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2012-01-08Merge branch 'next/cleanup' into samsung/dtArnd Bergmann1-0/+17
Conflicts: arch/arm/mach-exynos/common.c The common.c file gets changes from rmk/stable-devel (part of next/cleanup), rmk/restart, samsung/dt and follow-on branches from the samsung tree. Pulling it all together here hopefully avoids having to do even more conflicting merge changesets in this one file. What a mess! Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-01-08Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds2-19/+18
devicetree/next changes queued for v3.3 merge window * tag 'devicetree-for-linus-20120104' of git://git.secretlab.ca/git/linux-2.6: ARM: prom.h: Fix build error by removing unneeded header file irq: check domain hwirq range for DT translate dt: add empty of_get_node/of_put_node functions of/pdt: fix section mismatch warning i2c-designware: add OF binding support dt/i2c: Enumerate some of the known trivial i2c devices dt: reform for_each_property to for_each_property_of_node ARM/of: allow *machine_desc.dt_compat to be const of/base: Take NULL string into account for property with multiple strings OF/device-tree: Add some entries to vendor-prefixes.txt Fix up trivial add-add conflicts in include/linux/of.h
2012-01-08Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds3-6/+19
Changes queued in gpio/next for the start of the 3.3 merge window * tag 'gpio-for-linus-20120104' of git://git.secretlab.ca/git/linux-2.6: gpio: Add decode of WM8994 GPIO configuration gpio: Convert GPIO drivers to module_platform_driver gpio: Fix typo in comment in Samsung driver gpio: Explicitly index samsung_gpio_cfgs gpio: Add Linus Walleij as gpio co-maintainer of: Add device tree selftests of: create of_phandle_args to simplify return of phandle parsing data gpio/powerpc: Eliminate duplication of of_get_named_gpio_flags() gpio/microblaze: Eliminate duplication of of_get_named_gpio_flags() gpiolib: output basic details and consolidate gpio device drivers pch_gpio: Change company name OKI SEMICONDUCTOR to LAPIS Semiconductor pch_gpio: Support new device LAPIS Semiconductor ML7831 IOH spi/pl022: make the chip deselect handling thread safe spi/pl022: add support for pm_runtime autosuspend spi/pl022: disable the PL022 block when unused spi/pl022: move device disable to workqueue thread spi/pl022: skip default configuration before suspending spi/pl022: fix build warnings spi/pl022: only enable RX interrupts when TX is complete
2012-01-08Merge branch 'driver-core-next' of ↵Linus Torvalds12-44/+254
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core * 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (73 commits) arm: fix up some samsung merge sysdev conversion problems firmware: Fix an oops on reading fw_priv->fw in sysfs loading file Drivers:hv: Fix a bug in vmbus_driver_unregister() driver core: remove __must_check from device_create_file debugfs: add missing #ifdef HAS_IOMEM arm: time.h: remove device.h #include driver-core: remove sysdev.h usage. clockevents: remove sysdev.h arm: convert sysdev_class to a regular subsystem arm: leds: convert sysdev_class to a regular subsystem kobject: remove kset_find_obj_hinted() m86k: gpio - convert sysdev_class to a regular subsystem mips: txx9_sram - convert sysdev_class to a regular subsystem mips: 7segled - convert sysdev_class to a regular subsystem sh: dma - convert sysdev_class to a regular subsystem sh: intc - convert sysdev_class to a regular subsystem power: suspend - convert sysdev_class to a regular subsystem power: qe_ic - convert sysdev_class to a regular subsystem power: cmm - convert sysdev_class to a regular subsystem s390: time - convert sysdev_class to a regular subsystem ... Fix up conflicts with 'struct sysdev' removal from various platform drivers that got changed: - arch/arm/mach-exynos/cpu.c - arch/arm/mach-exynos/irq-eint.c - arch/arm/mach-s3c64xx/common.c - arch/arm/mach-s3c64xx/cpu.c - arch/arm/mach-s5p64x0/cpu.c - arch/arm/mach-s5pv210/common.c - arch/arm/plat-samsung/include/plat/cpu.h - arch/powerpc/kernel/sysfs.c and fix up cpu_is_hotpluggable() as per Greg in include/linux/cpu.h
2012-01-07NFSv4: Save the owner/group name string when doing openTrond Myklebust2-5/+20
...so that we can do the uid/gid mapping outside the asynchronous RPC context. This fixes a bug in the current NFSv4 atomic open code where the client isn't able to determine what the true uid/gid fields of the file are, (because the asynchronous nature of the OPEN call denies it the ability to do an upcall) and so fills them with default values, marking the inode as needing revalidation. Unfortunately, in some cases, the VFS will do some additional sanity checks on the file, and may override the server's decision to allow the open because it sees the wrong owner/group fields. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-01-07[media] V4L/DVB: v4l2-ioctl: integer overflow in video_usercopy()Dan Carpenter1-0/+1
If ctrls->count is too high the multiplication could overflow and array_size would be lower than expected. Mauro and Hans Verkuil suggested that we cap it at 1024. That comes from the maximum number of controls with lots of room for expantion. $ grep V4L2_CID include/linux/videodev2.h | wc -l 211 Cc: stable <stable@vger.kernel.org> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-07Merge branch 'depends/rmk/for-linus' into samsung/dtArnd Bergmann5-8/+44
Conflicts: arch/arm/mach-exynos/Makefile arch/arm/mach-exynos/cpu.c -> common.c arch/arm/mach-exynos/include/mach/entry-macro.S arch/arm/mach-exynos/init.c -> common.c arch/arm/mach-s5p64x0/init.c -> common.c arch/arm/mach-s5pv210/init.c -> common.c Multiple files were moved into common.c files in the rmk/for-linus branch, so this moves over the samsung/dt changes to the new files. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-01-07Merge branch 'depends/rmk/restart' into next/cleanupArnd Bergmann6-11/+48
Conflicts: arch/arm/mach-at91/at91cap9.c arch/arm/mach-at91/at91sam9260.c arch/arm/mach-at91/at91sam9261.c arch/arm/mach-at91/at91sam9263.c arch/arm/mach-at91/at91sam9g45.c arch/arm/mach-at91/at91sam9rl.c arch/arm/mach-exynos/cpu.c arch/arm/mach-shmobile/board-kota2.c This resolves a bunch of conflicts between the arm-soc tree and changes from the arm tree that have gone upstream. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-01-07reiserfs: Properly display mount options in /proc/mountsJan Kara2-4/+7
Make reiserfs properly display mount options in /proc/mounts. CC: reiserfs-devel@vger.kernel.org Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-07vfs: prevent remount read-only if pending removesMiklos Szeredi1-2/+0
If there are any inodes on the super block that have been unlinked (i_nlink == 0) but have not yet been deleted then prevent the remounting the super block read-only. Reported-by: Toshiyuki Okajima <toshi.okajima@jp.fujitsu.com> Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Tested-by: Toshiyuki Okajima <toshi.okajima@jp.fujitsu.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-07vfs: count unlinked inodesMiklos Szeredi1-54/+7
Add a new counter to the superblock that keeps track of unlinked but not yet deleted inodes. Do not WARN_ON if set_nlink is called with zero count, just do a ratelimited printk. This happens on xfs and probably other filesystems after an unclean shutdown when the filesystem reads inodes which already have zero i_nlink. Reported by Christoph Hellwig. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Tested-by: Toshiyuki Okajima <toshi.okajima@jp.fujitsu.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-07vfs: protect remounting superblock read-onlyMiklos Szeredi1-0/+3
Currently remouting superblock read-only is racy in a major way. With the per mount read-only infrastructure it is now possible to prevent most races, which this patch attempts. Before starting the remount read-only, iterate through all mounts belonging to the superblock and if none of them have any pending writes, set sb->s_readonly_remount. This indicates that remount is in progress and no further write requests are allowed. If the remount succeeds set MS_RDONLY and reset s_readonly_remount. If the remounting is unsuccessful just reset s_readonly_remount. This can result in transient EROFS errors, despite the fact the remount failed. Unfortunately hodling off writes is difficult as remount itself may touch the filesystem (e.g. through load_nls()) which would deadlock. A later patch deals with delayed writes due to nlink going to zero. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Tested-by: Toshiyuki Okajima <toshi.okajima@jp.fujitsu.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-07vfs: keep list of mounts for each superblockMiklos Szeredi1-0/+1
Keep track of vfsmounts belonging to a superblock. List is protected by vfsmount_lock. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Tested-by: Toshiyuki Okajima <toshi.okajima@jp.fujitsu.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-07vfs: switch ->show_options() to struct dentry *Al Viro1-2/+2
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-07vfs: switch ->show_path() to struct dentry *Al Viro1-1/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-07vfs: switch ->show_devname() to struct dentry *Al Viro1-1/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-07vfs: switch ->show_stats to struct dentry *Al Viro1-1/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-07switch security_path_chmod() to struct path *Al Viro1-7/+3
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-07Merge branches 'vfsmount-guts', 'umode_t' and 'partitions' into ZAl Viro26-107/+111
2012-01-07Merge branch 'for-linus' of ↵Linus Torvalds2-1/+3
git://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm * 'for-linus' of git://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm: (207 commits) ARM: 7267/1: Remove BUILD_BUG_ON from asm/bug.h ARM: 7269/1: mach-sa1100: fix sched_clock breakage ARM: 7198/1: arm/imx6: add restart support for imx6q ARM: restart: remove the now empty arch_reset() ARM: restart: remove comments about adding code to arch_reset() ARM: restart: lpc32xx & u300: remove unnecessary printk ARM: restart: plat-samsung: remove plat/reset.h and s5p_reset_hook ARM: restart: w90x900: use new restart hook ARM: restart: Versatile Express: use new restart hook ARM: restart: versatile: use new restart hook ARM: restart: u300: use new restart hook ARM: restart: tegra: use new restart hook ARM: restart: spear: use new restart hook ARM: restart: shark: use new restart hook ARM: restart: sa1100: use new restart hook ARM: 7252/1: restart: S5PV210: use new restart hook ARM: 7251/1: restart: S5PC100: use new restart hook ARM: 7250/1: restart: S5P64X0: use new restart hook ARM: 7266/1: restart: S3C64XX: use new restart hook ARM: 7265/1: restart: S3C24XX: use new restart hook ... Fix up trivial conflict in arch/arm/mm/init.c due to removal of memblock_init() clashing with the movement of the sorting of the meminfo array.
2012-01-07Merge branch 'amba-modalias' of ↵Linus Torvalds2-6/+19
git://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm * 'amba-modalias' of git://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm: sound: aaci: Enable module alias autogeneration for AMBA drivers watchdog: sp805: Enable module alias autogeneration for AMBA drivers fbdev: amba: Enable module alias autogeneration for AMBA drivers serial: pl011: Enable module alias autogeneration for AMBA drivers serial: pl010: Enable module alias autogeneration for AMBA drivers spi: pl022: Enable module alias autogeneration for AMBA drivers rtc: pl031: Enable module alias autogeneration for AMBA drivers rtc: pl030: Enable module alias autogeneration for AMBA drivers mmc: mmci: Enable module alias autogeneration for AMBA drivers input: ambakmi: Enable module alias autogeneration for AMBA drivers gpio: pl061: Enable module alias autogeneration for AMBA drivers dmaengine: pl330: Enable module alias autogeneration for AMBA drivers dmaengine: pl08x: Enable module alias autogeneration for AMBA drivers hwrng: nomadik: Enable module alias autogeneration for AMBA drivers ARM: amba: Auto-generate AMBA driver module aliases during modpost ARM: amba: Move definition of struct amba_id to mod_devicetable.h
2012-01-07Merge branch 'pstore' of ↵Linus Torvalds1-7/+5
git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux * 'pstore' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux: pstore: gracefully handle NULL pstore_info functions pstore: pass reason to backend write callback
2012-01-07Merge branch 'next' of ↵Linus Torvalds1-2/+0
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (185 commits) powerpc: fix compile error with 85xx/p1010rdb.c powerpc: fix compile error with 85xx/p1023_rds.c powerpc/fsl: add MSI support for the Freescale hypervisor arch/powerpc/sysdev/fsl_rmu.c: introduce missing kfree powerpc/fsl: Add support for Integrated Flash Controller powerpc/fsl: update compatiable on fsl 16550 uart nodes powerpc/85xx: fix PCI and localbus properties in p1022ds.dts powerpc/85xx: re-enable ePAPR byte channel driver in corenet32_smp_defconfig powerpc/fsl: Update defconfigs to enable some standard FSL HW features powerpc: Add TBI PHY node to first MDIO bus sbc834x: put full compat string in board match check powerpc/fsl-pci: Allow 64-bit PCIe devices to DMA to any memory address powerpc: Fix unpaired probe_hcall_entry and probe_hcall_exit offb: Fix setting of the pseudo-palette for >8bpp offb: Add palette hack for qemu "standard vga" framebuffer offb: Fix bug in calculating requested vram size powerpc/boot: Change the WARN to INFO for boot wrapper overlap message powerpc/44x: Fix build error on currituck platform powerpc/boot: Change the load address for the wrapper to fit the kernel powerpc/44x: Enable CRASH_DUMP for 440x ... Fix up a trivial conflict in arch/powerpc/include/asm/cputime.h due to the additional sparse-checking code for cputime_t.
2012-01-07Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds59-457/+2449
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1958 commits) net: pack skb_shared_info more efficiently net_sched: red: split red_parms into parms and vars net_sched: sfq: extend limits cnic: Improve error recovery on bnx2x devices cnic: Re-init dev->stats_addr after chip reset net_sched: Bug in netem reordering bna: fix sparse warnings/errors bna: make ethtool_ops and strings const xgmac: cleanups net: make ethtool_ops const vmxnet3" make ethtool ops const xen-netback: make ops structs const virtio_net: Pass gfp flags when allocating rx buffers. ixgbe: FCoE: Add support for ndo_get_fcoe_hbainfo() call netdev: FCoE: Add new ndo_get_fcoe_hbainfo() call igb: reset PHY after recovering from PHY power down igb: add basic runtime PM support igb: Add support for byte queue limits. e1000: cleanup CE4100 MDIO registers access e1000: unmap ce4100_gbe_mdio_base_virt in e1000_remove ...
2012-01-07PCI: Increase resource array mask bit size in pcim_iomap_regions()Yinghai Lu1-3/+3
DEVICE_COUNT_RESOURCE will be bigger than 16 when SRIOV supported is enabled. Let them pass with int just like pci_enable_resources(). Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-01-07PCI: DEVICE_COUNT_RESOURCE should be equal to PCI_NUM_RESOURCESYinghai Lu1-1/+1
Save some bytes for device resource array. Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-01-07PCI: pci_ids: add device ids for STA2X11 device (aka ConneXT)Alessandro Rubini1-0/+23
The chip is an I/O hub used by some Atom boards. Most of those symbols are used in arch/x86/platform/sta2x11/sta2x11.c (to be introduced) and in the specific drivers as well. Signed-off-by: Alessandro Rubini <rubini@gnudd.com> Acked-by: Giancarlo Asnaghi <giancarlo.asnaghi@st.com> Cc: Alan Cox <alan@linux.intel.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-01-07PCI: remove pci_create_bus()Bjorn Helgaas1-2/+0
All users of pci_create_bus() have been converted to pci_create_root_bus(), so remove it. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-01-07PCI: convert pci_scan_bus() to use pci_create_root_bus()Bjorn Helgaas1-9/+1
I plan to deprecate pci_scan_bus_parented(), so use pci_create_root_bus() directly instead. pci_scan_bus() itself will be removed as soon as all callers are gone, so this is just an interim step. v2: export pci_scan_bus Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-01-07PCI: add pci_scan_root_bus() that accepts resource listBjorn Helgaas1-0/+3
"Early" and "header" quirks often use incorrect bus resources because they see the default resources assigned by pci_create_bus(), before the architecture fixes them up (typically in pcibios_fixup_bus()). Regions reserved by these quirks end up with the wrong parents. Here's the standard path for scanning a PCI root bus: pci_scan_bus or pci_scan_bus_parented pci_create_bus <-- A create with default resources pci_scan_child_bus pci_scan_slot pci_scan_single_device pci_scan_device pci_setup_device pci_fixup_device(early) <-- B pci_device_add pci_fixup_device(header) <-- C pcibios_fixup_bus <-- D fill in correct resources Early and header quirks at B and C use the default (incorrect) root bus resources rather than those filled in at D. This patch adds a new pci_scan_root_bus() function that sets the bus resources correctly from a supplied list of resources. I intend to remove pci_scan_bus() and pci_scan_bus_parented() after fixing all callers. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-01-07PCI: add pci_create_root_bus() that accepts resource listBjorn Helgaas1-0/+3
pci_create_bus() assigns ioport_resource and iomem_resource as the default bus resources, i.e., the entire address space. Architectures fix these later, typically in pcibios_fixup_bus() or after pci_scan_bus_parented() returns, but code that runs in the interim sees incorrect resource information. This patch adds a new pci_create_root_bus() that sets the bus resources correctly from a supplied list of resources. I intend to remove pci_create_bus() after changing all callers. Based on original patch by Deng-Cheng Zhu. Reference: http://www.spinics.net/lists/mips/msg41654.html Reference: https://lkml.org/lkml/2011/8/26/88 Signed-off-by: Deng-Cheng Zhu <dczhu@mips.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-01-07PCI: add helpers for building PCI bus resource listsBjorn Helgaas1-0/+2
We'd like to supply a list of resources when we create a new PCI bus, e.g., the root bus under a PCI host bridge. These are helpers for constructing that list. These are exported because the plan is to replace this exported interface: pci_scan_bus_parented() with this one: pci_add_resource(resources, ...) pci_scan_root_bus(..., resources) Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-01-07PCI: Pull PCI 'latency timer' setup up into the coreMyron Stowe1-0/+3
The 'latency timer' of PCI devices, both Type 0 and Type 1, is setup in architecture-specific code [see: 'pcibios_set_master()']. There are two approaches being taken by all the architectures - check if the 'latency timer' is currently set between 16 and 255 and if not bring it within bounds, or, do nothing (and then there is the gratuitously different PA-RISC implementation). There is nothing architecture-specific about PCI's 'latency timer' so this patch pulls its setup functionality up into the PCI core by creating a generic 'pcibios_set_master()' function using the '__weak' attribute which can be used by all architectures as a default which, if necessary, can then be over-ridden by architecture-specific code. No functional change. Signed-off-by: Myron Stowe <myron.stowe@redhat.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-01-07PCI: add declaration for pcibios_set_master() to pci coreMyron Stowe1-0/+2
Currently, pcibios_set_master() is implemented in architecture- specific code. There is nothing architecture-specific about PCI's 'latency timer'. This patch adds a declaration for pcibios_set_master() to PCI's core in preperation for pulling the function itself up into the core. Without the addition of this declaration, subsequent patches that remove inline definitions of pcibios_set_master() would be removing the only declaration of such. No functional change. Signed-off-by: Myron Stowe <myron.stowe@redhat.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-01-07PCI: Introduce INTx check & mask APIJan Kiszka1-0/+3
These new PCI services allow to probe for 2.3-compliant INTx masking support and then use the feature from PCI interrupt handlers. The services are properly synchronized with concurrent config space access via sysfs or on device reset. This enables generic PCI device drivers like uio_pci_generic or KVM's device assignment to implement the necessary kernel-side IRQ handling without any knowledge about device-specific interrupt status and control registers. Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-01-07PCI: Rework config space blocking servicesJan Kiszka1-5/+9
pci_block_user_cfg_access was designed for the use case that a single context, the IPR driver, temporarily delays user space accesses to the config space via sysfs. This assumption became invalid by the time pci_dev_reset was added as locking instance. Today, if you run two loops in parallel that reset the same device via sysfs, you end up with a kernel BUG as pci_block_user_cfg_access detect the broken assumption. This reworks the pci_block_user_cfg_access to a sleeping service pci_cfg_access_lock and an atomic-compatible variant called pci_cfg_access_trylock. The former not only blocks user space access as before but also waits if access was already locked. The latter service just returns false in this case, allowing the caller to resolve the conflict instead of raising a BUG. Adaptions of the ipr driver were originally written by Brian King. Acked-by: Brian King <brking@linux.vnet.ibm.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-01-07PCI: Fix PCI_EXP_TYPE_RC_EC valueAlex Williamson1-1/+1
Spec shows this as 1010b = 0xa Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-01-07PCI: Rework ASPM disable codeMatthew Garrett1-2/+2
Right now we forcibly clear ASPM state on all devices if the BIOS indicates that the feature isn't supported. Based on the Microsoft presentation "PCI Express In Depth for Windows Vista and Beyond", I'm starting to think that this may be an error. The implication is that unless the platform grants full control via _OSC, Windows will not touch any PCIe features - including ASPM. In that case clearing ASPM state would be an error unless the platform has granted us that control. This patch reworks the ASPM disabling code such that the actual clearing of state is triggered by a successful handoff of PCIe control to the OS. The general ASPM code undergoes some changes in order to ensure that the ability to clear the bits isn't overridden by ASPM having already been disabled. Further, this theoretically now allows for situations where only a subset of PCIe roots hand over control, leaving the others in the BIOS state. It's difficult to know for sure that this is the right thing to do - there's zero public documentation on the interaction between all of these components. But enough vendors enable ASPM on platforms and then set this bit that it seems likely that they're expecting the OS to leave them alone. Measured to save around 5W on an idle Thinkpad X220. Signed-off-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-01-07PCI: Fix PRI and PASID consistencyAlex Williamson1-2/+2
These are extended capabilities, rename and move to proper group for consistency. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-01-07PCI/sysfs: add per pci device msi[x] irq listing (v5)Neil Horman2-0/+4
This patch adds a per-pci-device subdirectory in sysfs called: /sys/bus/pci/devices/<device>/msi_irqs This sub-directory exports the set of msi vectors allocated by a given pci device, by creating a numbered sub-directory for each vector beneath msi_irqs. For each vector various attributes can be exported. Currently the only attribute is called mode, which tracks the operational mode of that vector (msi vs. msix) Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-01-06Merge branch 'driver-core-next' into Linux 3.2Greg Kroah-Hartman12-44/+254
This resolves the conflict in the arch/arm/mach-s3c64xx/s3c6400.c file, and it fixes the build error in the arch/x86/kernel/microcode_core.c file, that the merge did not catch. The microcode_core.c patch was provided by Stephen Rothwell <sfr@canb.auug.org.au> who was invaluable in the merge issues involved with the large sysdev removal process in the driver-core tree. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-06Merge branch 'sched-core-for-linus' of ↵Linus Torvalds3-19/+43
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip * 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (40 commits) sched/tracing: Add a new tracepoint for sleeptime sched: Disable scheduler warnings during oopses sched: Fix cgroup movement of waking process sched: Fix cgroup movement of newly created process sched: Fix cgroup movement of forking process sched: Remove cfs bandwidth period check in tg_set_cfs_period() sched: Fix load-balance lock-breaking sched: Replace all_pinned with a generic flags field sched: Only queue remote wakeups when crossing cache boundaries sched: Add missing rcu_dereference() around ->real_parent usage [S390] fix cputime overflow in uptime_proc_show [S390] cputime: add sparse checking and cleanup sched: Mark parent and real_parent as __rcu sched, nohz: Fix missing RCU read lock sched, nohz: Set the NOHZ_BALANCE_KICK flag for idle load balancer sched, nohz: Fix the idle cpu check in nohz_idle_balance sched: Use jump_labels for sched_feat sched/accounting: Fix parameter passing in task_group_account_field sched/accounting: Fix user/system tick double accounting sched/accounting: Re-use scheduler statistics for the root cgroup ... Fix up conflicts in - arch/ia64/include/asm/cputime.h, include/asm-generic/cputime.h usecs_to_cputime64() vs the sparse cleanups - kernel/sched/fair.c, kernel/time/tick-sched.c scheduler changes in multiple branches
2012-01-06Merge branch 'perf-core-for-linus' of ↵Linus Torvalds3-5/+40
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (106 commits) perf kvm: Fix copy & paste error in description perf script: Kill script_spec__delete perf top: Fix a memory leak perf stat: Introduce get_ratio_color() helper perf session: Remove impossible condition check perf tools: Fix feature-bits rework fallout, remove unused variable perf script: Add generic perl handler to process events perf tools: Use for_each_set_bit() to iterate over feature flags perf tools: Unify handling of features when writing feature section perf report: Accept fifos as input file perf tools: Moving code in some files perf tools: Fix out-of-bound access to struct perf_session perf tools: Continue processing header on unknown features perf tools: Improve macros for struct feature_ops perf: builtin-record: Document and check that mmap_pages must be a power of two. perf: builtin-record: Provide advice if mmap'ing fails with EPERM. perf tools: Fix truncated annotation perf script: look up thread using tid instead of pid perf tools: Look up thread names for system wide profiling perf tools: Fix comm for processes with named threads ...
2012-01-06Merge branch 'core-rcu-for-linus' of ↵Linus Torvalds6-80/+163
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (64 commits) cpu: Export cpu_up() rcu: Apply ACCESS_ONCE() to rcu_boost() return value Revert "rcu: Permit rt_mutex_unlock() with irqs disabled" docs: Additional LWN links to RCU API rcu: Augment rcu_batch_end tracing for idle and callback state rcu: Add rcutorture tests for srcu_read_lock_raw() rcu: Make rcutorture test for hotpluggability before offlining CPUs driver-core/cpu: Expose hotpluggability to the rest of the kernel rcu: Remove redundant rcu_cpu_stall_suppress declaration rcu: Adaptive dyntick-idle preparation rcu: Keep invoking callbacks if CPU otherwise idle rcu: Irq nesting is always 0 on rcu_enter_idle_common rcu: Don't check irq nesting from rcu idle entry/exit rcu: Permit dyntick-idle with callbacks pending rcu: Document same-context read-side constraints rcu: Identify dyntick-idle CPUs on first force_quiescent_state() pass rcu: Remove dynticks false positives and RCU failures rcu: Reduce latency of rcu_prepare_for_idle() rcu: Eliminate RCU_FAST_NO_HZ grace-period hang rcu: Avoid needlessly IPIing CPUs at GP end ...
2012-01-06Merge branch 'core-printk-for-linus' of ↵Linus Torvalds1-0/+4
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip * 'core-printk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: printk, lockdep: Switch to tracked irq ops printk, lockdep: Remove superfluous preempt_disable() printk, lockdep: Disable lock debugging on zap_locks()
2012-01-06Merge branch 'core-memblock-for-linus' of ↵Linus Torvalds5-79/+141
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip * 'core-memblock-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (52 commits) memblock: Reimplement memblock allocation using reverse free area iterator memblock: Kill early_node_map[] score: Use HAVE_MEMBLOCK_NODE_MAP s390: Use HAVE_MEMBLOCK_NODE_MAP mips: Use HAVE_MEMBLOCK_NODE_MAP ia64: Use HAVE_MEMBLOCK_NODE_MAP SuperH: Use HAVE_MEMBLOCK_NODE_MAP sparc: Use HAVE_MEMBLOCK_NODE_MAP powerpc: Use HAVE_MEMBLOCK_NODE_MAP memblock: Implement memblock_add_node() memblock: s/memblock_analyze()/memblock_allow_resize()/ and update users memblock: Track total size of regions automatically powerpc: Cleanup memblock usage memblock: Reimplement memblock_enforce_memory_limit() using __memblock_remove() memblock: Make memblock functions handle overflowing range @size memblock: Reimplement __memblock_remove() using memblock_isolate_range() memblock: Separate out memblock_isolate_range() from memblock_set_node() memblock: Kill memblock_init() memblock: Kill sentinel entries at the end of static region arrays memblock: Add __memblock_dump_all() ...
2012-01-06Merge branch 'core-locking-for-linus' of ↵Linus Torvalds1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip * 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: lockdep/waitqueues: Add better annotation lockdep, bug: Exclude TAINT_OOT_MODULE from disabling lock debugging lockdep: Print lock name in lockdep_init_error() init/main.c: Execute lockdep_init() as early as possible lockdep, kmemcheck: Annotate ->lock in lockdep_init_map() lockdep, rtmutex, bug: Show taint flags on error lockdep, bug: Exclude TAINT_FIRMWARE_WORKAROUND from disabling lockdep lockdep: Always try to set ->class_cache in register_lock_class() lockdep_init_map()
2012-01-06Merge branch 'core-debugobjects-for-linus' of ↵Linus Torvalds1-0/+6
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip * 'core-debugobjects-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: timer: Use debugobjects to catch deletion of uninitialized timers timer: Setup uninitialized timer with a stub callback debugobjects: Extend to assert that an object is initialized debugobjects: Be smarter about static objects
2012-01-06watchdog: add nowayout helpers to Watchdog Timer Driver Kernel APIWim Van Sebroeck1-5/+16
Add two nowayout helpers for the Watchdog Timer Driver Kernel API. And apply this to the already converted drivers. Note: s3c2410_wdt lost the nowayout feature during the conversion. Reviewed-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-01-06[media] gspca: Add jl2005bcd sub driverTheodore Kilgore1-0/+1
Written by Theodore Kilgore With minor changes by Hans de Goede: -Code style fixes -Correct the verbose level on various PDEBUG messages -Make error messages use pr_err instead of PDEBUG -Document the jl20 pixel format Signed-off-by: Theodore Kilgore <kilgota@auburn.edu> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>