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2015-10-06word-at-a-time.h: fix some Kbuild filesChris Metcalf1-0/+1
arch/tile added word-at-a-time.h after the patch that added generic-y entries; the generic-y entry is now stale. arch/h8300 is newer than the generic-y patch for word-at-a-time.h, and needs a generic-y entry. arch/powerpc seems to have gotten a generic-y entry by mistake in the first patch; this change removes it. Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com>
2015-09-10dma-mapping: consolidate dma_set_maskChristoph Hellwig1-5/+0
Almost everyone implements dma_set_mask the same way, although some time that's hidden in ->set_dma_mask methods. This patch consolidates those into a common implementation that either calls ->set_dma_mask if present or otherwise uses the default implementation. Some architectures used to only call ->set_dma_mask after the initial checks, and those instance have been fixed to do the full work. h8300 implemented dma_set_mask bogusly as a no-ops and has been fixed. Unfortunately some architectures overload unrelated semantics like changing the dma_ops into it so we still need to allow for an architecture override for now. [jcmvbkbc@gmail.com: fix xtensa] Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Russell King <linux@arm.linux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Michal Simek <monstr@monstr.eu> Cc: Jonas Bonn <jonas@southpole.se> Cc: Chris Metcalf <cmetcalf@ezchip.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-09-10dma-mapping: consolidate dma_supportedChristoph Hellwig1-5/+0
Most architectures just call into ->dma_supported, but some also return 1 if the method is not present, or 0 if no dma ops are present (although that should never happeb). Consolidate this more broad version into common code. Also fix h8300 which inorrectly always returned 0, which would have been a problem if it's dma_set_mask implementation wasn't a similarly buggy noop. As a few architectures have much more elaborate implementations, we still allow for arch overrides. [jcmvbkbc@gmail.com: fix xtensa] Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Russell King <linux@arm.linux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Michal Simek <monstr@monstr.eu> Cc: Jonas Bonn <jonas@southpole.se> Cc: Chris Metcalf <cmetcalf@ezchip.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-09-10dma-mapping: cosolidate dma_mapping_errorChristoph Hellwig1-5/+0
Currently there are three valid implementations of dma_mapping_error: (1) call ->mapping_error (2) check for a hardcoded error code (3) always return 0 This patch provides a common implementation that calls ->mapping_error if present, then checks for DMA_ERROR_CODE if defined or otherwise returns 0. [jcmvbkbc@gmail.com: fix xtensa] Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Russell King <linux@arm.linux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Michal Simek <monstr@monstr.eu> Cc: Jonas Bonn <jonas@southpole.se> Cc: Chris Metcalf <cmetcalf@ezchip.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-09-10dma-mapping: consolidate dma_{alloc,free}_noncoherentChristoph Hellwig1-3/+0
Most architectures do not support non-coherent allocations and either define dma_{alloc,free}_noncoherent to their coherent versions or stub them out. Openrisc uses dma_{alloc,free}_attrs to implement them, and only Mips implements them directly. This patch moves the Openrisc version to common code, and handles the DMA_ATTR_NON_CONSISTENT case in the mips dma_map_ops instance. Note that actual non-coherent allocations require a dma_cache_sync implementation, so if non-coherent allocations didn't work on an architecture before this patch they still won't work after it. [jcmvbkbc@gmail.com: fix xtensa] Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Russell King <linux@arm.linux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Michal Simek <monstr@monstr.eu> Cc: Jonas Bonn <jonas@southpole.se> Cc: Chris Metcalf <cmetcalf@ezchip.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-09-10dma-mapping: consolidate dma_{alloc,free}_{attrs,coherent}Christoph Hellwig1-26/+0
Since 2009 we have a nice asm-generic header implementing lots of DMA API functions for architectures using struct dma_map_ops, but unfortunately it's still missing a lot of APIs that all architectures still have to duplicate. This series consolidates the remaining functions, although we still need arch opt outs for two of them as a few architectures have very non-standard implementations. This patch (of 5): The coherent DMA allocator works the same over all architectures supporting dma_map operations. This patch consolidates them and converges the minor differences: - the debug_dma helpers are now called from all architectures, including those that were previously missing them - dma_alloc_from_coherent and dma_release_from_coherent are now always called from the generic alloc/free routines instead of the ops dma-mapping-common.h always includes dma-coherent.h to get the defintions for them, or the stubs if the architecture doesn't support this feature - checks for ->alloc / ->free presence are removed. There is only one magic instead of dma_map_ops without them (mic_dma_ops) and that one is x86 only anyway. Besides that only x86 needs special treatment to replace a default devices if none is passed and tweak the gfp_flags. An optional arch hook is provided for that. [linux@roeck-us.net: fix build] [jcmvbkbc@gmail.com: fix xtensa] Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Russell King <linux@arm.linux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Michal Simek <monstr@monstr.eu> Cc: Jonas Bonn <jonas@southpole.se> Cc: Chris Metcalf <cmetcalf@ezchip.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-09-10lib/decompressors: use real out buf size for gunzip with kernelYinghai Lu1-1/+1
When loading x86 64bit kernel above 4GiB with patched grub2, got kernel gunzip error. | early console in decompress_kernel | decompress_kernel: | input: [0x807f2143b4-0x807ff61aee] | output: [0x807cc00000-0x807f3ea29b] 0x027ea29c: output_len | boot via startup_64 | KASLR using RDTSC... | new output: [0x46fe000000-0x470138cfff] 0x0338d000: output_run_size | decompress: [0x46fe000000-0x47007ea29b] <=== [0x807f2143b4-0x807ff61aee] | | Decompressing Linux... gz... | | uncompression error | | -- System halted the new buffer is at 0x46fe000000ULL, decompressor_gzip is using 0xffffffb901ffffff as out_len. gunzip in lib/zlib_inflate/inflate.c cap that len to 0x01ffffff and decompress fails later. We could hit this problem with crashkernel booting that uses kexec loading kernel above 4GiB. We have decompress_* support: 1. inbuf[]/outbuf[] for kernel preboot. 2. inbuf[]/flush() for initramfs 3. fill()/flush() for initrd. This bug only affect kernel preboot path that use outbuf[]. Add __decompress and take real out_buf_len for gunzip instead of guessing wrong buf size. Fixes: 1431574a1c4 (lib/decompressors: fix "no limit" output buffer length) Signed-off-by: Yinghai Lu <yinghai@kernel.org> Cc: Alexandre Courbot <acourbot@nvidia.com> Cc: Jon Medhurst <tixy@linaro.org> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-07-27atomic: Collapse all atomic_{set,clear}_mask definitionsPeter Zijlstra1-10/+0
Move the now generic definitions of atomic_{set,clear}_mask() into linux/atomic.h to avoid endless and pointless repetition. Also, provide an atomic_andnot() wrapper for those few archs that can implement that. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-07-27atomic: Provide atomic_{or,xor,and}Peter Zijlstra1-2/+0
Implement atomic logic ops -- atomic_{or,xor,and}. These will replace the atomic_{set,clear}_mask functions that are available on some archs. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-07-27h8300: Provide atomic_{or,xor,and}Peter Zijlstra1-95/+40
Implement atomic logic ops -- atomic_{or,xor,and} These will replace the atomic_{set,clear}_mask functions that are available on some archs. Also rework the atomic implementation in terms of CPP macros to avoid the typical repetition -- I seem to have missed this arch the last time around when I did that. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-07-18mm: clean up per architecture MM hook header filesLaurent Dufour1-0/+1
Commit 2ae416b142b6 ("mm: new mm hook framework") introduced an empty header file (mm-arch-hooks.h) for every architecture, even those which doesn't need to define mm hooks. As suggested by Geert Uytterhoeven, this could be cleaned through the use of a generic header file included via each per architecture asm/include/Kbuild file. The PowerPC architecture is not impacted here since this architecture has to defined the arch_remap MM hook. Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com> Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Vineet Gupta <vgupta@synopsys.com> Cc: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-23h8300: Always build dtbYoshinori Sato1-1/+2
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
2015-06-23h8300: Remove ARCH_WANT_IPC_PARSE_VERSIONYoshinori Sato1-1/+0
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
2015-06-23h8300: Symbol name fixYoshinori Sato1-1/+1
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
2015-06-23h8300: devicetree sourceYoshinori Sato4-0/+313
- h8300h_sim: GDB H8/300H simulator - h8s_sim: GDB H8S simulator - edosk2674: Renesas EDOSK2674R Evalution board Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
2015-06-23h8300: configsYoshinori Sato3-0/+147
h8300h-sim_defconfig: GDB simulator H8/300H mode. h8s-sim_defconfig: GDB simulator H8S mode. edosk2674_defconfig: Renesas EDOSK2674R. Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
2015-06-23h8300: Build scriptsYoshinori Sato5-0/+317
h8300's Makefile, Kconfig and memory layout. Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
2015-06-23h8300: library functionsYoshinori Sato16-0/+723
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
2015-06-23h8300: Memory managementYoshinori Sato4-0/+243
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
2015-06-23h8300: miscellaneous functionsYoshinori Sato6-0/+335
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
2015-06-23h8300: process helpersYoshinori Sato4-0/+674
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
2015-06-23h8300: compressed image supportYoshinori Sato6-0/+226
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
2015-06-23h8300: Low level entryYoshinori Sato3-0/+584
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
2015-06-23h8300: kernel startupYoshinori Sato1-0/+255
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
2015-06-23h8300: Interrupt and exceptionsYoshinori Sato3-0/+547
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
2015-06-23h8300: UAPI headersYoshinori Sato6-0/+214
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
2015-06-23h8300: Assembly headersYoshinori Sato32-0/+1605
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
2013-09-17Drop support for Renesas H8/300 (h8300) architectureGuenter Roeck176-10878/+0
H8/300 has been dead for several years, and the kernel for it has not compiled for ages. Drop support for it. Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-09-13Remove GENERIC_HARDIRQ config optionMartin Schwidefsky1-1/+0
After the last architecture switched to generic hard irqs the config options HAVE_GENERIC_HARDIRQS & GENERIC_HARDIRQS and the related code for !CONFIG_GENERIC_HARDIRQS can be removed. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-07-11net: rename busy poll socket op and globalsEliezer Tamir1-1/+1
Rename LL_SO to BUSY_POLL_SO Rename sysctl_net_ll_{read,poll} to sysctl_busy_{read,poll} Fix up users of these variables. Fix documentation for sysctl. a patch for the socket.7 man page will follow separately, because of limitations of my mail setup. Signed-off-by: Eliezer Tamir <eliezer.tamir@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-07-10Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds1-0/+2
Pull networking updates from David Miller: "This is a re-do of the net-next pull request for the current merge window. The only difference from the one I made the other day is that this has Eliezer's interface renames and the timeout handling changes made based upon your feedback, as well as a few bug fixes that have trickeled in. Highlights: 1) Low latency device polling, eliminating the cost of interrupt handling and context switches. Allows direct polling of a network device from socket operations, such as recvmsg() and poll(). Currently ixgbe, mlx4, and bnx2x support this feature. Full high level description, performance numbers, and design in commit 0a4db187a999 ("Merge branch 'll_poll'") From Eliezer Tamir. 2) With the routing cache removed, ip_check_mc_rcu() gets exercised more than ever before in the case where we have lots of multicast addresses. Use a hash table instead of a simple linked list, from Eric Dumazet. 3) Add driver for Atheros CQA98xx 802.11ac wireless devices, from Bartosz Markowski, Janusz Dziedzic, Kalle Valo, Marek Kwaczynski, Marek Puzyniak, Michal Kazior, and Sujith Manoharan. 4) Support reporting the TUN device persist flag to userspace, from Pavel Emelyanov. 5) Allow controlling network device VF link state using netlink, from Rony Efraim. 6) Support GRE tunneling in openvswitch, from Pravin B Shelar. 7) Adjust SOCK_MIN_RCVBUF and SOCK_MIN_SNDBUF for modern times, from Daniel Borkmann and Eric Dumazet. 8) Allow controlling of TCP quickack behavior on a per-route basis, from Cong Wang. 9) Several bug fixes and improvements to vxlan from Stephen Hemminger, Pravin B Shelar, and Mike Rapoport. In particular, support receiving on multiple UDP ports. 10) Major cleanups, particular in the area of debugging and cookie lifetime handline, to the SCTP protocol code. From Daniel Borkmann. 11) Allow packets to cross network namespaces when traversing tunnel devices. From Nicolas Dichtel. 12) Allow monitoring netlink traffic via AF_PACKET sockets, in a manner akin to how we monitor real network traffic via ptype_all. From Daniel Borkmann. 13) Several bug fixes and improvements for the new alx device driver, from Johannes Berg. 14) Fix scalability issues in the netem packet scheduler's time queue, by using an rbtree. From Eric Dumazet. 15) Several bug fixes in TCP loss recovery handling, from Yuchung Cheng. 16) Add support for GSO segmentation of MPLS packets, from Simon Horman. 17) Make network notifiers have a real data type for the opaque pointer that's passed into them. Use this to properly handle network device flag changes in arp_netdev_event(). From Jiri Pirko and Timo Teräs. 18) Convert several drivers over to module_pci_driver(), from Peter Huewe. 19) tcp_fixup_rcvbuf() can loop 500 times over loopback, just use a O(1) calculation instead. From Eric Dumazet. 20) Support setting of explicit tunnel peer addresses in ipv6, just like ipv4. From Nicolas Dichtel. 21) Protect x86 BPF JIT against spraying attacks, from Eric Dumazet. 22) Prevent a single high rate flow from overruning an individual cpu during RX packet processing via selective flow shedding. From Willem de Bruijn. 23) Don't use spinlocks in TCP md5 signing fast paths, from Eric Dumazet. 24) Don't just drop GSO packets which are above the TBF scheduler's burst limit, chop them up so they are in-bounds instead. Also from Eric Dumazet. 25) VLAN offloads are missed when configured on top of a bridge, fix from Vlad Yasevich. 26) Support IPV6 in ping sockets. From Lorenzo Colitti. 27) Receive flow steering targets should be updated at poll() time too, from David Majnemer. 28) Fix several corner case regressions in PMTU/redirect handling due to the routing cache removal, from Timo Teräs. 29) We have to be mindful of ipv4 mapped ipv6 sockets in upd_v6_push_pending_frames(). From Hannes Frederic Sowa. 30) Fix L2TP sequence number handling bugs, from James Chapman." * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1214 commits) drivers/net: caif: fix wrong rtnl_is_locked() usage drivers/net: enic: release rtnl_lock on error-path vhost-net: fix use-after-free in vhost_net_flush net: mv643xx_eth: do not use port number as platform device id net: sctp: confirm route during forward progress virtio_net: fix race in RX VQ processing virtio: support unlocked queue poll net/cadence/macb: fix bug/typo in extracting gem_irq_read_clear bit Documentation: Fix references to defunct linux-net@vger.kernel.org net/fs: change busy poll time accounting net: rename low latency sockets functions to busy poll bridge: fix some kernel warning in multicast timer sfc: Fix memory leak when discarding scattered packets sit: fix tunnel update via netlink dt:net:stmmac: Add dt specific phy reset callback support. dt:net:stmmac: Add support to dwmac version 3.610 and 3.710 dt:net:stmmac: Allocate platform data only if its NULL. net:stmmac: fix memleak in the open method ipv6: rt6_check_neigh should successfully verify neigh if no NUD information are available net: ipv6: fix wrong ping_v6_sendmsg return value ...
2013-07-04Merge branch 'akpm' (updates from Andrew Morton)Linus Torvalds3-33/+14
Merge first patch-bomb from Andrew Morton: - various misc bits - I'm been patchmonkeying ocfs2 for a while, as Joel and Mark have been distracted. There has been quite a bit of activity. - About half the MM queue - Some backlight bits - Various lib/ updates - checkpatch updates - zillions more little rtc patches - ptrace - signals - exec - procfs - rapidio - nbd - aoe - pps - memstick - tools/testing/selftests updates * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (445 commits) tools/testing/selftests: don't assume the x bit is set on scripts selftests: add .gitignore for kcmp selftests: fix clean target in kcmp Makefile selftests: add .gitignore for vm selftests: add hugetlbfstest self-test: fix make clean selftests: exit 1 on failure kernel/resource.c: remove the unneeded assignment in function __find_resource aio: fix wrong comment in aio_complete() drivers/w1/slaves/w1_ds2408.c: add magic sequence to disable P0 test mode drivers/memstick/host/r592.c: convert to module_pci_driver drivers/memstick/host/jmb38x_ms: convert to module_pci_driver pps-gpio: add device-tree binding and support drivers/pps/clients/pps-gpio.c: convert to module_platform_driver drivers/pps/clients/pps-gpio.c: convert to devm_* helpers drivers/parport/share.c: use kzalloc Documentation/accounting/getdelays.c: avoid strncpy in accounting tool aoe: update internal version number to v83 aoe: update copyright date aoe: perform I/O completions in parallel ...
2013-07-04mm/h8300: prepare for removing num_physpages and simplify mem_init()Jiang Liu1-28/+8
Prepare for removing num_physpages and simplify mem_init(). Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-07-04h8300: normalize global variables exported by vmlinux.ldsJiang Liu2-1/+2
Generate mandatory global variables __bss_start/__bss_stop in file vmlinux.lds. Also remove one unused declaration of _text. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Jiang Liu <jiang.liu@huawei.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-07-04mm: concentrate modification of totalram_pages into the mm coreJiang Liu1-1/+1
Concentrate code to modify totalram_pages into the mm core, so the arch memory initialized code doesn't need to take care of it. With these changes applied, only following functions from mm core modify global variable totalram_pages: free_bootmem_late(), free_all_bootmem(), free_all_bootmem_node(), adjust_managed_page_count(). With this patch applied, it will be much more easier for us to keep totalram_pages and zone->managed_pages in consistence. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Acked-by: David Howells <dhowells@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: "Michael S. Tsirkin" <mst@redhat.com> Cc: <sworddragon2@aol.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Cc: Jianguo Wu <wujianguo@huawei.com> Cc: Joonsoo Kim <js1304@gmail.com> Cc: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: Michel Lespinasse <walken@google.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Rik van Riel <riel@redhat.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Tang Chen <tangchen@cn.fujitsu.com> Cc: Tejun Heo <tj@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Wen Congyang <wency@cn.fujitsu.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-07-04mm: enhance free_reserved_area() to support poisoning memory with zeroJiang Liu1-2/+2
Address more review comments from last round of code review. 1) Enhance free_reserved_area() to support poisoning freed memory with pattern '0'. This could be used to get rid of poison_init_mem() on ARM64. 2) A previous patch has disabled memory poison for initmem on s390 by mistake, so restore to the original behavior. 3) Remove redundant PAGE_ALIGN() when calling free_reserved_area(). Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: "Michael S. Tsirkin" <mst@redhat.com> Cc: <sworddragon2@aol.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: David Howells <dhowells@redhat.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Cc: Jianguo Wu <wujianguo@huawei.com> Cc: Joonsoo Kim <js1304@gmail.com> Cc: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: Michel Lespinasse <walken@google.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Rik van Riel <riel@redhat.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Tang Chen <tangchen@cn.fujitsu.com> Cc: Tejun Heo <tj@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Wen Congyang <wency@cn.fujitsu.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-07-04mm: change signature of free_reserved_area() to fix building warningsJiang Liu1-1/+1
Change signature of free_reserved_area() according to Russell King's suggestion to fix following build warnings: arch/arm/mm/init.c: In function 'mem_init': arch/arm/mm/init.c:603:2: warning: passing argument 1 of 'free_reserved_area' makes integer from pointer without a cast [enabled by default] free_reserved_area(__va(PHYS_PFN_OFFSET), swapper_pg_dir, 0, NULL); ^ In file included from include/linux/mman.h:4:0, from arch/arm/mm/init.c:15: include/linux/mm.h:1301:22: note: expected 'long unsigned int' but argument is of type 'void *' extern unsigned long free_reserved_area(unsigned long start, unsigned long end, mm/page_alloc.c: In function 'free_reserved_area': >> mm/page_alloc.c:5134:3: warning: passing argument 1 of 'virt_to_phys' makes pointer from integer without a cast [enabled by default] In file included from arch/mips/include/asm/page.h:49:0, from include/linux/mmzone.h:20, from include/linux/gfp.h:4, from include/linux/mm.h:8, from mm/page_alloc.c:18: arch/mips/include/asm/io.h:119:29: note: expected 'const volatile void *' but argument is of type 'long unsigned int' mm/page_alloc.c: In function 'free_area_init_nodes': mm/page_alloc.c:5030:34: warning: array subscript is below array bounds [-Warray-bounds] Also address some minor code review comments. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Reported-by: Arnd Bergmann <arnd@arndb.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: "Michael S. Tsirkin" <mst@redhat.com> Cc: <sworddragon2@aol.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: David Howells <dhowells@redhat.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Cc: Jianguo Wu <wujianguo@huawei.com> Cc: Joonsoo Kim <js1304@gmail.com> Cc: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: Michel Lespinasse <walken@google.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Rik van Riel <riel@redhat.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Tang Chen <tangchen@cn.fujitsu.com> Cc: Tejun Heo <tj@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Wen Congyang <wency@cn.fujitsu.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-07-03Merge branch 'exotic-arch-fixes' of ↵Linus Torvalds20-586/+459
git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k Pull "exotic" arch fixes from Geert Uytterhoeven: "This is a collection of several exotic architecture fixes, and a few other fixes for issues that were detected while doing the former" * 'exotic-arch-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: (35 commits) lib: Move fonts from drivers/video/console/ to lib/fonts/ console/font: Refactor font support code selection logic Revert "staging/solo6x10: depend on CONFIG_FONTS" input: cros_ec_keyb_clear_keyboard() depends on CONFIG_PM_SLEEP score: Wire up asm-generic/xor.h score: Remove unneeded <asm/dma-mapping.h> openrisc: Wire up asm-generic/xor.h h8300/boot: Use POSIX "$((..))" instead of bashism "$[...]" h8300: Mark H83002 and H83048 CPU support broken h8300: Switch h8300 to drivers/Kconfig h8300: Limit timer channel ranges in Kconfig h8300: Wire up asm-generic/xor.h h8300: Fill the system call table using a CALL() macro h8300: Fix <asm/tlb.h> h8300: Hardcode symbol prefixes in asm sources h8300: add missing definition for read_barries_depends() frv: head.S - Remove commented-out initialization code cris: Wire up asm-generic/vga.h parport: disable PC-style parallel port support on cris console: Disable VGA text console support on cris ...
2013-06-29consolidate io_remap_pfn_range definitionsAl Viro1-3/+0
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-06-23h8300/boot: Use POSIX "$((..))" instead of bashism "$[...]"Geert Uytterhoeven1-1/+1
On Ubuntu, where /bin/sh -> dash, "make ARCH=h8300 clean" gives: printf: 1: $[0x00400000+0x00140000]: expected numeric value Replace the bash-specific "$[...]" by POSIX "$((..))" for arithmetic expansion to fix this. Note that according to the bash 4.1 manpage, "$[...]" is deprecated, and will be removed in upcoming versions of bash. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2013-06-23h8300: Mark H83002 and H83048 CPU support brokenGeert Uytterhoeven1-0/+2
arch/h8300/include/asm/io.h supports only H83007 (H8/3006,3007), H83068 (H8/3065,3066,3067,3068,3069), and H8S2678 (H8S/2670,2673,2674R,2675,2676) CPU types. Hence disable H83002 (H8/3001,3002,3003) and H83048 (H8/3044,3045,3046,3047,3048,3052) CPU support at the Kconfig level. This fixes build failures in allmodconfig/allyesconfig builds, as these always choose the first CPU type (H83002), which was unsupported: arch/h8300/include/asm/io.h:13:2: error: #error UNKNOWN CPU TYPE Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2013-06-23h8300: Switch h8300 to drivers/KconfigGeert Uytterhoeven1-117/+1
Convert the last remaining architecture to drivers/Kconfig. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2013-06-23h8300: Limit timer channel ranges in KconfigGeert Uytterhoeven1-0/+2
arch/h8300/kernel/timer/itu.c and arch/h8300/kernel/timer/tpu.c only support 0--4 for CONFIG_H8300_ITU_CH resp. H8300_TPU_CH, hence limit them to that range in Kconfig. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2013-06-23h8300: Wire up asm-generic/xor.hGeert Uytterhoeven1-0/+1
crypto/xor.c:25:21: fatal error: asm/xor.h: No such file or directory Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2013-06-23h8300: Fill the system call table using a CALL() macroGeert Uytterhoeven1-320/+322
The CALL() macro abstracts (a.o.) the underscore symbol prefix. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2013-06-23h8300: Fix <asm/tlb.h>Geert Uytterhoeven1-15/+0
Ten years ago, a mismerge happened, concatenating two slightly different versions of the same file. As a consequence, <asm-generic/tlb.h> was never included, leading to a build failure only now: kernel/cpu/idle.c: In function 'cpu_idle_loop': kernel/cpu/idle.c:70:4: error: implicit declaration of function 'check_pgt_cache' [-Werror=implicit-function-declaration] Remove the duplicates, and the header comment with the no longer correct file name. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Yoshinori Sato <ysato@users.sourceforge.jp>
2013-06-23h8300: Hardcode symbol prefixes in asm sourcesGeert Uytterhoeven15-453/+448
Commit e1b5bb6d1236d4ad2084c53aa83dde7cdf6f8eea ("consolidate cond_syscall and SYSCALL_ALIAS declarations") broke the h8300 build because it removed the duplicate SYMBOL_NAME() macro from arch/h8300/include/asm/linkage.h, and all the h8300 asm files include <asm/linkage.h> instead of <linux/linkage.h>: arch/h8300/kernel/entry.S: Assembler messages: arch/h8300/kernel/entry.S:158: Error: junk at end of line, first unrecognized character is `(' ... arch/h8300/kernel/syscalls.S: Assembler messages: arch/h8300/kernel/syscalls.S:6: Error: junk at end of line, first unrecognized character is `(' ... arch/h8300/lib/abs.S: Assembler messages: arch/h8300/lib/abs.S:12: Error: junk at end of line, first unrecognized character is `(' ... arch/h8300/lib/memcpy.S: Assembler messages: arch/h8300/lib/memcpy.S:13: Error: junk at end of line, first unrecognized character is `(' ... arch/h8300/lib/memset.S: Assembler messages: arch/h8300/lib/memset.S:13: Error: junk at end of line, first unrecognized character is `(' ... Commit 126de6b20bfb82cc19012d5048f11f339ae5a021 ("linkage.h: fix build breakage due to symbol prefix handling") broke it even more, by removing SYMBOL_NAME() and replacing it by __SYMBOL_NAME(). Commit f8ce1faf55955de62e0a12e330c6d9a526071f65 ("Merge tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linuxkernel/git/rusty/linux") also removed __SYMBOL_NAME(), hidden in a merge conflict resolution. Hence, replace the use of SYMBOL_NAME() and SYMBOL_NAME_LABEL() in h8300 assembler sources by hardcoding the underscore symbol prefix, like other architectures (blackfin/metag) do. This allows to kill SYMBOL_NAME_LABEL(). Now <asm/linkage.h> becomes empty, and h8300 can be switched to asm-generic/linkage.h. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2013-06-18net: add socket option for low latency pollingEliezer Tamir1-0/+2
adds a socket option for low latency polling. This allows overriding the global sysctl value with a per-socket one. Unexport sysctl_net_ll_poll since for now it's not needed in modules. Signed-off-by: Eliezer Tamir <eliezer.tamir@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-16h8300: add missing definition for read_barries_depends()Jiang Liu1-0/+2
Add missing definition for read_barries_depends() for h8300 to fix error: kernel/task_work.c: In function 'task_work_cancel': kernel/task_work.c:38:3: error: implicit declaration of function 'read_barrier_depends' [-Werror=implicit-function-declaration] cc1: some warnings being treated as errors make[1]: *** [kernel/task_work.o] Error 1 make: *** [kernel] Error 2 Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: David Howells <dhowells@redhat.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: linux-kernel@vger.kernel.org Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
2013-05-05Merge tag 'modules-next-for-linus' of ↵Linus Torvalds1-4/+1
git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux Pull mudule updates from Rusty Russell: "We get rid of the general module prefix confusion with a binary config option, fix a remove/insert race which Never Happens, and (my favorite) handle the case when we have too many modules for a single commandline. Seriously, the kernel is full, please go away!" * tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: modpost: fix unwanted VMLINUX_SYMBOL_STR expansion X.509: Support parse long form of length octets in Authority Key Identifier module: don't unlink the module until we've removed all exposure. kernel: kallsyms: memory override issue, need check destination buffer length MODSIGN: do not send garbage to stderr when enabling modules signature modpost: handle huge numbers of modules. modpost: add -T option to read module names from file/stdin. modpost: minor cleanup. genksyms: pass symbol-prefix instead of arch module: fix symbol versioning with symbol prefixes CONFIG_SYMBOL_PREFIX: cleanup.
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