1. 03 Apr, 2013 1 commit
    • Tony Luck's avatar
      ACPI / BGRT: Don't let users configure BGRT on non X86 systems · e66cd537
      Tony Luck authored
      Fengguang Wu's 0-Day kernel build testing backend found the
      following build error for an allmodconfig build on ia64:
      
         drivers/built-in.o: In function `show_yoffset':
      >> bgrt.c:(.text+0xe5a71): undefined reference to `bgrt_tab'
      >> bgrt.c:(.text+0xe5a91): undefined reference to `bgrt_tab'
         drivers/built-in.o: In function `show_xoffset':
      >> bgrt.c:(.text+0xe5b51): undefined reference to `bgrt_tab'
      >> bgrt.c:(.text+0xe5b71): undefined reference to `bgrt_tab'
         drivers/built-in.o: In function `show_type':
      >> bgrt.c:(.text+0xe5c31): undefined reference to `bgrt_tab'
         drivers/built-in.o:bgrt.c:(.text+0xe5c51): more undefined references to `bgrt_tab' follow
         drivers/built-in.o: In function `bgrt_init':
         bgrt.c:(.init.text+0x8931): undefined reference to `bgrt_image'
         bgrt.c:(.init.text+0x8932): undefined reference to `bgrt_image_size'
         bgrt.c:(.init.text+0x8950): undefined reference to `bgrt_image'
         bgrt.c:(.init.text+0x8960): undefined reference to `bgrt_image_size'
      
      The problem is that all these undefined names are provided by
      arch/x86/platform/efi/efi-bgrt.c - which is obviously not available
      to the ia64 build.
      
      It doesn't seem useful to provide the BGRT support for Itanium
      (many systems are headless and have no graphics at all). So
      just don't let users configure this driver on non-X86 machines.
      Reported-by: default avatarFengguang Wu <fengguang.wu@intel.com>
      Acked-by: default avatarH. Peter Anvin <hpa@zytor.com>
      Signed-off-by: default avatarTony Luck <tony.luck@intel.com>
      Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
      e66cd537
  2. 02 Apr, 2013 2 commits
    • Alex Shi's avatar
      cpuidle / ACPI: recover percpu ACPI processor cstate · 6240a10d
      Alex Shi authored
      Commit ac3ebafa "ACPI / idle: remove usage of the statedata"
      changed the percpu processor cstate to a unified cstate in ACPI idle.
      That caused all our NHM boxes to boot hang or panic.
      
      2178751 Task dump for CPU 1:
      	2178752 swapper/1       R  running task     6736     0      1 0x00000000
      	2178753  ffff8801e8029dc8 ffffffff8101cf96 ffff8801e8029e28 ffffffff813d294b
      	2178754  0000000000000f99 0000000000000003 00000000003cf654 0000000025c17d03
      	2178755  ffff8801e8029e38 ffff8801e74fc000 00000002590dc5c4 ffffffff8163cdb0
      	2178756 Call Trace:
      	2178757  [<ffffffff8101cf96>] ? acpi_processor_ffh_cstate_enter+0x2d/0x2f
      	2178758  [<ffffffff813d294b>] acpi_idle_enter_bm+0x1b1/0x236
      	2178759  [<ffffffff8163cdb0>] ? disable_cpuidle+0x10/0x10
      	2178760  [<ffffffff8163cdc2>] cpuidle_enter+0x12/0x14
      	2178761  [<ffffffff8163d286>] cpuidle_wrap_enter+0x2f/0x6d
      	2178762  [<ffffffff8163d2d4>] cpuidle_enter_tk+0x10/0x12
      	2178763  [<ffffffff8163cdd6>] cpuidle_enter_state+0x12/0x3a
      	2178764  [<ffffffff8163d4a7>] cpuidle_idle_call+0xe8/0x161
      	2178765  [<ffffffff81008d99>] cpu_idle+0x5e/0xa4
      	2178766  [<ffffffff8174c6c1>] start_secondary+0x1a9/0x1ad
      	2178767 Task dump for CPU 2:
      
      In fact, the ACPI idle is based on the assumption of difference percpu
      cstate structures that are necessary for the implementation to work
      cprrectly.  A unique acpi_processor_cx is not sifficient by far.
      
      This patch is just a quick fix re-introducing the percpu cstates.
      
      If someone really wants to unify the ACPI cstates, please make sure
      that the whole software infrastructure is changed and take hardware
      as well as many different kinds of BIOS settings into account.
      
      [rjw: Changelog]
      Reported-by: default avatarLKP project <lkp@linux.intel.com>
      Reported-by: default avatarXie ChanglongX <changlongx.xie@intel.com>
      Tested-by: default avatarYinghai Lu <yinghai@kernel.org>
      Signed-off-by: default avatarAlex Shi <alex.shi@intel.com>
      Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
      6240a10d
    • Rafael J. Wysocki's avatar
      ACPI / I2C: Use parent's ACPI_HANDLE() in acpi_i2c_register_devices() · b34bb1ee
      Rafael J. Wysocki authored
      The ACPI handle of struct i2c_adapter's dev member should not be
      set, because this causes that struct i2c_adapter to be associated
      with the ACPI device node corresponding to its parent as the
      second "physical_device", which is incorrect (this happens during
      the registration of struct i2c_adapter).  Consequently,
      acpi_i2c_register_devices() should use the ACPI handle of the
      parent of the struct i2c_adapter it is called for rather than the
      struct i2c_adapter's ACPI handle (which should be NULL).
      
      Make that happen and modify the i2c-designware-platdrv driver,
      which currently is the only driver for ACPI-enumerated I2C
      controller chips, not to set the ACPI handle for the
      struct i2c_adapter it creates.
      Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
      Reviewed-by: default avatarAaron Lu <aaron.lu@intel.com>
      Acked-by: default avatarMika Westerberg <mika.westerberg@linux.intel.com>
      Acked-by: default avatarWolfram Sang <wsa@the-dreams.de>
      b34bb1ee
  3. 01 Apr, 2013 1 commit
  4. 31 Mar, 2013 5 commits
    • Linus Torvalds's avatar
      Linux 3.9-rc5 · 07961ac7
      Linus Torvalds authored
      07961ac7
    • Linus Torvalds's avatar
      Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma · 0bb44280
      Linus Torvalds authored
      Pull slave-dmaengine fixes from Vinod Koul:
       "Two fixes for slave-dmaengine.
      
        The first one is for making slave_id value correct for dw_dmac and
        the other one fixes the endieness in DT parsing"
      
      * 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
        dw_dmac: adjust slave_id accordingly to request line base
        dmaengine: dw_dma: fix endianess for DT xlate function
      0bb44280
    • Linus Torvalds's avatar
      Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media · a7b436d3
      Linus Torvalds authored
      Pull media fixes from Mauro Carvalho Chehab:
       "For a some fixes for Kernel 3.9:
         - subsystem build fix when VIDEO_DEV=y, VIDEO_V4L2=m and I2C=m
         - compilation fix for arm multiarch preventing IR_RX51 to be selected
         - regression fix at bttv crop logic
         - s5p-mfc/m5mols/exynos: a few fixes for cameras on exynos hardware"
      
      * 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
        [media] [REGRESSION] bt8xx: Fix too large height in cropcap
        [media] fix compilation with both V4L2 and I2C as 'm'
        [media] m5mols: Fix bug in stream on handler
        [media] s5p-fimc: Do not attempt to disable not enabled media pipeline
        [media] s5p-mfc: Fix encoder control 15 issue
        [media] s5p-mfc: Fix frame skip bug
        [media] s5p-fimc: send valid m2m ctx to fimc_m2m_job_finish
        [media] exynos-gsc: send valid m2m ctx to gsc_m2m_job_finish
        [media] fimc-lite: Fix the variable type to avoid possible crash
        [media] fimc-lite: Initialize 'step' field in fimc_lite_ctrl structure
        [media] ir: IR_RX51 only works on OMAP2
      a7b436d3
    • Linus Torvalds's avatar
      Merge tag 'for-linus-20130331' of git://git.kernel.dk/linux-block · d299c290
      Linus Torvalds authored
      Pull block fixes from Jens Axboe:
       "Alright, this time from 10K up in the air.
      
        Collection of fixes that have been queued up since the merge window
        opened, hence postponed until later in the cycle.  The pull request
        contains:
      
         - A bunch of fixes for the xen blk front/back driver.
      
         - A round of fixes for the new IBM RamSan driver, fixing various
           nasty issues.
      
         - Fixes for multiple drives from Wei Yongjun, bad handling of return
           values and wrong pointer math.
      
         - A fix for loop properly killing partitions when being detached."
      
      * tag 'for-linus-20130331' of git://git.kernel.dk/linux-block: (25 commits)
        mg_disk: fix error return code in mg_probe()
        rsxx: remove unused variable
        rsxx: enable error return of rsxx_eeh_save_issued_dmas()
        block: removes dynamic allocation on stack
        Block: blk-flush: Fixed indent code style
        cciss: fix invalid use of sizeof in cciss_find_cfgtables()
        loop: cleanup partitions when detaching loop device
        loop: fix error return code in loop_add()
        mtip32xx: fix error return code in mtip_pci_probe()
        xen-blkfront: remove frame list from blk_shadow
        xen-blkfront: pre-allocate pages for requests
        xen-blkback: don't store dev_bus_addr
        xen-blkfront: switch from llist to list
        xen-blkback: fix foreach_grant_safe to handle empty lists
        xen-blkfront: replace kmalloc and then memcpy with kmemdup
        xen-blkback: fix dispatch_rw_block_io() error path
        rsxx: fix missing unlock on error return in rsxx_eeh_remap_dmas()
        Adding in EEH support to the IBM FlashSystem 70/80 device driver
        block: IBM RamSan 70/80 error message bug fix.
        block: IBM RamSan 70/80 branding changes.
        ...
      d299c290
    • Paul Walmsley's avatar
      Revert "lockdep: check that no locks held at freeze time" · dbf520a9
      Paul Walmsley authored
      This reverts commit 6aa97070.
      
      Commit 6aa97070 ("lockdep: check that no locks held at freeze time")
      causes problems with NFS root filesystems.  The failures were noticed on
      OMAP2 and 3 boards during kernel init:
      
        [ BUG: swapper/0/1 still has locks held! ]
        3.9.0-rc3-00344-ga937536b #1 Not tainted
        -------------------------------------
        1 lock held by swapper/0/1:
         #0:  (&type->s_umount_key#13/1){+.+.+.}, at: [<c011e84c>] sget+0x248/0x574
      
        stack backtrace:
          rpc_wait_bit_killable
          __wait_on_bit
          out_of_line_wait_on_bit
          __rpc_execute
          rpc_run_task
          rpc_call_sync
          nfs_proc_get_root
          nfs_get_root
          nfs_fs_mount_common
          nfs_try_mount
          nfs_fs_mount
          mount_fs
          vfs_kern_mount
          do_mount
          sys_mount
          do_mount_root
          mount_root
          prepare_namespace
          kernel_init_freeable
          kernel_init
      
      Although the rootfs mounts, the system is unstable.  Here's a transcript
      from a PM test:
      
        http://www.pwsan.com/omap/testlogs/test_v3.9-rc3/20130317194234/pm/37xxevm/37xxevm_log.txt
      
      Here's what the test log should look like:
      
        http://www.pwsan.com/omap/testlogs/test_v3.8/20130218214403/pm/37xxevm/37xxevm_log.txt
      
      Mailing list discussion is here:
      
        http://lkml.org/lkml/2013/3/4/221
      
      Deal with this for v3.9 by reverting the problem commit, until folks can
      figure out the right long-term course of action.
      Signed-off-by: default avatarPaul Walmsley <paul@pwsan.com>
      Cc: Mandeep Singh Baines <msb@chromium.org>
      Cc: Jeff Layton <jlayton@redhat.com>
      Cc: Shawn Guo <shawn.guo@linaro.org>
      Cc: <maciej.rutecki@gmail.com>
      Cc: Fengguang Wu <fengguang.wu@intel.com>
      Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: Ben Chan <benchan@chromium.org>
      Cc: Oleg Nesterov <oleg@redhat.com>
      Cc: Tejun Heo <tj@kernel.org>
      Cc: Rafael J. Wysocki <rjw@sisk.pl>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      dbf520a9
  5. 30 Mar, 2013 1 commit
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending · 13d2080d
      Linus Torvalds authored
      Pull SCSI target fixes from Nicholas Bellinger:
       "This includes the bug-fix for a >= v3.8-rc1 regression specific to
        iscsi-target persistent reservation conflict handling (CC'ed to
        stable), and a tcm_vhost patch to drop VIRTIO_RING_F_EVENT_IDX usage
        so that in-flight qemu vhost-scsi-pci device code can detect the
        proper vhost feature bits.
      
        Also, there are two more tcm_vhost patches still being discussed by
        MST and Asias for v3.9 that will be required for the in-flight qemu
        vhost-scsi-pci device patch to function properly, and that should
        (hopefully) be the last target fixes for this round."
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
        target: Fix RESERVATION_CONFLICT status regression for iscsi-target special case
        tcm_vhost: Avoid VIRTIO_RING_F_EVENT_IDX feature bit
      13d2080d
  6. 29 Mar, 2013 12 commits
  7. 28 Mar, 2013 18 commits