1. 20 Feb, 2013 7 commits
  2. 01 Feb, 2013 2 commits
  3. 31 Jan, 2013 12 commits
    • Linus Torvalds's avatar
      Merge branch 'for-3.8/upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid · cf5425bf
      Linus Torvalds authored
      PullHID fixes from Jiri Kosina:
      
       - fix i2c-hid and hidraw interaction, by Benjamin Tissoires
      
       - a quirk to make a particular device (Formosa IR receiver) work
         properly, by Nicholas Santos
      
      * 'for-3.8/upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
        HID: i2c-hid: fix i2c_hid_output_raw_report
        HID: usbhid: quirk for Formosa IR receiver
        HID: remove x bit from sensor doc
      cf5425bf
    • Linus Torvalds's avatar
      Merge tag 'nfs-for-3.8-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs · bf6c8a81
      Linus Torvalds authored
      Pull NFS client bugfixes from Trond Myklebust:
      
       - Error reporting in nfs_xdev_mount incorrectly maps all errors to
         ENOMEM
      
       - Fix an NFSv4 refcounting issue
      
       - Fix a mount failure when the server reboots during NFSv4 trunking
         discovery
      
       - NFSv4.1 mounts may need to run the lease recovery thread.
      
       - Don't silently fail setattr() requests on mountpoints
      
       - Fix a SUNRPC socket/transport livelock and priority queue issue
      
       - We must handle NFS4ERR_DELAY when resetting the NFSv4.1 session.
      
      * tag 'nfs-for-3.8-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
        NFSv4.1: Handle NFS4ERR_DELAY when resetting the NFSv4.1 session
        SUNRPC: When changing the queue priority, ensure that we change the owner
        NFS: Don't silently fail setattr() requests on mountpoints
        NFSv4.1: Ensure that nfs41_walk_client_list() does start lease recovery
        NFSv4: Fix NFSv4 trunking discovery
        NFSv4: Fix NFSv4 reference counting for trunked sessions
        NFS: Fix error reporting in nfs_xdev_mount
      bf6c8a81
    • Linus Torvalds's avatar
      Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus · aeb8eede
      Linus Torvalds authored
      Pull MIPS updates from Ralf Baechle:
       "A number of fixes all across the MIPS tree.  No area is particularly
        standing out and things have cooled down quite nicely for a release."
      
      * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
        MIPS: Function tracer: Fix broken function tracing
        mips: Move __virt_addr_valid() to a place for MIPS 64
        MIPS: Netlogic: Fix UP compilation on XLR
        MIPS: AR71xx: Fix AR71XX_PCI_MEM_SIZE
        MIPS: AR724x: Fix AR724X_PCI_MEM_SIZE
        MIPS: Lantiq: Fix cp0_perfcount_irq mapping
        MIPS: DSP: Fix DSP mask for registers.
        MIPS: Fix build failure by adding definition of pfn_pmd().
        MIPS: Octeon: Fix warning.
        MIPS: delay.c: Check BITS_PER_LONG instead of __SIZEOF_LONG__
        MIPS: PNX833x: Fix comment.
        MIPS: Add struct p_format to union mips_instruction.
        MIPS: Export <asm/break.h>.
        MIPS: BCM47xx: Enable SSB prerequisite SSB_DRIVER_PCICORE.
        MIPS: BCM47xx: Select GPIOLIB for BCMA on bcm47xx platform
        MIPS: vpe.c: Fix null pointer dereference in print arguments.
      aeb8eede
    • Benjamin Tissoires's avatar
      HID: i2c-hid: fix i2c_hid_output_raw_report · c284979a
      Benjamin Tissoires authored
      
      
      i2c_hid_output_raw_report is used by hidraw to forward set_report requests.
      The current implementation of i2c_hid_set_report needs to take the
      report_id as an argument. The report_id is stored in the first byte
      of the buffer in argument of i2c_hid_output_raw_report.
      
      Not removing the report_id from the given buffer adds this byte 2 times
      in the command, leading to a non working command.
      Reported-by: default avatarAndrew Duggan <aduggan@synaptics.com>
      Signed-off-by: Benjamin Tissoires's avatarBenjamin Tissoires <benjamin.tissoires@gmail.com>
      Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
      c284979a
    • Al Cooper's avatar
      MIPS: Function tracer: Fix broken function tracing · 58b69401
      Al Cooper authored
      Function tracing is currently broken for all 32 bit MIPS platforms.
      When tracing is enabled, the kernel immediately hangs on boot.
      This is a result of commit b732d439
      
      
      that changes the kernel/trace/Kconfig file so that is no longer
      forces FRAME_POINTER when FUNCTION_TRACING is enabled.
      
      MIPS frame pointers are generally considered to be useless because
      they cannot be used to unwind the stack. Unfortunately the MIPS
      function tracing code has bugs that are masked by the use of frame
      pointers. This commit fixes the bugs so that MIPS frame pointers
      don't need to be enabled.
      
      The bugs are a result of the odd calling sequence used to call the trace
      routine. This calling sequence is inserted into every traceable function
      when the tracing CONFIG option is enabled. This sequence is generated
      for 32bit MIPS platforms by the compiler via the "-pg" flag.
      
      Part of the sequence is "addiu sp,sp,-8" in the delay slot after every
      call to the trace routine "_mcount" (some legacy thing where 2 arguments
      used to be pushed on the stack). The _mcount routine is expected to
      adjust the sp by +8 before returning.  So when not disabled, the original
      jalr and addiu will be there, so _mcount has to adjust sp.
      
      The problem is that when tracing is disabled for a function, the
      "jalr _mcount" instruction is replaced with a nop, but the
      "addiu sp,sp,-8" is still executed and the stack pointer is left
      trashed. When frame pointers are enabled the problem is masked
      because any access to the stack is done through the frame
      pointer and the stack pointer is restored from the frame pointer when
      the function returns.
      
      This patch writes two nops starting at the address of the "jalr _mcount"
      instruction whenever tracing is disabled. This means that the
      "addiu sp,sp.-8" will be converted to a nop along with the "jalr".  When
      disabled, there will be two nops.
      
      This is SMP safe because the first time this happens is during
      ftrace_init() which is before any other processor has been started.
      Subsequent calls to enable/disable tracing when other CPUs ARE running
      will still be safe because the enable will only change the first nop
      to a "jalr" and the disable, while writing 2 nops, will only be changing
      the "jalr". This patch also stops using stop_machine() to call the
      tracer enable/disable routines and calls them directly because the
      routines are SMP safe.
      
      When the kernel first boots we have to be able to handle the gcc
      generated jalr, addui sequence until ftrace_init gets a chance to run
      and change the sequence. At this point mcount just adjusts the stack
      and returns. When ftrace_init runs, we convert the jalr/addui to nops.
      Then whenever tracing is enabled we convert the first nop to a "jalr
      mcount+8". The mcount+8 entry point skips the stack adjust.
      
      [ralf@linux-mips.org: Folded in  Steven Rostedt's build fix.]
      Signed-off-by: default avatarAl Cooper <alcooperx@gmail.com>
      Cc: rostedt@goodmis.org
      Cc: ddaney.cavm@gmail.com
      Cc: linux-mips@linux-mips.org
      Cc: linux-kernel@vger.kernel.org
      Patchwork: https://patchwork.linux-mips.org/patch/4806/
      Patchwork: https://patchwork.linux-mips.org/patch/4841/
      
      Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
      58b69401
    • Alasdair G Kergon's avatar
      dm: fix write same requests counting · fe7af2d3
      Alasdair G Kergon authored
      When processing write same requests, fix dm to send the configured
      number of WRITE SAME requests to the target rather than the number of
      discards, which is not always the same.
      
      Device-mapper WRITE SAME support was introduced by commit
      23508a96
      
       ("dm: add WRITE SAME support").
      Signed-off-by: default avatarAlasdair G Kergon <agk@redhat.com>
      Acked-by: default avatarMike Snitzer <snitzer@redhat.com>
      fe7af2d3
    • Steven Rostedt's avatar
      mips: Move __virt_addr_valid() to a place for MIPS 64 · 196897a2
      Steven Rostedt authored
      Commit d3ce8843
      
       "MIPS: Fix modpost error in modules attepting to use
      virt_addr_valid()" moved __virt_addr_valid() from a macro in a header
      file to a function in ioremap.c. But ioremap.c is only compiled for MIPS
      32, and not for MIPS 64.
      
      When compiling for my yeeloong2, which supposedly supports hibernation,
      which compiles kernel/power/snapshot.c which calls virt_addr_valid(), I
      got this error:
      
        LD      init/built-in.o
      kernel/built-in.o: In function `memory_bm_free':
      snapshot.c:(.text+0x4c9c4): undefined reference to `__virt_addr_valid'
      snapshot.c:(.text+0x4ca58): undefined reference to `__virt_addr_valid'
      kernel/built-in.o: In function `snapshot_write_next':
      (.text+0x4e44c): undefined reference to `__virt_addr_valid'
      kernel/built-in.o: In function `snapshot_write_next':
      (.text+0x4e890): undefined reference to `__virt_addr_valid'
      make[1]: *** [vmlinux] Error 1
      make: *** [sub-make] Error 2
      
      I suspect that __virt_addr_valid() is fine for mips 64. I moved it to
      mmap.c such that it gets compiled for mips 64 and 32.
      Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
      Cc: linux-kernel@vger.kernel.org
      Cc: linux-mips@linux-mips.org
      Patchwork: https://patchwork.linux-mips.org/patch/4842/
      
      Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
      196897a2
    • Mike Snitzer's avatar
      dm thin: fix queue limits stacking · 0f640dca
      Mike Snitzer authored
      thin_io_hints() is blindly copying the queue limits from the thin-pool
      which can lead to incorrect limits being set.  The fix here simply
      deletes the thin_io_hints() hook which leaves the existing stacking
      infrastructure to set the limits correctly.
      
      When a thin-pool uses an MD device for the data device a thin device
      from the thin-pool must respect MD's constraints about disallowing a bio
      from spanning multiple chunks.  Otherwise we can see problems.  If the raid0
      chunksize is 1152K and thin-pool chunksize is 256K I see the following
      md/raid0 error (with extra debug tracing added to thin_endio) when
      mkfs.xfs is executed against the thin device:
      
      md/raid0:md99: make_request bug: can't convert block across chunks or bigger than 1152k 6688 127
      device-mapper: thin: bio sector=2080 err=-5 bi_size=130560 bi_rw=17 bi_vcnt=32 bi_idx=0
      
      This extra DM debugging shows that the failing bio is spanning across
      the first and second logical 1152K chunk (sector 2080 + 255 takes the
      bio beyond the first chunk's boundary of sector 2304).  So the bio
      splitting that DM is doing clearly isn't respecting the MD limits.
      
      max_hw_sectors_kb is 127 for both the thin-pool and thin device
      (queue_max_hw_sectors returns 255 so we'll excuse sysfs's lack of
      precision).  So this explains why bi_size is 130560.
      
      But the thin device's max_hw_sectors_kb should be 4 (PAGE_SIZE) given
      that it doesn't have a .merge function (for bio_add_page to consult
      indirectly via dm_merge_bvec) yet the thin-pool does sit above an MD
      device that has a compulsory merge_bvec_fn.  This scenario is exactly
      why DM must resort to sending single PAGE_SIZE bios to the underlying
      layer. Some additional context for this is available in the header for
      commit 8cbeb67a
      
       ("dm: avoid unsupported spanning of md stripe boundaries").
      
      Long story short, the reason a thin device doesn't properly get
      configured to have a max_hw_sectors_kb of 4 (PAGE_SIZE) is that
      thin_io_hints() is blindly copying the queue limits from the thin-pool
      device directly to the thin device's queue limits.
      
      Fix this by eliminating thin_io_hints.  Doing so is safe because the
      block layer's queue limits stacking already enables the upper level thin
      device to inherit the thin-pool device's discard and minimum_io_size and
      optimal_io_size limits that get set in pool_io_hints.  But avoiding the
      queue limits copy allows the thin and thin-pool limits to be different
      where it is important, namely max_hw_sectors_kb.
      Reported-by: default avatarDaniel Browning <db@kavod.com>
      Signed-off-by: default avatarMike Snitzer <snitzer@redhat.com>
      Cc: stable@vger.kernel.org
      Signed-off-by: default avatarAlasdair G Kergon <agk@redhat.com>
      0f640dca
    • Linus Torvalds's avatar
      Merge branch 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 04c2eee5
      Linus Torvalds authored
      Pull x86 EFI fixes from Peter Anvin:
       "This is a collection of fixes for the EFI support.  The controversial
        bit here is a set of patches which bumps the boot protocol version as
        part of fixing some serious problems with the EFI handover protocol,
        used when booting under EFI using a bootloader as opposed to directly
        from EFI.  These changes should also make it a lot saner to support
        cross-mode 32/64-bit EFI booting in the future.  Getting these changes
        into 3.8 means we avoid presenting an inconsistent ABI to bootloaders.
      
        Other changes are display detection and fixing efivarfs."
      
      * 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86, efi: remove attribute check from setup_efi_pci
        x86, build: Dynamically find entry points in compressed startup code
        x86, efi: Fix PCI ROM handing in EFI boot stub, in 32-bit mode
        x86, efi: Fix 32-bit EFI handover protocol entry point
        x86, efi: Fix display detection in EFI boot stub
        x86, boot: Define the 2.12 bzImage boot protocol
        x86/boot: Fix minor fd leakage in tools/relocs.c
        x86, efi: Set runtime_version to the EFI spec revision
        x86, efi: fix 32-bit warnings in setup_efi_pci()
        efivarfs: Delete dentry from dcache in efivarfs_file_write()
        efivarfs: Never return ENOENT from firmware
        efi, x86: Pass a proper identity mapping in efi_call_phys_prelog
        efivarfs: Drop link count of the right inode
      04c2eee5
    • Linus Torvalds's avatar
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · bdb0ae6a
      Linus Torvalds authored
      Pull x86 fixes from Peter Anvin:
       "This is a collection of miscellaneous fixes, the most important one is
        the fix for the Samsung laptop bricking issue (auto-blacklisting the
        samsung-laptop driver); the efi_enabled() changes you see below are
        prerequisites for that fix.
      
        The other issues fixed are booting on OLPC XO-1.5, an UV fix, NMI
        debugging, and requiring CAP_SYS_RAWIO for MSR references, just as
        with I/O port references."
      
      * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        samsung-laptop: Disable on EFI hardware
        efi: Make 'efi_enabled' a function to query EFI facilities
        smp: Fix SMP function call empty cpu mask race
        x86/msr: Add capabilities check
        x86/dma-debug: Bump PREALLOC_DMA_DEBUG_ENTRIES
        x86/olpc: Fix olpc-xo1-sci.c build errors
        arch/x86/platform/uv: Fix incorrect tlb flush all issue
        x86-64: Fix unwind annotations in recent NMI changes
        x86-32: Start out cr0 clean, disable paging before modifying cr3/4
      bdb0ae6a
    • Linus Torvalds's avatar
      Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux · 0fe94b9e
      Linus Torvalds authored
      Pull console lockdep checking revert from Dave Airlie.
      
      The lockdep splat this showed was interesting, but it's very very old,
      and we won't be fixing it until 3.9.  In the meantime, undo the lockdep
      annotation so that we don't generate the (known) console lockdep issue,
      and then possibly hide any potential other (unknown) lockdep problems
      that got disabled by the first one that triggered.
      
      * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
        Revert "console: implement lockdep support for console_lock"
      0fe94b9e
    • Dave Airlie's avatar
      Revert "console: implement lockdep support for console_lock" · ff0d05bf
      Dave Airlie authored
      This reverts commit daee7797
      
      .
      
      I'll requeue this after the console locking fixes, so lockdep
      is useful again for people until fbcon is fixed.
      Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
      ff0d05bf
  4. 30 Jan, 2013 18 commits
    • Trond Myklebust's avatar
      NFSv4.1: Handle NFS4ERR_DELAY when resetting the NFSv4.1 session · c489ee29
      Trond Myklebust authored
      
      
      NFS4ERR_DELAY is a legal reply when we call DESTROY_SESSION. It
      usually means that the server is busy handling an unfinished RPC
      request. Just sleep for a second and then retry.
      We also need to be able to handle the NFS4ERR_BACK_CHAN_BUSY return
      value. If the NFS server has outstanding callbacks, we just want to
      similarly sleep & retry.
      Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
      Cc: stable@vger.kernel.org
      c489ee29
    • Trond Myklebust's avatar
      SUNRPC: When changing the queue priority, ensure that we change the owner · edd2e36f
      Trond Myklebust authored
      This fixes a livelock in the xprt->sending queue where we end up never
      making progress on lower priority tasks because sleep_on_priority()
      keeps adding new tasks with the same owner to the head of the queue,
      and priority bumps mean that we keep resetting the queue->owner to
      whatever task is at the head of the queue.
      
      Regression introduced by commit c05eecf6
      
      
      (SUNRPC: Don't allow low priority tasks to pre-empt higher priority ones).
      Reported-by: default avatarAndy Adamson <andros@netapp.com>
      Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
      edd2e36f
    • H. Peter Anvin's avatar
      Merge tag 'efi-for-3.8' into x86/efi · becbd660
      H. Peter Anvin authored
      
      
      Various urgent EFI fixes and some warning cleanups for v3.8
      
        * EFI boot stub fix for Macbook Pro's from Maarten Lankhorst
        * Fix an oops in efivarfs from Lingzhu Xiang
        * 32-bit warning cleanups from Jan Beulich
        * Patch to Boot on >512GB RAM systems from Nathan Zimmer
        * Set efi.runtime_version correctly
        * efivarfs updates
      Signed-off-by: default avatarH. Peter Anvin <hpa@linux.intel.com>
      becbd660
    • Trond Myklebust's avatar
      NFS: Don't silently fail setattr() requests on mountpoints · ab225417
      Trond Myklebust authored
      Ensure that any setattr and getattr requests for junctions and/or
      mountpoints are sent to the server. Ever since commit
      0ec26fd0
      
       (vfs: automount should ignore LOOKUP_FOLLOW), we have
      silently dropped any setattr requests to a server-side mountpoint.
      For referrals, we have silently dropped both getattr and setattr
      requests.
      
      This patch restores the original behaviour for setattr on mountpoints,
      and tries to do the same for referrals, provided that we have a
      filehandle...
      Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
      Cc: stable@vger.kernel.org
      ab225417
    • Jayachandran C's avatar
      MIPS: Netlogic: Fix UP compilation on XLR · 26f5ae86
      Jayachandran C authored
      The commit 2a37b1ae
      
       "MIPS: Netlogic: Move from u32 cpumask to cpumask_t"
      breaks uniprocessor compilation on XLR with:
      
      arch/mips/netlogic/xlr/setup.c: In function 'prom_init':
      arch/mips/netlogic/xlr/setup.c:196:6: error: unused variable 'i'
      
      Fix by defining 'i' only when CONFIG_SMP is defined.
      Signed-off-by: default avatarJayachandran C <jchandra@broadcom.com>
      Patchwork: http://patchwork.linux-mips.org/patch/4760/
      
      Signed-off-by: default avatarJohn Crispin <blogic@openwrt.org>
      Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
      26f5ae86
    • Gabor Juhos's avatar
      MIPS: AR71xx: Fix AR71XX_PCI_MEM_SIZE · fe950df7
      Gabor Juhos authored
      
      
      The base address of the PCI memory is 0x10000000 and the base address of the
      PCI configuration space is 0x17000000 on the AR71xx SoCs.
      
      The AR71XX_PCI_MEM_SIZE is defined as 0x08000000 which is wrong because that
      overlaps with the configuration space.  This patch fixes the value of the
      AR71XX_PCI_MEM_SIZE constant, in order to avoid this resource conflicts.
      Signed-off-by: default avatarGabor Juhos <juhosg@openwrt.org>
      Patchwork: http://patchwork.linux-mips.org/patch/4873/
      
      Signed-off-by: default avatarJohn Crispin <blogic@openwrt.org>
      Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
      fe950df7
    • Gabor Juhos's avatar
      MIPS: AR724x: Fix AR724X_PCI_MEM_SIZE · 4c960910
      Gabor Juhos authored
      
      
      The base address of the PCI memory is
      0x10000000 and the base address of the
      PCI configuration space is 0x14000000
      on the AR724x SoCs.
      
      The AR724X_PCI_MEM_SIZE is defined as
      0x08000000 which is wrong because that
      overlaps  with the configuration space.
      
      The patch fixes the value of the
      AR724X_PCI_MEM_SIZE constant, in order
      to avoid this resource conflicts.
      Signed-off-by: default avatarGabor Juhos <juhosg@openwrt.org>
      Patchwork: http://patchwork.linux-mips.org/patch/4872/
      
      Signed-off-by: default avatarJohn Crispin <blogic@openwrt.org>
      Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
      4c960910
    • John Crispin's avatar
      MIPS: Lantiq: Fix cp0_perfcount_irq mapping · 79d61a04
      John Crispin authored
      The introduction of the OF support broke the cp0_perfcount_irq mapping. This
      resulted in oprofile not working anymore.
      
      Offending commit is :
      
      commit 3645da02
      
      
      Author: John Crispin <blogic@openwrt.org>
      Date:   Tue Apr 17 10:18:32 2012 +0200
      
      OF: MIPS: lantiq: implement irq_domain support
      Signed-off-by: default avatarConor O'Gorman <i@conorogorman.net>
      Signed-off-by: default avatarJohn Crispin <blogic@openwrt.org>
      Cc: linux-mips@linux-mips.org
      Patchwork: https://patchwork.linux-mips.org/patch/4875/
      
      Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
      79d61a04
    • Matt Fleming's avatar
      samsung-laptop: Disable on EFI hardware · e0094244
      Matt Fleming authored
      It has been reported that running this driver on some Samsung laptops
      with EFI can cause those machines to become bricked as detailed in the
      following report,
      
      	https://bugs.launchpad.net/ubuntu-cdimage/+bug/1040557
      
      There have also been reports of this driver causing Machine Check
      Exceptions on recent EFI-enabled Samsung laptops,
      
      	https://bugzilla.kernel.org/show_bug.cgi?id=47121
      
      
      
      So disable it if booting from EFI since this driver relies on
      grovelling around in the BIOS memory map which isn't going to work.
      
      Cc: Corentin Chary <corentincj@iksaif.net>
      Cc: Matthew Garrett <mjg59@srcf.ucam.org>
      Cc: Colin Ian King <colin.king@canonical.com>
      Cc: Steve Langasek <steve.langasek@canonical.com>
      Cc: <stable@vger.kernel.org>
      Signed-off-by: default avatarMatt Fleming <matt.fleming@intel.com>
      Signed-off-by: default avatarH. Peter Anvin <hpa@linux.intel.com>
      e0094244
    • Matt Fleming's avatar
      efi: Make 'efi_enabled' a function to query EFI facilities · 83e68189
      Matt Fleming authored
      Originally 'efi_enabled' indicated whether a kernel was booted from
      EFI firmware. Over time its semantics have changed, and it now
      indicates whether or not we are booted on an EFI machine with
      bit-native firmware, e.g. 64-bit kernel with 64-bit firmware.
      
      The immediate motivation for this patch is the bug report at,
      
          https://bugs.launchpad.net/ubuntu-cdimage/+bug/1040557
      
      which details how running a platform driver on an EFI machine that is
      designed to run under BIOS can cause the machine to become
      bricked. Also, the following report,
      
          https://bugzilla.kernel.org/show_bug.cgi?id=47121
      
      
      
      details how running said driver can also cause Machine Check
      Exceptions. Drivers need a new means of detecting whether they're
      running on an EFI machine, as sadly the expression,
      
          if (!efi_enabled)
      
      hasn't been a sufficient condition for quite some time.
      
      Users actually want to query 'efi_enabled' for different reasons -
      what they really want access to is the list of available EFI
      facilities.
      
      For instance, the x86 reboot code needs to know whether it can invoke
      the ResetSystem() function provided by the EFI runtime services, while
      the ACPI OSL code wants to know whether the EFI config tables were
      mapped successfully. There are also checks in some of the platform
      driver code to simply see if they're running on an EFI machine (which
      would make it a bad idea to do BIOS-y things).
      
      This patch is a prereq for the samsung-laptop fix patch.
      
      Cc: David Airlie <airlied@linux.ie>
      Cc: Corentin Chary <corentincj@iksaif.net>
      Cc: Matthew Garrett <mjg59@srcf.ucam.org>
      Cc: Dave Jiang <dave.jiang@intel.com>
      Cc: Olof Johansson <olof@lixom.net>
      Cc: Peter Jones <pjones@redhat.com>
      Cc: Colin Ian King <colin.king@canonical.com>
      Cc: Steve Langasek <steve.langasek@canonical.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad@kernel.org>
      Cc: Rafael J. Wysocki <rjw@sisk.pl>
      Cc: <stable@vger.kernel.org>
      Signed-off-by: default avatarMatt Fleming <matt.fleming@intel.com>
      Signed-off-by: default avatarH. Peter Anvin <hpa@linux.intel.com>
      83e68189
    • Linus Torvalds's avatar
      Merge tag 'edac_for_3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp · a56e1600
      Linus Torvalds authored
      Pull EDAC fixlets from Borislav Petkov:
       "Two minor correctness fixlets from Dan Carpenter and Joe Perches each."
      
      * tag 'edac_for_3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
        EDAC: Fix kcalloc argument order
        EDAC: Test correct variable in ->store function
      a56e1600
    • Linus Torvalds's avatar
      Merge tag 'sound-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound · 58ff603b
      Linus Torvalds authored
      Pull sound fixes from Takashi Iwai:
      
       - A collection of small ASoC driver fixes (error path fixes, register
         correction, regulator bypass mode fix, etc)
      
       - A few regression fixes and quirks of HD-audio (wrong page attributes
         for SG-buffer, Poulsbo/Oaktrail controller fix, digital mic fix for
         Acer, etc)
      
       - A fix for USB-audio UAC2 devices wrt FU length check
      
      * tag 'sound-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
        ALSA: hda - Fix non-snoop page handling
        ALSA: hda - Enable LPIB delay count for Poulsbo / Oaktrail
        ALSA: hda - fix inverted internal mic on Acer AOA150/ZG5
        ALSA: usb-audio: fix invalid length check for RME and other UAC 2 devices
        ALSA: hda - Add a fixup for Packard-Bell desktop with ALC880
        ASoC: wm_adsp: Release firmware on error
        ASoC: wm_adsp: Use GFP_DMA for things that may be DMAed
        ASoC: arizona: Use actual rather than desired BCLK when calculating LRCLK
        ASoC: wm2200: correct mixer values and text
        ASoC: MAINTAINERS: Update email address.
        ASoC: wm5110: Correct AEC loopback mask
        ASoC: wm5102: Correct AEC loopback mask
        ASoC: dapm: Fix sense of regulator bypass mode
        ASoC: fsl: fix multiple definition of init_module
        ASoC: arizona: Disable free-running mode on FLL1
      58ff603b
    • Joe Perches's avatar
      EDAC: Fix kcalloc argument order · d3d09e18
      Joe Perches authored
      
      
      First number, then size.
      Signed-off-by: default avatarJoe Perches <joe@perches.com>
      Cc: <stable@vger.kernel.org>
      Signed-off-by: default avatarBorislav Petkov <bp@suse.de>
      d3d09e18
    • Dan Carpenter's avatar
      EDAC: Test correct variable in ->store function · 8024c4c0
      Dan Carpenter authored
      
      
      We're testing for ->show but calling ->store().
      Signed-off-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
      Cc: stable@vger.kernel.org
      Signed-off-by: default avatarBorislav Petkov <bp@suse.de>
      8024c4c0
    • Linus Torvalds's avatar
      Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux · 2e51b231
      Linus Torvalds authored
      Pull drm fixes from Dave Airlie:
       "Intel, radeon and exynos fixes.  Nothing too major or wierd: one dmar
        fix and a radeon cursor corruption, along with misc exynos fixes."
      
      * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (21 commits)
        drm/exynos: add check for the device power status
        drm/exynos: Make 'drm_hdmi_get_edid' static
        drm/exynos: fimd and ipp are broken on multiplatform
        drm/exynos: don't include plat/gpio-cfg.h
        drm/exynos: Remove "internal" interrupt handling
        drm/exynos: Add missing static specifiers in exynos_drm_rotator.c
        drm/exynos: Replace mdelay with usleep_range
        drm/exynos: Make ipp_handle_cmd_work static
        drm/exynos: Make g2d_userptr_get_dma_addr static
        drm/exynos: consider DMA_NONE flag to dmabuf import
        drm/exynos: free sg object if dma_map_sg is failed
        drm/exynos: added validation of edid for vidi connection
        drm/exynos: let drm handle edid allocations
        drm/radeon: Enable DMA_IB_SWAP_ENABLE on big endian hosts.
        drm/radeon: fix a rare case of double kfree
        radeon_display: Use pointer return error codes
        drm/radeon: fix cursor corruption on DCE6 and newer
        drm/i915: dump UTS_RELEASE into the error_state
        iommu/intel: disable DMAR for g4x integrated gfx
        drm/i915: GFX_MODE Flush TLB Invalidate Mode must be '1' for scanline waits
        ...
      2e51b231
    • Linus Torvalds's avatar
      Merge tag 'for-linus-v3.8-rc6' of git://oss.sgi.com/xfs/xfs · f96736e1
      Linus Torvalds authored
      Pull xfs bugfixes from Ben Myers:
       "Here are fixes for returning EFSCORRUPTED on probe of a non-xfs
        filesystem, the stack switch in xfs_bmapi_allocate, a crash in
        _xfs_buf_find, speculative preallocation as the filesystem nears
        ENOSPC, an unmount hang, a race with AIO, and a regression with
        xfs_fsr:
      
         - fix return value when filesystem probe finds no XFS magic, a
           regression introduced in 98021821.
      
         - fix stack switch in __xfs_bmapi_allocate by moving the check for
           stack switch up into xfs_bmapi_write.
      
         - fix oops in _xfs_buf_find by validating that the requested block is
           within the filesystem bounds.
      
         - limit speculative preallocation near ENOSPC.
      
         - fix an unmount hang in xfs_wait_buftarg by freeing the
           xfs_buf_log_item in xfs_buf_item_unlock.
      
         - fix a possible use after free with AIO.
      
         - fix xfs_swap_extents after removal of xfs_flushinval_pages, a
           regression introduced in commit fb595814."
      
      * tag 'for-linus-v3.8-rc6' of git://oss.sgi.com/xfs/xfs:
        xfs: Fix xfs_swap_extents() after removal of xfs_flushinval_pages()
        xfs: Fix possible use-after-free with AIO
        xfs: fix shutdown hang on invalid inode during create
        xfs: limit speculative prealloc near ENOSPC thresholds
        xfs: fix _xfs_buf_find oops on blocks beyond the filesystem end
        xfs: pull up stack_switch check into xfs_bmapi_write
        xfs: Do not return EFSCORRUPTED when filesystem probe finds no XFS magic
      f96736e1
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux · 8e5d573a
      Linus Torvalds authored
      Pull one s390 fix from Martin Schwidefsky:
       "Another transparent huge page fix, we need to define a s390 variant
        for pmdp_set_wrprotect to flush the TLB for the huge page correctly."
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
        s390/thp: implement pmdp_set_wrprotect()
      8e5d573a
    • Linus Torvalds's avatar
      Merge tag 'pinctrl-fixes-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl · d6a3bf93
      Linus Torvalds authored
      Pull pinctrl fixes from Linus Walleij:
       "This is a late pinctrl fix pull request, we had to revert out the
        pinctrl-single GPIO backend, because of, well, design issues.  We're
        cooking a better thing for the next cycle.
      
         - Revert gpio request/free backend, new patch set in the works, will
           be for v3.9.  Get this old cruft out before anyone hurts himself on
           it.
         - Kconfig buzz
         - Various compile warnings
         - MPP6 value for the Kirkwood"
      
      * tag 'pinctrl-fixes-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
        pinctrl: nomadik: nmk_prcm_gpiocr_get_mode may be unused
        pinctrl: exynos: don't mark probing functions as __init
        Revert "pinctrl: single: support gpio request and free"
        pinctrl: mvebu: fix MPP6 value for kirkwood driver
        pinctrl: mvebu: Fix compiler warnings
        pinctrl: pinctrl-mxs: Fix variables' definition type
        pinctrl: samsung: removing duplicated condition for PINCTRL_SAMSUNG
      d6a3bf93
  5. 29 Jan, 2013 1 commit
    • Arnd Bergmann's avatar
      pinctrl: nomadik: nmk_prcm_gpiocr_get_mode may be unused · 0fafd50e
      Arnd Bergmann authored and Linus Walleij's avatar Linus Walleij committed
      
      
      nmk_prcm_gpiocr_get_mode is only needed for debugfs output at
      the moment, which can be compile-time disabled. Marking
      the function __maybe_unused still gives us compile-time
      coverage, but avoids a gcc warning.
      
      Without this patch, building nhk8815_defconfig results in:
      
      drivers/pinctrl/pinctrl-nomadik.c:676:12: warning: 'nmk_prcm_gpiocr_get_mode' defined but not used [-Wunused-function]
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      Cc: Jean-Nicolas Graux <jean-nicolas.graux@stericsson.com>
      Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
      Signed-off-by: Linus Walleij's avatarLinus Walleij <linus.walleij@linaro.org>
      0fafd50e