+		CALL(ABI(sys_connect, sys_oabi_connect))
 		CALL(sys_listen)
 /* 285 */	CALL(sys_accept)
 		CALL(sys_getsockname)
 		CALL(sys_getpeername)
 		CALL(sys_socketpair)
 		CALL(sys_send)
-/* 290 */	CALL(sys_sendto)
+/* 290 */	CALL(ABI(sys_sendto, sys_oabi_sendto))
 		CALL(sys_recv)
 		CALL(sys_recvfrom)
 		CALL(sys_shutdown)
 		CALL(sys_setsockopt)
 /* 295 */	CALL(sys_getsockopt)
-		CALL(sys_sendmsg)
+		CALL(ABI(sys_sendmsg, sys_oabi_sendmsg))
 		CALL(sys_recvmsg)
 		CALL(ABI(sys_semop, sys_oabi_semop))
 		CALL(sys_semget)
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index d401d908c463..964cd717506b 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -333,10 +333,14 @@ __pabt_svc:
 					@ from the exception stack
 
 #if __LINUX_ARM_ARCH__ < 6 && !defined(CONFIG_NEEDS_SYSCALL_FOR_CMPXCHG)
+#ifndef CONFIG_MMU
+#warning "NPTL on non MMU needs fixing"
+#else
 	@ make sure our user space atomic helper is aborted
 	cmp	r2, #TASK_SIZE
 	bichs	r3, r3, #PSR_Z_BIT
 #endif
+#endif
 
 	@
 	@ We are now ready to fill in the remaining blanks on the stack:
@@ -705,7 +709,12 @@ __kuser_memory_barrier:				@ 0xffff0fa0
  * The C flag is also set if *ptr was changed to allow for assembly
  * optimization in the calling code.
  *
- * Note: this routine already includes memory barriers as needed.
+ * Notes:
+ *
+ *    - This routine already includes memory barriers as needed.
+ *
+ *    - A failure might be transient, i.e. it is possible, although unlikely,
+ *      that "failure" be returned even if *ptr == oldval.
  *
  * For example, a user space atomic_add implementation could look like this:
  *
@@ -756,12 +765,18 @@ __kuser_cmpxchg:				@ 0xffff0fc0
 	 * exception happening just after the str instruction which would
 	 * clear the Z flag although the exchange was done.
 	 */
+#ifdef CONFIG_MMU
 	teq	ip, ip			@ set Z flag
 	ldr	ip, [r2]		@ load current val
 	add	r3, r2, #1		@ prepare store ptr
 	teqeq	ip, r0			@ compare with oldval if still allowed
 	streq	r1, [r3, #-1]!		@ store newval if still allowed
 	subs	r0, r2, r3		@ if r2 == r3 the str occured
+#else
+#warning "NPTL on non MMU needs fixing"
+	mov	r0, #-1
+	adds	r0, r0, #0
+#endif
 	mov	pc, lr
 
 #else
diff --git a/arch/arm/kernel/sys_oabi-compat.c b/arch/arm/kernel/sys_oabi-compat.c
index eafa8e5284af..9d4b76409c64 100644
--- a/arch/arm/kernel/sys_oabi-compat.c
+++ b/arch/arm/kernel/sys_oabi-compat.c
@@ -59,6 +59,16 @@
  *   struct sembuf loses its padding with EABI.  Since arrays of them are
  *   used they have to be copyed to remove the padding. Compatibility wrappers
  *   provided below.
+ *
+ * sys_bind:
+ * sys_connect:
+ * sys_sendmsg:
+ * sys_sendto:
+ *
+ *   struct sockaddr_un loses its padding with EABI.  Since the size of the
+ *   structure is used as a validation test in unix_mkname(), we need to
+ *   change the length argument to 110 whenever it is 112.  Compatibility
+ *   wrappers provided below.
  */
 
 #include <linux/syscalls.h>
@@ -67,6 +77,7 @@
 #include <linux/fcntl.h>
 #include <linux/eventpoll.h>
 #include <linux/sem.h>
+#include <linux/socket.h>
 #include <asm/ipc.h>
 #include <asm/uaccess.h>
 
@@ -337,3 +348,63 @@ asmlinkage int sys_oabi_ipc(uint call, int first, int second, int third,
 		return sys_ipc(call, first, second, third, ptr, fifth);
 	}
 }
+
+asmlinkage long sys_oabi_bind(int fd, struct sockaddr __user *addr, int addrlen)
+{
+	sa_family_t sa_family;
+	if (addrlen == 112 &&
+	    get_user(sa_family, &addr->sa_family) == 0 &&
+	    sa_family == AF_UNIX)
+			addrlen = 110;
+	return sys_bind(fd, addr, addrlen);
+}
+
+asmlinkage long sys_oabi_connect(int fd, struct sockaddr __user *addr, int addrlen)
+{
+	sa_family_t sa_family;
+	if (addrlen == 112 &&
+	    get_user(sa_family, &addr->sa_family) == 0 &&
+	    sa_family == AF_UNIX)
+			addrlen = 110;
+	return sys_connect(fd, addr, addrlen);
+}
+
+asmlinkage long sys_oabi_sendto(int fd, void __user *buff,
+				size_t len, unsigned flags,
+				struct sockaddr __user *addr,
+				int addrlen)
+{
+	sa_family_t sa_family;
+	if (addrlen == 112 &&
+	    get_user(sa_family, &addr->sa_family) == 0 &&
+	    sa_family == AF_UNIX)
+			addrlen = 110;
+	return sys_sendto(fd, buff, len, flags, addr, addrlen);
+}
+
+asmlinkage long sys_oabi_sendmsg(int fd, struct msghdr __user *msg, unsigned flags)
+{
+	struct sockaddr __user *addr;
+	int msg_namelen;
+	sa_family_t sa_family;
+	if (msg &&
+	    get_user(msg_namelen, &msg->msg_namelen) == 0 &&
+	    msg_namelen == 112 &&
+	    get_user(addr, &msg->msg_name) == 0 &&
+	    get_user(sa_family, &addr->sa_family) == 0 &&
+	    sa_family == AF_UNIX)
+	{
+		/*
+		 * HACK ALERT: there is a limit to how much backward bending
+		 * we should do for what is actually a transitional
+		 * compatibility layer.  This already has known flaws with
+		 * a few ioctls that we don't intend to fix.  Therefore
+		 * consider this blatent hack as another one... and take care
+		 * to run for cover.  In most cases it will "just work fine".
+		 * If it doesn't, well, tough.
+		 */
+		put_user(110, &msg->msg_namelen);
+	}
+	return sys_sendmsg(fd, msg, flags);
+}
+
diff --git a/arch/arm/mach-clps711x/Kconfig b/arch/arm/mach-clps711x/Kconfig
index 0793dcf54f2e..0e2b641268ad 100644
--- a/arch/arm/mach-clps711x/Kconfig
+++ b/arch/arm/mach-clps711x/Kconfig
@@ -24,6 +24,8 @@ config ARCH_CEIVA
 
 config ARCH_CLEP7312
 	bool "CLEP7312"
+	help
+	  Boards based on the Cirrus Logic 7212/7312 chips.
 
 config ARCH_EDB7211
 	bool "EDB7211"
diff --git a/arch/arm/mach-imx/mx1ads.c b/arch/arm/mach-imx/mx1ads.c
index dc31e3fd6c57..8ab1b040288c 100644
--- a/arch/arm/mach-imx/mx1ads.c
+++ b/arch/arm/mach-imx/mx1ads.c
@@ -27,7 +27,6 @@
 #include <asm/mach/arch.h>
 #include <linux/interrupt.h>
 #include "generic.h"
-#include <asm/serial.h>
 
 static struct resource cs89x0_resources[] = {
 	[0] = {
diff --git a/arch/arm/mach-ixp2000/enp2611.c b/arch/arm/mach-ixp2000/enp2611.c
index 9e5a13bb39d0..52fac89e95b5 100644
--- a/arch/arm/mach-ixp2000/enp2611.c
+++ b/arch/arm/mach-ixp2000/enp2611.c
@@ -106,6 +106,7 @@ static void __init enp2611_pci_preinit(void)
 {
 	ixp2000_reg_write(IXP2000_PCI_ADDR_EXT, 0x00100000);
 	ixp2000_pci_preinit();
+	pcibios_setup("firmware");
 }
 
 static inline int enp2611_pci_valid_device(struct pci_bus *bus,
diff --git a/arch/arm/mach-ixp2000/ixdp2400.c b/arch/arm/mach-ixp2000/ixdp2400.c
index 7c782403042a..09101271298e 100644
--- a/arch/arm/mach-ixp2000/ixdp2400.c
+++ b/arch/arm/mach-ixp2000/ixdp2400.c
@@ -68,6 +68,7 @@ void __init ixdp2400_pci_preinit(void)
 {
 	ixp2000_reg_write(IXP2000_PCI_ADDR_EXT, 0x00100000);
 	ixp2000_pci_preinit();
+	pcibios_setup("firmware");
 }
 
 int ixdp2400_pci_setup(int nr, struct pci_sys_data *sys)
diff --git a/arch/arm/mach-ixp2000/ixdp2x01.c b/arch/arm/mach-ixp2000/ixdp2x01.c
index 10f06606d460..150519fb38ec 100644
--- a/arch/arm/mach-ixp2000/ixdp2x01.c
+++ b/arch/arm/mach-ixp2000/ixdp2x01.c
@@ -212,6 +212,7 @@ void __init ixdp2x01_pci_preinit(void)
 {
 	ixp2000_reg_write(IXP2000_PCI_ADDR_EXT, 0x00000000);
 	ixp2000_pci_preinit();
+	pcibios_setup("firmware");
 }
 
 #define DEVPIN(dev, pin) ((pin) | ((dev) << 3))
@@ -299,7 +300,9 @@ struct hw_pci ixdp2x01_pci __initdata = {
 
 int __init ixdp2x01_pci_init(void)
 {
-	pci_common_init(&ixdp2x01_pci);
+	if (machine_is_ixdp2401() || machine_is_ixdp2801())
+		pci_common_init(&ixdp2x01_pci);
+
 	return 0;
 }
 
diff --git a/arch/arm/mach-omap1/board-generic.c b/arch/arm/mach-omap1/board-generic.c
index bdc20b51b076..a177e78b2b87 100644
--- a/arch/arm/mach-omap1/board-generic.c
+++ b/arch/arm/mach-omap1/board-generic.c
@@ -30,6 +30,7 @@
 
 static void __init omap_generic_init_irq(void)
 {
+	omap1_init_common_hw();
 	omap_init_irq();
 }
 
@@ -104,7 +105,7 @@ static void __init omap_generic_init(void)
 
 static void __init omap_generic_map_io(void)
 {
-	omap_map_common_io();
+	omap1_map_common_io();
 }
 
 MACHINE_START(OMAP_GENERIC, "Generic OMAP1510/1610/1710")
diff --git a/arch/arm/mach-omap1/board-h2.c b/arch/arm/mach-omap1/board-h2.c
index 9533c36a92df..89f0cc74a519 100644
--- a/arch/arm/mach-omap1/board-h2.c
+++ b/arch/arm/mach-omap1/board-h2.c
@@ -128,6 +128,7 @@ static void __init h2_init_smc91x(void)
 
 static void __init h2_init_irq(void)
 {
+	omap1_init_common_hw();
 	omap_init_irq();
 	omap_gpio_init();
 	h2_init_smc91x();
@@ -194,7 +195,7 @@ static void __init h2_init(void)
 
 static void __init h2_map_io(void)
 {
-	omap_map_common_io();
+	omap1_map_common_io();
 }
 
 MACHINE_START(OMAP_H2, "TI-H2")
diff --git a/arch/arm/mach-omap1/board-h3.c b/arch/arm/mach-omap1/board-h3.c
index d665efc1c344..d9f386265996 100644
--- a/arch/arm/mach-omap1/board-h3.c
+++ b/arch/arm/mach-omap1/board-h3.c
@@ -203,6 +203,7 @@ static void __init h3_init_smc91x(void)
 
 void h3_init_irq(void)
 {
+	omap1_init_common_hw();
 	omap_init_irq();
 	omap_gpio_init();
 	h3_init_smc91x();
@@ -210,7 +211,7 @@ void h3_init_irq(void)
 
 static void __init h3_map_io(void)
 {
-	omap_map_common_io();
+	omap1_map_common_io();
 }
 
 MACHINE_START(OMAP_H3, "TI OMAP1710 H3 board")
diff --git a/arch/arm/mach-omap1/board-innovator.c b/arch/arm/mach-omap1/board-innovator.c
index 652f37c7f906..a04e4332915e 100644
--- a/arch/arm/mach-omap1/board-innovator.c
+++ b/arch/arm/mach-omap1/board-innovator.c
@@ -181,6 +181,7 @@ static void __init innovator_init_smc91x(void)
 
 void innovator_init_irq(void)
 {
+	omap1_init_common_hw();
 	omap_init_irq();
 	omap_gpio_init();
 #ifdef CONFIG_ARCH_OMAP15XX
@@ -285,7 +286,7 @@ static void __init innovator_init(void)
 
 static void __init innovator_map_io(void)
 {
-	omap_map_common_io();
+	omap1_map_common_io();
 
 #ifdef CONFIG_ARCH_OMAP15XX
 	if (cpu_is_omap1510()) {
diff --git a/arch/arm/mach-omap1/board-netstar.c b/arch/arm/mach-omap1/board-netstar.c
index 58f783930d45..60d5f8a3339c 100644
--- a/arch/arm/mach-omap1/board-netstar.c
+++ b/arch/arm/mach-omap1/board-netstar.c
@@ -65,6 +65,7 @@ static struct omap_board_config_kernel netstar_config[] = {
 
 static void __init netstar_init_irq(void)
 {
+	omap1_init_common_hw();
 	omap_init_irq();
 	omap_gpio_init();
 }
@@ -108,7 +109,7 @@ static void __init netstar_init(void)
 
 static void __init netstar_map_io(void)
 {
-	omap_map_common_io();
+	omap1_map_common_io();
 }
 
 #define MACHINE_PANICED		1
diff --git a/arch/arm/mach-omap1/board-osk.c b/arch/arm/mach-omap1/board-osk.c
index e5d126e8f276..543fa136106d 100644
--- a/arch/arm/mach-omap1/board-osk.c
+++ b/arch/arm/mach-omap1/board-osk.c
@@ -169,6 +169,7 @@ static void __init osk_init_cf(void)
 
 static void __init osk_init_irq(void)
 {
+	omap1_init_common_hw();
 	omap_init_irq();
 	omap_gpio_init();
 	osk_init_smc91x();
@@ -269,7 +270,7 @@ static void __init osk_init(void)
 
 static void __init osk_map_io(void)
 {
-	omap_map_common_io();
+	omap1_map_common_io();
 }
 
 MACHINE_START(OMAP_OSK, "TI-OSK")
diff --git a/arch/arm/mach-omap1/board-palmte.c b/arch/arm/mach-omap1/board-palmte.c
index 67fada207622..e488f7236775 100644
--- a/arch/arm/mach-omap1/board-palmte.c
+++ b/arch/arm/mach-omap1/board-palmte.c
@@ -34,6 +34,7 @@
 
 static void __init omap_generic_init_irq(void)
 {
+	omap1_init_common_hw();
 	omap_init_irq();
 }
 
@@ -72,7 +73,7 @@ static void __init omap_generic_init(void)
 
 static void __init omap_generic_map_io(void)
 {
-	omap_map_common_io();
+	omap1_map_common_io();
 }
 
 MACHINE_START(OMAP_PALMTE, "OMAP310 based Palm Tungsten E")
diff --git a/arch/arm/mach-omap1/board-perseus2.c b/arch/arm/mach-omap1/board-perseus2.c
index 88708a0c52a2..3913a3cc0ce6 100644
--- a/arch/arm/mach-omap1/board-perseus2.c
+++ b/arch/arm/mach-omap1/board-perseus2.c
@@ -144,6 +144,7 @@ static void __init perseus2_init_smc91x(void)
 
 void omap_perseus2_init_irq(void)
 {
+	omap1_init_common_hw();
 	omap_init_irq();
 	omap_gpio_init();
 	perseus2_init_smc91x();
@@ -160,7 +161,7 @@ static struct map_desc omap_perseus2_io_desc[] __initdata = {
 
 static void __init omap_perseus2_map_io(void)
 {
-	omap_map_common_io();
+	omap1_map_common_io();
 	iotable_init(omap_perseus2_io_desc,
 		     ARRAY_SIZE(omap_perseus2_io_desc));
 
diff --git a/arch/arm/mach-omap1/board-voiceblue.c b/arch/arm/mach-omap1/board-voiceblue.c
index 959b4b847c87..bfd5fdd1a875 100644
--- a/arch/arm/mach-omap1/board-voiceblue.c
+++ b/arch/arm/mach-omap1/board-voiceblue.c
@@ -162,6 +162,7 @@ static struct omap_board_config_kernel voiceblue_config[] = {
 
 static void __init voiceblue_init_irq(void)
 {
+	omap1_init_common_hw();
 	omap_init_irq();
 	omap_gpio_init();
 }
@@ -206,7 +207,7 @@ static void __init voiceblue_init(void)
 
 static void __init voiceblue_map_io(void)
 {
-	omap_map_common_io();
+	omap1_map_common_io();
 }
 
 #define MACHINE_PANICED		1
diff --git a/arch/arm/mach-omap1/io.c b/arch/arm/mach-omap1/io.c
index a7a19f75b9e1..82d556be79c5 100644
--- a/arch/arm/mach-omap1/io.c
+++ b/arch/arm/mach-omap1/io.c
@@ -13,6 +13,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 
+#include <asm/tlb.h>
 #include <asm/mach/map.h>
 #include <asm/io.h>
 #include <asm/arch/mux.h>
@@ -83,15 +84,24 @@ static struct map_desc omap16xx_io_desc[] __initdata = {
 };
 #endif
 
-static int initialized = 0;
-
-static void __init _omap_map_io(void)
+/*
+ * Maps common IO regions for omap1. This should only get called from
+ * board specific init.
+ */
+void __init omap1_map_common_io(void)
 {
-	initialized = 1;
-
-	/* We have to initialize the IO space mapping before we can run
-	 * cpu_is_omapxxx() macros. */
 	iotable_init(omap_io_desc, ARRAY_SIZE(omap_io_desc));
+
+	/* Normally devicemaps_init() would flush caches and tlb after
+	 * mdesc->map_io(), but we must also do it here because of the CPU
+	 * revision check below.
+	 */
+	local_flush_tlb_all();
+	flush_cache_all();
+
+	/* We want to check CPU revision early for cpu_is_omapxxxx() macros.
+	 * IO space mapping must be initialized before we can do that.
+	 */
 	omap_check_revision();
 
 #ifdef CONFIG_ARCH_OMAP730
@@ -111,7 +121,14 @@ static void __init _omap_map_io(void)
 #endif
 
 	omap_sram_init();
+}
 
+/*
+ * Common low-level hardware init for omap1. This should only get called from
+ * board specific init.
+ */
+void __init omap1_init_common_hw()
+{
 	/* REVISIT: Refer to OMAP5910 Errata, Advisory SYS_1: "Timeout Abort
 	 * on a Posted Write in the TIPB Bridge".
 	 */
@@ -121,16 +138,7 @@ static void __init _omap_map_io(void)
 	/* Must init clocks early to assure that timer interrupt works
 	 */
 	omap1_clk_init();
-}
 
-/*
- * This should only get called from board specific init
- */
-void __init omap_map_common_io(void)
-{
-	if (!initialized) {
-		_omap_map_io();
-		omap1_mux_init();
-	}
+	omap1_mux_init();
 }
 
diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c
index b937123e5c65..eaecbf422d8c 100644
--- a/arch/arm/mach-omap2/board-generic.c
+++ b/arch/arm/mach-omap2/board-generic.c
@@ -33,6 +33,7 @@
 
 static void __init omap_generic_init_irq(void)
 {
+	omap2_init_common_hw();
 	omap_init_irq();
 }
 
@@ -64,7 +65,7 @@ static void __init omap_generic_init(void)
 
 static void __init omap_generic_map_io(void)
 {
-	omap_map_common_io();
+	omap2_map_common_io();
 }
 
 MACHINE_START(OMAP_GENERIC, "Generic OMAP24xx")
diff --git a/arch/arm/mach-omap2/board-h4.c b/arch/arm/mach-omap2/board-h4.c
index c3c35d40378a..a300d634d8a5 100644
--- a/arch/arm/mach-omap2/board-h4.c
+++ b/arch/arm/mach-omap2/board-h4.c
@@ -136,6 +136,7 @@ static inline void __init h4_init_smc91x(void)
 
 static void __init omap_h4_init_irq(void)
 {
+	omap2_init_common_hw();
 	omap_init_irq();
 	omap_gpio_init();
 	h4_init_smc91x();
@@ -181,7 +182,7 @@ static void __init omap_h4_init(void)
 
 static void __init omap_h4_map_io(void)
 {
-	omap_map_common_io();
+	omap2_map_common_io();
 }
 
 MACHINE_START(OMAP_H4, "OMAP2420 H4 board")
diff --git a/arch/arm/mach-realview/core.c b/arch/arm/mach-realview/core.c
index 4a222f59f2cf..4303d988c4bf 100644
--- a/arch/arm/mach-realview/core.c
+++ b/arch/arm/mach-realview/core.c
@@ -182,7 +182,7 @@ static const struct icst307_params realview_oscvco_params = {
 static void realview_oscvco_set(struct clk *clk, struct icst307_vco vco)
 {
 	void __iomem *sys_lock = __io_address(REALVIEW_SYS_BASE) + REALVIEW_SYS_LOCK_OFFSET;
-	void __iomem *sys_osc = __io_address(REALVIEW_SYS_BASE) + REALVIEW_SYS_OSC1_OFFSET;
+	void __iomem *sys_osc = __io_address(REALVIEW_SYS_BASE) + REALVIEW_SYS_OSC4_OFFSET;
 	u32 val;
 
 	val = readl(sys_osc) & ~0x7ffff;
diff --git a/arch/arm/mach-s3c2410/clock.c b/arch/arm/mach-s3c2410/clock.c
index af2f3d52b61b..08489efdaf06 100644
--- a/arch/arm/mach-s3c2410/clock.c
+++ b/arch/arm/mach-s3c2410/clock.c
@@ -40,7 +40,6 @@
 #include <linux/mutex.h>
 
 #include <asm/hardware.h>
-#include <asm/atomic.h>
 #include <asm/irq.h>
 #include <asm/io.h>
 
@@ -59,22 +58,18 @@ static DEFINE_MUTEX(clocks_mutex);
 void inline s3c24xx_clk_enable(unsigned int clocks, unsigned int enable)
 {
 	unsigned long clkcon;
-	unsigned long flags;
-
-	local_irq_save(flags);
 
 	clkcon = __raw_readl(S3C2410_CLKCON);
-	clkcon &= ~clocks;
 
 	if (enable)
 		clkcon |= clocks;
+	else
+		clkcon &= ~clocks;
 
 	/* ensure none of the special function bits set */
 	clkcon &= ~(S3C2410_CLKCON_IDLE|S3C2410_CLKCON_POWER);
 
 	__raw_writel(clkcon, S3C2410_CLKCON);
-
-	local_irq_restore(flags);
 }
 
 /* enable and disable calls for use with the clk struct */
@@ -138,16 +133,32 @@ void clk_put(struct clk *clk)
 
 int clk_enable(struct clk *clk)
 {
-	if (IS_ERR(clk))
+	if (IS_ERR(clk) || clk == NULL)
 		return -EINVAL;
 
-	return (clk->enable)(clk, 1);
+	clk_enable(clk->parent);
+
+	mutex_lock(&clocks_mutex);
+
+	if ((clk->usage++) == 0)
+		(clk->enable)(clk, 1);
+
+	mutex_unlock(&clocks_mutex);
+	return 0;
 }
 
 void clk_disable(struct clk *clk)
 {
-	if (!IS_ERR(clk))
+	if (IS_ERR(clk) || clk == NULL)
+		return;
+
+	mutex_lock(&clocks_mutex);
+
+	if ((--clk->usage) == 0)
 		(clk->enable)(clk, 0);
+
+	mutex_unlock(&clocks_mutex);
+	clk_disable(clk->parent);
 }
 
 
@@ -361,6 +372,14 @@ int s3c24xx_register_clock(struct clk *clk)
 	if (clk->enable == NULL)
 		clk->enable = clk_null_enable;
 
+	/* if this is a standard clock, set the usage state */
+
+	if (clk->ctrlbit) {
+		unsigned long clkcon = __raw_readl(S3C2410_CLKCON);
+
+		clk->usage = (clkcon & clk->ctrlbit) ? 1 : 0;
+	}
+
 	/* add to the list of available clocks */
 
 	mutex_lock(&clocks_mutex);
@@ -402,6 +421,8 @@ int __init s3c24xx_setup_clocks(unsigned long xtal,
 	 * the LCD clock if it is not needed.
 	*/
 
+	mutex_lock(&clocks_mutex);
+
 	s3c24xx_clk_enable(S3C2410_CLKCON_NAND, 0);
 	s3c24xx_clk_enable(S3C2410_CLKCON_USBH, 0);
 	s3c24xx_clk_enable(S3C2410_CLKCON_USBD, 0);
@@ -409,6 +430,8 @@ int __init s3c24xx_setup_clocks(unsigned long xtal,
 	s3c24xx_clk_enable(S3C2410_CLKCON_IIC, 0);
 	s3c24xx_clk_enable(S3C2410_CLKCON_SPI, 0);
 
+	mutex_unlock(&clocks_mutex);
+
 	/* assume uart clocks are correctly setup */
 
 	/* register our clocks */
diff --git a/arch/arm/mach-s3c2410/clock.h b/arch/arm/mach-s3c2410/clock.h
index 177d5c8decf7..eb5c95d1e7f2 100644
--- a/arch/arm/mach-s3c2410/clock.h
+++ b/arch/arm/mach-s3c2410/clock.h
@@ -16,6 +16,7 @@ struct clk {
 	struct clk           *parent;
 	const char           *name;
 	int		      id;
+	int		      usage;
 	unsigned long         rate;
 	unsigned long         ctrlbit;
 	int		    (*enable)(struct clk *, int enable);
diff --git a/arch/arm/mach-s3c2410/devs.c b/arch/arm/mach-s3c2410/devs.c
index b8d994a24d1c..0a47d38789a5 100644
--- a/arch/arm/mach-s3c2410/devs.c
+++ b/arch/arm/mach-s3c2410/devs.c
@@ -275,6 +275,11 @@ static struct resource s3c_adc_resource[] = {
 	},
 	[1] = {
 		.start = IRQ_TC,
+		.end   = IRQ_TC,
+		.flags = IORESOURCE_IRQ,
+	},
+	[2] = {
+		.start = IRQ_ADC,
 		.end   = IRQ_ADC,
 		.flags = IORESOURCE_IRQ,
 	}
diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c
index 792f66375830..ee82763b02b8 100644
--- a/arch/arm/plat-omap/sram.c
+++ b/arch/arm/plat-omap/sram.c
@@ -17,6 +17,7 @@
 #include <linux/init.h>
 
 #include <asm/mach/map.h>
+#include <asm/tlb.h>
 #include <asm/io.h>
 #include <asm/cacheflush.h>
 
@@ -96,6 +97,14 @@ void __init omap_map_sram(void)
 	       omap_sram_io_desc[0].length);
 
 	/*
+	 * Normally devicemaps_init() would flush caches and tlb after
+	 * mdesc->map_io(), but since we're called from map_io(), we
+	 * must do it here.
+	 */
+	local_flush_tlb_all();
+	flush_cache_all();
+
+	/*
 	 * Looks like we need to preserve some bootloader code at the
 	 * beginning of SRAM for jumping to flash for reboot to work...
 	 */
diff --git a/arch/cris/arch-v10/kernel/ptrace.c b/arch/cris/arch-v10/kernel/ptrace.c
index f214f74f264e..961c0d58ded4 100644
--- a/arch/cris/arch-v10/kernel/ptrace.c
+++ b/arch/cris/arch-v10/kernel/ptrace.c
@@ -202,18 +202,18 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		  	int i;
 			unsigned long tmp;
 			
+			ret = 0;
 			for (i = 0; i <= PT_MAX; i++) {
 				tmp = get_reg(child, i);
 				
 				if (put_user(tmp, datap)) {
 					ret = -EFAULT;
-					goto out_tsk;
+					break;
 				}
 				
 				data += sizeof(long);
 			}
 
-			ret = 0;
 			break;
 		}
 
@@ -222,10 +222,11 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 			int i;
 			unsigned long tmp;
 			
+			ret = 0;
 			for (i = 0; i <= PT_MAX; i++) {
 				if (get_user(tmp, datap)) {
 					ret = -EFAULT;
-					goto out_tsk;
+					break;
 				}
 				
 				if (i == PT_DCCR) {
@@ -237,7 +238,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 				data += sizeof(long);
 			}
 			
-			ret = 0;
 			break;
 		}
 
diff --git a/arch/cris/kernel/setup.c b/arch/cris/kernel/setup.c
index d11206e467ab..1ba57efff60d 100644
--- a/arch/cris/kernel/setup.c
+++ b/arch/cris/kernel/setup.c
@@ -24,7 +24,6 @@
 /*
  * Setup options
  */
-struct drive_info_struct { char dummy[32]; } drive_info;
 struct screen_info screen_info;
 
 extern int root_mountflags;
diff --git a/arch/i386/kernel/syscall_table.S b/arch/i386/kernel/syscall_table.S
index 1b665928336b..5a8b3fb6d27b 100644
--- a/arch/i386/kernel/syscall_table.S
+++ b/arch/i386/kernel/syscall_table.S
@@ -309,3 +309,4 @@ ENTRY(sys_call_table)
 	.long sys_faccessat
 	.long sys_pselect6
 	.long sys_ppoll
+	.long sys_unshare		/* 310 */
diff --git a/arch/ia64/dig/setup.c b/arch/ia64/dig/setup.c
index d58003f1ad02..c9104bfff667 100644
--- a/arch/ia64/dig/setup.c
+++ b/arch/ia64/dig/setup.c
@@ -25,16 +25,6 @@
 #include <asm/machvec.h>
 #include <asm/system.h>
 
-/*
- * This is here so we can use the CMOS detection in ide-probe.c to
- * determine what drives are present.  In theory, we don't need this
- * as the auto-detection could be done via ide-probe.c:do_probe() but
- * in practice that would be much slower, which is painful when
- * running in the simulator.  Note that passing zeroes in DRIVE_INFO
- * is sufficient (the IDE driver will autodetect the drive geometry).
- */
-char drive_info[4*16];
-
 void __init
 dig_setup (char **cmdline_p)
 {
diff --git a/arch/ia64/kernel/efi.c b/arch/ia64/kernel/efi.c
index c485a3b32ba8..9990320b6f9a 100644
--- a/arch/ia64/kernel/efi.c
+++ b/arch/ia64/kernel/efi.c
@@ -410,24 +410,16 @@ efi_init (void)
 	efi_config_table_t *config_tables;
 	efi_char16_t *c16;
 	u64 efi_desc_size;
-	char *cp, *end, vendor[100] = "unknown";
+	char *cp, vendor[100] = "unknown";
 	extern char saved_command_line[];
 	int i;
 
 	/* it's too early to be able to use the standard kernel command line support... */
 	for (cp = saved_command_line; *cp; ) {
 		if (memcmp(cp, "mem=", 4) == 0) {
-			cp += 4;
-			mem_limit = memparse(cp, &end);
-			if (end != cp)
-				break;
-			cp = end;
+			mem_limit = memparse(cp + 4, &cp);
 		} else if (memcmp(cp, "max_addr=", 9) == 0) {
-			cp += 9;
-			max_addr = GRANULEROUNDDOWN(memparse(cp, &end));
-			if (end != cp)
-				break;
-			cp = end;
+			max_addr = GRANULEROUNDDOWN(memparse(cp + 9, &cp));
 		} else {
 			while (*cp != ' ' && *cp)
 				++cp;
@@ -458,7 +450,7 @@ efi_init (void)
 	/* Show what we know for posterity */
 	c16 = __va(efi.systab->fw_vendor);
 	if (c16) {
-		for (i = 0;i < (int) sizeof(vendor) && *c16; ++i)
+		for (i = 0;i < (int) sizeof(vendor) - 1 && *c16; ++i)
 			vendor[i] = *c16++;
 		vendor[i] = '\0';
 	}
diff --git a/arch/ia64/kernel/head.S b/arch/ia64/kernel/head.S
index fbc7ea35dd57..f1778a84ea61 100644
--- a/arch/ia64/kernel/head.S
+++ b/arch/ia64/kernel/head.S
@@ -352,6 +352,7 @@ start_ap:
 	mov ar.rsc=0		// place RSE in enforced lazy mode
 	;;
 	loadrs			// clear the dirty partition
+	mov IA64_KR(PER_CPU_DATA)=r0	// clear physical per-CPU base
 	;;
 	mov ar.bspstore=r2	// establish the new RSE stack
 	;;
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index c0766575a3a2..35f7835294a3 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -71,6 +71,8 @@ unsigned long __per_cpu_offset[NR_CPUS];
 EXPORT_SYMBOL(__per_cpu_offset);
 #endif
 
+extern void ia64_setup_printk_clock(void);
+
 DEFINE_PER_CPU(struct cpuinfo_ia64, cpu_info);
 DEFINE_PER_CPU(unsigned long, local_per_cpu_offset);
 DEFINE_PER_CPU(unsigned long, ia64_phys_stacked_size_p8);
@@ -445,6 +447,8 @@ setup_arch (char **cmdline_p)
 	/* process SAL system table: */
 	ia64_sal_init(efi.sal_systab);
 
+	ia64_setup_printk_clock();
+
 #ifdef CONFIG_SMP
 	cpu_physical_id(0) = hard_smp_processor_id();
 
diff --git a/arch/ia64/kernel/time.c b/arch/ia64/kernel/time.c
index 028a2b95936c..a094ec49ccfa 100644
--- a/arch/ia64/kernel/time.c
+++ b/arch/ia64/kernel/time.c
@@ -278,3 +278,30 @@ udelay (unsigned long usecs)
 	}
 }
 EXPORT_SYMBOL(udelay);
+
+static unsigned long long ia64_itc_printk_clock(void)
+{
+	if (ia64_get_kr(IA64_KR_PER_CPU_DATA))
+		return sched_clock();
+	return 0;
+}
+
+static unsigned long long ia64_default_printk_clock(void)
+{
+	return (unsigned long long)(jiffies_64 - INITIAL_JIFFIES) *
+		(1000000000/HZ);
+}
+
+unsigned long long (*ia64_printk_clock)(void) = &ia64_default_printk_clock;
+
+unsigned long long printk_clock(void)
+{
+	return ia64_printk_clock();
+}
+
+void __init
+ia64_setup_printk_clock(void)
+{
+	if (!(sal_platform_features & IA64_SAL_PLATFORM_FEATURE_ITC_DRIFT))
+		ia64_printk_clock = ia64_itc_printk_clock;
+}
diff --git a/arch/ia64/sn/kernel/mca.c b/arch/ia64/sn/kernel/mca.c
index 9ab684d1bb55..3db62f24596c 100644
--- a/arch/ia64/sn/kernel/mca.c
+++ b/arch/ia64/sn/kernel/mca.c
@@ -3,7 +3,7 @@
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  *
- * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ * Copyright (c) 2000-2006 Silicon Graphics, Inc.  All Rights Reserved.
  */
 
 #include <linux/types.h>
@@ -137,7 +137,8 @@ int sn_salinfo_platform_oemdata(const u8 *sect_header, u8 **oemdata, u64 *oemdat
 
 static int __init sn_salinfo_init(void)
 {
-	salinfo_platform_oemdata = &sn_salinfo_platform_oemdata;
+	if (ia64_platform_is("sn2"))
+		salinfo_platform_oemdata = &sn_salinfo_platform_oemdata;
 	return 0;
 }
 
diff --git a/arch/ia64/sn/kernel/setup.c b/arch/ia64/sn/kernel/setup.c
index ee36bff93c30..48645ac120fc 100644
--- a/arch/ia64/sn/kernel/setup.c
+++ b/arch/ia64/sn/kernel/setup.c
@@ -67,6 +67,7 @@ extern unsigned long last_time_offset;
 extern void (*ia64_mark_idle) (int);
 extern void snidle(int);
 extern unsigned char acpi_kbd_controller_present;
+extern unsigned long long (*ia64_printk_clock)(void);
 
 unsigned long sn_rtc_cycles_per_second;
 EXPORT_SYMBOL(sn_rtc_cycles_per_second);
@@ -125,20 +126,6 @@ struct screen_info sn_screen_info = {
 };
 
 /*
- * This is here so we can use the CMOS detection in ide-probe.c to
- * determine what drives are present.  In theory, we don't need this
- * as the auto-detection could be done via ide-probe.c:do_probe() but
- * in practice that would be much slower, which is painful when
- * running in the simulator.  Note that passing zeroes in DRIVE_INFO
- * is sufficient (the IDE driver will autodetect the drive geometry).
- */
-#ifdef CONFIG_IA64_GENERIC
-extern char drive_info[4 * 16];
-#else
-char drive_info[4 * 16];
-#endif
-
-/*
  * This routine can only be used during init, since
  * smp_boot_data is an init data structure.
  * We have to use smp_boot_data.cpu_phys_id to find
@@ -372,6 +359,16 @@ sn_scan_pcdp(void)
 	}
 }
 
+static unsigned long sn2_rtc_initial;
+
+static unsigned long long ia64_sn2_printk_clock(void)
+{
+	unsigned long rtc_now = rtc_time();
+
+	return (rtc_now - sn2_rtc_initial) *
+		(1000000000 / sn_rtc_cycles_per_second);
+}
+
 /**
  * sn_setup - SN platform setup routine
  * @cmdline_p: kernel command line
@@ -386,6 +383,7 @@ void __init sn_setup(char **cmdline_p)
 	u32 version = sn_sal_rev();
 	extern void sn_cpu_init(void);
 
+	sn2_rtc_initial = rtc_time();
 	ia64_sn_plat_set_error_handling_features();	// obsolete
 	ia64_sn_set_os_feature(OSF_MCA_SLV_TO_OS_INIT_SLV);
 	ia64_sn_set_os_feature(OSF_FEAT_LOG_SBES);
@@ -437,19 +435,6 @@ void __init sn_setup(char **cmdline_p)
 	 */
 	build_cnode_tables();
 
-	/*
-	 * Old PROMs do not provide an ACPI FADT. Disable legacy keyboard
-	 * support here so we don't have to listen to failed keyboard probe
-	 * messages.
-	 */
-	if (version <= 0x0209 && acpi_kbd_controller_present) {
-		printk(KERN_INFO "Disabling legacy keyboard support as prom "
-		       "is too old and doesn't provide FADT\n");
-		acpi_kbd_controller_present = 0;
-	}
-
-	printk("SGI SAL version %x.%02x\n", version >> 8, version & 0x00FF);
-
 	status =
 	    ia64_sal_freq_base(SAL_FREQ_BASE_REALTIME_CLOCK, &ticks_per_sec,
 			       &drift);
@@ -463,6 +448,21 @@ void __init sn_setup(char **cmdline_p)
 
 	platform_intr_list[ACPI_INTERRUPT_CPEI] = IA64_CPE_VECTOR;
 
+	ia64_printk_clock = ia64_sn2_printk_clock;
+
+	/*
+	 * Old PROMs do not provide an ACPI FADT. Disable legacy keyboard
+	 * support here so we don't have to listen to failed keyboard probe
+	 * messages.
+	 */
+	if (version <= 0x0209 && acpi_kbd_controller_present) {
+		printk(KERN_INFO "Disabling legacy keyboard support as prom "
+		       "is too old and doesn't provide FADT\n");
+		acpi_kbd_controller_present = 0;
+	}
+
+	printk("SGI SAL version %x.%02x\n", version >> 8, version & 0x00FF);
+
 	/*
 	 * we set the default root device to /dev/hda
 	 * to make simulation easy
diff --git a/arch/ia64/sn/kernel/sn2/sn_hwperf.c b/arch/ia64/sn/kernel/sn2/sn_hwperf.c
index 19b54fbcd7ea..70db21f3df21 100644
--- a/arch/ia64/sn/kernel/sn2/sn_hwperf.c
+++ b/arch/ia64/sn/kernel/sn2/sn_hwperf.c
@@ -3,7 +3,7 @@
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  *
- * Copyright (C) 2004-2005 Silicon Graphics, Inc. All rights reserved.
+ * Copyright (C) 2004-2006 Silicon Graphics, Inc. All rights reserved.
  *
  * SGI Altix topology and hardware performance monitoring API.
  * Mark Goodwin <markgw@sgi.com>. 
@@ -973,6 +973,9 @@ static int __devinit sn_hwperf_misc_register_init(void)
 {
 	int e;
 
+	if (!ia64_platform_is("sn2"))
+		return 0;
+
 	sn_hwperf_init();
 
 	/*
diff --git a/arch/m32r/kernel/m32r_ksyms.c b/arch/m32r/kernel/m32r_ksyms.c
index dbc8a392105f..be8b711367ec 100644
--- a/arch/m32r/kernel/m32r_ksyms.c
+++ b/arch/m32r/kernel/m32r_ksyms.c
@@ -18,11 +18,6 @@
 #include <asm/irq.h>
 #include <asm/tlbflush.h>
 
-#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_HD) || defined(CONFIG_BLK_DEV_IDE_MODULE) || defined(CONFIG_BLK_DEV_HD_MODULE)
-extern struct drive_info_struct drive_info;
-EXPORT_SYMBOL(drive_info);
-#endif
-
 /* platform dependent support */
 EXPORT_SYMBOL(boot_cpu_data);
 EXPORT_SYMBOL(dump_fpu);
diff --git a/arch/m32r/kernel/setup.c b/arch/m32r/kernel/setup.c
index c2e4dccf0112..d742037a7ccb 100644
--- a/arch/m32r/kernel/setup.c
+++ b/arch/m32r/kernel/setup.c
@@ -37,12 +37,6 @@
 extern void init_mmu(void);
 #endif
 
-#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_HD)	\
-	|| defined(CONFIG_BLK_DEV_IDE_MODULE)			\
-	|| defined(CONFIG_BLK_DEV_HD_MODULE)
-struct drive_info_struct { char dummy[32]; } drive_info;
-#endif
-
 extern char _end[];
 
 /*
diff --git a/arch/m68knommu/kernel/process.c b/arch/m68knommu/kernel/process.c
index 99bf43824795..63c117dae0c3 100644
--- a/arch/m68knommu/kernel/process.c
+++ b/arch/m68knommu/kernel/process.c
@@ -39,6 +39,14 @@
 
 asmlinkage void ret_from_fork(void);
 
+/*
+ * The following aren't currently used.
+ */
+void (*pm_idle)(void);
+EXPORT_SYMBOL(pm_idle);
+
+void (*pm_power_off)(void);
+EXPORT_SYMBOL(pm_power_off);
 
 /*
  * The idle loop on an m68knommu..
diff --git a/arch/mips/cobalt/setup.c b/arch/mips/cobalt/setup.c
index 050685b87a3c..b9713a723053 100644
--- a/arch/mips/cobalt/setup.c
+++ b/arch/mips/cobalt/setup.c
@@ -140,7 +140,7 @@ void __init plat_setup(void)
 		uart.type	= PORT_UNKNOWN;
 		uart.uartclk	= 18432000;
 		uart.irq	= COBALT_SERIAL_IRQ;
-		uart.flags	= STD_COM_FLAGS;
+		uart.flags	= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST;
 		uart.iobase	= 0xc800000;
 		uart.iotype	= UPIO_PORT;
 
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index fa98f10d0132..5232fc752935 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -4,6 +4,7 @@
  * for more details.
  *
  * Copyright (C) 1994 - 1999, 2000 by Ralf Baechle and others.
+ * Copyright (C) 2005, 2006 by Ralf Baechle (ralf@linux-mips.org)
  * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
  * Copyright (C) 2004 Thiemo Seufer
  */
@@ -58,8 +59,8 @@ ATTRIB_NORET void cpu_idle(void)
 	}
 }
 
-extern int do_signal(sigset_t *oldset, struct pt_regs *regs);
-extern int do_signal32(sigset_t *oldset, struct pt_regs *regs);
+extern void do_signal(struct pt_regs *regs);
+extern void do_signal32(struct pt_regs *regs);
 
 /*
  * Native o32 and N64 ABI without DSP ASE
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index a42e0e8caa7b..d7c4a38ed5ae 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -617,6 +617,23 @@ einval:	li	v0, -EINVAL
 	sys	sys_inotify_init	0
 	sys	sys_inotify_add_watch	3	/* 4285 */
 	sys	sys_inotify_rm_watch	2
+	sys	sys_migrate_pages	4
+	sys	sys_openat		4
+	sys	sys_mkdirat		3
+	sys	sys_mknodat		4	/* 4290 */
+	sys	sys_fchownat		5
+	sys	sys_futimesat		3
+	sys	sys_newfstatat		4
+	sys	sys_unlinkat		3
+	sys	sys_renameat		4	/* 4295 */
+	sys	sys_linkat		4
+	sys	sys_symlinkat		3
+	sys	sys_readlinkat		4
+	sys	sys_fchmodat		3
+	sys	sys_faccessat		3	/* 4300 */
+	sys	sys_pselect6		6
+	sys	sys_ppoll		5
+	sys	sys_unshare		1
 	.endm
 
 	/* We pre-compute the number of _instruction_ bytes needed to
diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S
index 47bfbd416709..98bf25df56f3 100644
--- a/arch/mips/kernel/scall64-64.S
+++ b/arch/mips/kernel/scall64-64.S
@@ -443,3 +443,20 @@ sys_call_table:
 	PTR	sys_inotify_init
 	PTR	sys_inotify_add_watch
 	PTR	sys_inotify_rm_watch		/* 5245 */
+	PTR	sys_migrate_pages
+	PTR	sys_openat
+	PTR	sys_mkdirat
+	PTR	sys_mknodat
+	PTR	sys_fchownat			/* 5250 */
+	PTR	sys_futimesat
+	PTR	sys_newfstatat
+	PTR	sys_unlinkat
+	PTR	sys_renameat
+	PTR	sys_linkat			/* 5255 */
+	PTR	sys_symlinkat
+	PTR	sys_readlinkat
+	PTR	sys_fchmodat
+	PTR	sys_faccessat
+	PTR	sys_pselect6			/* 5260 */
+	PTR	sys_ppoll
+	PTR	sys_unshare
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index b465ced1758f..bc4980cefc8b 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -369,3 +369,20 @@ EXPORT(sysn32_call_table)
 	PTR	sys_inotify_init
 	PTR	sys_inotify_add_watch
 	PTR	sys_inotify_rm_watch
+	PTR	sys_migrate_pages		/* 6250 */
+	PTR	sys_openat
+	PTR	sys_mkdirat
+	PTR	sys_mknodat
+	PTR	sys_fchownat
+	PTR	sys_futimesat			/* 6255 */
+	PTR	sys_newfstatat
+	PTR	sys_unlinkat
+	PTR	sys_renameat
+	PTR	sys_linkat
+	PTR	sys_symlinkat			/* 6260 */
+	PTR	sys_readlinkat
+	PTR	sys_fchmodat
+	PTR	sys_faccessat
+	PTR	sys_pselect6
+	PTR	sys_ppoll			/* 6265 */
+	PTR	sys_unshare
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index 3d338ca7eeeb..5b0414018c9a 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -491,4 +491,21 @@ sys_call_table:
 	PTR	sys_inotify_init
 	PTR	sys_inotify_add_watch		/* 4285 */
 	PTR	sys_inotify_rm_watch
+	PTR	sys_migrate_pages
+	PTR	compat_sys_openat
+	PTR	sys_mkdirat
+	PTR	sys_mknodat			/* 4290 */
+	PTR	sys_fchownat
+	PTR	compat_sys_futimesat
+	PTR	compat_sys_newfstatat
+	PTR	sys_unlinkat
+	PTR	sys_renameat			/* 4295 */
+	PTR	sys_linkat
+	PTR	sys_symlinkat
+	PTR	sys_readlinkat
+	PTR	sys_fchmodat
+	PTR	sys_faccessat			/* 4300 */
+	PTR	sys_pselect6
+	PTR	sys_ppoll
+	PTR	sys_unshare
 	.size	sys_call_table,.-sys_call_table
diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c
index aaec4785e9a6..c974cc9b30eb 100644
--- a/arch/mips/kernel/signal.c
+++ b/arch/mips/kernel/signal.c
@@ -39,8 +39,6 @@
 
 #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
 
-int do_signal(sigset_t *oldset, struct pt_regs *regs);
-
 /*
  * Atomically swap in the new signal mask, and wait for a signal.
  */
@@ -50,7 +48,7 @@ save_static_function(sys_sigsuspend);
 __attribute_used__ noinline static int
 _sys_sigsuspend(nabi_no_regargs struct pt_regs regs)
 {
-	sigset_t saveset, newset;
+	sigset_t newset;
 	sigset_t __user *uset;
 
 	uset = (sigset_t __user *) regs.regs[4];
@@ -59,19 +57,15 @@ _sys_sigsuspend(nabi_no_regargs struct pt_regs regs)
 	sigdelsetmask(&newset, ~_BLOCKABLE);
 
 	spin_lock_irq(&current->sighand->siglock);
-	saveset = current->blocked;
+	current->saved_sigmask = current->blocked;
 	current->blocked = newset;
 	recalc_sigpending();
 	spin_unlock_irq(&current->sighand->siglock);
 
-	regs.regs[2] = EINTR;
-	regs.regs[7] = 1;
-	while (1) {
-		current->state = TASK_INTERRUPTIBLE;
-		schedule();
-		if (do_signal(&saveset, &regs))
-			return -EINTR;
-	}
+	current->state = TASK_INTERRUPTIBLE;
+	schedule();
+	set_thread_flag(TIF_RESTORE_SIGMASK);
+	return -ERESTARTNOHAND;
 }
 #endif
 
@@ -79,7 +73,7 @@ save_static_function(sys_rt_sigsuspend);
 __attribute_used__ noinline static int
 _sys_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
 {
-	sigset_t saveset, newset;
+	sigset_t newset;
 	sigset_t __user *unewset;
 	size_t sigsetsize;
 
@@ -94,19 +88,15 @@ _sys_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
 	sigdelsetmask(&newset, ~_BLOCKABLE);
 
 	spin_lock_irq(&current->sighand->siglock);
-	saveset = current->blocked;
+	current->saved_sigmask = current->blocked;
 	current->blocked = newset;
         recalc_sigpending();
 	spin_unlock_irq(&current->sighand->siglock);
 
-	regs.regs[2] = EINTR;
-	regs.regs[7] = 1;
-	while (1) {
-		current->state = TASK_INTERRUPTIBLE;
-		schedule();
-		if (do_signal(&saveset, &regs))
-			return -EINTR;
-	}
+	current->state = TASK_INTERRUPTIBLE;
+	schedule();
+	set_thread_flag(TIF_RESTORE_SIGMASK);
+	return -ERESTARTNOHAND;
 }
 
 #ifdef CONFIG_TRAD_SIGNALS
@@ -315,11 +305,11 @@ int setup_frame(struct k_sigaction * ka, struct pt_regs *regs,
 	       current->comm, current->pid,
 	       frame, regs->cp0_epc, frame->regs[31]);
 #endif
-        return 1;
+        return 0;
 
 give_sigsegv:
 	force_sigsegv(signr, current);
-	return 0;
+	return -EFAULT;
 }
 #endif
 
@@ -375,11 +365,11 @@ int setup_rt_frame(struct k_sigaction * ka, struct pt_regs *regs,
 	       current->comm, current->pid,
 	       frame, regs->cp0_epc, regs->regs[31]);
 #endif
-	return 1;
+	return 0;
 
 give_sigsegv:
 	force_sigsegv(signr, current);
-	return 0;
+	return -EFAULT;
 }
 
 static inline int handle_signal(unsigned long sig, siginfo_t *info,
@@ -393,7 +383,7 @@ static inline int handle_signal(unsigned long sig, siginfo_t *info,
 		regs->regs[2] = EINTR;
 		break;
 	case ERESTARTSYS:
-		if(!(ka->sa.sa_flags & SA_RESTART)) {
+		if (!(ka->sa.sa_flags & SA_RESTART)) {
 			regs->regs[2] = EINTR;
 			break;
 		}
@@ -420,9 +410,10 @@ static inline int handle_signal(unsigned long sig, siginfo_t *info,
 	return ret;
 }
 
-int do_signal(sigset_t *oldset, struct pt_regs *regs)
+void do_signal(struct pt_regs *regs)
 {
 	struct k_sigaction ka;
+	sigset_t *oldset;
 	siginfo_t info;
 	int signr;
 
@@ -432,17 +423,31 @@ int do_signal(sigset_t *oldset, struct pt_regs *regs)
 	 * if so.
 	 */
 	if (!user_mode(regs))
-		return 1;
+		return;
 
 	if (try_to_freeze())
 		goto no_signal;
 
-	if (!oldset)
+	if (test_thread_flag(TIF_RESTORE_SIGMASK))
+		oldset = &current->saved_sigmask;
+	else
 		oldset = &current->blocked;
 
+
 	signr = get_signal_to_deliver(&info, &ka, regs, NULL);
-	if (signr > 0)
-		return handle_signal(signr, &info, &ka, oldset, regs);
+	if (signr > 0) {
+		/* Whee!  Actually deliver the signal.  */
+		if (handle_signal(signr, &info, &ka, oldset, regs) == 0) {
+			/*
+			 * A signal was successfully delivered; the saved
+			 * sigmask will have been stored in the signal frame,
+			 * and will be restored by sigreturn, so we can simply
+			 * clear the TIF_RESTORE_SIGMASK flag.
+			 */
+			if (test_thread_flag(TIF_RESTORE_SIGMASK))
+				clear_thread_flag(TIF_RESTORE_SIGMASK);
+		}
+	}
 
 no_signal:
 	/*
@@ -463,18 +468,25 @@ no_signal:
 			regs->cp0_epc -= 4;
 		}
 	}
-	return 0;
+
+	/*
+	 * If there's no signal to deliver, we just put the saved sigmask
+	 * back
+	 */
+	if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
+		clear_thread_flag(TIF_RESTORE_SIGMASK);
+		sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
+	}
 }
 
 /*
  * notification of userspace execution resumption
- * - triggered by current->work.notify_resume
+ * - triggered by the TIF_WORK_MASK flags
  */
-asmlinkage void do_notify_resume(struct pt_regs *regs, sigset_t *oldset,
+asmlinkage void do_notify_resume(struct pt_regs *regs, void *unused,
 	__u32 thread_info_flags)
 {
 	/* deal with pending signal delivery */
-	if (thread_info_flags & _TIF_SIGPENDING) {
-		current->thread.abi->do_signal(oldset, regs);
-	}
+	if (thread_info_flags & (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK))
+		current->thread.abi->do_signal(regs);
 }
diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c
index 136260c8f756..da3271e1fdac 100644
--- a/arch/mips/kernel/signal32.c
+++ b/arch/mips/kernel/signal32.c
@@ -694,11 +694,11 @@ int setup_frame_32(struct k_sigaction * ka, struct pt_regs *regs,
 	       current->comm, current->pid,
 	       frame, regs->cp0_epc, frame->sf_code);
 #endif
-	return 1;
+	return 0;
 
 give_sigsegv:
 	force_sigsegv(signr, current);
-	return 0;
+	return -EFAULT;
 }
 
 int setup_rt_frame_32(struct k_sigaction * ka, struct pt_regs *regs,
@@ -765,11 +765,11 @@ int setup_rt_frame_32(struct k_sigaction * ka, struct pt_regs *regs,
 	       current->comm, current->pid,
 	       frame, regs->cp0_epc, frame->rs_code);
 #endif
-	return 1;
+	return 0;
 
 give_sigsegv:
 	force_sigsegv(signr, current);
-	return 0;
+	return -EFAULT;
 }
 
 static inline int handle_signal(unsigned long sig, siginfo_t *info,
diff --git a/arch/mips/kernel/signal_n32.c b/arch/mips/kernel/signal_n32.c
index 9156863c1a5d..384fc4a639a4 100644
--- a/arch/mips/kernel/signal_n32.c
+++ b/arch/mips/kernel/signal_n32.c
@@ -186,9 +186,9 @@ int setup_rt_frame_n32(struct k_sigaction * ka,
 	       current->comm, current->pid,
 	       frame, regs->cp0_epc, regs->regs[31]);
 #endif
-	return 1;
+	return 0;
 
 give_sigsegv:
 	force_sigsegv(signr, current);
-	return 0;
+	return -EFAULT;
 }
diff --git a/arch/mips/kernel/syscall.c b/arch/mips/kernel/syscall.c
index 332358430ff5..1da2eeb3ef9e 100644
--- a/arch/mips/kernel/syscall.c
+++ b/arch/mips/kernel/syscall.c
@@ -212,12 +212,12 @@ asmlinkage int sys_execve(nabi_no_regargs struct pt_regs regs)
 	int error;
 	char * filename;
 
-	filename = getname((char *) (long)regs.regs[4]);
+	filename = getname((char __user *) (long)regs.regs[4]);
 	error = PTR_ERR(filename);
 	if (IS_ERR(filename))
 		goto out;
-	error = do_execve(filename, (char **) (long)regs.regs[5],
-	                  (char **) (long)regs.regs[6], &regs);
+	error = do_execve(filename, (char __user *__user *) (long)regs.regs[5],
+	                  (char __user *__user *) (long)regs.regs[6], &regs);
 	putname(filename);
 
 out:
@@ -227,7 +227,7 @@ out:
 /*
  * Compacrapability ...
  */
-asmlinkage int sys_uname(struct old_utsname * name)
+asmlinkage int sys_uname(struct old_utsname __user * name)
 {
 	if (name && !copy_to_user(name, &system_utsname, sizeof (*name)))
 		return 0;
@@ -237,7 +237,7 @@ asmlinkage int sys_uname(struct old_utsname * name)
 /*
  * Compacrapability ...
  */
-asmlinkage int sys_olduname(struct oldold_utsname * name)
+asmlinkage int sys_olduname(struct oldold_utsname __user * name)
 {
 	int error;
 
@@ -274,7 +274,7 @@ void sys_set_thread_area(unsigned long addr)
 asmlinkage int _sys_sysmips(int cmd, long arg1, int arg2, int arg3)
 {
 	int	tmp, len;
-	char	*name;
+	char	__user *name;
 
 	switch(cmd) {
 	case SETNAME: {
@@ -283,7 +283,7 @@ asmlinkage int _sys_sysmips(int cmd, long arg1, int arg2, int arg3)
 		if (!capable(CAP_SYS_ADMIN))
 			return -EPERM;
 
-		name = (char *) arg1;
+		name = (char __user *) arg1;
 
 		len = strncpy_from_user(nodename, name, __NEW_UTS_LEN);
 		if (len < 0)
@@ -324,7 +324,7 @@ asmlinkage int _sys_sysmips(int cmd, long arg1, int arg2, int arg3)
  * This is really horribly ugly.
  */
 asmlinkage int sys_ipc (uint call, int first, int second,
-			unsigned long third, void *ptr, long fifth)
+			unsigned long third, void __user *ptr, long fifth)
 {
 	int version, ret;
 
@@ -333,24 +333,25 @@ asmlinkage int sys_ipc (uint call, int first, int second,
 
 	switch (call) {
 	case SEMOP:
-		return sys_semtimedop (first, (struct sembuf *)ptr, second,
-		                       NULL);
+		return sys_semtimedop (first, (struct sembuf __user *)ptr,
+		                       second, NULL);
 	case SEMTIMEDOP:
-		return sys_semtimedop (first, (struct sembuf *)ptr, second,
-		                       (const struct timespec __user *)fifth);
+		return sys_semtimedop (first, (struct sembuf __user *)ptr,
+				       second,
+				       (const struct timespec __user *)fifth);
 	case SEMGET:
 		return sys_semget (first, second, third);
 	case SEMCTL: {
 		union semun fourth;
 		if (!ptr)
 			return -EINVAL;
-		if (get_user(fourth.__pad, (void **) ptr))
+		if (get_user(fourth.__pad, (void *__user *) ptr))
 			return -EFAULT;
 		return sys_semctl (first, second, third, fourth);
 	}
 
 	case MSGSND:
-		return sys_msgsnd (first, (struct msgbuf *) ptr,
+		return sys_msgsnd (first, (struct msgbuf __user *) ptr,
 				   second, third);
 	case MSGRCV:
 		switch (version) {
@@ -360,7 +361,7 @@ asmlinkage int sys_ipc (uint call, int first, int second,
 				return -EINVAL;
 
 			if (copy_from_user(&tmp,
-					   (struct ipc_kludge *) ptr,
+					   (struct ipc_kludge __user *) ptr,
 					   sizeof (tmp)))
 				return -EFAULT;
 			return sys_msgrcv (first, tmp.msgp, second,
@@ -368,35 +369,38 @@ asmlinkage int sys_ipc (uint call, int first, int second,
 		}
 		default:
 			return sys_msgrcv (first,
-					   (struct msgbuf *) ptr,
+					   (struct msgbuf __user *) ptr,
 					   second, fifth, third);
 		}
 	case MSGGET:
 		return sys_msgget ((key_t) first, second);
 	case MSGCTL:
-		return sys_msgctl (first, second, (struct msqid_ds *) ptr);
+		return sys_msgctl (first, second,
+				   (struct msqid_ds __user *) ptr);
 
 	case SHMAT:
 		switch (version) {
 		default: {
 			ulong raddr;
-			ret = do_shmat (first, (char *) ptr, second, &raddr);
+			ret = do_shmat (first, (char __user *) ptr, second,
+					&raddr);
 			if (ret)
 				return ret;
-			return put_user (raddr, (ulong *) third);
+			return put_user (raddr, (ulong __user *) third);
 		}
 		case 1:	/* iBCS2 emulator entry point */
 			if (!segment_eq(get_fs(), get_ds()))
 				return -EINVAL;
-			return do_shmat (first, (char *) ptr, second, (ulong *) third);
+			return do_shmat (first, (char __user *) ptr, second,
+					 (ulong *) third);
 		}
 	case SHMDT:
-		return sys_shmdt ((char *)ptr);
+		return sys_shmdt ((char __user *)ptr);
 	case SHMGET:
 		return sys_shmget (first, second, third);
 	case SHMCTL:
 		return sys_shmctl (first, second,
-				   (struct shmid_ds *) ptr);
+				   (struct shmid_ds __user *) ptr);
 	default:
 		return -ENOSYS;
 	}
diff --git a/arch/mips/lasat/setup.c b/arch/mips/lasat/setup.c
index dcd819d57dae..83eb08b7a072 100644
--- a/arch/mips/lasat/setup.c
+++ b/arch/mips/lasat/setup.c
@@ -134,8 +134,8 @@ void __init serial_init(void)
 
 	memset(&s, 0, sizeof(s));
 
-	s.flags = STD_COM_FLAGS;
-	s.iotype = SERIAL_IO_MEM;
+	s.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST;
+	s.iotype = UPIO_MEM;
 
 	if (mips_machtype == MACH_LASAT_100) {
 		s.uartclk = LASAT_BASE_BAUD_100 * 16;
diff --git a/arch/mips/mips-boards/atlas/atlas_setup.c b/arch/mips/mips-boards/atlas/atlas_setup.c
index 625843b30bed..873cf3141a31 100644
--- a/arch/mips/mips-boards/atlas/atlas_setup.c
+++ b/arch/mips/mips-boards/atlas/atlas_setup.c
@@ -82,8 +82,8 @@ static void __init serial_init(void)
 #endif
 	s.irq = ATLASINT_UART;
 	s.uartclk = ATLAS_BASE_BAUD * 16;
-	s.flags = ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ;
-	s.iotype = SERIAL_IO_PORT;
+	s.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ;
+	s.iotype = UPIO_PORT;
 	s.regshift = 3;
 
 	if (early_serial_setup(&s) != 0) {
diff --git a/arch/mips/mips-boards/sead/sead_setup.c b/arch/mips/mips-boards/sead/sead_setup.c
index f966bc161dfa..4266ce445174 100644
--- a/arch/mips/mips-boards/sead/sead_setup.c
+++ b/arch/mips/mips-boards/sead/sead_setup.c
@@ -71,8 +71,8 @@ static void __init serial_init(void)
 #endif
 	s.irq = MIPSCPU_INT_BASE + MIPSCPU_INT_UART0;
 	s.uartclk = SEAD_BASE_BAUD * 16;
-	s.flags = ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ;
-	s.iotype = 0;
+	s.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ;
+	s.iotype = UPIO_PORT;
 	s.regshift = 3;
 
 	if (early_serial_setup(&s) != 0) {
diff --git a/arch/mips/mips-boards/sim/sim_setup.c b/arch/mips/mips-boards/sim/sim_setup.c
index 485d5a58d9cf..a2fd62997ca3 100644
--- a/arch/mips/mips-boards/sim/sim_setup.c
+++ b/arch/mips/mips-boards/sim/sim_setup.c
@@ -88,8 +88,8 @@ static void __init serial_init(void)
 	 but poll for now */
 	s.irq =  0;
 	s.uartclk = BASE_BAUD * 16;
-	s.flags = ASYNC_BOOT_AUTOCONF | UPF_SKIP_TEST;
-	s.iotype = SERIAL_IO_PORT | ASYNC_SKIP_TEST;
+	s.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST;
+	s.iotype = UPIO_PORT;
 	s.regshift = 0;
 	s.timeout = 4;
 
diff --git a/arch/mips/momentum/jaguar_atx/ja-console.c b/arch/mips/momentum/jaguar_atx/ja-console.c
index da6e1ed34db1..2292d0ec47fc 100644
--- a/arch/mips/momentum/jaguar_atx/ja-console.c
+++ b/arch/mips/momentum/jaguar_atx/ja-console.c
@@ -93,7 +93,7 @@ static void inline ja_console_probe(void)
 	up.uartclk	= JAGUAR_ATX_UART_CLK;
 	up.regshift	= 2;
 	up.iotype	= UPIO_MEM;
-	up.flags	= ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST;
+	up.flags	= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST;
 	up.line		= 0;
 
 	if (early_serial_setup(&up))
diff --git a/arch/mips/philips/pnx8550/common/platform.c b/arch/mips/philips/pnx8550/common/platform.c
index 8aa9bd65b45e..a592260fd673 100644
--- a/arch/mips/philips/pnx8550/common/platform.c
+++ b/arch/mips/philips/pnx8550/common/platform.c
@@ -66,28 +66,28 @@ struct ip3106_port ip3106_ports[] = {
 	[0] = {
 		.port   = {
 			.type		= PORT_IP3106,
-			.iotype		= SERIAL_IO_MEM,
+			.iotype		= UPIO_MEM,
 			.membase	= (void __iomem *)PNX8550_UART_PORT0,
 			.mapbase	= PNX8550_UART_PORT0,
 			.irq		= PNX8550_UART_INT(0),
 			.uartclk	= 3692300,
 			.fifosize	= 16,
 			.ops		= &ip3106_pops,
-			.flags		= ASYNC_BOOT_AUTOCONF,
+			.flags		= UPF_BOOT_AUTOCONF,
 			.line		= 0,
 		},
 	},
 	[1] = {
 		.port   = {
 			.type		= PORT_IP3106,
-			.iotype		= SERIAL_IO_MEM,
+			.iotype		= UPIO_MEM,
 			.membase	= (void __iomem *)PNX8550_UART_PORT1,
 			.mapbase	= PNX8550_UART_PORT1,
 			.irq		= PNX8550_UART_INT(1),
 			.uartclk	= 3692300,
 			.fifosize	= 16,
 			.ops		= &ip3106_pops,
-			.flags		= ASYNC_BOOT_AUTOCONF,
+			.flags		= UPF_BOOT_AUTOCONF,
 			.line		= 1,
 		},
 	},
diff --git a/arch/mips/pmc-sierra/yosemite/setup.c b/arch/mips/pmc-sierra/yosemite/setup.c
index 059755b5ed57..8bce711575de 100644
--- a/arch/mips/pmc-sierra/yosemite/setup.c
+++ b/arch/mips/pmc-sierra/yosemite/setup.c
@@ -185,7 +185,7 @@ static void __init py_uart_setup(void)
 	up.uartclk      = TITAN_UART_CLK;
 	up.regshift     = 0;
 	up.iotype       = UPIO_MEM;
-	up.flags        = ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST;
+	up.flags        = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST;
 	up.line         = 0;
 
 	if (early_serial_setup(&up))
diff --git a/arch/mips/sgi-ip32/ip32-setup.c b/arch/mips/sgi-ip32/ip32-setup.c
index d10a269aeae1..2c38770b1e1b 100644
--- a/arch/mips/sgi-ip32/ip32-setup.c
+++ b/arch/mips/sgi-ip32/ip32-setup.c
@@ -66,11 +66,6 @@ static inline void str2eaddr(unsigned char *ea, unsigned char *str)
 #include <linux/tty.h>
 #include <linux/serial.h>
 #include <linux/serial_core.h>
-extern int early_serial_setup(struct uart_port *port);
-
-#define STD_COM_FLAGS (ASYNC_SKIP_TEST)
-#define BASE_BAUD (1843200 / 16)
-
 #endif /* CONFIG_SERIAL_8250 */
 
 /* An arbitrary time; this can be decreased if reliability looks good */
@@ -110,8 +105,8 @@ void __init plat_setup(void)
 		o2_serial[0].type	= PORT_16550A;
 		o2_serial[0].line	= 0;
 		o2_serial[0].irq	= MACEISA_SERIAL1_IRQ;
-		o2_serial[0].flags	= STD_COM_FLAGS;
-		o2_serial[0].uartclk	= BASE_BAUD * 16;
+		o2_serial[0].flags	= UPF_SKIP_TEST;
+		o2_serial[0].uartclk	= 1843200;
 		o2_serial[0].iotype	= UPIO_MEM;
 		o2_serial[0].membase	= (char *)&mace->isa.serial1;
 		o2_serial[0].fifosize	= 14;
@@ -121,8 +116,8 @@ void __init plat_setup(void)
 		o2_serial[1].type	= PORT_16550A;
 		o2_serial[1].line	= 1;
 		o2_serial[1].irq	= MACEISA_SERIAL2_IRQ;
-		o2_serial[1].flags	= STD_COM_FLAGS;
-		o2_serial[1].uartclk	= BASE_BAUD * 16;
+		o2_serial[1].flags	= UPF_SKIP_TEST;
+		o2_serial[1].uartclk	= 1843200;
 		o2_serial[1].iotype	= UPIO_MEM;
 		o2_serial[1].membase	= (char *)&mace->isa.serial2;
 		o2_serial[1].fifosize	= 14;
diff --git a/arch/parisc/hpux/sys_hpux.c b/arch/parisc/hpux/sys_hpux.c
index 29b4d61898f2..05273ccced0e 100644
--- a/arch/parisc/hpux/sys_hpux.c
+++ b/arch/parisc/hpux/sys_hpux.c
@@ -468,19 +468,23 @@ int hpux_sysfs(int opcode, unsigned long arg1, unsigned long arg2)
 	if ( opcode == 1 ) { /* GETFSIND */	
 		len = strlen_user((char *)arg1);
 		printk(KERN_DEBUG "len of arg1 = %d\n", len);
-
-		fsname = (char *) kmalloc(len+1, GFP_KERNEL);
+		if (len == 0)
+			return 0;
+		fsname = (char *) kmalloc(len, GFP_KERNEL);
 		if ( !fsname ) {
 			printk(KERN_DEBUG "failed to kmalloc fsname\n");
 			return 0;
 		}
 
-		if ( copy_from_user(fsname, (char *)arg1, len+1) ) {
+		if ( copy_from_user(fsname, (char *)arg1, len) ) {
 			printk(KERN_DEBUG "failed to copy_from_user fsname\n");
 			kfree(fsname);
 			return 0;
 		}
 
+		/* String could be altered by userspace after strlen_user() */
+		fsname[len] = '\0';
+
 		printk(KERN_DEBUG "that is '%s' as (char *)\n", fsname);
 		if ( !strcmp(fsname, "hfs") ) {
 			fstype = 0;
diff --git a/arch/powerpc/kernel/fpu.S b/arch/powerpc/kernel/fpu.S
index e4362dfa37fb..340730fb8c91 100644
--- a/arch/powerpc/kernel/fpu.S
+++ b/arch/powerpc/kernel/fpu.S
@@ -66,7 +66,7 @@ _GLOBAL(load_up_fpu)
 #else
 	ld	r4,PACACURRENT(r13)
 	addi	r5,r4,THREAD		/* Get THREAD */
-	ld	r4,THREAD_FPEXC_MODE(r5)
+	lwz	r4,THREAD_FPEXC_MODE(r5)
 	ori	r12,r12,MSR_FP
 	or	r12,r12,r4
 	std	r12,_MSR(r1)
diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S
index 308268466342..415659629394 100644
--- a/arch/powerpc/kernel/head_64.S
+++ b/arch/powerpc/kernel/head_64.S
@@ -749,11 +749,12 @@ iSeries_secondary_smp_loop:
 
 	.globl decrementer_iSeries_masked
 decrementer_iSeries_masked:
+	/* We may not have a valid TOC pointer in here. */
 	li	r11,1
 	ld	r12,PACALPPACAPTR(r13)
 	stb	r11,LPPACADECRINT(r12)
-	LOAD_REG_ADDRBASE(r12,tb_ticks_per_jiffy)
-	lwz	r12,ADDROFF(tb_ticks_per_jiffy)(r12)
+	LOAD_REG_IMMEDIATE(r12, tb_ticks_per_jiffy)
+	lwz	r12,0(r12)
 	mtspr	SPRN_DEC,r12
 	/* fall through */
 
diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c
index 4d9b4388918b..946f3219fd29 100644
--- a/arch/powerpc/kernel/iommu.c
+++ b/arch/powerpc/kernel/iommu.c
@@ -334,9 +334,6 @@ int iommu_map_sg(struct device *dev, struct iommu_table *tbl,
 
 	spin_unlock_irqrestore(&(tbl->it_lock), flags);
 
-	/* Make sure updates are seen by hardware */
-	mb();
-
 	DBG("mapped %d elements:\n", outcount);
 
 	/* For the sake of iommu_unmap_sg, we clear out the length in the
@@ -347,6 +344,10 @@ int iommu_map_sg(struct device *dev, struct iommu_table *tbl,
 		outs->dma_address = DMA_ERROR_CODE;
 		outs->dma_length = 0;
 	}
+
+	/* Make sure updates are seen by hardware */
+	mb();
+
 	return outcount;
 
  failure:
@@ -358,6 +359,8 @@ int iommu_map_sg(struct device *dev, struct iommu_table *tbl,
 			npages = (PAGE_ALIGN(s->dma_address + s->dma_length) - vaddr)
 				>> PAGE_SHIFT;
 			__iommu_free(tbl, vaddr, npages);
+			s->dma_address = DMA_ERROR_CODE;
+			s->dma_length = 0;
 		}
 	}
 	spin_unlock_irqrestore(&(tbl->it_lock), flags);
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index d50c8df0183e..294832a7e0a6 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -491,7 +491,12 @@ void __init finish_device_tree(void)
 	size = 16;
 	finish_node(allnodes, &size, 1);
 	size -= 16;
-	end = start = (unsigned long) __va(lmb_alloc(size, 128));
+
+	if (0 == size)
+		end = start = 0;
+	else
+		end = start = (unsigned long)__va(lmb_alloc(size, 128));
+
 	finish_node(allnodes, &end, 0);
 	BUG_ON(end != start + size);
 
@@ -1398,8 +1403,8 @@ struct device_node *of_find_node_by_name(struct device_node *from,
 
 	read_lock(&devtree_lock);
 	np = from ? from->allnext : allnodes;
-	for (; np != 0; np = np->allnext)
-		if (np->name != 0 && strcasecmp(np->name, name) == 0
+	for (; np != NULL; np = np->allnext)
+		if (np->name != NULL && strcasecmp(np->name, name) == 0
 		    && of_node_get(np))
 			break;
 	if (from)
@@ -1917,3 +1922,30 @@ int prom_update_property(struct device_node *np,
 
 	return 0;
 }
+
+#ifdef CONFIG_KEXEC
+/* We may have allocated the flat device tree inside the crash kernel region
+ * in prom_init. If so we need to move it out into regular memory. */
+void kdump_move_device_tree(void)
+{
+	unsigned long start, end;
+	struct boot_param_header *new;
+
+	start = __pa((unsigned long)initial_boot_params);
+	end = start + initial_boot_params->totalsize;
+
+	if (end < crashk_res.start || start > crashk_res.end)
+		return;
+
+	new = (struct boot_param_header*)
+		__va(lmb_alloc(initial_boot_params->totalsize, PAGE_SIZE));
+
+	memcpy(new, initial_boot_params, initial_boot_params->totalsize);
+
+	initial_boot_params = new;
+
+	DBG("Flat device tree blob moved to %p\n", initial_boot_params);
+
+	/* XXX should we unreserve the old DT? */
+}
+#endif /* CONFIG_KEXEC */
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index 7881ec96ef11..ec7153f4d47c 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -2098,6 +2098,10 @@ unsigned long __init prom_init(unsigned long r3, unsigned long r4,
 	 */
 	prom_init_stdout();
 
+	/* Bail if this is a kdump kernel. */
+	if (PHYSICAL_START > 0)
+		prom_panic("Error: You can't boot a kdump kernel from OF!\n");
+
 	/*
 	 * Check for an initrd
 	 */
diff --git a/arch/powerpc/kernel/prom_parse.c b/arch/powerpc/kernel/prom_parse.c
index a8099c806150..3934c227549b 100644
--- a/arch/powerpc/kernel/prom_parse.c
+++ b/arch/powerpc/kernel/prom_parse.c
@@ -465,8 +465,10 @@ u32 *of_get_pci_address(struct device_node *dev, int bar_no, u64 *size,
 	if (parent == NULL)
 		return NULL;
 	bus = of_match_bus(parent);
-	if (strcmp(bus->name, "pci"))
+	if (strcmp(bus->name, "pci")) {
+		of_node_put(parent);
 		return NULL;
+	}
 	bus->count_cells(dev, &na, &ns);
 	of_node_put(parent);
 	if (!OF_CHECK_COUNTS(na, ns))
diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index 7fe4a5c944c9..b5b2add7ad1e 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -22,6 +22,7 @@
 
 #include <asm/prom.h>
 #include <asm/rtas.h>
+#include <asm/hvcall.h>
 #include <asm/semaphore.h>
 #include <asm/machdep.h>
 #include <asm/page.h>
@@ -565,6 +566,7 @@ static int ibm_suspend_me_token = RTAS_UNKNOWN_SERVICE;
 #ifdef CONFIG_PPC_PSERIES
 static void rtas_percpu_suspend_me(void *info)
 {
+	int i;
 	long rc;
 	long flags;
 	struct rtas_suspend_me_data *data =
@@ -587,18 +589,16 @@ static void rtas_percpu_suspend_me(void *info)
 
 	if (rc == H_Continue) {
 		data->waiting = 0;
-		rtas_call(ibm_suspend_me_token, 0, 1,
-			  data->args->args);
+		data->args->args[data->args->nargs] =
+			rtas_call(ibm_suspend_me_token, 0, 1, NULL);
+		for_each_cpu(i)
+			plpar_hcall_norets(H_PROD,i);
 	} else {
 		data->waiting = -EBUSY;
 		printk(KERN_ERR "Error on H_Join hypervisor call\n");
 	}
 
 out:
-	/* before we restore interrupts, make sure we don't
-	 * generate a spurious soft lockup errors
-	 */
-	touch_softlockup_watchdog();
 	local_irq_restore(flags);
 	return;
 }
diff --git a/arch/powerpc/kernel/rtas_flash.c b/arch/powerpc/kernel/rtas_flash.c
index 50500093c97f..aaf384c3f04a 100644
--- a/arch/powerpc/kernel/rtas_flash.c
+++ b/arch/powerpc/kernel/rtas_flash.c
@@ -672,8 +672,7 @@ static void rtas_flash_firmware(int reboot_type)
 static void remove_flash_pde(struct proc_dir_entry *dp)
 {
 	if (dp) {
-		if (dp->data != NULL)
-			kfree(dp->data);
+		kfree(dp->data);
 		dp->owner = NULL;
 		remove_proc_entry(dp->name, dp->parent);
 	}
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index e29b275e09e0..a717dff695ef 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -398,6 +398,9 @@ void __init setup_system(void)
 {
 	DBG(" -> setup_system()\n");
 
+#ifdef CONFIG_KEXEC
+	kdump_move_device_tree();
+#endif
 	/*
 	 * Unflatten the device-tree passed by prom_init or kexec
 	 */
diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index c6d0595da6b5..bd837b5dbf06 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -142,11 +142,7 @@ static inline int get_old_sigaction(struct k_sigaction *new_ka,
 	return 0;
 }
 
-static inline compat_uptr_t to_user_ptr(void *kp)
-{
-	return (compat_uptr_t)(u64)kp;
-}
-
+#define to_user_ptr(p)		ptr_to_compat(p)
 #define from_user_ptr(p)	compat_ptr(p)
 
 static inline int save_general_regs(struct pt_regs *regs,
@@ -213,8 +209,8 @@ static inline int get_old_sigaction(struct k_sigaction *new_ka,
 	return 0;
 }
 
-#define to_user_ptr(p)		(p)
-#define from_user_ptr(p)	(p)
+#define to_user_ptr(p)		((unsigned long)(p))
+#define from_user_ptr(p)	((void __user *)(p))
 
 static inline int save_general_regs(struct pt_regs *regs,
 		struct mcontext __user *frame)
@@ -526,7 +522,7 @@ long compat_sys_rt_sigaction(int sig, const struct sigaction32 __user *act,
 
 	ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
 	if (!ret && oact) {
-		ret = put_user((long)old_ka.sa.sa_handler, &oact->sa_handler);
+		ret = put_user(to_user_ptr(old_ka.sa.sa_handler), &oact->sa_handler);
 		ret |= put_sigset_t(&oact->sa_mask, &old_ka.sa.sa_mask);
 		ret |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
 	}
@@ -675,8 +671,8 @@ long compat_sys_rt_sigqueueinfo(u32 pid, u32 sig, compat_siginfo_t __user *uinfo
 int compat_sys_sigaltstack(u32 __new, u32 __old, int r5,
 		      int r6, int r7, int r8, struct pt_regs *regs)
 {
-	stack_32_t __user * newstack = (stack_32_t __user *)(long) __new;
-	stack_32_t __user * oldstack = (stack_32_t __user *)(long) __old;
+	stack_32_t __user * newstack = compat_ptr(__new);
+	stack_32_t __user * oldstack = compat_ptr(__old);
 	stack_t uss, uoss;
 	int ret;
 	mm_segment_t old_fs;
@@ -708,7 +704,7 @@ int compat_sys_sigaltstack(u32 __new, u32 __old, int r5,
 	set_fs(old_fs);
 	/* Copy the stack information to the user output buffer */
 	if (!ret && oldstack  &&
-		(put_user((long)uoss.ss_sp, &oldstack->ss_sp) ||
+		(put_user(ptr_to_compat(uoss.ss_sp), &oldstack->ss_sp) ||
 		 __put_user(uoss.ss_flags, &oldstack->ss_flags) ||
 		 __put_user(uoss.ss_size, &oldstack->ss_size)))
 		return -EFAULT;
diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
index b3193116e686..497a5d3df359 100644
--- a/arch/powerpc/kernel/signal_64.c
+++ b/arch/powerpc/kernel/signal_64.c
@@ -60,8 +60,8 @@ struct rt_sigframe {
 	struct ucontext uc;
 	unsigned long _unused[2];
 	unsigned int tramp[TRAMP_SIZE];
-	struct siginfo *pinfo;
-	void *puc;
+	struct siginfo __user *pinfo;
+	void __user *puc;
 	struct siginfo info;
 	/* 64 bit ABI allows for 288 bytes below sp before decrementing it. */
 	char abigap[288];
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index c8458c531b25..13595a64f013 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -540,6 +540,9 @@ int __devinit start_secondary(void *unused)
 	if (smp_ops->take_timebase)
 		smp_ops->take_timebase();
 
+	if (system_state > SYSTEM_BOOTING)
+		per_cpu(last_jiffy, cpu) = get_tb();
+
 	spin_lock(&call_lock);
 	cpu_set(cpu, cpu_online_map);
 	spin_unlock(&call_lock);
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index c4a294d657b9..1886045a2fd8 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -612,10 +612,10 @@ void __init generic_calibrate_decr(void)
 
 	ppc_tb_freq = DEFAULT_TB_FREQ;		/* hardcoded default */
 	node_found = 0;
-	if (cpu != 0) {
+	if (cpu) {
 		fp = (unsigned int *)get_property(cpu, "timebase-frequency",
 						  NULL);
-		if (fp != 0) {
+		if (fp) {
 			node_found = 1;
 			ppc_tb_freq = *fp;
 		}
@@ -626,10 +626,10 @@ void __init generic_calibrate_decr(void)
 
 	ppc_proc_freq = DEFAULT_PROC_FREQ;
 	node_found = 0;
-	if (cpu != 0) {
+	if (cpu) {
 		fp = (unsigned int *)get_property(cpu, "clock-frequency",
 						  NULL);
-		if (fp != 0) {
+		if (fp) {
 			node_found = 1;
 			ppc_proc_freq = *fp;
 		}
diff --git a/arch/powerpc/kernel/udbg_16550.c b/arch/powerpc/kernel/udbg_16550.c
index 2da65a9c93f6..5d29dcca523c 100644
--- a/arch/powerpc/kernel/udbg_16550.c
+++ b/arch/powerpc/kernel/udbg_16550.c
@@ -144,7 +144,7 @@ unsigned int udbg_probe_uart_speed(void __iomem *comport, unsigned int clock)
 }
 
 #ifdef CONFIG_PPC_MAPLE
-void udbg_maple_real_putc(unsigned char c)
+void udbg_maple_real_putc(char c)
 {
 	if (udbg_comport) {
 		while ((real_readb(&udbg_comport->lsr) & LSR_THRE) == 0)
diff --git a/arch/powerpc/mm/lmb.c b/arch/powerpc/mm/lmb.c
index 9584608fd768..bbe3eac918e8 100644
--- a/arch/powerpc/mm/lmb.c
+++ b/arch/powerpc/mm/lmb.c
@@ -197,6 +197,8 @@ long __init lmb_reserve(unsigned long base, unsigned long size)
 {
 	struct lmb_region *_rgn = &(lmb.reserved);
 
+	BUG_ON(0 == size);
+
 	return lmb_add_region(_rgn, base, size);
 }
 
@@ -227,6 +229,8 @@ unsigned long __init lmb_alloc_base(unsigned long size, unsigned long align,
 	long i, j;
 	unsigned long base = 0;
 
+	BUG_ON(0 == size);
+
 #ifdef CONFIG_PPC32
 	/* On 32-bit, make sure we allocate lowmem */
 	if (max_addr == LMB_ALLOC_ANYWHERE)
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index 15aac0d78dfa..550517c2dd42 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -435,17 +435,12 @@ void clear_user_page(void *page, unsigned long vaddr, struct page *pg)
 {
 	clear_page(page);
 
-	if (cpu_has_feature(CPU_FTR_COHERENT_ICACHE))
-		return;
 	/*
 	 * We shouldnt have to do this, but some versions of glibc
 	 * require it (ld.so assumes zero filled pages are icache clean)
 	 * - Anton
 	 */
-
-	/* avoid an atomic op if possible */
-	if (test_bit(PG_arch_1, &pg->flags))
-		clear_bit(PG_arch_1, &pg->flags);
+	flush_dcache_page(pg);
 }
 EXPORT_SYMBOL(clear_user_page);
 
@@ -469,12 +464,7 @@ void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
 		return;
 #endif
 
-	if (cpu_has_feature(CPU_FTR_COHERENT_ICACHE))
-		return;
-
-	/* avoid an atomic op if possible */
-	if (test_bit(PG_arch_1, &pg->flags))
-		clear_bit(PG_arch_1, &pg->flags);
+	flush_dcache_page(pg);
 }
 
 void flush_icache_user_range(struct vm_area_struct *vma, struct page *page,
diff --git a/arch/powerpc/platforms/cell/Makefile b/arch/powerpc/platforms/cell/Makefile
index 16031b565be4..3b998a393e3f 100644
--- a/arch/powerpc/platforms/cell/Makefile
+++ b/arch/powerpc/platforms/cell/Makefile
@@ -2,7 +2,7 @@ obj-y			+= interrupt.o iommu.o setup.o spider-pic.o
 obj-y			+= pervasive.o
 
 obj-$(CONFIG_SMP)	+= smp.o
-obj-$(CONFIG_SPU_FS)	+= spufs/ spu-base.o
+obj-$(CONFIG_SPU_FS)	+= spu-base.o spufs/
 
 spu-base-y		+= spu_base.o spu_priv1.o
 
diff --git a/arch/powerpc/platforms/chrp/chrp.h b/arch/powerpc/platforms/chrp/chrp.h
index 3a2057fa314a..814f54742e0f 100644
--- a/arch/powerpc/platforms/chrp/chrp.h
+++ b/arch/powerpc/platforms/chrp/chrp.h
@@ -5,7 +5,6 @@
 extern void chrp_nvram_init(void);
 extern void chrp_get_rtc_time(struct rtc_time *);
 extern int chrp_set_rtc_time(struct rtc_time *);
-extern void chrp_calibrate_decr(void);
 extern long chrp_time_init(void);
 
 extern void chrp_find_bridges(void);
diff --git a/arch/powerpc/platforms/chrp/pci.c b/arch/powerpc/platforms/chrp/pci.c
index 00c52f27ef4f..8ef279ad36ad 100644
--- a/arch/powerpc/platforms/chrp/pci.c
+++ b/arch/powerpc/platforms/chrp/pci.c
@@ -204,9 +204,11 @@ static void __init setup_peg2(struct pci_controller *hose, struct device_node *d
 	struct device_node *root = find_path_device("/");
 	struct device_node *rtas;
 
+	of_node_get(root);
 	rtas = of_find_node_by_name (root, "rtas");
 	if (rtas) {
 		hose->ops = &rtas_pci_ops;
+		of_node_put(rtas);
 	} else {
 		printk ("RTAS supporting Pegasos OF not found, please upgrade"
 			" your firmware\n");
diff --git a/arch/powerpc/platforms/chrp/setup.c b/arch/powerpc/platforms/chrp/setup.c
index 2dc87aa5962f..e1fadbf49150 100644
--- a/arch/powerpc/platforms/chrp/setup.c
+++ b/arch/powerpc/platforms/chrp/setup.c
@@ -506,7 +506,7 @@ void __init chrp_init(void)
 	ppc_md.halt           = rtas_halt;
 
 	ppc_md.time_init      = chrp_time_init;
-	ppc_md.calibrate_decr = chrp_calibrate_decr;
+	ppc_md.calibrate_decr = generic_calibrate_decr;
 
 	/* this may get overridden with rtas routines later... */
 	ppc_md.set_rtc_time   = chrp_set_rtc_time;
diff --git a/arch/powerpc/platforms/chrp/time.c b/arch/powerpc/platforms/chrp/time.c
index 36a0f97bb7b1..78df2e7ca88a 100644
--- a/arch/powerpc/platforms/chrp/time.c
+++ b/arch/powerpc/platforms/chrp/time.c
@@ -167,24 +167,3 @@ void chrp_get_rtc_time(struct rtc_time *tm)
 	tm->tm_mon = mon;
 	tm->tm_year = year;
 }
-
-
-void __init chrp_calibrate_decr(void)
-{
-	struct device_node *cpu;
-	unsigned int freq, *fp;
-
-	/*
-	 * The cpu node should have a timebase-frequency property
-	 * to tell us the rate at which the decrementer counts.
-	 */
-	freq = 16666000;		/* hardcoded default */
-	cpu = find_type_devices("cpu");
-	if (cpu != 0) {
-		fp = (unsigned int *)
-			get_property(cpu, "timebase-frequency", NULL);
-		if (fp != 0)
-			freq = *fp;
-	}
-	ppc_tb_freq = freq;
-}
diff --git a/arch/powerpc/platforms/powermac/low_i2c.c b/arch/powerpc/platforms/powermac/low_i2c.c
index 535c802b369f..87eb6bb7f0e7 100644
--- a/arch/powerpc/platforms/powermac/low_i2c.c
+++ b/arch/powerpc/platforms/powermac/low_i2c.c
@@ -1052,8 +1052,7 @@ struct pmac_i2c_bus *pmac_i2c_adapter_to_bus(struct i2c_adapter *adapter)
 }
 EXPORT_SYMBOL_GPL(pmac_i2c_adapter_to_bus);
 
-extern int pmac_i2c_match_adapter(struct device_node *dev,
-				  struct i2c_adapter *adapter)
+int pmac_i2c_match_adapter(struct device_node *dev, struct i2c_adapter *adapter)
 {
 	struct pmac_i2c_bus *bus = pmac_i2c_find_bus(dev);
 
diff --git a/arch/powerpc/platforms/powermac/pci.c b/arch/powerpc/platforms/powermac/pci.c
index f671ed253901..de3f30e6b333 100644
--- a/arch/powerpc/platforms/powermac/pci.c
+++ b/arch/powerpc/platforms/powermac/pci.c
@@ -136,14 +136,14 @@ static void __init fixup_bus_range(struct device_node *bridge)
 	|(((unsigned int)(off)) & 0xFCUL) \
 	|1UL)
 
-static unsigned long macrisc_cfg_access(struct pci_controller* hose,
+static volatile void __iomem *macrisc_cfg_access(struct pci_controller* hose,
 					       u8 bus, u8 dev_fn, u8 offset)
 {
 	unsigned int caddr;
 
 	if (bus == hose->first_busno) {
 		if (dev_fn < (11 << 3))
-			return 0;
+			return NULL;
 		caddr = MACRISC_CFA0(dev_fn, offset);
 	} else
 		caddr = MACRISC_CFA1(bus, dev_fn, offset);
@@ -154,14 +154,14 @@ static unsigned long macrisc_cfg_access(struct pci_controller* hose,
 	} while (in_le32(hose->cfg_addr) != caddr);
 
 	offset &= has_uninorth ? 0x07 : 0x03;
-	return ((unsigned long)hose->cfg_data) + offset;
+	return hose->cfg_data + offset;
 }
 
 static int macrisc_read_config(struct pci_bus *bus, unsigned int devfn,
 				      int offset, int len, u32 *val)
 {
 	struct pci_controller *hose;
-	unsigned long addr;
+	volatile void __iomem *addr;
 
 	hose = pci_bus_to_host(bus);
 	if (hose == NULL)
@@ -177,13 +177,13 @@ static int macrisc_read_config(struct pci_bus *bus, unsigned int devfn,
 	 */
 	switch (len) {
 	case 1:
-		*val = in_8((u8 *)addr);
+		*val = in_8(addr);
 		break;
 	case 2:
-		*val = in_le16((u16 *)addr);
+		*val = in_le16(addr);
 		break;
 	default:
-		*val = in_le32((u32 *)addr);
+		*val = in_le32(addr);
 		break;
 	}
 	return PCIBIOS_SUCCESSFUL;
@@ -193,7 +193,7 @@ static int macrisc_write_config(struct pci_bus *bus, unsigned int devfn,
 				       int offset, int len, u32 val)
 {
 	struct pci_controller *hose;
-	unsigned long addr;
+	volatile void __iomem *addr;
 
 	hose = pci_bus_to_host(bus);
 	if (hose == NULL)
@@ -209,16 +209,16 @@ static int macrisc_write_config(struct pci_bus *bus, unsigned int devfn,
 	 */
 	switch (len) {
 	case 1:
-		out_8((u8 *)addr, val);
-		(void) in_8((u8 *)addr);
+		out_8(addr, val);
+		(void) in_8(addr);
 		break;
 	case 2:
-		out_le16((u16 *)addr, val);
-		(void) in_le16((u16 *)addr);
+		out_le16(addr, val);
+		(void) in_le16(addr);
 		break;
 	default:
-		out_le32((u32 *)addr, val);
-		(void) in_le32((u32 *)addr);
+		out_le32(addr, val);
+		(void) in_le32(addr);
 		break;
 	}
 	return PCIBIOS_SUCCESSFUL;
@@ -348,25 +348,23 @@ static int u3_ht_skip_device(struct pci_controller *hose,
 		+ (((unsigned int)bus) << 16) \
 		+ 0x01000000UL)
 
-static unsigned long u3_ht_cfg_access(struct pci_controller* hose,
+static volatile void __iomem *u3_ht_cfg_access(struct pci_controller* hose,
 					     u8 bus, u8 devfn, u8 offset)
 {
 	if (bus == hose->first_busno) {
 		/* For now, we don't self probe U3 HT bridge */
 		if (PCI_SLOT(devfn) == 0)
-			return 0;
-		return ((unsigned long)hose->cfg_data) +
-			U3_HT_CFA0(devfn, offset);
+			return NULL;
+		return hose->cfg_data + U3_HT_CFA0(devfn, offset);
 	} else
-		return ((unsigned long)hose->cfg_data) +
-			U3_HT_CFA1(bus, devfn, offset);
+		return hose->cfg_data + U3_HT_CFA1(bus, devfn, offset);
 }
 
 static int u3_ht_read_config(struct pci_bus *bus, unsigned int devfn,
 				    int offset, int len, u32 *val)
 {
 	struct pci_controller *hose;
-	unsigned long addr;
+	volatile void __iomem *addr;
 
 	hose = pci_bus_to_host(bus);
 	if (hose == NULL)
@@ -400,13 +398,13 @@ static int u3_ht_read_config(struct pci_bus *bus, unsigned int devfn,
 	 */
 	switch (len) {
 	case 1:
-		*val = in_8((u8 *)addr);
+		*val = in_8(addr);
 		break;
 	case 2:
-		*val = in_le16((u16 *)addr);
+		*val = in_le16(addr);
 		break;
 	default:
-		*val = in_le32((u32 *)addr);
+		*val = in_le32(addr);
 		break;
 	}
 	return PCIBIOS_SUCCESSFUL;
@@ -416,7 +414,7 @@ static int u3_ht_write_config(struct pci_bus *bus, unsigned int devfn,
 				     int offset, int len, u32 val)
 {
 	struct pci_controller *hose;
-	unsigned long addr;
+	volatile void __iomem *addr;
 
 	hose = pci_bus_to_host(bus);
 	if (hose == NULL)
@@ -442,16 +440,16 @@ static int u3_ht_write_config(struct pci_bus *bus, unsigned int devfn,
 	 */
 	switch (len) {
 	case 1:
-		out_8((u8 *)addr, val);
-		(void) in_8((u8 *)addr);
+		out_8(addr, val);
+		(void) in_8(addr);
 		break;
 	case 2:
-		out_le16((u16 *)addr, val);
-		(void) in_le16((u16 *)addr);
+		out_le16(addr, val);
+		(void) in_le16(addr);
 		break;
 	default:
-		out_le32((u32 *)addr, val);
-		(void) in_le32((u32 *)addr);
+		out_le32((u32 __iomem *)addr, val);
+		(void) in_le32(addr);
 		break;
 	}
 	return PCIBIOS_SUCCESSFUL;
@@ -476,7 +474,7 @@ static struct pci_ops u3_ht_pci_ops =
 	 |(((unsigned int)(off)) & 0xfcU)	\
 	 |1UL)
 
-static unsigned long u4_pcie_cfg_access(struct pci_controller* hose,
+static volatile void __iomem *u4_pcie_cfg_access(struct pci_controller* hose,
 					u8 bus, u8 dev_fn, int offset)
 {
 	unsigned int caddr;
@@ -492,14 +490,14 @@ static unsigned long u4_pcie_cfg_access(struct pci_controller* hose,
 	} while (in_le32(hose->cfg_addr) != caddr);
 
 	offset &= 0x03;
-	return ((unsigned long)hose->cfg_data) + offset;
+	return hose->cfg_data + offset;
 }
 
 static int u4_pcie_read_config(struct pci_bus *bus, unsigned int devfn,
 			       int offset, int len, u32 *val)
 {
 	struct pci_controller *hose;
-	unsigned long addr;
+	volatile void __iomem *addr;
 
 	hose = pci_bus_to_host(bus);
 	if (hose == NULL)
@@ -515,13 +513,13 @@ static int u4_pcie_read_config(struct pci_bus *bus, unsigned int devfn,
 	 */
 	switch (len) {
 	case 1:
-		*val = in_8((u8 *)addr);
+		*val = in_8(addr);
 		break;
 	case 2:
-		*val = in_le16((u16 *)addr);
+		*val = in_le16(addr);
 		break;
 	default:
-		*val = in_le32((u32 *)addr);
+		*val = in_le32(addr);
 		break;
 	}
 	return PCIBIOS_SUCCESSFUL;
@@ -531,7 +529,7 @@ static int u4_pcie_write_config(struct pci_bus *bus, unsigned int devfn,
 				int offset, int len, u32 val)
 {
 	struct pci_controller *hose;
-	unsigned long addr;
+	volatile void __iomem *addr;
 
 	hose = pci_bus_to_host(bus);
 	if (hose == NULL)
@@ -547,16 +545,16 @@ static int u4_pcie_write_config(struct pci_bus *bus, unsigned int devfn,
 	 */
 	switch (len) {
 	case 1:
-		out_8((u8 *)addr, val);
-		(void) in_8((u8 *)addr);
+		out_8(addr, val);
+		(void) in_8(addr);
 		break;
 	case 2:
-		out_le16((u16 *)addr, val);
-		(void) in_le16((u16 *)addr);
+		out_le16(addr, val);
+		(void) in_le16(addr);
 		break;
 	default:
-		out_le32((u32 *)addr, val);
-		(void) in_le32((u32 *)addr);
+		out_le32(addr, val);
+		(void) in_le32(addr);
 		break;
 	}
 	return PCIBIOS_SUCCESSFUL;
@@ -773,8 +771,7 @@ static void __init setup_u3_ht(struct pci_controller* hose)
 	 * the reg address cell, we shall fix that by killing struct
 	 * reg_property and using some accessor functions instead
 	 */
-	hose->cfg_data = (volatile unsigned char *)ioremap(0xf2000000,
-							   0x02000000);
+	hose->cfg_data = ioremap(0xf2000000, 0x02000000);
 
 	/*
 	 * /ht node doesn't expose a "ranges" property, so we "remove"
diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c
index 89c4c3636161..1955462f4082 100644
--- a/arch/powerpc/platforms/powermac/setup.c
+++ b/arch/powerpc/platforms/powermac/setup.c
@@ -82,8 +82,6 @@
 
 #undef SHOW_GATWICK_IRQS
 
-unsigned char drive_info;
-
 int ppc_override_l2cr = 0;
 int ppc_override_l2cr_value;
 int has_l2cache = 0;
diff --git a/arch/powerpc/platforms/pseries/eeh_driver.c b/arch/powerpc/platforms/pseries/eeh_driver.c
index 6373372932ba..e3cbba49fd6e 100644
--- a/arch/powerpc/platforms/pseries/eeh_driver.c
+++ b/arch/powerpc/platforms/pseries/eeh_driver.c
@@ -333,7 +333,7 @@ void handle_eeh_events (struct eeh_event *event)
 		rc = eeh_reset_device(frozen_pdn, NULL);
 		if (rc)
 			goto hard_fail;
-		pci_walk_bus(frozen_bus, eeh_report_reset, 0);
+		pci_walk_bus(frozen_bus, eeh_report_reset, NULL);
 	}
 
 	/* If all devices reported they can proceed, the re-enable PIO */
@@ -342,11 +342,11 @@ void handle_eeh_events (struct eeh_event *event)
 		rc = eeh_reset_device(frozen_pdn, NULL);
 		if (rc)
 			goto hard_fail;
-		pci_walk_bus(frozen_bus, eeh_report_reset, 0);
+		pci_walk_bus(frozen_bus, eeh_report_reset, NULL);
 	}
 
 	/* Tell all device drivers that they can resume operations */
-	pci_walk_bus(frozen_bus, eeh_report_resume, 0);
+	pci_walk_bus(frozen_bus, eeh_report_resume, NULL);
 
 	return;
 	
@@ -367,7 +367,7 @@ hard_fail:
 	eeh_slot_error_detail(frozen_pdn, 2 /* Permanent Error */);
 
 	/* Notify all devices that they're about to go down. */
-	pci_walk_bus(frozen_bus, eeh_report_failure, 0);
+	pci_walk_bus(frozen_bus, eeh_report_failure, NULL);
 
 	/* Shut down the device drivers for good. */
 	pcibios_remove_pci_devices(frozen_bus);
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index da6cebaf72cd..9edeca83f434 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -585,7 +585,7 @@ static int pSeries_pci_probe_mode(struct pci_bus *bus)
 static void pseries_kexec_cpu_down(int crash_shutdown, int secondary)
 {
 	/* Don't risk a hypervisor call if we're crashing */
-	if (!crash_shutdown) {
+	if (firmware_has_feature(FW_FEATURE_SPLPAR) && !crash_shutdown) {
 		unsigned long vpa = __pa(get_lppaca());
 
 		if (unregister_vpa(hard_smp_processor_id(), vpa)) {
diff --git a/arch/powerpc/sysdev/dart_iommu.c b/arch/powerpc/sysdev/dart_iommu.c
index 977de9db8754..6298264efe36 100644
--- a/arch/powerpc/sysdev/dart_iommu.c
+++ b/arch/powerpc/sysdev/dart_iommu.c
@@ -59,7 +59,7 @@ static unsigned long dart_tablesize;
 static u32 *dart_vbase;
 
 /* Mapped base address for the dart */
-static unsigned int *__iomem dart;
+static unsigned int __iomem *dart;
 
 /* Dummy val that entries are set to when unused */
 static unsigned int dart_emptyval;
diff --git a/arch/ppc/kernel/head_8xx.S b/arch/ppc/kernel/head_8xx.S
index 3e6ca7f5843f..c1e89ad0684d 100644
--- a/arch/ppc/kernel/head_8xx.S
+++ b/arch/ppc/kernel/head_8xx.S
@@ -810,13 +810,16 @@ initial_mmu:
 	mtspr	SPRN_MD_TWC, r9
 	li	r11, MI_BOOTINIT	/* Create RPN for address 0 */
 	addis	r11, r11, 0x0080	/* Add 8M */
-	mtspr	SPRN_MD_RPN, r8
+	mtspr	SPRN_MD_RPN, r11
+
+	addi	r10, r10, 0x0100
+	mtspr	SPRN_MD_CTR, r10
 
 	addis	r8, r8, 0x0080		/* Add 8M */
 	mtspr	SPRN_MD_EPN, r8
 	mtspr	SPRN_MD_TWC, r9
 	addis	r11, r11, 0x0080	/* Add 8M */
-	mtspr	SPRN_MD_RPN, r8
+	mtspr	SPRN_MD_RPN, r11
 #endif
 
 	/* Since the cache is enabled according to the information we
diff --git a/arch/ppc/kernel/ppc_ksyms.c b/arch/ppc/kernel/ppc_ksyms.c
index 3a6e4bcb3c53..15bd9b448a48 100644
--- a/arch/ppc/kernel/ppc_ksyms.c
+++ b/arch/ppc/kernel/ppc_ksyms.c
@@ -186,11 +186,15 @@ EXPORT_SYMBOL(flush_tlb_kernel_range);
 EXPORT_SYMBOL(flush_tlb_page);
 EXPORT_SYMBOL(_tlbie);
 #ifdef CONFIG_ALTIVEC
+#ifndef CONFIG_SMP
 EXPORT_SYMBOL(last_task_used_altivec);
+#endif
 EXPORT_SYMBOL(giveup_altivec);
 #endif /* CONFIG_ALTIVEC */
 #ifdef CONFIG_SPE
+#ifndef CONFIG_SMP
 EXPORT_SYMBOL(last_task_used_spe);
+#endif
 EXPORT_SYMBOL(giveup_spe);
 #endif /* CONFIG_SPE */
 #ifdef CONFIG_SMP
diff --git a/arch/ppc/platforms/4xx/bamboo.c b/arch/ppc/platforms/4xx/bamboo.c
index 159b228eca1e..0ec53f049338 100644
--- a/arch/ppc/platforms/4xx/bamboo.c
+++ b/arch/ppc/platforms/4xx/bamboo.c
@@ -332,8 +332,8 @@ bamboo_early_serial_map(void)
 	port.irq = 0;
 	port.uartclk = clocks.uart0;
 	port.regshift = 0;
-	port.iotype = SERIAL_IO_MEM;
-	port.flags = ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST;
+	port.iotype = UPIO_MEM;
+	port.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST;
 	port.line = 0;
 
 	if (early_serial_setup(&port) != 0) {
diff --git a/arch/ppc/platforms/4xx/bubinga.c b/arch/ppc/platforms/4xx/bubinga.c
index 8110f55668c5..ce48a4f08cbb 100644
--- a/arch/ppc/platforms/4xx/bubinga.c
+++ b/arch/ppc/platforms/4xx/bubinga.c
@@ -97,8 +97,8 @@ bubinga_early_serial_map(void)
 	port.irq = ACTING_UART0_INT;
 	port.uartclk = uart_clock;
 	port.regshift = 0;
-	port.iotype = SERIAL_IO_MEM;
-	port.flags = ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST;
+	port.iotype = UPIO_MEM;
+	port.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST;
 	port.line = 0;
 
 	if (early_serial_setup(&port) != 0) {
diff --git a/arch/ppc/platforms/4xx/ebony.c b/arch/ppc/platforms/4xx/ebony.c
index 64ebae19cdbb..9a828b623417 100644
--- a/arch/ppc/platforms/4xx/ebony.c
+++ b/arch/ppc/platforms/4xx/ebony.c
@@ -225,8 +225,8 @@ ebony_early_serial_map(void)
 	port.irq = 0;
 	port.uartclk = clocks.uart0;
 	port.regshift = 0;
-	port.iotype = SERIAL_IO_MEM;
-	port.flags = ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST;
+	port.iotype = UPIO_MEM;
+	port.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST;
 	port.line = 0;
 
 	if (early_serial_setup(&port) != 0) {
diff --git a/arch/ppc/platforms/4xx/luan.c b/arch/ppc/platforms/4xx/luan.c
index d810b736d9bf..21d29132aebd 100644
--- a/arch/ppc/platforms/4xx/luan.c
+++ b/arch/ppc/platforms/4xx/luan.c
@@ -279,8 +279,8 @@ luan_early_serial_map(void)
 	port.irq = UART0_INT;
 	port.uartclk = clocks.uart0;
 	port.regshift = 0;
-	port.iotype = SERIAL_IO_MEM;
-	port.flags = ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST;
+	port.iotype = UPIO_MEM;
+	port.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST;
 	port.line = 0;
 
 	if (early_serial_setup(&port) != 0) {
diff --git a/arch/ppc/platforms/4xx/ocotea.c b/arch/ppc/platforms/4xx/ocotea.c
index 73b2c98158f6..4f355b6acab2 100644
--- a/arch/ppc/platforms/4xx/ocotea.c
+++ b/arch/ppc/platforms/4xx/ocotea.c
@@ -248,8 +248,8 @@ ocotea_early_serial_map(void)
 	port.irq = UART0_INT;
 	port.uartclk = clocks.uart0;
 	port.regshift = 0;
-	port.iotype = SERIAL_IO_MEM;
-	port.flags = ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST;
+	port.iotype = UPIO_MEM;
+	port.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST;
 	port.line = 0;
 
 	if (early_serial_setup(&port) != 0) {
diff --git a/arch/ppc/platforms/4xx/xilinx_ml300.c b/arch/ppc/platforms/4xx/xilinx_ml300.c
index 0b1b77d986bf..e90d97f64f76 100644
--- a/arch/ppc/platforms/4xx/xilinx_ml300.c
+++ b/arch/ppc/platforms/4xx/xilinx_ml300.c
@@ -95,8 +95,8 @@ ml300_early_serial_map(void)
 		port.irq = old_ports[i].irq;
 		port.uartclk = old_ports[i].baud_base * 16;
 		port.regshift = old_ports[i].iomem_reg_shift;
-		port.iotype = SERIAL_IO_MEM;
-		port.flags = ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST;
+		port.iotype = UPIO_MEM;
+		port.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST;
 		port.line = i;
 
 		if (early_serial_setup(&port) != 0) {
diff --git a/arch/ppc/platforms/4xx/yucca.c b/arch/ppc/platforms/4xx/yucca.c
index e60f4bd437ec..b065b8babcd3 100644
--- a/arch/ppc/platforms/4xx/yucca.c
+++ b/arch/ppc/platforms/4xx/yucca.c
@@ -305,8 +305,8 @@ yucca_early_serial_map(void)
 	port.irq = UART0_INT;
 	port.uartclk = clocks.uart0;
 	port.regshift = 0;
-	port.iotype = SERIAL_IO_MEM;
-	port.flags = ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST;
+	port.iotype = UPIO_MEM;
+	port.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST;
 	port.line = 0;
 
 	if (early_serial_setup(&port) != 0) {
diff --git a/arch/ppc/platforms/83xx/mpc834x_sys.c b/arch/ppc/platforms/83xx/mpc834x_sys.c
index 012e1e652c03..1a659bbc1860 100644
--- a/arch/ppc/platforms/83xx/mpc834x_sys.c
+++ b/arch/ppc/platforms/83xx/mpc834x_sys.c
@@ -301,14 +301,14 @@ platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
 		struct uart_port p;
 
 		memset(&p, 0, sizeof (p));
-		p.iotype = SERIAL_IO_MEM;
+		p.iotype = UPIO_MEM;
 		p.membase = (unsigned char __iomem *)(VIRT_IMMRBAR + 0x4500);
 		p.uartclk = binfo->bi_busfreq;
 
 		gen550_init(0, &p);
 
 		memset(&p, 0, sizeof (p));
-		p.iotype = SERIAL_IO_MEM;
+		p.iotype = UPIO_MEM;
 		p.membase = (unsigned char __iomem *)(VIRT_IMMRBAR + 0x4600);
 		p.uartclk = binfo->bi_busfreq;
 
diff --git a/arch/ppc/platforms/85xx/mpc8540_ads.c b/arch/ppc/platforms/85xx/mpc8540_ads.c
index 2eceb1e6f4eb..408d64f18e1a 100644
--- a/arch/ppc/platforms/85xx/mpc8540_ads.c
+++ b/arch/ppc/platforms/85xx/mpc8540_ads.c
@@ -162,14 +162,14 @@ platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
 			  binfo->bi_immr_base, MPC85xx_CCSRBAR_SIZE, _PAGE_IO, 0);
 
 		memset(&p, 0, sizeof (p));
-		p.iotype = SERIAL_IO_MEM;
+		p.iotype = UPIO_MEM;
 		p.membase = (void *) binfo->bi_immr_base + MPC85xx_UART0_OFFSET;
 		p.uartclk = binfo->bi_busfreq;
 
 		gen550_init(0, &p);
 
 		memset(&p, 0, sizeof (p));
-		p.iotype = SERIAL_IO_MEM;
+		p.iotype = UPIO_MEM;
 		p.membase = (void *) binfo->bi_immr_base + MPC85xx_UART1_OFFSET;
 		p.uartclk = binfo->bi_busfreq;
 
diff --git a/arch/ppc/platforms/85xx/mpc85xx_cds_common.c b/arch/ppc/platforms/85xx/mpc85xx_cds_common.c
index b332ebae6bd3..1801ab392e22 100644
--- a/arch/ppc/platforms/85xx/mpc85xx_cds_common.c
+++ b/arch/ppc/platforms/85xx/mpc85xx_cds_common.c
@@ -534,14 +534,14 @@ platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
 				binfo->bi_immr_base, MPC85xx_CCSRBAR_SIZE, _PAGE_IO, 0);
 
 		memset(&p, 0, sizeof (p));
-		p.iotype = SERIAL_IO_MEM;
+		p.iotype = UPIO_MEM;
 		p.membase = (void *) binfo->bi_immr_base + MPC85xx_UART0_OFFSET;
 		p.uartclk = binfo->bi_busfreq;
 
 		gen550_init(0, &p);
 
 		memset(&p, 0, sizeof (p));
-		p.iotype = SERIAL_IO_MEM;
+		p.iotype = UPIO_MEM;
 		p.membase = (void *) binfo->bi_immr_base + MPC85xx_UART1_OFFSET;
 		p.uartclk = binfo->bi_busfreq;
 
diff --git a/arch/ppc/platforms/85xx/sbc8560.c b/arch/ppc/platforms/85xx/sbc8560.c
index e777ba824aa9..8a72221f816c 100644
--- a/arch/ppc/platforms/85xx/sbc8560.c
+++ b/arch/ppc/platforms/85xx/sbc8560.c
@@ -64,7 +64,7 @@ sbc8560_early_serial_map(void)
 	uart_req.irq = MPC85xx_IRQ_EXT9;
 	uart_req.flags = STD_COM_FLAGS;
 	uart_req.uartclk = BASE_BAUD * 16;
-        uart_req.iotype = SERIAL_IO_MEM;
+        uart_req.iotype = UPIO_MEM;
         uart_req.mapbase = UARTA_ADDR;
         uart_req.membase = ioremap(uart_req.mapbase, MPC85xx_UART0_SIZE);
 	uart_req.type = PORT_16650;
diff --git a/arch/ppc/platforms/85xx/tqm85xx.c b/arch/ppc/platforms/85xx/tqm85xx.c
index b436f4d0a3fa..a5e38ba62732 100644
--- a/arch/ppc/platforms/85xx/tqm85xx.c
+++ b/arch/ppc/platforms/85xx/tqm85xx.c
@@ -346,14 +346,14 @@ platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
 			  binfo->bi_immr_base, MPC85xx_CCSRBAR_SIZE, _PAGE_IO, 0);
 
 		memset(&p, 0, sizeof (p));
-		p.iotype = SERIAL_IO_MEM;
+		p.iotype = UPIO_MEM;
 		p.membase = (void *) binfo->bi_immr_base + MPC85xx_UART0_OFFSET;
 		p.uartclk = binfo->bi_busfreq;
 
 		gen550_init(0, &p);
 
 		memset(&p, 0, sizeof (p));
-		p.iotype = SERIAL_IO_MEM;
+		p.iotype = UPIO_MEM;
 		p.membase = (void *) binfo->bi_immr_base + MPC85xx_UART1_OFFSET;
 		p.uartclk = binfo->bi_busfreq;
 
diff --git a/arch/ppc/platforms/chestnut.c b/arch/ppc/platforms/chestnut.c
index 48a4a510d598..aefcc0e7be57 100644
--- a/arch/ppc/platforms/chestnut.c
+++ b/arch/ppc/platforms/chestnut.c
@@ -116,7 +116,7 @@ chestnut_early_serial_map(void)
 	port.uartclk = BASE_BAUD * 16;
 	port.irq = UART0_INT;
 	port.flags = STD_COM_FLAGS | UPF_IOREMAP;
-	port.iotype = SERIAL_IO_MEM;
+	port.iotype = UPIO_MEM;
 	port.mapbase = CHESTNUT_UART0_IO_BASE;
 	port.regshift = 0;
 
diff --git a/arch/ppc/platforms/ev64260.c b/arch/ppc/platforms/ev64260.c
index 32358b3fb236..ffde8f6f6302 100644
--- a/arch/ppc/platforms/ev64260.c
+++ b/arch/ppc/platforms/ev64260.c
@@ -330,7 +330,7 @@ ev64260_early_serial_map(void)
 		port.irq = EV64260_UART_0_IRQ;
 		port.uartclk = BASE_BAUD * 16;
 		port.regshift = 2;
-		port.iotype = SERIAL_IO_MEM;
+		port.iotype = UPIO_MEM;
 		port.flags = STD_COM_FLAGS;
 
 #if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB)
diff --git a/arch/ppc/platforms/radstone_ppc7d.c b/arch/ppc/platforms/radstone_ppc7d.c
index 708b8739ecdd..872c0a3ba3c7 100644
--- a/arch/ppc/platforms/radstone_ppc7d.c
+++ b/arch/ppc/platforms/radstone_ppc7d.c
@@ -100,7 +100,7 @@ static void __init ppc7d_early_serial_map(void)
 	serial_req.uartclk = UART_CLK;
 	serial_req.irq = 4;
 	serial_req.flags = STD_COM_FLAGS;
-	serial_req.iotype = SERIAL_IO_MEM;
+	serial_req.iotype = UPIO_MEM;
 	serial_req.membase = (u_char *) PPC7D_SERIAL_0;
 
 	gen550_init(0, &serial_req);
diff --git a/arch/ppc/platforms/spruce.c b/arch/ppc/platforms/spruce.c
index 5ad70d357cb9..69e1de7971f2 100644
--- a/arch/ppc/platforms/spruce.c
+++ b/arch/ppc/platforms/spruce.c
@@ -176,8 +176,8 @@ spruce_early_serial_map(void)
 	memset(&serial_req, 0, sizeof(serial_req));
 	serial_req.uartclk = uart_clk;
 	serial_req.irq = UART0_INT;
-	serial_req.flags = ASYNC_BOOT_AUTOCONF;
-	serial_req.iotype = SERIAL_IO_MEM;
+	serial_req.flags = UPF_BOOT_AUTOCONF;
+	serial_req.iotype = UPIO_MEM;
 	serial_req.membase = (u_char *)UART0_IO_BASE;
 	serial_req.regshift = 0;
 
diff --git a/arch/ppc/syslib/ocp.c b/arch/ppc/syslib/ocp.c
index ab34b1d6072f..2fe28ded2c60 100644
--- a/arch/ppc/syslib/ocp.c
+++ b/arch/ppc/syslib/ocp.c
@@ -189,8 +189,8 @@ ocp_device_resume(struct device *dev)
 struct bus_type ocp_bus_type = {
 	.name = "ocp",
 	.match = ocp_device_match,
-	.probe = ocp_driver_probe,
-	.remove = ocp_driver_remove,
+	.probe = ocp_device_probe,
+	.remove = ocp_device_remove,
 	.suspend = ocp_device_suspend,
 	.resume = ocp_device_resume,
 };
diff --git a/arch/ppc/syslib/ppc83xx_setup.c b/arch/ppc/syslib/ppc83xx_setup.c
index 1b5fe9e398d4..7bada82527a8 100644
--- a/arch/ppc/syslib/ppc83xx_setup.c
+++ b/arch/ppc/syslib/ppc83xx_setup.c
@@ -108,7 +108,7 @@ mpc83xx_early_serial_map(void)
 
 #if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB)
 	memset(&serial_req, 0, sizeof (serial_req));
-	serial_req.iotype = SERIAL_IO_MEM;
+	serial_req.iotype = UPIO_MEM;
 	serial_req.mapbase = pdata[0].mapbase;
 	serial_req.membase = pdata[0].membase;
 	serial_req.regshift = 0;
diff --git a/arch/ppc/syslib/ppc85xx_setup.c b/arch/ppc/syslib/ppc85xx_setup.c
index 1a47ff4b831d..e4dda43fdaa7 100644
--- a/arch/ppc/syslib/ppc85xx_setup.c
+++ b/arch/ppc/syslib/ppc85xx_setup.c
@@ -90,7 +90,7 @@ mpc85xx_early_serial_map(void)
 
 #if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB)
 	memset(&serial_req, 0, sizeof (serial_req));
-	serial_req.iotype = SERIAL_IO_MEM;
+	serial_req.iotype = UPIO_MEM;
 	serial_req.mapbase = pdata[0].mapbase;
 	serial_req.membase = pdata[0].membase;
 	serial_req.regshift = 0;
diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c
index bf9a7a361b34..cc20f0e3a7d3 100644
--- a/arch/s390/kernel/compat_linux.c
+++ b/arch/s390/kernel/compat_linux.c
@@ -100,12 +100,12 @@
 #define SET_STAT_UID(stat, uid)		(stat).st_uid = high2lowuid(uid)
 #define SET_STAT_GID(stat, gid)		(stat).st_gid = high2lowgid(gid)
 
-asmlinkage long sys32_chown16(const char * filename, u16 user, u16 group)
+asmlinkage long sys32_chown16(const char __user * filename, u16 user, u16 group)
 {
 	return sys_chown(filename, low2highuid(user), low2highgid(group));
 }
 
-asmlinkage long sys32_lchown16(const char * filename, u16 user, u16 group)
+asmlinkage long sys32_lchown16(const char __user * filename, u16 user, u16 group)
 {
 	return sys_lchown(filename, low2highuid(user), low2highgid(group));
 }
@@ -141,7 +141,7 @@ asmlinkage long sys32_setresuid16(u16 ruid, u16 euid, u16 suid)
 		low2highuid(suid));
 }
 
-asmlinkage long sys32_getresuid16(u16 *ruid, u16 *euid, u16 *suid)
+asmlinkage long sys32_getresuid16(u16 __user *ruid, u16 __user *euid, u16 __user *suid)
 {
 	int retval;
 
@@ -158,7 +158,7 @@ asmlinkage long sys32_setresgid16(u16 rgid, u16 egid, u16 sgid)
 		low2highgid(sgid));
 }
 
-asmlinkage long sys32_getresgid16(u16 *rgid, u16 *egid, u16 *sgid)
+asmlinkage long sys32_getresgid16(u16 __user *rgid, u16 __user *egid, u16 __user *sgid)
 {
 	int retval;
 
@@ -179,7 +179,7 @@ asmlinkage long sys32_setfsgid16(u16 gid)
 	return sys_setfsgid((gid_t)gid);
 }
 
-static int groups16_to_user(u16 *grouplist, struct group_info *group_info)
+static int groups16_to_user(u16 __user *grouplist, struct group_info *group_info)
 {
 	int i;
 	u16 group;
@@ -193,7 +193,7 @@ static int groups16_to_user(u16 *grouplist, struct group_info *group_info)
 	return 0;
 }
 
-static int groups16_from_user(struct group_info *group_info, u16 *grouplist)
+static int groups16_from_user(struct group_info *group_info, u16 __user *grouplist)
 {
 	int i;
 	u16 group;
@@ -207,7 +207,7 @@ static int groups16_from_user(struct group_info *group_info, u16 *grouplist)
 	return 0;
 }
 
-asmlinkage long sys32_getgroups16(int gidsetsize, u16 *grouplist)
+asmlinkage long sys32_getgroups16(int gidsetsize, u16 __user *grouplist)
 {
 	int i;
 
@@ -231,7 +231,7 @@ out:
 	return i;
 }
 
-asmlinkage long sys32_setgroups16(int gidsetsize, u16 *grouplist)
+asmlinkage long sys32_setgroups16(int gidsetsize, u16 __user *grouplist)
 {
 	struct group_info *group_info;
 	int retval;
@@ -278,14 +278,14 @@ asmlinkage long sys32_getegid16(void)
 
 /* 32-bit timeval and related flotsam.  */
 
-static inline long get_tv32(struct timeval *o, struct compat_timeval *i)
+static inline long get_tv32(struct timeval *o, struct compat_timeval __user *i)
 {
 	return (!access_ok(VERIFY_READ, o, sizeof(*o)) ||
 		(__get_user(o->tv_sec, &i->tv_sec) ||
 		 __get_user(o->tv_usec, &i->tv_usec)));
 }
 
-static inline long put_tv32(struct compat_timeval *o, struct timeval *i)
+static inline long put_tv32(struct compat_timeval __user *o, struct timeval *i)
 {
 	return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
 		(__put_user(i->tv_sec, &o->tv_sec) ||
@@ -341,7 +341,7 @@ asmlinkage long sys32_ipc(u32 call, int first, int second, int third, u32 ptr)
 	return -ENOSYS;
 }
 
-asmlinkage long sys32_truncate64(const char * path, unsigned long high, unsigned long low)
+asmlinkage long sys32_truncate64(const char __user * path, unsigned long high, unsigned long low)
 {
 	if ((int)high < 0)
 		return -EINVAL;
@@ -357,7 +357,7 @@ asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long high, unsigned
 		return sys_ftruncate(fd, (high << 32) | low);
 }
 
-int cp_compat_stat(struct kstat *stat, struct compat_stat *statbuf)
+int cp_compat_stat(struct kstat *stat, struct compat_stat __user *statbuf)
 {
 	int err;
 
@@ -591,7 +591,7 @@ sys32_delete_module(const char __user *name_user, unsigned int flags)
 
 extern struct timezone sys_tz;
 
-asmlinkage long sys32_gettimeofday(struct compat_timeval *tv, struct timezone *tz)
+asmlinkage long sys32_gettimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
 {
 	if (tv) {
 		struct timeval ktv;
@@ -606,7 +606,7 @@ asmlinkage long sys32_gettimeofday(struct compat_timeval *tv, struct timezone *t
 	return 0;
 }
 
-static inline long get_ts32(struct timespec *o, struct compat_timeval *i)
+static inline long get_ts32(struct timespec *o, struct compat_timeval __user *i)
 {
 	long usec;
 
@@ -620,7 +620,7 @@ static inline long get_ts32(struct timespec *o, struct compat_timeval *i)
 	return 0;
 }
 
-asmlinkage long sys32_settimeofday(struct compat_timeval *tv, struct timezone *tz)
+asmlinkage long sys32_settimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
 {
 	struct timespec kts;
 	struct timezone ktz;
@@ -645,7 +645,7 @@ asmlinkage long sys32_pause(void)
 	return -ERESTARTNOHAND;
 }
 
-asmlinkage long sys32_pread64(unsigned int fd, char *ubuf,
+asmlinkage long sys32_pread64(unsigned int fd, char __user *ubuf,
 				size_t count, u32 poshi, u32 poslo)
 {
 	if ((compat_ssize_t) count < 0)
@@ -653,7 +653,7 @@ asmlinkage long sys32_pread64(unsigned int fd, char *ubuf,
 	return sys_pread64(fd, ubuf, count, ((loff_t)AA(poshi) << 32) | AA(poslo));
 }
 
-asmlinkage long sys32_pwrite64(unsigned int fd, const char *ubuf,
+asmlinkage long sys32_pwrite64(unsigned int fd, const char __user *ubuf,
 				size_t count, u32 poshi, u32 poslo)
 {
 	if ((compat_ssize_t) count < 0)
@@ -666,7 +666,7 @@ asmlinkage compat_ssize_t sys32_readahead(int fd, u32 offhi, u32 offlo, s32 coun
 	return sys_readahead(fd, ((loff_t)AA(offhi) << 32) | AA(offlo), count);
 }
 
-asmlinkage long sys32_sendfile(int out_fd, int in_fd, compat_off_t *offset, size_t count)
+asmlinkage long sys32_sendfile(int out_fd, int in_fd, compat_off_t __user *offset, size_t count)
 {
 	mm_segment_t old_fs = get_fs();
 	int ret;
@@ -686,7 +686,7 @@ asmlinkage long sys32_sendfile(int out_fd, int in_fd, compat_off_t *offset, size
 }
 
 asmlinkage long sys32_sendfile64(int out_fd, int in_fd,
-				compat_loff_t *offset, s32 count)
+				compat_loff_t __user *offset, s32 count)
 {
 	mm_segment_t old_fs = get_fs();
 	int ret;
@@ -722,7 +722,7 @@ struct timex32 {
 
 extern int do_adjtimex(struct timex *);
 
-asmlinkage long sys32_adjtimex(struct timex32 *utp)
+asmlinkage long sys32_adjtimex(struct timex32 __user *utp)
 {
 	struct timex txc;
 	int ret;
@@ -789,12 +789,13 @@ struct __sysctl_args32 {
 	u32 __unused[4];
 };
 
-asmlinkage long sys32_sysctl(struct __sysctl_args32 *args)
+asmlinkage long sys32_sysctl(struct __sysctl_args32 __user *args)
 {
 	struct __sysctl_args32 tmp;
 	int error;
-	size_t oldlen, *oldlenp = NULL;
-	unsigned long addr = (((long)&args->__unused[0]) + 7) & ~7;
+	size_t oldlen;
+	size_t __user *oldlenp = NULL;
+	unsigned long addr = (((unsigned long)&args->__unused[0]) + 7) & ~7;
 
 	if (copy_from_user(&tmp, args, sizeof(tmp)))
 		return -EFAULT;
@@ -806,20 +807,20 @@ asmlinkage long sys32_sysctl(struct __sysctl_args32 *args)
 		   basically copy the whole sysctl.c here, and
 		   glibc's __sysctl uses rw memory for the structure
 		   anyway.  */
-		if (get_user(oldlen, (u32 *)A(tmp.oldlenp)) ||
-		    put_user(oldlen, (size_t *)addr))
+		if (get_user(oldlen, (u32 __user *)compat_ptr(tmp.oldlenp)) ||
+		    put_user(oldlen, (size_t __user *)addr))
 			return -EFAULT;
-		oldlenp = (size_t *)addr;
+		oldlenp = (size_t __user *)addr;
 	}
 
 	lock_kernel();
-	error = do_sysctl((int *)A(tmp.name), tmp.nlen, (void *)A(tmp.oldval),
-			  oldlenp, (void *)A(tmp.newval), tmp.newlen);
+	error = do_sysctl(compat_ptr(tmp.name), tmp.nlen, compat_ptr(tmp.oldval),
+			  oldlenp, compat_ptr(tmp.newval), tmp.newlen);
 	unlock_kernel();
 	if (oldlenp) {
 		if (!error) {
-			if (get_user(oldlen, (size_t *)addr) ||
-			    put_user(oldlen, (u32 *)A(tmp.oldlenp)))
+			if (get_user(oldlen, (size_t __user *)addr) ||
+			    put_user(oldlen, (u32 __user *)compat_ptr(tmp.oldlenp)))
 				error = -EFAULT;
 		}
 		copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused));
@@ -853,7 +854,7 @@ struct stat64_emu31 {
 	unsigned long   st_ino;
 };	
 
-static int cp_stat64(struct stat64_emu31 *ubuf, struct kstat *stat)
+static int cp_stat64(struct stat64_emu31 __user *ubuf, struct kstat *stat)
 {
 	struct stat64_emu31 tmp;
 
@@ -877,7 +878,7 @@ static int cp_stat64(struct stat64_emu31 *ubuf, struct kstat *stat)
 	return copy_to_user(ubuf,&tmp,sizeof(tmp)) ? -EFAULT : 0; 
 }
 
-asmlinkage long sys32_stat64(char * filename, struct stat64_emu31 * statbuf)
+asmlinkage long sys32_stat64(char __user * filename, struct stat64_emu31 __user * statbuf)
 {
 	struct kstat stat;
 	int ret = vfs_stat(filename, &stat);
@@ -886,7 +887,7 @@ asmlinkage long sys32_stat64(char * filename, struct stat64_emu31 * statbuf)
 	return ret;
 }
 
-asmlinkage long sys32_lstat64(char * filename, struct stat64_emu31 * statbuf)
+asmlinkage long sys32_lstat64(char __user * filename, struct stat64_emu31 __user * statbuf)
 {
 	struct kstat stat;
 	int ret = vfs_lstat(filename, &stat);
@@ -895,7 +896,7 @@ asmlinkage long sys32_lstat64(char * filename, struct stat64_emu31 * statbuf)
 	return ret;
 }
 
-asmlinkage long sys32_fstat64(unsigned long fd, struct stat64_emu31 * statbuf)
+asmlinkage long sys32_fstat64(unsigned long fd, struct stat64_emu31 __user * statbuf)
 {
 	struct kstat stat;
 	int ret = vfs_fstat(fd, &stat);
@@ -952,7 +953,7 @@ out:
 
 
 asmlinkage unsigned long
-old32_mmap(struct mmap_arg_struct_emu31 *arg)
+old32_mmap(struct mmap_arg_struct_emu31 __user *arg)
 {
 	struct mmap_arg_struct_emu31 a;
 	int error = -EFAULT;
@@ -970,7 +971,7 @@ out:
 }
 
 asmlinkage long 
-sys32_mmap2(struct mmap_arg_struct_emu31 *arg)
+sys32_mmap2(struct mmap_arg_struct_emu31 __user *arg)
 {
 	struct mmap_arg_struct_emu31 a;
 	int error = -EFAULT;
@@ -982,7 +983,7 @@ out:
 	return error;
 }
 
-asmlinkage long sys32_read(unsigned int fd, char * buf, size_t count)
+asmlinkage long sys32_read(unsigned int fd, char __user * buf, size_t count)
 {
 	if ((compat_ssize_t) count < 0)
 		return -EINVAL; 
@@ -990,7 +991,7 @@ asmlinkage long sys32_read(unsigned int fd, char * buf, size_t count)
 	return sys_read(fd, buf, count);
 }
 
-asmlinkage long sys32_write(unsigned int fd, char * buf, size_t count)
+asmlinkage long sys32_write(unsigned int fd, char __user * buf, size_t count)
 {
 	if ((compat_ssize_t) count < 0)
 		return -EINVAL; 
@@ -1002,12 +1003,12 @@ asmlinkage long sys32_clone(struct pt_regs regs)
 {
         unsigned long clone_flags;
         unsigned long newsp;
-	int *parent_tidptr, *child_tidptr;
+	int __user *parent_tidptr, *child_tidptr;
 
         clone_flags = regs.gprs[3] & 0xffffffffUL;
         newsp = regs.orig_gpr2 & 0x7fffffffUL;
-	parent_tidptr = (int *) (regs.gprs[4] & 0x7fffffffUL);
-	child_tidptr = (int *) (regs.gprs[5] & 0x7fffffffUL);
+	parent_tidptr = compat_ptr(regs.gprs[4]);
+	child_tidptr = compat_ptr(regs.gprs[5]);
         if (!newsp)
                 newsp = regs.gprs[15];
         return do_fork(clone_flags, newsp, &regs, 0,
diff --git a/arch/s390/kernel/sys_s390.c b/arch/s390/kernel/sys_s390.c
index 6a63553493c5..e351780bb660 100644
--- a/arch/s390/kernel/sys_s390.c
+++ b/arch/s390/kernel/sys_s390.c
@@ -122,8 +122,8 @@ out:
 #ifndef CONFIG_64BIT
 struct sel_arg_struct {
 	unsigned long n;
-	fd_set *inp, *outp, *exp;
-	struct timeval *tvp;
+	fd_set __user *inp, *outp, *exp;
+	struct timeval __user *tvp;
 };
 
 asmlinkage long old_select(struct sel_arg_struct __user *arg)
diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c
index 5d21e9e6e7b4..a46793beeddd 100644
--- a/arch/s390/kernel/traps.c
+++ b/arch/s390/kernel/traps.c
@@ -486,7 +486,7 @@ asmlinkage void illegal_op(struct pt_regs * regs, long interruption_code)
 		info.si_signo = signal;
 		info.si_errno = 0;
 		info.si_code = ILL_ILLOPC;
-		info.si_addr = (void *) location;
+		info.si_addr = (void __user *) location;
 		do_trap(interruption_code, signal,
 			"illegal operation", regs, &info);
 	}
diff --git a/arch/s390/mm/cmm.c b/arch/s390/mm/cmm.c
index 2d5cb1385753..b075ab499d05 100644
--- a/arch/s390/mm/cmm.c
+++ b/arch/s390/mm/cmm.c
@@ -42,8 +42,8 @@ static volatile long cmm_timed_pages_target = 0;
 static long cmm_timeout_pages = 0;
 static long cmm_timeout_seconds = 0;
 
-static struct cmm_page_array *cmm_page_list = 0;
-static struct cmm_page_array *cmm_timed_page_list = 0;
+static struct cmm_page_array *cmm_page_list = NULL;
+static struct cmm_page_array *cmm_timed_page_list = NULL;
 
 static unsigned long cmm_thread_active = 0;
 static struct work_struct cmm_thread_starter;
@@ -259,7 +259,7 @@ static struct ctl_table cmm_table[];
 
 static int
 cmm_pages_handler(ctl_table *ctl, int write, struct file *filp,
-		  void *buffer, size_t *lenp, loff_t *ppos)
+		  void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	char buf[16], *p;
 	long pages;
@@ -300,7 +300,7 @@ cmm_pages_handler(ctl_table *ctl, int write, struct file *filp,
 
 static int
 cmm_timeout_handler(ctl_table *ctl, int write, struct file *filp,
-		    void *buffer, size_t *lenp, loff_t *ppos)
+		    void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	char buf[64], *p;
 	long pages, seconds;
@@ -419,7 +419,7 @@ cmm_init (void)
 #ifdef CONFIG_CMM_IUCV
 	smsg_register_callback(SMSG_PREFIX, cmm_smsg_target);
 #endif
-	INIT_WORK(&cmm_thread_starter, (void *) cmm_start_thread, 0);
+	INIT_WORK(&cmm_thread_starter, (void *) cmm_start_thread, NULL);
 	init_waitqueue_head(&cmm_thread_wait);
 	init_timer(&cmm_timer);
 	return 0;
diff --git a/arch/sh/boards/renesas/rts7751r2d/io.c b/arch/sh/boards/renesas/rts7751r2d/io.c
index c46f9154cfd5..123abbbc91e0 100644
--- a/arch/sh/boards/renesas/rts7751r2d/io.c
+++ b/arch/sh/boards/renesas/rts7751r2d/io.c
@@ -216,24 +216,26 @@ void rts7751r2d_insb(unsigned long port, void *addr, unsigned long count)
 {
 	volatile __u8 *bp;
 	volatile __u16 *p;
+	unsigned char *s = addr;
 
 	if (CHECK_AX88796L_PORT(port)) {
 		p = (volatile unsigned short *)port88796l(port, 0);
-		while (count--) *((unsigned char *) addr)++ = *p & 0xff;
+		while (count--) *s++ = *p & 0xff;
 	} else if (PXSEG(port))
-		while (count--) *((unsigned char *) addr)++ = *(volatile unsigned char *)port;
+		while (count--) *s++ = *(volatile unsigned char *)port;
 	else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) {
 		bp = (__u8 *)PCI_IOMAP(port);
-		while (count--) *((volatile unsigned char *) addr)++ = *bp;
+		while (count--) *s++ = *bp;
 	} else {
 		p = (volatile unsigned short *)port2adr(port);
-		while (count--) *((unsigned char *) addr)++ = *p & 0xff;
+		while (count--) *s++ = *p & 0xff;
 	}
 }
 
 void rts7751r2d_insw(unsigned long port, void *addr, unsigned long count)
 {
 	volatile __u16 *p;
+	__u16 *s = addr;
 
 	if (CHECK_AX88796L_PORT(port))
 		p = (volatile unsigned short *)port88796l(port, 1);
@@ -243,7 +245,7 @@ void rts7751r2d_insw(unsigned long port, void *addr, unsigned long count)
 		p = (volatile unsigned short *)PCI_IOMAP(port);
 	else
 		p = (volatile unsigned short *)port2adr(port);
-	while (count--) *((__u16 *) addr)++ = *p;
+	while (count--) *s++ = *p;
 }
 
 void rts7751r2d_insl(unsigned long port, void *addr, unsigned long count)
@@ -252,8 +254,9 @@ void rts7751r2d_insl(unsigned long port, void *addr, unsigned long count)
 		maybebadio(insl, port);
 	else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) {
 		volatile __u32 *p = (__u32 *)PCI_IOMAP(port);
+		__u32 *s = addr;
 
-		while (count--) *((__u32 *) addr)++ = *p;
+		while (count--) *s++ = *p;
 	} else
 		maybebadio(insl, port);
 }
@@ -262,24 +265,26 @@ void rts7751r2d_outsb(unsigned long port, const void *addr, unsigned long count)
 {
 	volatile __u8 *bp;
 	volatile __u16 *p;
+	const __u8 *s = addr;
 
 	if (CHECK_AX88796L_PORT(port)) {
 		p = (volatile unsigned short *)port88796l(port, 0);
-		while (count--) *p = *((unsigned char *) addr)++;
+		while (count--) *p = *s++;
 	} else if (PXSEG(port))
-		while (count--) *(volatile unsigned char *)port = *((unsigned char *) addr)++;
+		while (count--) *(volatile unsigned char *)port = *s++;
 	else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) {
 		bp = (__u8 *)PCI_IOMAP(port);
-		while (count--) *bp = *((volatile unsigned char *) addr)++;
+		while (count--) *bp = *s++;
 	} else {
 		p = (volatile unsigned short *)port2adr(port);
-		while (count--) *p = *((unsigned char *) addr)++;
+		while (count--) *p = *s++;
 	}
 }
 
 void rts7751r2d_outsw(unsigned long port, const void *addr, unsigned long count)
 {
 	volatile __u16 *p;
+	const __u16 *s = addr;
 
 	if (CHECK_AX88796L_PORT(port))
 		p = (volatile unsigned short *)port88796l(port, 1);
@@ -289,7 +294,7 @@ void rts7751r2d_outsw(unsigned long port, const void *addr, unsigned long count)
 		p = (volatile unsigned short *)PCI_IOMAP(port);
 	else
 		p = (volatile unsigned short *)port2adr(port);
-	while (count--) *p = *((__u16 *) addr)++;
+	while (count--) *p = *s++;
 }
 
 void rts7751r2d_outsl(unsigned long port, const void *addr, unsigned long count)
@@ -298,8 +303,9 @@ void rts7751r2d_outsl(unsigned long port, const void *addr, unsigned long count)
 		maybebadio(outsl, port);
 	else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) {
 		volatile __u32 *p = (__u32 *)PCI_IOMAP(port);
+		const __u32 *s = addr;
 
-		while (count--) *p = *((__u32 *) addr)++;
+		while (count--) *p = *s++;
 	} else
 		maybebadio(outsl, port);
 }
diff --git a/arch/sh64/kernel/sh_ksyms.c b/arch/sh64/kernel/sh_ksyms.c
index 472b450e61be..de29c45f23a7 100644
--- a/arch/sh64/kernel/sh_ksyms.c
+++ b/arch/sh64/kernel/sh_ksyms.c
@@ -31,14 +31,6 @@
 
 extern int dump_fpu(struct pt_regs *, elf_fpregset_t *);
 
-#if 0
-/* Not yet - there's no declaration of drive_info anywhere. */
-#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_HD) || defined(CONFIG_BLK_DEV_IDE_MODULE) || defined(CONFIG_BLK_DEV_HD_MODULE)
-extern struct drive_info_struct drive_info;
-EXPORT_SYMBOL(drive_info);
-#endif
-#endif
-
 /* platform dependent support */
 EXPORT_SYMBOL(dump_fpu);
 EXPORT_SYMBOL(iounmap);
diff --git a/arch/sparc/kernel/entry.S b/arch/sparc/kernel/entry.S
index 267ec8f6fb58..887f6a160c58 100644
--- a/arch/sparc/kernel/entry.S
+++ b/arch/sparc/kernel/entry.S
@@ -38,7 +38,7 @@
 
 #define curptr      g6
 
-#define NR_SYSCALLS 299      /* Each OS is different... */
+#define NR_SYSCALLS 300      /* Each OS is different... */
 
 /* These are just handy. */
 #define _SV	save	%sp, -STACKFRAME_SZ, %sp
diff --git a/arch/sparc/kernel/process.c b/arch/sparc/kernel/process.c
index fbb05a452e51..118cac84a0f5 100644
--- a/arch/sparc/kernel/process.c
+++ b/arch/sparc/kernel/process.c
@@ -54,7 +54,7 @@ void (*pm_idle)(void);
  * This is done via auxio, but could be used as a fallback
  * handler when auxio is not present-- unused for now...
  */
-void (*pm_power_off)(void);
+void (*pm_power_off)(void) = machine_power_off;
 
 /*
  * sysctl - toggle power-off restriction for serial console 
diff --git a/arch/sparc/kernel/systbls.S b/arch/sparc/kernel/systbls.S
index 6877ae4cd1d9..c0314705d73a 100644
--- a/arch/sparc/kernel/systbls.S
+++ b/arch/sparc/kernel/systbls.S
@@ -78,7 +78,7 @@ sys_call_table:
 /*280*/	.long sys_ni_syscall, sys_add_key, sys_request_key, sys_keyctl, sys_openat
 /*285*/	.long sys_mkdirat, sys_mknodat, sys_fchownat, sys_futimesat, sys_newfstatat
 /*290*/	.long sys_unlinkat, sys_renameat, sys_linkat, sys_symlinkat, sys_readlinkat
-/*295*/	.long sys_fchmodat, sys_faccessat, sys_pselect6, sys_ppoll
+/*295*/	.long sys_fchmodat, sys_faccessat, sys_pselect6, sys_ppoll, sys_unshare
 
 #ifdef CONFIG_SUNOS_EMUL
 	/* Now the SunOS syscall table. */
@@ -190,5 +190,6 @@ sunos_sys_table:
 /*290*/	.long sunos_nosys, sunos_nosys, sunos_nosys
 	.long sunos_nosys, sunos_nosys, sunos_nosys
 	.long sunos_nosys, sunos_nosys, sunos_nosys
+	.long sunos_nosys
 
 #endif
diff --git a/arch/sparc64/defconfig b/arch/sparc64/defconfig
index bc56a7d88308..069d49777b2a 100644
--- a/arch/sparc64/defconfig
+++ b/arch/sparc64/defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
 # Linux kernel version: 2.6.16-rc2
-# Sat Feb  4 02:31:38 2006
+# Tue Feb  7 17:47:18 2006
 #
 CONFIG_SPARC=y
 CONFIG_SPARC64=y
@@ -30,7 +30,7 @@ CONFIG_INIT_ENV_ARG_LIMIT=32
 # General setup
 #
 CONFIG_LOCALVERSION=""
-CONFIG_LOCALVERSION_AUTO=y
+# CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SWAP=y
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
@@ -766,6 +766,7 @@ CONFIG_HWMON=y
 # CONFIG_SENSORS_ASB100 is not set
 # CONFIG_SENSORS_ATXP1 is not set
 # CONFIG_SENSORS_DS1621 is not set
+# CONFIG_SENSORS_F71805F is not set
 # CONFIG_SENSORS_FSCHER is not set
 # CONFIG_SENSORS_FSCPOS is not set
 # CONFIG_SENSORS_GL518SM is not set
diff --git a/arch/sparc64/kernel/entry.S b/arch/sparc64/kernel/entry.S
index 12911e7463f2..a73553ae7e53 100644
--- a/arch/sparc64/kernel/entry.S
+++ b/arch/sparc64/kernel/entry.S
@@ -25,7 +25,7 @@
 
 #define curptr      g6
 
-#define NR_SYSCALLS 299      /* Each OS is different... */
+#define NR_SYSCALLS 300      /* Each OS is different... */
 
 	.text
 	.align		32
diff --git a/arch/sparc64/kernel/systbls.S b/arch/sparc64/kernel/systbls.S
index 2881faf36635..5928b3c33e27 100644
--- a/arch/sparc64/kernel/systbls.S
+++ b/arch/sparc64/kernel/systbls.S
@@ -79,7 +79,7 @@ sys_call_table32:
 /*280*/	.word sys_ni_syscall, sys_add_key, sys_request_key, sys_keyctl, compat_sys_openat
 	.word sys_mkdirat, sys_mknodat, sys_fchownat, compat_sys_futimesat, compat_sys_newfstatat
 /*285*/	.word sys_unlinkat, sys_renameat, sys_linkat, sys_symlinkat, sys_readlinkat
-	.word sys_fchmodat, sys_faccessat, compat_sys_pselect6, compat_sys_ppoll
+	.word sys_fchmodat, sys_faccessat, compat_sys_pselect6, compat_sys_ppoll, sys_unshare
 
 #endif /* CONFIG_COMPAT */
 
@@ -148,7 +148,7 @@ sys_call_table:
 /*280*/	.word sys_nis_syscall, sys_add_key, sys_request_key, sys_keyctl, sys_openat
 	.word sys_mkdirat, sys_mknodat, sys_fchownat, sys_futimesat, compat_sys_newfstatat
 /*285*/	.word sys_unlinkat, sys_renameat, sys_linkat, sys_symlinkat, sys_readlinkat
-	.word sys_fchmodat, sys_faccessat, sys_pselect6, sys_ppoll
+	.word sys_fchmodat, sys_faccessat, sys_pselect6, sys_ppoll, sys_unshare
 
 #if defined(CONFIG_SUNOS_EMUL) || defined(CONFIG_SOLARIS_EMUL) || \
     defined(CONFIG_SOLARIS_EMUL_MODULE)
@@ -261,4 +261,5 @@ sunos_sys_table:
 /*290*/	.word sunos_nosys, sunos_nosys, sunos_nosys
 	.word sunos_nosys, sunos_nosys, sunos_nosys
 	.word sunos_nosys, sunos_nosys, sunos_nosys
+	.word sunos_nosys
 #endif
diff --git a/arch/sparc64/solaris/systbl.S b/arch/sparc64/solaris/systbl.S
index d25667eeae10..7043ca18caf9 100644
--- a/arch/sparc64/solaris/systbl.S
+++ b/arch/sparc64/solaris/systbl.S
@@ -283,32 +283,3 @@ solaris_sys_table:
 	.word solaris_unimplemented	/* 			253	*/
 	.word solaris_unimplemented	/* 			254	*/
 	.word solaris_unimplemented	/* 			255	*/
-	.word solaris_unimplemented	/* 			256	*/
-	.word solaris_unimplemented	/* 			257	*/
-	.word solaris_unimplemented	/* 			258	*/
-	.word solaris_unimplemented	/* 			259	*/
-	.word solaris_unimplemented	/* 			260	*/
-	.word solaris_unimplemented	/* 			261	*/
-	.word solaris_unimplemented	/* 			262	*/
-	.word solaris_unimplemented	/* 			263	*/
-	.word solaris_unimplemented	/* 			264	*/
-	.word solaris_unimplemented	/* 			265	*/
-	.word solaris_unimplemented	/* 			266	*/
-	.word solaris_unimplemented	/* 			267	*/
-	.word solaris_unimplemented	/* 			268	*/
-	.word solaris_unimplemented	/* 			269	*/
-	.word solaris_unimplemented	/* 			270	*/
-	.word solaris_unimplemented	/* 			271	*/
-	.word solaris_unimplemented	/* 			272	*/
-	.word solaris_unimplemented	/* 			273	*/
-	.word solaris_unimplemented	/* 			274	*/
-	.word solaris_unimplemented	/* 			275	*/
-	.word solaris_unimplemented	/* 			276	*/
-	.word solaris_unimplemented	/* 			277	*/
-	.word solaris_unimplemented	/* 			278	*/
-	.word solaris_unimplemented	/* 			279	*/
-	.word solaris_unimplemented	/* 			280	*/
-	.word solaris_unimplemented	/* 			281	*/
-	.word solaris_unimplemented	/* 			282	*/
-	.word solaris_unimplemented	/* 			283	*/
-
diff --git a/arch/um/drivers/chan_user.c b/arch/um/drivers/chan_user.c
index 5d50d4a44abf..2f880cb167a5 100644
--- a/arch/um/drivers/chan_user.c
+++ b/arch/um/drivers/chan_user.c
@@ -9,6 +9,7 @@
 #include <termios.h>
 #include <string.h>
 #include <signal.h>
+#include <sched.h>
 #include <sys/stat.h>
 #include <sys/ioctl.h>
 #include <sys/socket.h>
@@ -73,7 +74,6 @@ static void winch_handler(int sig)
 struct winch_data {
 	int pty_fd;
 	int pipe_fd;
-	int close_me;
 };
 
 static int winch_thread(void *arg)
@@ -84,7 +84,6 @@ static int winch_thread(void *arg)
 	int count, err;
 	char c = 1;
 
-	os_close_file(data->close_me);
 	pty_fd = data->pty_fd;
 	pipe_fd = data->pipe_fd;
 	count = os_write_file(pipe_fd, &c, sizeof(c));
@@ -153,15 +152,16 @@ static int winch_tramp(int fd, struct tty_struct *tty, int *fd_out)
 	}
 
 	data = ((struct winch_data) { .pty_fd 		= fd,
-				      .pipe_fd 		= fds[1],
-				      .close_me 	= fds[0] } );
-	err = run_helper_thread(winch_thread, &data, 0, &stack, 0);
+				      .pipe_fd 		= fds[1] } );
+	/* CLONE_FILES so this thread doesn't hold open files which are open
+	 * now, but later closed.  This is a problem with /dev/net/tun.
+	 */
+	err = run_helper_thread(winch_thread, &data, CLONE_FILES, &stack, 0);
 	if(err < 0){
 		printk("fork of winch_thread failed - errno = %d\n", errno);
 		goto out_close;
 	}
 
-	os_close_file(fds[1]);
 	*fd_out = fds[0];
 	n = os_read_file(fds[0], &c, sizeof(c));
 	if(n != sizeof(c)){
@@ -169,13 +169,12 @@ static int winch_tramp(int fd, struct tty_struct *tty, int *fd_out)
 		printk("read failed, err = %d\n", -n);
 		printk("fd %d will not support SIGWINCH\n", fd);
                 err = -EINVAL;
-		goto out_close1;
+		goto out_close;
 	}
 	return err ;
 
  out_close:
 	os_close_file(fds[1]);
- out_close1:
 	os_close_file(fds[0]);
  out:
 	return err;
diff --git a/arch/um/drivers/net_kern.c b/arch/um/drivers/net_kern.c
index 8ebb2241ad42..8c7279bb353b 100644
--- a/arch/um/drivers/net_kern.c
+++ b/arch/um/drivers/net_kern.c
@@ -131,9 +131,8 @@ static int uml_net_open(struct net_device *dev)
 			     SA_INTERRUPT | SA_SHIRQ, dev->name, dev);
 	if(err != 0){
 		printk(KERN_ERR "uml_net_open: failed to get irq(%d)\n", err);
-		if(lp->close != NULL) (*lp->close)(lp->fd, &lp->user);
-		lp->fd = -1;
 		err = -ENETUNREACH;
+		goto out_close;
 	}
 
 	lp->tl.data = (unsigned long) &lp->user;
@@ -145,9 +144,19 @@ static int uml_net_open(struct net_device *dev)
 	 */
 	while((err = uml_net_rx(dev)) > 0) ;
 
- out:
 	spin_unlock(&lp->lock);
-	return(err);
+
+	spin_lock(&opened_lock);
+	list_add(&lp->list, &opened);
+	spin_unlock(&opened_lock);
+
+	return 0;
+out_close:
+	if(lp->close != NULL) (*lp->close)(lp->fd, &lp->user);
+	lp->fd = -1;
+out:
+	spin_unlock(&lp->lock);
+	return err;
 }
 
 static int uml_net_close(struct net_device *dev)
@@ -161,9 +170,13 @@ static int uml_net_close(struct net_device *dev)
 	if(lp->close != NULL)
 		(*lp->close)(lp->fd, &lp->user);
 	lp->fd = -1;
-	list_del(&lp->list);
 
 	spin_unlock(&lp->lock);
+
+	spin_lock(&opened_lock);
+	list_del(&lp->list);
+	spin_unlock(&opened_lock);
+
 	return 0;
 }
 
@@ -410,11 +423,7 @@ static int eth_configure(int n, void *init, char *mac,
 	if (device->have_mac)
 		set_ether_mac(dev, device->mac);
 
-	spin_lock(&opened_lock);
-	list_add(&lp->list, &opened);
-	spin_unlock(&opened_lock);
-
-	return(0);
+	return 0;
 }
 
 static struct uml_net *find_device(int n)
diff --git a/arch/um/include/registers.h b/arch/um/include/registers.h
index 4892e5fcef07..83b688ca198f 100644
--- a/arch/um/include/registers.h
+++ b/arch/um/include/registers.h
@@ -14,7 +14,7 @@ extern int restore_fp_registers(int pid, unsigned long *fp_regs);
 extern void save_registers(int pid, union uml_pt_regs *regs);
 extern void restore_registers(int pid, union uml_pt_regs *regs);
 extern void init_registers(int pid);
-extern void get_safe_registers(unsigned long * regs);
+extern void get_safe_registers(unsigned long * regs, unsigned long * fp_regs);
 extern void get_thread_regs(union uml_pt_regs *uml_regs, void *buffer);
 
 #endif
diff --git a/arch/um/kernel/skas/process.c b/arch/um/kernel/skas/process.c
deleted file mode 100644
index eea1c9c4bb0f..000000000000
--- a/arch/um/kernel/skas/process.c
+++ /dev/null
@@ -1,569 +0,0 @@
-/* 
- * Copyright (C) 2002- 2004 Jeff Dike (jdike@addtoit.com)
- * Licensed under the GPL
- */
-
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <errno.h>
-#include <signal.h>
-#include <setjmp.h>
-#include <sched.h>
-#include <sys/wait.h>
-#include <sys/mman.h>
-#include <sys/user.h>
-#include <sys/time.h>
-#include <asm/unistd.h>
-#include <asm/types.h>
-#include "user.h"
-#include "ptrace_user.h"
-#include "sysdep/ptrace.h"
-#include "user_util.h"
-#include "kern_util.h"
-#include "skas.h"
-#include "stub-data.h"
-#include "mm_id.h"
-#include "sysdep/sigcontext.h"
-#include "sysdep/stub.h"
-#include "os.h"
-#include "proc_mm.h"
-#include "skas_ptrace.h"
-#include "chan_user.h"
-#include "registers.h"
-#include "mem.h"
-#include "uml-config.h"
-#include "process.h"
-
-int is_skas_winch(int pid, int fd, void *data)
-{
-        if(pid != os_getpgrp())
-		return(0);
-
-	register_winch_irq(-1, fd, -1, data);
-	return(1);
-}
-
-void wait_stub_done(int pid, int sig, char * fname)
-{
-        int n, status, err;
-
-        do {
-                if ( sig != -1 ) {
-                        err = ptrace(PTRACE_CONT, pid, 0, sig);
-                        if(err)
-                                panic("%s : continue failed, errno = %d\n",
-                                      fname, errno);
-                }
-                sig = 0;
-
-                CATCH_EINTR(n = waitpid(pid, &status, WUNTRACED));
-        } while((n >= 0) && WIFSTOPPED(status) &&
-                ((WSTOPSIG(status) == SIGVTALRM) ||
-		 /* running UML inside a detached screen can cause
-		  * SIGWINCHes
-		  */
-		 (WSTOPSIG(status) == SIGWINCH)));
-
-        if((n < 0) || !WIFSTOPPED(status) ||
-           (WSTOPSIG(status) != SIGUSR1 && WSTOPSIG(status) != SIGTRAP)){
-		unsigned long regs[HOST_FRAME_SIZE];
-		if(ptrace(PTRACE_GETREGS, pid, 0, regs) < 0)
-			printk("Failed to get registers from stub, "
-			       "errno = %d\n", errno);
-		else {
-			int i;
-
-			printk("Stub registers -\n");
-			for(i = 0; i < HOST_FRAME_SIZE; i++)
-				printk("\t%d - %lx\n", i, regs[i]);
-		}
-                panic("%s : failed to wait for SIGUSR1/SIGTRAP, "
-                      "pid = %d, n = %d, errno = %d, status = 0x%x\n",
-                      fname, pid, n, errno, status);
-        }
-}
-
-void get_skas_faultinfo(int pid, struct faultinfo * fi)
-{
-        int err;
-
-        if(ptrace_faultinfo){
-                err = ptrace(PTRACE_FAULTINFO, pid, 0, fi);
-                if(err)
-                        panic("get_skas_faultinfo - PTRACE_FAULTINFO failed, "
-                              "errno = %d\n", errno);
-
-                /* Special handling for i386, which has different structs */
-                if (sizeof(struct ptrace_faultinfo) < sizeof(struct faultinfo))
-                        memset((char *)fi + sizeof(struct ptrace_faultinfo), 0,
-                               sizeof(struct faultinfo) -
-                               sizeof(struct ptrace_faultinfo));
-        }
-        else {
-                wait_stub_done(pid, SIGSEGV, "get_skas_faultinfo");
-
-                /* faultinfo is prepared by the stub-segv-handler at start of
-                 * the stub stack page. We just have to copy it.
-                 */
-                memcpy(fi, (void *)current_stub_stack(), sizeof(*fi));
-        }
-}
-
-static void handle_segv(int pid, union uml_pt_regs * regs)
-{
-        get_skas_faultinfo(pid, &regs->skas.faultinfo);
-        segv(regs->skas.faultinfo, 0, 1, NULL);
-}
-
-/*To use the same value of using_sysemu as the caller, ask it that value (in local_using_sysemu)*/
-static void handle_trap(int pid, union uml_pt_regs *regs, int local_using_sysemu)
-{
-	int err, status;
-
-	/* Mark this as a syscall */
-	UPT_SYSCALL_NR(regs) = PT_SYSCALL_NR(regs->skas.regs);
-
-	if (!local_using_sysemu)
-	{
-		err = ptrace(PTRACE_POKEUSR, pid, PT_SYSCALL_NR_OFFSET, __NR_getpid);
-		if(err < 0)
-			panic("handle_trap - nullifying syscall failed errno = %d\n",
-			      errno);
-
-		err = ptrace(PTRACE_SYSCALL, pid, 0, 0);
-		if(err < 0)
-			panic("handle_trap - continuing to end of syscall failed, "
-			      "errno = %d\n", errno);
-
-		CATCH_EINTR(err = waitpid(pid, &status, WUNTRACED));
-		if((err < 0) || !WIFSTOPPED(status) ||
-		   (WSTOPSIG(status) != SIGTRAP + 0x80))
-			panic("handle_trap - failed to wait at end of syscall, "
-			      "errno = %d, status = %d\n", errno, status);
-	}
-
-	handle_syscall(regs);
-}
-
-extern int __syscall_stub_start;
-int stub_code_fd = -1;
-__u64 stub_code_offset;
-
-static int userspace_tramp(void *stack)
-{
-	void *addr;
-
-	ptrace(PTRACE_TRACEME, 0, 0, 0);
-
-	init_new_thread_signals(1);
-	enable_timer();
-
-	if(!proc_mm){
-		/* This has a pte, but it can't be mapped in with the usual
-		 * tlb_flush mechanism because this is part of that mechanism
-		 */
-		addr = mmap64((void *) UML_CONFIG_STUB_CODE, page_size(),
-			      PROT_EXEC, MAP_FIXED | MAP_PRIVATE,
-			      stub_code_fd, stub_code_offset);
-		if(addr == MAP_FAILED){
-			printk("mapping stub code failed, errno = %d\n",
-			       errno);
-			exit(1);
-		}
-
-		if(stack != NULL){
-			int fd;
-			__u64 offset;
-
-			fd = phys_mapping(to_phys(stack), &offset);
-			addr = mmap((void *) UML_CONFIG_STUB_DATA, page_size(),
-				    PROT_READ | PROT_WRITE,
-				    MAP_FIXED | MAP_SHARED, fd, offset);
-			if(addr == MAP_FAILED){
-				printk("mapping stub stack failed, "
-				       "errno = %d\n", errno);
-				exit(1);
-			}
-		}
-	}
-	if(!ptrace_faultinfo){
-		unsigned long v = UML_CONFIG_STUB_CODE +
-				  (unsigned long) stub_segv_handler -
-				  (unsigned long) &__syscall_stub_start;
-
-		set_sigstack((void *) UML_CONFIG_STUB_DATA, page_size());
-		set_handler(SIGSEGV, (void *) v, SA_ONSTACK,
-			    SIGIO, SIGWINCH, SIGALRM, SIGVTALRM,
-			    SIGUSR1, -1);
-	}
-
-	os_stop_process(os_getpid());
-	return(0);
-}
-
-/* Each element set once, and only accessed by a single processor anyway */
-#undef NR_CPUS
-#define NR_CPUS 1
-int userspace_pid[NR_CPUS];
-
-int start_userspace(unsigned long stub_stack)
-{
-	void *stack;
-	unsigned long sp;
-	int pid, status, n, flags;
-
-	if ( stub_code_fd == -1 )
-		stub_code_fd = phys_mapping(to_phys(&__syscall_stub_start),
-					    &stub_code_offset);
-
-	stack = mmap(NULL, PAGE_SIZE, PROT_READ | PROT_WRITE | PROT_EXEC,
-		     MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
-	if(stack == MAP_FAILED)
-		panic("start_userspace : mmap failed, errno = %d", errno);
-	sp = (unsigned long) stack + PAGE_SIZE - sizeof(void *);
-
-	flags = CLONE_FILES | SIGCHLD;
-	if(proc_mm) flags |= CLONE_VM;
-	pid = clone(userspace_tramp, (void *) sp, flags, (void *) stub_stack);
-	if(pid < 0)
-		panic("start_userspace : clone failed, errno = %d", errno);
-
-	do {
-		CATCH_EINTR(n = waitpid(pid, &status, WUNTRACED));
-		if(n < 0)
-			panic("start_userspace : wait failed, errno = %d", 
-			      errno);
-	} while(WIFSTOPPED(status) && (WSTOPSIG(status) == SIGVTALRM));
-
-	if(!WIFSTOPPED(status) || (WSTOPSIG(status) != SIGSTOP))
-		panic("start_userspace : expected SIGSTOP, got status = %d",
-		      status);
-
-	if (ptrace(PTRACE_OLDSETOPTIONS, pid, NULL, (void *)PTRACE_O_TRACESYSGOOD) < 0)
-		panic("start_userspace : PTRACE_SETOPTIONS failed, errno=%d\n",
-		      errno);
-
-	if(munmap(stack, PAGE_SIZE) < 0)
-		panic("start_userspace : munmap failed, errno = %d\n", errno);
-
-	return(pid);
-}
-
-void userspace(union uml_pt_regs *regs)
-{
-	int err, status, op, pid = userspace_pid[0];
-	int local_using_sysemu; /*To prevent races if using_sysemu changes under us.*/
-
-	while(1){
-		restore_registers(pid, regs);
-
-		/* Now we set local_using_sysemu to be used for one loop */
-		local_using_sysemu = get_using_sysemu();
-
-		op = SELECT_PTRACE_OPERATION(local_using_sysemu, singlestepping(NULL));
-
-		err = ptrace(op, pid, 0, 0);
-		if(err)
-			panic("userspace - could not resume userspace process, "
-			      "pid=%d, ptrace operation = %d, errno = %d\n",
-			      op, errno);
-
-		CATCH_EINTR(err = waitpid(pid, &status, WUNTRACED));
-		if(err < 0)
-			panic("userspace - waitpid failed, errno = %d\n", 
-			      errno);
-
-		regs->skas.is_user = 1;
-		save_registers(pid, regs);
-		UPT_SYSCALL_NR(regs) = -1; /* Assume: It's not a syscall */
-
-		if(WIFSTOPPED(status)){
-		  	switch(WSTOPSIG(status)){
-			case SIGSEGV:
-                                if(PTRACE_FULL_FAULTINFO || !ptrace_faultinfo)
-                                        user_signal(SIGSEGV, regs, pid);
-                                else handle_segv(pid, regs);
-				break;
-			case SIGTRAP + 0x80:
-			        handle_trap(pid, regs, local_using_sysemu);
-				break;
-			case SIGTRAP:
-				relay_signal(SIGTRAP, regs);
-				break;
-			case SIGIO:
-			case SIGVTALRM:
-			case SIGILL:
-			case SIGBUS:
-			case SIGFPE:
-			case SIGWINCH:
-                                user_signal(WSTOPSIG(status), regs, pid);
-				break;
-			default:
-			        printk("userspace - child stopped with signal "
-				       "%d\n", WSTOPSIG(status));
-			}
-			pid = userspace_pid[0];
-			interrupt_end();
-
-			/* Avoid -ERESTARTSYS handling in host */
-			PT_SYSCALL_NR(regs->skas.regs) = -1;
-		}
-	}
-}
-#define INIT_JMP_NEW_THREAD 0
-#define INIT_JMP_REMOVE_SIGSTACK 1
-#define INIT_JMP_CALLBACK 2
-#define INIT_JMP_HALT 3
-#define INIT_JMP_REBOOT 4
-
-
-int copy_context_skas0(unsigned long new_stack, int pid)
-{
-	int err;
-	unsigned long regs[MAX_REG_NR];
-	unsigned long current_stack = current_stub_stack();
-	struct stub_data *data = (struct stub_data *) current_stack;
-	struct stub_data *child_data = (struct stub_data *) new_stack;
-	__u64 new_offset;
-	int new_fd = phys_mapping(to_phys((void *)new_stack), &new_offset);
-
-	/* prepare offset and fd of child's stack as argument for parent's
-	 * and child's mmap2 calls
-	 */
-	*data = ((struct stub_data) { .offset	= MMAP_OFFSET(new_offset),
-				      .fd	= new_fd,
-				      .timer	= ((struct itimerval)
-					           { { 0, 1000000 / hz() },
-						     { 0, 1000000 / hz() }})});
-	get_safe_registers(regs);
-
-	/* Set parent's instruction pointer to start of clone-stub */
-	regs[REGS_IP_INDEX] = UML_CONFIG_STUB_CODE +
-				(unsigned long) stub_clone_handler -
-				(unsigned long) &__syscall_stub_start;
-	regs[REGS_SP_INDEX] = UML_CONFIG_STUB_DATA + PAGE_SIZE -
-		sizeof(void *);
-	err = ptrace_setregs(pid, regs);
-	if(err < 0)
-		panic("copy_context_skas0 : PTRACE_SETREGS failed, "
-		      "pid = %d, errno = %d\n", pid, errno);
-
-	/* set a well known return code for detection of child write failure */
-	child_data->err = 12345678;
-
-	/* Wait, until parent has finished its work: read child's pid from
-	 * parent's stack, and check, if bad result.
-	 */
-	wait_stub_done(pid, 0, "copy_context_skas0");
-
-	pid = data->err;
-	if(pid < 0)
-		panic("copy_context_skas0 - stub-parent reports error %d\n",
-		      pid);
-
-	/* Wait, until child has finished too: read child's result from
-	 * child's stack and check it.
-	 */
-	wait_stub_done(pid, -1, "copy_context_skas0");
-	if (child_data->err != UML_CONFIG_STUB_DATA)
-		panic("copy_context_skas0 - stub-child reports error %d\n",
-		      child_data->err);
-
-	if (ptrace(PTRACE_OLDSETOPTIONS, pid, NULL,
-		   (void *)PTRACE_O_TRACESYSGOOD) < 0)
-		panic("copy_context_skas0 : PTRACE_SETOPTIONS failed, "
-		      "errno = %d\n", errno);
-
-	return pid;
-}
-
-/*
- * This is used only, if stub pages are needed, while proc_mm is
- * availabl. Opening /proc/mm creates a new mm_context, which lacks
- * the stub-pages. Thus, we map them using /proc/mm-fd
- */
-void map_stub_pages(int fd, unsigned long code,
-		    unsigned long data, unsigned long stack)
-{
-	struct proc_mm_op mmop;
-	int n;
-
-	mmop = ((struct proc_mm_op) { .op        = MM_MMAP,
-				      .u         =
-				      { .mmap    =
-					{ .addr    = code,
-					  .len     = PAGE_SIZE,
-					  .prot    = PROT_EXEC,
-					  .flags   = MAP_FIXED | MAP_PRIVATE,
-					  .fd      = stub_code_fd,
-					  .offset  = stub_code_offset
-	} } });
-	n = os_write_file(fd, &mmop, sizeof(mmop));
-	if(n != sizeof(mmop))
-		panic("map_stub_pages : /proc/mm map for code failed, "
-		      "err = %d\n", -n);
-
-	if ( stack ) {
-		__u64 map_offset;
-		int map_fd = phys_mapping(to_phys((void *)stack), &map_offset);
-		mmop = ((struct proc_mm_op)
-				{ .op        = MM_MMAP,
-				  .u         =
-				  { .mmap    =
-				    { .addr    = data,
-				      .len     = PAGE_SIZE,
-				      .prot    = PROT_READ | PROT_WRITE,
-				      .flags   = MAP_FIXED | MAP_SHARED,
-				      .fd      = map_fd,
-				      .offset  = map_offset
-		} } });
-		n = os_write_file(fd, &mmop, sizeof(mmop));
-		if(n != sizeof(mmop))
-			panic("map_stub_pages : /proc/mm map for data failed, "
-			      "err = %d\n", -n);
-	}
-}
-
-void new_thread(void *stack, void **switch_buf_ptr, void **fork_buf_ptr,
-		void (*handler)(int))
-{
-	unsigned long flags;
-	sigjmp_buf switch_buf, fork_buf;
-
-	*switch_buf_ptr = &switch_buf;
-	*fork_buf_ptr = &fork_buf;
-
-	/* Somewhat subtle - siglongjmp restores the signal mask before doing
-	 * the longjmp.  This means that when jumping from one stack to another
-	 * when the target stack has interrupts enabled, an interrupt may occur
-	 * on the source stack.  This is bad when starting up a process because
-	 * it's not supposed to get timer ticks until it has been scheduled.
-	 * So, we disable interrupts around the sigsetjmp to ensure that
-	 * they can't happen until we get back here where they are safe.
-	 */
-	flags = get_signals();
-	block_signals();
-	if(sigsetjmp(fork_buf, 1) == 0)
-		new_thread_proc(stack, handler);
-
-	remove_sigstack();
-
-	set_signals(flags);
-}
-
-void thread_wait(void *sw, void *fb)
-{
-	sigjmp_buf buf, **switch_buf = sw, *fork_buf;
-
-	*switch_buf = &buf;
-	fork_buf = fb;
-	if(sigsetjmp(buf, 1) == 0)
-		siglongjmp(*fork_buf, INIT_JMP_REMOVE_SIGSTACK);
-}
-
-void switch_threads(void *me, void *next)
-{
-	sigjmp_buf my_buf, **me_ptr = me, *next_buf = next;
-	
-	*me_ptr = &my_buf;
-	if(sigsetjmp(my_buf, 1) == 0)
-		siglongjmp(*next_buf, 1);
-}
-
-static sigjmp_buf initial_jmpbuf;
-
-/* XXX Make these percpu */
-static void (*cb_proc)(void *arg);
-static void *cb_arg;
-static sigjmp_buf *cb_back;
-
-int start_idle_thread(void *stack, void *switch_buf_ptr, void **fork_buf_ptr)
-{
-	sigjmp_buf **switch_buf = switch_buf_ptr;
-	int n;
-
-	set_handler(SIGWINCH, (__sighandler_t) sig_handler,
-		    SA_ONSTACK | SA_RESTART, SIGUSR1, SIGIO, SIGALRM,
-		    SIGVTALRM, -1);
-
-	*fork_buf_ptr = &initial_jmpbuf;
-	n = sigsetjmp(initial_jmpbuf, 1);
-        switch(n){
-        case INIT_JMP_NEW_THREAD:
-                new_thread_proc((void *) stack, new_thread_handler);
-                break;
-        case INIT_JMP_REMOVE_SIGSTACK:
-                remove_sigstack();
-                break;
-        case INIT_JMP_CALLBACK:
-		(*cb_proc)(cb_arg);
-		siglongjmp(*cb_back, 1);
-                break;
-        case INIT_JMP_HALT:
-		kmalloc_ok = 0;
-		return(0);
-        case INIT_JMP_REBOOT:
-		kmalloc_ok = 0;
-		return(1);
-        default:
-                panic("Bad sigsetjmp return in start_idle_thread - %d\n", n);
-	}
-	siglongjmp(**switch_buf, 1);
-}
-
-void initial_thread_cb_skas(void (*proc)(void *), void *arg)
-{
-	sigjmp_buf here;
-
-	cb_proc = proc;
-	cb_arg = arg;
-	cb_back = &here;
-
-	block_signals();
-	if(sigsetjmp(here, 1) == 0)
-		siglongjmp(initial_jmpbuf, INIT_JMP_CALLBACK);
-	unblock_signals();
-
-	cb_proc = NULL;
-	cb_arg = NULL;
-	cb_back = NULL;
-}
-
-void halt_skas(void)
-{
-	block_signals();
-	siglongjmp(initial_jmpbuf, INIT_JMP_HALT);
-}
-
-void reboot_skas(void)
-{
-	block_signals();
-	siglongjmp(initial_jmpbuf, INIT_JMP_REBOOT);
-}
-
-void switch_mm_skas(struct mm_id *mm_idp)
-{
-	int err;
-
-#warning need cpu pid in switch_mm_skas
-	if(proc_mm){
-		err = ptrace(PTRACE_SWITCH_MM, userspace_pid[0], 0,
-			     mm_idp->u.mm_fd);
-		if(err)
-			panic("switch_mm_skas - PTRACE_SWITCH_MM failed, "
-			      "errno = %d\n", errno);
-	}
-	else userspace_pid[0] = mm_idp->u.pid;
-}
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only.  This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c
index e2d3ca445ef5..27cdf9164422 100644
--- a/arch/um/kernel/um_arch.c
+++ b/arch/um/kernel/um_arch.c
@@ -193,6 +193,24 @@ __uml_setup("root=", uml_root_setup,
 "        root=/dev/ubd5\n\n"
 );
 
+#ifndef CONFIG_MODE_TT
+
+static int __init no_skas_debug_setup(char *line, int *add)
+{
+	printf("'debug' is not necessary to gdb UML in skas mode - run \n");
+	printf("'gdb linux' and disable CONFIG_CMDLINE_ON_HOST if gdb \n");
+	printf("doesn't work as expected\n");
+
+	return 0;
+}
+
+__uml_setup("debug", no_skas_debug_setup,
+"debug\n"
+"    this flag is not needed to run gdb on UML in skas mode\n\n"
+);
+
+#endif
+
 #ifdef CONFIG_SMP
 static int __init uml_ncpus_setup(char *line, int *add)
 {
diff --git a/arch/um/os-Linux/drivers/tuntap_user.c b/arch/um/os-Linux/drivers/tuntap_user.c
index 52945338b64d..87c3aa0252db 100644
--- a/arch/um/os-Linux/drivers/tuntap_user.c
+++ b/arch/um/os-Linux/drivers/tuntap_user.c
@@ -122,6 +122,7 @@ static int tuntap_open_tramp(char *gate, int *fd_out, int me, int remote,
 		return(-EINVAL);
 	}
 	*fd_out = ((int *) CMSG_DATA(cmsg))[0];
+	os_set_exec_close(*fd_out, 1);
 	return(0);
 }
 
@@ -137,7 +138,8 @@ static int tuntap_open(void *data)
 		return(err);
 
 	if(pri->fixed_config){
-		pri->fd = os_open_file("/dev/net/tun", of_rdwr(OPENFLAGS()), 0);
+		pri->fd = os_open_file("/dev/net/tun",
+				       of_cloexec(of_rdwr(OPENFLAGS())), 0);
 		if(pri->fd < 0){
 			printk("Failed to open /dev/net/tun, err = %d\n",
 			       -pri->fd);
diff --git a/arch/um/os-Linux/skas/mem.c b/arch/um/os-Linux/skas/mem.c
index 9890e9090f58..fbb080c2fc26 100644
--- a/arch/um/os-Linux/skas/mem.c
+++ b/arch/um/os-Linux/skas/mem.c
@@ -60,7 +60,7 @@ static inline long do_syscall_stub(struct mm_id * mm_idp, void **addr)
 
 	multi_count++;
 
-	get_safe_registers(regs);
+	get_safe_registers(regs, NULL);
 	regs[REGS_IP_INDEX] = UML_CONFIG_STUB_CODE +
 		((unsigned long) &batch_syscall_stub -
 		 (unsigned long) &__syscall_stub_start);
diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c
index 120a21c5883f..bbf34cb91ce1 100644
--- a/arch/um/os-Linux/skas/process.c
+++ b/arch/um/os-Linux/skas/process.c
@@ -310,16 +310,12 @@ void userspace(union uml_pt_regs *regs)
 		}
 	}
 }
-#define INIT_JMP_NEW_THREAD 0
-#define INIT_JMP_REMOVE_SIGSTACK 1
-#define INIT_JMP_CALLBACK 2
-#define INIT_JMP_HALT 3
-#define INIT_JMP_REBOOT 4
 
 int copy_context_skas0(unsigned long new_stack, int pid)
 {
 	int err;
-	unsigned long regs[MAX_REG_NR];
+	unsigned long regs[HOST_FRAME_SIZE];
+	unsigned long fp_regs[HOST_FP_SIZE];
 	unsigned long current_stack = current_stub_stack();
 	struct stub_data *data = (struct stub_data *) current_stack;
 	struct stub_data *child_data = (struct stub_data *) new_stack;
@@ -334,7 +330,7 @@ int copy_context_skas0(unsigned long new_stack, int pid)
 				      .timer    = ((struct itimerval)
 					            { { 0, 1000000 / hz() },
 						      { 0, 1000000 / hz() }})});
-	get_safe_registers(regs);
+	get_safe_registers(regs, fp_regs);
 
 	/* Set parent's instruction pointer to start of clone-stub */
 	regs[REGS_IP_INDEX] = UML_CONFIG_STUB_CODE +
@@ -350,6 +346,11 @@ int copy_context_skas0(unsigned long new_stack, int pid)
 		panic("copy_context_skas0 : PTRACE_SETREGS failed, "
 		      "pid = %d, errno = %d\n", pid, errno);
 
+	err = ptrace_setfpregs(pid, fp_regs);
+	if(err < 0)
+		panic("copy_context_skas0 : PTRACE_SETFPREGS failed, "
+		      "pid = %d, errno = %d\n", pid, errno);
+
 	/* set a well known return code for detection of child write failure */
 	child_data->err = 12345678;
 
@@ -457,6 +458,12 @@ void new_thread(void *stack, void **switch_buf_ptr, void **fork_buf_ptr,
 	set_signals(flags);
 }
 
+#define INIT_JMP_NEW_THREAD 0
+#define INIT_JMP_REMOVE_SIGSTACK 1
+#define INIT_JMP_CALLBACK 2
+#define INIT_JMP_HALT 3
+#define INIT_JMP_REBOOT 4
+
 void thread_wait(void *sw, void *fb)
 {
 	sigjmp_buf buf, **switch_buf = sw, *fork_buf;
diff --git a/arch/um/os-Linux/start_up.c b/arch/um/os-Linux/start_up.c
index 6c5b17ed59e1..829d6b0d8b02 100644
--- a/arch/um/os-Linux/start_up.c
+++ b/arch/um/os-Linux/start_up.c
@@ -49,6 +49,7 @@ static int ptrace_child(void *arg)
 	int pid = os_getpid(), ppid = getppid();
 	int sc_result;
 
+	change_sig(SIGWINCH, 0);
 	if(ptrace(PTRACE_TRACEME, 0, 0, 0) < 0){
 		perror("ptrace");
 		os_kill_process(pid, 0);
diff --git a/arch/um/os-Linux/sys-i386/registers.c b/arch/um/os-Linux/sys-i386/registers.c
index aee4812333c6..7a6f6b99ceff 100644
--- a/arch/um/os-Linux/sys-i386/registers.c
+++ b/arch/um/os-Linux/sys-i386/registers.c
@@ -122,9 +122,12 @@ void init_registers(int pid)
 		      err);
 }
 
-void get_safe_registers(unsigned long *regs)
+void get_safe_registers(unsigned long *regs, unsigned long *fp_regs)
 {
 	memcpy(regs, exec_regs, HOST_FRAME_SIZE * sizeof(unsigned long));
+	if(fp_regs != NULL)
+		memcpy(fp_regs, exec_fp_regs,
+		       HOST_FP_SIZE * sizeof(unsigned long));
 }
 
 void get_thread_regs(union uml_pt_regs *uml_regs, void *buffer)
diff --git a/arch/um/os-Linux/sys-x86_64/registers.c b/arch/um/os-Linux/sys-x86_64/registers.c
index 4b638dfb52b0..001941fa1a1e 100644
--- a/arch/um/os-Linux/sys-x86_64/registers.c
+++ b/arch/um/os-Linux/sys-x86_64/registers.c
@@ -70,9 +70,12 @@ void init_registers(int pid)
 		      err);
 }
 
-void get_safe_registers(unsigned long *regs)
+void get_safe_registers(unsigned long *regs, unsigned long *fp_regs)
 {
 	memcpy(regs, exec_regs, HOST_FRAME_SIZE * sizeof(unsigned long));
+	if(fp_regs != NULL)
+		memcpy(fp_regs, exec_fp_regs,
+		       HOST_FP_SIZE * sizeof(unsigned long));
 }
 
 void get_thread_regs(union uml_pt_regs *uml_regs, void *buffer)
diff --git a/arch/um/sys-x86_64/ptrace_user.c b/arch/um/sys-x86_64/ptrace_user.c
index 12e404c6fa46..b5f9c33e311e 100644
--- a/arch/um/sys-x86_64/ptrace_user.c
+++ b/arch/um/sys-x86_64/ptrace_user.c
@@ -24,6 +24,13 @@ int ptrace_setregs(long pid, unsigned long *regs)
 	return(0);
 }
 
+int ptrace_setfpregs(long pid, unsigned long *regs)
+{
+	if (ptrace(PTRACE_SETFPREGS, pid, 0, regs) < 0)
+		return -errno;
+	return 0;
+}
+
 void ptrace_pokeuser(unsigned long addr, unsigned long data)
 {
 	panic("ptrace_pokeuser");
diff --git a/arch/um/sys-x86_64/user-offsets.c b/arch/um/sys-x86_64/user-offsets.c
index 5a585bfbb8c2..7bd54a921cf7 100644
--- a/arch/um/sys-x86_64/user-offsets.c
+++ b/arch/um/sys-x86_64/user-offsets.c
@@ -57,7 +57,7 @@ void foo(void)
 #endif
 
 	DEFINE_LONGS(HOST_FRAME_SIZE, FRAME_SIZE);
-	DEFINE(HOST_FP_SIZE, 0);
+	DEFINE(HOST_FP_SIZE, sizeof(struct _fpstate) / sizeof(unsigned long));
 	DEFINE(HOST_XFP_SIZE, 0);
 	DEFINE_LONGS(HOST_RBX, RBX);
 	DEFINE_LONGS(HOST_RCX, RCX);
diff --git a/arch/x86_64/ia32/ia32entry.S b/arch/x86_64/ia32/ia32entry.S
index 067c0f47bd0d..ada4535d0161 100644
--- a/arch/x86_64/ia32/ia32entry.S
+++ b/arch/x86_64/ia32/ia32entry.S
@@ -685,6 +685,9 @@ ia32_sys_call_table:
 	.quad sys_readlinkat		/* 305 */
 	.quad sys_fchmodat
 	.quad sys_faccessat
+	.quad sys_ni_syscall		/* pselect6 for now */
+	.quad sys_ni_syscall		/* ppoll for now */
+	.quad sys_unshare		/* 310 */
 ia32_syscall_end:		
 	.rept IA32_NR_syscalls-(ia32_syscall_end-ia32_sys_call_table)/8
 		.quad ni_syscall
diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c
index 363db5a003df..9435ab7d6fb8 100644
--- a/arch/x86_64/kernel/setup.c
+++ b/arch/x86_64/kernel/setup.c
@@ -94,7 +94,6 @@ unsigned long saved_video_mode;
 /*
  * Setup options
  */
-struct drive_info_struct { char dummy[32]; } drive_info;
 struct screen_info screen_info;
 struct sys_desc_table_struct {
 	unsigned short length;
@@ -572,7 +571,6 @@ void __init setup_arch(char **cmdline_p)
 	unsigned long kernel_end;
 
  	ROOT_DEV = old_decode_dev(ORIG_ROOT_DEV);
- 	drive_info = DRIVE_INFO;
  	screen_info = SCREEN_INFO;
 	edid_info = EDID_INFO;
 	saved_video_mode = SAVED_VIDEO_MODE;
diff --git a/arch/x86_64/kernel/smpboot.c b/arch/x86_64/kernel/smpboot.c
index a28756ef7cef..67e4e28f4df8 100644
--- a/arch/x86_64/kernel/smpboot.c
+++ b/arch/x86_64/kernel/smpboot.c
@@ -59,6 +59,7 @@
 #include <asm/nmi.h>
 #include <asm/irq.h>
 #include <asm/hw_irq.h>
+#include <asm/numa.h>
 
 /* Number of siblings per CPU package */
 int smp_num_siblings = 1;
@@ -890,6 +891,7 @@ do_rest:
 	if (boot_error) {
 		cpu_clear(cpu, cpu_callout_map); /* was set here (do_boot_cpu()) */
 		clear_bit(cpu, &cpu_initialized); /* was set by cpu_init() */
+		clear_node_cpumask(cpu); /* was set by numa_add_cpu */
 		cpu_clear(cpu, cpu_present_map);
 		cpu_clear(cpu, cpu_possible_map);
 		x86_cpu_to_apicid[cpu] = BAD_APICID;
@@ -1187,6 +1189,7 @@ void remove_cpu_from_maps(void)
 	cpu_clear(cpu, cpu_callout_map);
 	cpu_clear(cpu, cpu_callin_map);
 	clear_bit(cpu, &cpu_initialized); /* was set by cpu_init() */
+	clear_node_cpumask(cpu);
 }
 
 int __cpu_disable(void)
diff --git a/arch/x86_64/kernel/time.c b/arch/x86_64/kernel/time.c
index c0844bffbf84..dba7237be5c1 100644
--- a/arch/x86_64/kernel/time.c
+++ b/arch/x86_64/kernel/time.c
@@ -748,7 +748,7 @@ static __init int late_hpet_init(void)
 	 * Timer0 and Timer1 is used by platform.
 	 */
 	hd.hd_phys_address = vxtime.hpet_address;
-	hd.hd_address = (void *)fix_to_virt(FIX_HPET_BASE);
+	hd.hd_address = (void __iomem *)fix_to_virt(FIX_HPET_BASE);
 	hd.hd_nirqs = ntimer;
 	hd.hd_flags = HPET_DATA_PLATFORM;
 	hpet_reserve_timer(&hd, 0);
diff --git a/arch/x86_64/kernel/x8664_ksyms.c b/arch/x86_64/kernel/x8664_ksyms.c
index b614d54d2ae4..3496abc8d372 100644
--- a/arch/x86_64/kernel/x8664_ksyms.c
+++ b/arch/x86_64/kernel/x8664_ksyms.c
@@ -39,11 +39,6 @@ extern void __write_lock_failed(rwlock_t *rw);
 extern void __read_lock_failed(rwlock_t *rw);
 #endif
 
-#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_HD) || defined(CONFIG_BLK_DEV_IDE_MODULE) || defined(CONFIG_BLK_DEV_HD_MODULE)
-extern struct drive_info_struct drive_info;
-EXPORT_SYMBOL(drive_info);
-#endif
-
 /* platform dependent support */
 EXPORT_SYMBOL(boot_cpu_data);
 //EXPORT_SYMBOL(dump_fpu);
diff --git a/arch/x86_64/pci/mmconfig.c b/arch/x86_64/pci/mmconfig.c
index b4a3fe4ec249..18f371fe37f8 100644
--- a/arch/x86_64/pci/mmconfig.c
+++ b/arch/x86_64/pci/mmconfig.c
@@ -49,7 +49,7 @@ static char __iomem *get_virt(unsigned int seg, unsigned bus)
 		return pci_mmcfg_virt[0].virt;
 
 	/* Fall back to type 0 */
-	return 0;
+	return NULL;
 }
 
 static char __iomem *pci_dev_base(unsigned int seg, unsigned int bus, unsigned int devfn)