1. 13 Nov, 2015 17 commits
    • Linus Torvalds's avatar
      Merge branch 'for-linus-3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs · 5d2eb548
      Linus Torvalds authored
      Pull vfs xattr cleanups from Al Viro.
      
      * 'for-linus-3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
        f2fs: xattr simplifications
        squashfs: xattr simplifications
        9p: xattr simplifications
        xattr handlers: Pass handler to operations instead of flags
        jffs2: Add missing capability check for listing trusted xattrs
        hfsplus: Remove unused xattr handler list operations
        ubifs: Remove unused security xattr handler
        vfs: Fix the posix_acl_xattr_list return value
        vfs: Check attribute names in posix acl xattr handers
      5d2eb548
    • Linus Torvalds's avatar
      Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm · 2870f6c4
      Linus Torvalds authored
      Pull libnvdimm fixes from Dan Williams:
      
       - three fixes tagged for -stable including a crash fix, simple
         performance tweak, and an invalid i/o error.
      
       - build regression fix for the nvdimm unit tests
      
       - nvdimm documentation update
      
      * 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
        dax: fix __dax_pmd_fault crash
        libnvdimm: documentation clarifications
        libnvdimm, pmem: fix size trim in pmem_direct_access()
        libnvdimm, e820: fix numa node for e820-type-12 pmem ranges
        tools/testing/nvdimm, acpica: fix flag rename build breakage
      2870f6c4
    • Andreas Gruenbacher's avatar
      f2fs: xattr simplifications · 29608d20
      Andreas Gruenbacher authored
      Now that the xattr handler is passed to the xattr handler operations, we
      have access to the attribute name prefix, so simplify
      f2fs_xattr_generic_list.
      
      Also, f2fs_xattr_advise_list is only ever called for
      f2fs_xattr_advise_handler; there is no need to double check for that.
      Signed-off-by: default avatarAndreas Gruenbacher <agruenba@redhat.com>
      Cc: Jaegeuk Kim <jaegeuk@kernel.org>
      Cc: Changman Lee <cm224.lee@samsung.com>
      Cc: Chao Yu <chao2.yu@samsung.com>
      Cc: linux-f2fs-devel@lists.sourceforge.net
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      29608d20
    • Andreas Gruenbacher's avatar
      squashfs: xattr simplifications · 0ddaf72c
      Andreas Gruenbacher authored
      Now that the xattr handler is passed to the xattr handler operations, we
      have access to the attribute name prefix, so simplify the squashfs xattr
      handlers a bit.
      Signed-off-by: default avatarAndreas Gruenbacher <agruenba@redhat.com>
      Cc: Phillip Lougher <phillip@squashfs.org.uk>
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      0ddaf72c
    • Andreas Gruenbacher's avatar
      9p: xattr simplifications · e409de99
      Andreas Gruenbacher authored
      Now that the xattr handler is passed to the xattr handler operations, we
      can use the same get and set operations for the user, trusted, and security
      xattr namespaces.  In those namespaces, we can access the full attribute
      name by "reattaching" the name prefix the vfs has skipped for us.  Add a
      xattr_full_name helper to make this obvious in the code.
      
      For the "system.posix_acl_access" and "system.posix_acl_default"
      attributes, handler->prefix is the full attribute name; the suffix is the
      empty string.
      Signed-off-by: default avatarAndreas Gruenbacher <agruenba@redhat.com>
      Cc: Eric Van Hensbergen <ericvh@gmail.com>
      Cc: Ron Minnich <rminnich@sandia.gov>
      Cc: Latchesar Ionkov <lucho@ionkov.net>
      Cc: v9fs-developer@lists.sourceforge.net
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      e409de99
    • Andreas Gruenbacher's avatar
      xattr handlers: Pass handler to operations instead of flags · d9a82a04
      Andreas Gruenbacher authored
      The xattr_handler operations are currently all passed a file system
      specific flags value which the operations can use to disambiguate between
      different handlers; some file systems use that to distinguish the xattr
      namespace, for example.  In some oprations, it would be useful to also have
      access to the handler prefix.  To allow that, pass a pointer to the handler
      to operations instead of the flags value alone.
      Signed-off-by: default avatarAndreas Gruenbacher <agruenba@redhat.com>
      Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      d9a82a04
    • Andreas Gruenbacher's avatar
      jffs2: Add missing capability check for listing trusted xattrs · bf781714
      Andreas Gruenbacher authored
      The vfs checks if a task has the appropriate access for get and set
      operations, but it cannot do that for the list operation; the file system
      must check for that itself.
      Signed-off-by: default avatarAndreas Gruenbacher <agruenba@redhat.com>
      Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
      Cc: David Woodhouse <dwmw2@infradead.org>
      Cc: linux-mtd@lists.infradead.org
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      bf781714
    • Andreas Gruenbacher's avatar
      hfsplus: Remove unused xattr handler list operations · e282fb7f
      Andreas Gruenbacher authored
      The list operations can never be called; they are even documented to be
      unused.
      Signed-off-by: default avatarAndreas Gruenbacher <agruenba@redhat.com>
      Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      e282fb7f
    • Andreas Gruenbacher's avatar
      ubifs: Remove unused security xattr handler · 13d3408f
      Andreas Gruenbacher authored
      Ubifs installs a security xattr handler in sb->s_xattr but doesn't use the
      generic_{get,set,list,remove}xattr inode operations needed for processing
      this list of attribute handlers; the handler is never called.  Instead,
      ubifs uses its own xattr handlers which also process security xattrs.
      
      Remove the dead code.
      Signed-off-by: default avatarAndreas Gruenbacher <agruenba@redhat.com>
      Reviewed-by: default avatarRichard Weinberger <richard@nod.at>
      Cc: Artem Bityutskiy <dedekind1@gmail.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: linux-mtd@lists.infradead.org
      Cc: Subodh Nijsure <snijsure@grid-net.com>
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      13d3408f
    • Andreas Gruenbacher's avatar
      vfs: Fix the posix_acl_xattr_list return value · dae5f57a
      Andreas Gruenbacher authored
      When a filesystem that contains POSIX ACLs is mounted without ACL support
      (-o noacl), the appropriate behavior is not to list any existing POSIX ACL
      xattrs.  The return value for list xattr handlers in this case is 0, not an
      error code: several filesystems that use the POSIX ACL xattr handlers do
      not expect the list operation to fail.
      
      Symlinks cannot have ACLs, so posix_acl_xattr_list will never be called for
      symlinks in the first place.
      Signed-off-by: default avatarAndreas Gruenbacher <agruenba@redhat.com>
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      dae5f57a
    • Andreas Gruenbacher's avatar
      vfs: Check attribute names in posix acl xattr handers · c361016a
      Andreas Gruenbacher authored
      The get and set operations of the POSIX ACL xattr handlers failed to check
      the attribute names, so all names with "system.posix_acl_access" or
      "system.posix_acl_default" as a prefix were accepted.  Reject invalid names
      from now on.
      Signed-off-by: default avatarAndreas Gruenbacher <agruenba@redhat.com>
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      c361016a
    • Linus Torvalds's avatar
      Merge tag 'vfio-v4.4-rc1' of git://github.com/awilliam/linux-vfio · 934f98d7
      Linus Torvalds authored
      Pull VFIO updates from Alex Williamson:
       - Use kernel interfaces for VPD emulation (Alex Williamson)
       - Platform fix for releasing IRQs (Eric Auger)
       - Type1 IOMMU always advertises PAGE_SIZE support when smaller mapping
         sizes are available (Eric Auger)
       - Platform fixes for incorrectly using copies of structures rather than
         pointers to structures (James Morse)
       - Rework platform reset modules, fix leak, and add AMD xgbe reset
         module (Eric Auger)
       - Fix vfio_device_get_from_name() return value (Joerg Roedel)
       - No-IOMMU interface (Alex Williamson)
       - Fix potential out of bounds array access in PCI config handling (Dan
         Carpenter)
      
      * tag 'vfio-v4.4-rc1' of git://github.com/awilliam/linux-vfio:
        vfio/pci: make an array larger
        vfio: Include No-IOMMU mode
        vfio: Fix bug in vfio_device_get_from_name()
        VFIO: platform: reset: AMD xgbe reset module
        vfio: platform: reset: calxedaxgmac: fix ioaddr leak
        vfio: platform: add dev_info on device reset
        vfio: platform: use list of registered reset function
        vfio: platform: add compat in vfio_platform_device
        vfio: platform: reset: calxedaxgmac: add reset function registration
        vfio: platform: introduce module_vfio_reset_handler macro
        vfio: platform: add capability to register a reset function
        vfio: platform: introduce vfio-platform-base module
        vfio/platform: store mapped memory in region, instead of an on-stack copy
        vfio/type1: handle case where IOMMU does not support PAGE_SIZE size
        VFIO: platform: clear IRQ_NOAUTOEN when de-assigning the IRQ
        vfio/pci: Use kernel VPD access functions
        vfio: Whitelist PCI bridges
      934f98d7
    • Linus Torvalds's avatar
      Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6 · f3996e6a
      Linus Torvalds authored
      Pull SMB3 updates from Steve French:
       "A collection of SMB3 patches adding some reliability features
        (persistent and resilient handles) and improving SMB3 copy offload.
      
        I will have some additional patches for SMB3 encryption and SMB3.1.1
        signing (important security features), and also for improving SMB3
        persistent handle reconnection (setting ChannelSequence number e.g.)
        that I am still working on but wanted to get this set in since they
        can stand alone"
      
      * 'for-next' of git://git.samba.org/sfrench/cifs-2.6:
        Allow copy offload (CopyChunk) across shares
        Add resilienthandles mount parm
        [SMB3] Send durable handle v2 contexts when use of persistent handles required
        [SMB3] Display persistenthandles in /proc/mounts for SMB3 shares if enabled
        [SMB3] Enable checking for continuous availability and persistent handle support
        [SMB3] Add parsing for new mount option controlling persistent handles
        Allow duplicate extents in SMB3 not just SMB3.1.1
      f3996e6a
    • Linus Torvalds's avatar
      Merge branch 'for-linus-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs · e75cdf98
      Linus Torvalds authored
      Pull btrfs fixes and cleanups from Chris Mason:
       "Some of this got cherry-picked from a github repo this week, but I
        verified the patches.
      
        We have three small scrub cleanups and a collection of fixes"
      
      * 'for-linus-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
        btrfs: Use fs_info directly in btrfs_delete_unused_bgs
        btrfs: Fix lost-data-profile caused by balance bg
        btrfs: Fix lost-data-profile caused by auto removing bg
        btrfs: Remove len argument from scrub_find_csum
        btrfs: Reduce unnecessary arguments in scrub_recheck_block
        btrfs: Use scrub_checksum_data and scrub_checksum_tree_block for scrub_recheck_block_checksum
        btrfs: Reset sblock->xxx_error stats before calling scrub_recheck_block_checksum
        btrfs: scrub: setup all fields for sblock_to_check
        btrfs: scrub: set error stats when tree block spanning stripes
        Btrfs: fix race when listing an inode's xattrs
        Btrfs: fix race leading to BUG_ON when running delalloc for nodatacow
        Btrfs: fix race leading to incorrect item deletion when dropping extents
        Btrfs: fix sleeping inside atomic context in qgroup rescan worker
        Btrfs: fix race waiting for qgroup rescan worker
        btrfs: qgroup: exit the rescan worker during umount
        Btrfs: fix extent accounting for partial direct IO writes
      e75cdf98
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client · ca4ba96e
      Linus Torvalds authored
      Pull Ceph updates from Sage Weil:
       "There are several patches from Ilya fixing RBD allocation lifecycle
        issues, a series adding a nocephx_sign_messages option (and associated
        bug fixes/cleanups), several patches from Zheng improving the
        (directory) fsync behavior, a big improvement in IO for direct-io
        requests when striping is enabled from Caifeng, and several other
        small fixes and cleanups"
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
        libceph: clear msg->con in ceph_msg_release() only
        libceph: add nocephx_sign_messages option
        libceph: stop duplicating client fields in messenger
        libceph: drop authorizer check from cephx msg signing routines
        libceph: msg signing callouts don't need con argument
        libceph: evaluate osd_req_op_data() arguments only once
        ceph: make fsync() wait unsafe requests that created/modified inode
        ceph: add request to i_unsafe_dirops when getting unsafe reply
        libceph: introduce ceph_x_authorizer_cleanup()
        ceph: don't invalidate page cache when inode is no longer used
        rbd: remove duplicate calls to rbd_dev_mapping_clear()
        rbd: set device_type::release instead of device::release
        rbd: don't free rbd_dev outside of the release callback
        rbd: return -ENOMEM instead of pool id if rbd_dev_create() fails
        libceph: use local variable cursor instead of &msg->cursor
        libceph: remove con argument in handle_reply()
        ceph: combine as many iovec as possile into one OSD request
        ceph: fix message length computation
        ceph: fix a comment typo
        rbd: drop null test before destroy functions
      ca4ba96e
    • Linus Torvalds's avatar
      Merge tag '4.4-additional' of git://git.lwn.net/linux · 4aeabc6b
      Linus Torvalds authored
      Pull more documentation updates from Jon Corbet:
       "A few more documentation patches that wandered in and have no reason
        to wait; these include some improvements to the suggestions for email
        clients and patch submission"
      
      * tag '4.4-additional' of git://git.lwn.net/linux:
        Documentation: Add minimal Mutt config for using Gmail
        Documentation: Add note on sending files directly with Mutt
        Documentation: dontdiff: remove media from dontdiff
        Documentation/SubmittingPatches: discuss In-Reply-To
        Remove email address from Documentation/filesystems/overlayfs.txt
        can-doc: Add missing semicolon to example
      4aeabc6b
    • Linus Torvalds's avatar
      Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux · be4773e6
      Linus Torvalds authored
      Pull drm sti driver updates from Dave Airlie:
       "The sti driver had a requirement on some patches in Greg's tree, they
        are in, so I see no problems just merging this one now"
      
      * 'drm-next' of git://people.freedesktop.org/~airlied/linux:
        drm/sti: load HQVDP firmware the first time HQVDP's plane is used
        drm/sti: fix typo issue in sti_mode_config_init
        drm/sti: set mixer background color through module param
        drm/sti: Remove local fbdev emulation Kconfig option
        drm/sti: remove redundant sign extensions
        drm/sti: hdmi use of_get_i2c_adapter_by_node interface
        drm/sti: hdmi fix i2c adapter device refcounting
        drm/sti: Do not export symbols
        drm/sti: Build monolithic driver
        drm/sti: Use drm_crtc_vblank_*() API
        drm/sti: Store correct CRTC index in events
        drm/sti: Select FW_LOADER
        drm/sti: Constify function pointer structs
      be4773e6
  2. 12 Nov, 2015 23 commits
    • Dan Williams's avatar
      dax: fix __dax_pmd_fault crash · 152d7bd8
      Dan Williams authored
      Since 4.3 introduced devm_memremap_pages() the pfns handled by DAX may
      optionally have a struct page backing.  When a mapped pfn reaches
      vmf_insert_pfn_pmd() it fails with a crash signature like the following:
      
       kernel BUG at mm/huge_memory.c:905!
       [..]
       Call Trace:
        [<ffffffff812a73ba>] __dax_pmd_fault+0x2ea/0x5b0
        [<ffffffffa01a4182>] xfs_filemap_pmd_fault+0x92/0x150 [xfs]
        [<ffffffff811fbe02>] handle_mm_fault+0x312/0x1b50
      
      Fix this by falling back to 4K mappings in the pfn_valid() case.  Longer
      term, vmf_insert_pfn_pmd() needs to grow support for architectures that
      can provide a 'pmd_special' capability.
      
      Cc: <stable@vger.kernel.org>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Reported-by: default avatarRoss Zwisler <ross.zwisler@linux.intel.com>
      Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
      152d7bd8
    • Linus Torvalds's avatar
      Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux · f6d07dfc
      Linus Torvalds authored
      Pull drm fixes from Dave Airlie:
       "One urgent fix for an oops under console lock in some drivers, one
        uapi fix, and one revert to fix rockchip regression"
      
      * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
        Revert "drm/rockchip: Convert the probe function to the generic drm_of_component_probe()"
        drm: Don't oops in drm_calc_timestamping_constants() if drm_vblank_init() wasn't called
        drm: Use userspace compatible type in fourcc_mod_code macro
      f6d07dfc
    • Linus Torvalds's avatar
      Merge tag 'trace-v4.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace · 0e976064
      Linus Torvalds authored
      Pull trace cleanups from Steven Rostedt:
       "This contains three more clean up patches.
      
        One patch is needed to make tracing work without debugfs now that
        tracing uses its own tracefs.
      
        The second is removing an unused variable.
      
        The third is fixing a warning about unused variables when MAX_TRACER
        is not configured.  Note, this warning shows up in gcc 6.0, but does
        not show up in gcc 4.9, as it seems that gcc does not complain about
        constants not being used"
      
      * tag 'trace-v4.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
        tracing: #ifdef out uses of max trace when CONFIG_TRACER_MAX_TRACE is not set
        tracing: Remove unused ftrace_cpu_disabled per cpu variable
        tracing: Make tracing work when debugfs is not configured in
      0e976064
    • Dave Airlie's avatar
      Merge branch 'drm-sti-next-2015-11-03' of... · f20780f3
      Dave Airlie authored
      Merge branch 'drm-sti-next-2015-11-03' of http://git.linaro.org/people/benjamin.gaignard/kernel into drm-next
      
      sti/drm changes
      
      Add better support for firmware loading
      lots of fixes.
      
      * 'drm-sti-next-2015-11-03' of http://git.linaro.org/people/benjamin.gaignard/kernel:
        drm/sti: load HQVDP firmware the first time HQVDP's plane is used
        drm/sti: fix typo issue in sti_mode_config_init
        drm/sti: set mixer background color through module param
        drm/sti: Remove local fbdev emulation Kconfig option
        drm/sti: remove redundant sign extensions
        drm/sti: hdmi use of_get_i2c_adapter_by_node interface
        drm/sti: hdmi fix i2c adapter device refcounting
        drm/sti: Do not export symbols
        drm/sti: Build monolithic driver
        drm/sti: Use drm_crtc_vblank_*() API
        drm/sti: Store correct CRTC index in events
        drm/sti: Select FW_LOADER
        drm/sti: Constify function pointer structs
      f20780f3
    • Mark Yao's avatar
      Revert "drm/rockchip: Convert the probe function to the generic drm_of_component_probe()" · 5bad7d29
      Mark Yao authored
      This reverts commit 52f5eb60.
      
      Rockchip drm can't work with generic drm_of_component_probe now
      Signed-off-by: default avatarMark Yao <mark.yao@rock-chips.com>
      Acked-by: default avatarLiviu Dudau <Liviu.Dudau@arm.com>
      Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
      5bad7d29
    • Ville Syrjälä's avatar
      drm: Don't oops in drm_calc_timestamping_constants() if drm_vblank_init() wasn't called · 0c545ac4
      Ville Syrjälä authored
      Seems the crtc helpers call drm_calc_timestamping_constants()
      unconditionally even if the driver didn't initialize vblank support by
      calling drm_vblank_init(). That used to be OK since the constants were
      stored under drm_crtc.
      
      However I broke this with
      commit eba1f35d ("drm: Move timestamping constants into drm_vblank_crtc")
      when I moved the constants to live inside the drm_vblank_crtc struct
      instead. If drm_vblank_init() isn't called, we don't allocate these
      structures, and so drm_calc_timestamping_constants() will oops.
      
      Fix it by adding a check into drm_calc_timestamping_constants() to see
      if vblank support was initialized at all. And to keep in line with other
      such checks, also toss in a check and warn for the case where vblank
      support was initialized, but the wrong number of crtcs was specified.
      
      Fixes the following sort of oops:
       BUG: unable to handle kernel NULL pointer dereference at 00000000000000b0
       IP: [<ffffffffa014b266>] drm_calc_timestamping_constants+0x86/0x130 [drm]
       PGD 0
       Oops: 0002 [#1] SMP
       Modules linked in: sr_mod cdrom mgag200(+) i2c_algo_bit drm_kms_helper ahci syscopyarea sysfillrect sysimgblt libahci fb_sys_fops bnx2x ttm tg3(+) mdio drm ptp sd_mod libata i2c_core pps_core libcrc32c hpsa dm_mirror dm_region_hash dm_log dm_mod
       CPU: 0 PID: 418 Comm: kworker/0:2 Not tainted 4.3.0+ #1
       Hardware name: HP ProLiant DL380 Gen9, BIOS P89 06/09/2015
       Workqueue: events work_for_cpu_fn
       task: ffff88046ca95500 ti: ffff88007830c000 task.ti: ffff88007830c000
       RIP: 0010:[<ffffffffa014b266>]  [<ffffffffa014b266>] drm_calc_timestamping_constants+0x86/0x130 [drm]
       RSP: 0018:ffff88007830f4e8  EFLAGS: 00010246
       RAX: 0000000000fe4c00 RBX: ffff88006a849160 RCX: 0000000000000540
       RDX: 0000000000000000 RSI: 000000000000fde8 RDI: ffff88006a849000
       RBP: ffff88007830f518 R08: ffff88007830c000 R09: 00000001b87e3712
       R10: 00000000000050c4 R11: 0000000000000000 R12: 0000000000fe4c00
       R13: ffff88006a849000 R14: 0000000000000000 R15: 000000000000fde8
       FS:  0000000000000000(0000) GS:ffff88046f800000(0000) knlGS:0000000000000000
       CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
       CR2: 00000000000000b0 CR3: 00000000019d6000 CR4: 00000000001406f0
       Stack:
        ffff88007830f518 ffff88006a849000 ffff880c69b90340 ffff880c69b90000
        ffff880c69b90348 ffff880c69b90340 ffff88007830f748 ffffffffa042f7e7
        ffff88006a849090 0000000000000000 ffff88006a849160 0000000000000000
       Call Trace:
        [<ffffffffa042f7e7>] drm_crtc_helper_set_mode+0x3d7/0x4b0 [drm_kms_helper]
        [<ffffffffa04307d4>] drm_crtc_helper_set_config+0x8d4/0xb10 [drm_kms_helper]
        [<ffffffffa01548d4>] drm_mode_set_config_internal+0x64/0x100 [drm]
        [<ffffffffa043c342>] drm_fb_helper_pan_display+0xa2/0x280 [drm_kms_helper]
        [<ffffffff81392c7b>] fb_pan_display+0xbb/0x170
        [<ffffffff8138cf70>] bit_update_start+0x20/0x50
        [<ffffffff8138b81b>] fbcon_switch+0x39b/0x590
        [<ffffffff8140a3d0>] redraw_screen+0x1a0/0x240
        [<ffffffff8140b30e>] do_bind_con_driver+0x2ee/0x310
        [<ffffffff8140b651>] do_take_over_console+0x141/0x1b0
        [<ffffffff81387377>] do_fbcon_takeover+0x57/0xb0
        [<ffffffff8138c98b>] fbcon_event_notify+0x60b/0x750
        [<ffffffff810a5599>] notifier_call_chain+0x49/0x70
        [<ffffffff810a58dd>] __blocking_notifier_call_chain+0x4d/0x70
        [<ffffffff810a5916>] blocking_notifier_call_chain+0x16/0x20
        [<ffffffff8139282b>] fb_notifier_call_chain+0x1b/0x20
        [<ffffffff81394881>] register_framebuffer+0x1f1/0x330
        [<ffffffffa043d9aa>] drm_fb_helper_initial_config+0x27a/0x3d0 [drm_kms_helper]
        [<ffffffffa0469b4d>] mgag200_fbdev_init+0xdd/0xf0 [mgag200]
        [<ffffffffa0468586>] mgag200_modeset_init+0x176/0x1e0 [mgag200]
        [<ffffffffa0464659>] mgag200_driver_load+0x3f9/0x580 [mgag200]
        [<ffffffffa014e067>] drm_dev_register+0xa7/0xb0 [drm]
        [<ffffffffa015054f>] drm_get_pci_dev+0x8f/0x1e0 [drm]
        [<ffffffffa046937b>] mga_pci_probe+0x9b/0xc0 [mgag200]
        [<ffffffff813662d5>] local_pci_probe+0x45/0xa0
        [<ffffffff8109afe4>] work_for_cpu_fn+0x14/0x20
        [<ffffffff8109e13c>] process_one_work+0x14c/0x3c0
        [<ffffffff8109eaa4>] worker_thread+0x244/0x470
        [<ffffffff8168bfba>] ? __schedule+0x2aa/0x760
        [<ffffffff8109e860>] ? rescuer_thread+0x310/0x310
        [<ffffffff810a4438>] kthread+0xd8/0xf0
        [<ffffffff810a4360>] ? kthread_park+0x60/0x60
        [<ffffffff8169030f>] ret_from_fork+0x3f/0x70
        [<ffffffff810a4360>] ? kthread_park+0x60/0x60
       Code: f6 31 d2 41 89 c2 8b 83 b4 00 00 00 0f af c1 48 98 48 69 c0 40 42 0f 00 48 f7 f6 f6 43 74 10 41 89 c4 75 26 f6 05 9a 6f 03 00 01 <45> 89 96 b0 00 00 00 45 89 a6 ac 00 00 00 75 35 48 83 c4 08 5b
       RIP  [<ffffffffa014b266>] drm_calc_timestamping_constants+0x86/0x130 [drm]
        RSP <ffff88007830f4e8>
       CR2: 00000000000000b0
      
      Cc: Jeff Moyer <jmoyer@redhat.com>
      Reported-by: default avatarJeff Moyer <jmoyer@redhat.com>
      References: http://lists.freedesktop.org/archives/dri-devel/2015-November/094217.html
      Fixes: eba1f35d ("drm: Move timestamping constants into drm_vblank_crtc")
      Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
      Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
      0c545ac4
    • Dave Airlie's avatar
      Merge tag 'topic/drm-fixes-2015-11-11' of git://anongit.freedesktop.org/drm-intel into drm-fixes · 9589fcde
      Dave Airlie authored
      Single fix for uapi.
      
      * tag 'topic/drm-fixes-2015-11-11' of git://anongit.freedesktop.org/drm-intel:
        drm: Use userspace compatible type in fourcc_mod_code macro
      9589fcde
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.dk/linux-block · 5e2078b2
      Linus Torvalds authored
      Pull misc block fixes from Jens Axboe:
       "Stuff that got collected after the merge window opened.  This
        contains:
      
         - NVMe:
              - Fix for non-striped transfer size setting for NVMe from
                Sathyavathi.
              - (Some) support for the weird Apple nvme controller in the
                macbooks. From Stephan Günther.
      
         - The error value leak for dax from Al.
      
         - A few minor blk-mq tweaks from me.
      
         - Add the new linux-block@vger.kernel.org mailing list to the
           MAINTAINERS file.
      
         - Discard fix for brd, from Jan.
      
         - A kerneldoc warning for block core from Randy.
      
         - An older fix from Vivek, converting a WARN_ON() to a rate limited
           printk when a device is hot removed with dirty inodes"
      
      * 'for-linus' of git://git.kernel.dk/linux-block:
        block: don't hardcode blk_qc_t -> tag mask
        dax_io(): don't let non-error value escape via retval instead of EFAULT
        block: fix blk-core.c kernel-doc warning
        fs/block_dev.c: Remove WARN_ON() when inode writeback fails
        NVMe: add support for Apple NVMe controller
        NVMe: use split lo_hi_{read,write}q
        blk-mq: mark __blk_mq_complete_request() static
        MAINTAINERS: add reference to new linux-block list
        NVMe: Increase the max transfer size when mdts is 0
        brd: Refuse improperly aligned discard requests
      5e2078b2
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security · a4d8c7c9
      Linus Torvalds authored
      Pull security subsystem fixes from James Morris:
       "This includes several fixes for TPM, as well as a fix for the x.509
        certificate parser to address CVE-2015-5327"
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
        X.509: Fix the time validation [ver #2]
        tpm: fix compat 'ppi' link handling in tpm_chip_register()
        tpm: fix missing migratable flag in sealing functionality for TPM2
        TPM: revert the list handling logic fixed in 398a1e71
        TPM: Avoid reference to potentially freed memory
        tpm_tis: restore IRQ vector in IO memory after failed probing
        tpm_tis: free irq after probing
      a4d8c7c9
    • Linus Torvalds's avatar
      Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux · a18e2fa5
      Linus Torvalds authored
      Pull arm64 fixes and clean-ups from Catalin Marinas:
       "Here's a second pull request for this merging window with some
        fixes/clean-ups:
      
         - __cmpxchg_double*() return type fix to avoid truncation of a long
           to int and subsequent logical "not" in cmpxchg_double()
           misinterpreting the operation success/failure
      
         - BPF fixes for mod and div by zero
      
         - Fix compilation with STRICT_MM_TYPECHECKS enabled
      
         - VDSO build fix without libgcov
      
         - Some static and __maybe_unused annotations
      
         - Kconfig clean-up (FRAME_POINTER)
      
         - defconfig update for CRYPTO_CRC32_ARM64"
      
      * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
        arm64: suspend: make hw_breakpoint_restore static
        arm64: mmu: make split_pud and fixup_executable static
        arm64: smp: make of_parse_and_init_cpus static
        arm64: use linux/types.h in kvm.h
        arm64: build vdso without libgcov
        arm64: mark cpus_have_hwcap as __maybe_unused
        arm64: remove redundant FRAME_POINTER kconfig option and force to select it
        arm64: fix R/O permissions of FDT mapping
        arm64: fix STRICT_MM_TYPECHECKS issue in PTE_CONT manipulation
        arm64: bpf: fix mod-by-zero case
        arm64: bpf: fix div-by-zero case
        arm64: Enable CRYPTO_CRC32_ARM64 in defconfig
        arm64: cmpxchg_dbl: fix return value type
      a18e2fa5
    • Linus Torvalds's avatar
      Merge tag 'for-4.4' of git://git.osdn.jp/gitroot/uclinux-h8/linux · 7dac7102
      Linus Torvalds authored
      Pull h8300 updates from Yoshinori Sato:
       "Some bug fixes"
      
      * tag 'for-4.4' of git://git.osdn.jp/gitroot/uclinux-h8/linux:
        h8300: enable CLKSRC_OF
        h8300: Don't set CROSS_COMPILE unconditionally
        asm-generic: {get,put}_user ptr argument evaluate only 1 time
        h8300: bit io fix
        h8300: zImage fix
        h8300: register address fix
        h8300: Fix alignment for .data
        h8300: unaligned divcr register support.
      7dac7102
    • Linus Torvalds's avatar
      Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm · 3370b69e
      Linus Torvalds authored
      Pull second batch of kvm updates from Paolo Bonzini:
       "Four changes:
      
         - x86: work around two nasty cases where a benign exception occurs
           while another is being delivered.  The endless stream of exceptions
           causes an infinite loop in the processor, which not even NMIs or
           SMIs can interrupt; in the virt case, there is no possibility to
           exit to the host either.
      
         - x86: support for Skylake per-guest TSC rate.  Long supported by
           AMD, the patches mostly move things from there to common
           arch/x86/kvm/ code.
      
         - generic: remove local_irq_save/restore from the guest entry and
           exit paths when context tracking is enabled.  The patches are a few
           months old, but we discussed them again at kernel summit.  Andy
           will pick up from here and, in 4.5, try to remove it from the user
           entry/exit paths.
      
         - PPC: Two bug fixes, see merge commit 37028975 for details"
      
      * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (21 commits)
        KVM: x86: rename update_db_bp_intercept to update_bp_intercept
        KVM: svm: unconditionally intercept #DB
        KVM: x86: work around infinite loop in microcode when #AC is delivered
        context_tracking: avoid irq_save/irq_restore on guest entry and exit
        context_tracking: remove duplicate enabled check
        KVM: VMX: Dump TSC multiplier in dump_vmcs()
        KVM: VMX: Use a scaled host TSC for guest readings of MSR_IA32_TSC
        KVM: VMX: Setup TSC scaling ratio when a vcpu is loaded
        KVM: VMX: Enable and initialize VMX TSC scaling
        KVM: x86: Use the correct vcpu's TSC rate to compute time scale
        KVM: x86: Move TSC scaling logic out of call-back read_l1_tsc()
        KVM: x86: Move TSC scaling logic out of call-back adjust_tsc_offset()
        KVM: x86: Replace call-back compute_tsc_offset() with a common function
        KVM: x86: Replace call-back set_tsc_khz() with a common function
        KVM: x86: Add a common TSC scaling function
        KVM: x86: Add a common TSC scaling ratio field in kvm_vcpu_arch
        KVM: x86: Collect information for setting TSC scaling ratio
        KVM: x86: declare a few variables as __read_mostly
        KVM: x86: merge handle_mmio_page_fault and handle_mmio_page_fault_common
        KVM: PPC: Book3S HV: Don't dynamically split core when already split
        ...
      3370b69e
    • Linus Torvalds's avatar
      Merge tag 'pm+acpi-4.4-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · be23c9d2
      Linus Torvalds authored
      Pull more power management and ACPI updates from Rafael Wysocki:
       "The only new feature in this batch is support for the ACPI _CCA device
        configuration object, which it a pre-requisite for future ACPI PCI
        support on ARM64, but should not affect the other architectures.
      
        The rest is fixes and cleanups, mostly in cpufreq (including
        intel_pstate), the Operating Performace Points (OPP) framework and
        tools (cpupower and turbostat).
      
        Specifics:
      
         - Support for the ACPI _CCA configuration object intended to tell the
           OS whether or not a bus master device supports hardware managed
           cache coherency and a new set of functions to allow drivers to
           check the cache coherency support for devices in a platform
           firmware interface agnostic way (Suravee Suthikulpanit, Jeremy
           Linton).
      
         - ACPI backlight quirks for ESPRIMO Mobile M9410 and Dell XPS L421X
           (Aaron Lu, Hans de Goede).
      
         - Fixes for the arm_big_little and s5pv210-cpufreq cpufreq drivers
           (Jon Medhurst, Nicolas Pitre).
      
         - kfree()-related fixup for the recently introduced CPPC cpufreq
           frontend (Markus Elfring).
      
         - intel_pstate fix reducing kernel log noise on systems where
           P-states are managed by hardware (Prarit Bhargava).
      
         - intel_pstate maintainers information update (Srinivas Pandruvada).
      
         - cpufreq core optimization related to the handling of delayed work
           items used by governors (Viresh Kumar).
      
         - Locking fixes and cleanups of the Operating Performance Points
           (OPP) framework (Viresh Kumar).
      
         - Generic power domains framework cleanups (Lina Iyer).
      
         - cpupower tool updates (Jacob Tanenbaum, Sriram Raghunathan, Thomas
           Renninger).
      
         - turbostat tool updates (Len Brown)"
      
      * tag 'pm+acpi-4.4-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (32 commits)
        PCI: ACPI: Add support for PCI device DMA coherency
        PCI: OF: Move of_pci_dma_configure() to pci_dma_configure()
        of/pci: Fix pci_get_host_bridge_device leak
        device property: ACPI: Remove unused DMA APIs
        device property: ACPI: Make use of the new DMA Attribute APIs
        device property: Adding DMA Attribute APIs for Generic Devices
        ACPI: Adding DMA Attribute APIs for ACPI Device
        device property: Introducing enum dev_dma_attr
        ACPI: Honor ACPI _CCA attribute setting
        cpufreq: CPPC: Delete an unnecessary check before the function call kfree()
        PM / OPP: Add opp_rcu_lockdep_assert() to _find_device_opp()
        PM / OPP: Hold dev_opp_list_lock for writers
        PM / OPP: Protect updates to list_dev with mutex
        PM / OPP: Propagate error properly from dev_pm_opp_set_sharing_cpus()
        cpufreq: s5pv210-cpufreq: fix wrong do_div() usage
        MAINTAINERS: update for intel P-state driver
        Creating a common structure initialization pattern for struct option
        cpupower: Enable disabled Cstates if they are below max latency
        cpupower: Remove debug message when using cpupower idle-set -D switch
        cpupower: cpupower monitor reports uninitialized values for offline cpus
        ...
      be23c9d2
    • Konrad Rzeszutek Wilk's avatar
      libnvdimm: documentation clarifications · 8de5dff8
      Konrad Rzeszutek Wilk authored
      A bunch of changes that I hope will help in understanding it
      better for first-time readers.
      Signed-off-by: default avatarKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
      8de5dff8
    • Dan Williams's avatar
      libnvdimm, pmem: fix size trim in pmem_direct_access() · 589e75d1
      Dan Williams authored
      This masking prevents access to the end of the device via dax_do_io(),
      and is unnecessary as arch_add_memory() would have rejected an unaligned
      allocation.
      
      Cc: <stable@vger.kernel.org>
      Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
      Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
      589e75d1
    • Dan Williams's avatar
      libnvdimm, e820: fix numa node for e820-type-12 pmem ranges · f7256dc0
      Dan Williams authored
      Rather than punt on the numa node for these e820 ranges try to find a
      better answer with memory_add_physaddr_to_nid() when it is available.
      
      Cc: <stable@vger.kernel.org>
      Reported-by: default avatarBoaz Harrosh <boaz@plexistor.com>
      Tested-by: default avatarBoaz Harrosh <boaz@plexistor.com>
      Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
      f7256dc0
    • Dan Williams's avatar
      tools/testing/nvdimm, acpica: fix flag rename build breakage · f4295796
      Dan Williams authored
      Commit ca321d1c "ACPICA: Update NFIT table to rename a flags field"
      performed a tree-wide s/ACPI_NFIT_MEM_ARMED/ACPI_NFIT_MEM_NOT_ARMED/
      operation, but missed the tools/testing/nvdimm/ directory.
      
      Cc: Bob Moore <robert.moore@intel.com>
      Cc: Lv Zheng <lv.zheng@intel.com>
      Acked-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
      Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
      f4295796
    • Jisheng Zhang's avatar
      arm64: suspend: make hw_breakpoint_restore static · 01b305a2
      Jisheng Zhang authored
      hw_breakpoint_restore is only used within suspend.c, so it can be
      declared static.
      Signed-off-by: default avatarJisheng Zhang <jszhang@marvell.com>
      Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
      01b305a2
    • Jisheng Zhang's avatar
      arm64: mmu: make split_pud and fixup_executable static · 9a17a213
      Jisheng Zhang authored
      split_pud and fixup_executable are only called from within mmu.c, so
      they can be declared static.
      Signed-off-by: default avatarJisheng Zhang <jszhang@marvell.com>
      Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
      9a17a213
    • Jisheng Zhang's avatar
      arm64: smp: make of_parse_and_init_cpus static · 29b8302b
      Jisheng Zhang authored
      of_parse_and_init_cpus is only called from within smp.c, so it can be
      declared static.
      Signed-off-by: default avatarJisheng Zhang <jszhang@marvell.com>
      Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
      29b8302b
    • Arnd Bergmann's avatar
      arm64: use linux/types.h in kvm.h · d1927915
      Arnd Bergmann authored
      We should always use linux/types.h instead of asm/types.h for
      consistency, and Kbuild actually warns about it:
      
      ./usr/include/asm/kvm.h:35: include of <linux/types.h> is preferred over <asm/types.h>
      
      This patch does as Kbuild asks us.
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
      d1927915
    • Arnd Bergmann's avatar
      arm64: build vdso without libgcov · 54309784
      Arnd Bergmann authored
      On a cross-toolchain without glibc support, libgcov may not be
      available, and attempting to build an arm64 kernel with GCOV
      enabled then results in a build error:
      
      /home/arnd/cross-gcc/lib/gcc/aarch64-linux/5.2.1/../../../../aarch64-linux/bin/ld: cannot find -lgcov
      
      We don't really want to link libgcov into the vdso anyway, so
      this patch just disables GCOV in the vdso directory, just as
      we do for most other architectures.
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
      54309784
    • Arnd Bergmann's avatar
      arm64: mark cpus_have_hwcap as __maybe_unused · 3d6d1035
      Arnd Bergmann authored
      cpus_have_hwcap() is defined as a 'static' function an only used in
      one place that is inside of an #ifdef, so we get a warning when
      the only user is disabled:
      
      arch/arm64/kernel/cpufeature.c:699:13: warning: 'cpus_have_hwcap' defined but not used [-Wunused-function]
      
      This marks the function as __maybe_unused, so the compiler knows that
      it can drop the function definition without warning about it.
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      Fixes: 37b01d53 ("arm64/HWCAP: Use system wide safe values")
      Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
      3d6d1035