Commit Graph

633250 Commits

Author SHA1 Message Date
Rafael J. Wysocki 522533f338 Merge branches 'acpi-fan', 'acpi-ec', 'acpi-drivers' and 'acpi-osl'
* acpi-fan:
  ACPI / fan: Fix error reading cur_state

* acpi-ec:
  ACPI / EC: Fix unused function warning when CONFIG_PM_SLEEP=n

* acpi-drivers:
  ACPI / PAD: don't register acpi_pad driver if running as Xen dom0

* acpi-osl:
  acpi_os_vprintf: Use printk_get_level() to avoid unnecessary KERN_CONT
2016-10-14 14:10:19 +02:00
Rafael J. Wysocki 3f62d5269b Merge branches 'device-properties' and 'acpi-misc'
* device-properties:
  ACPI / property: Allow holes in reference properties

* acpi-misc:
  MAINTAINERS: Add ARM64-specific ACPI maintainers entry
2016-10-14 14:09:57 +02:00
Rafael J. Wysocki 383731d98e Merge branches 'pm-cpufreq' and 'pm-devfreq'
* pm-cpufreq:
  cpufreq: CPPC: Correct desired_perf calculation
  cpufreq: conservative: Fix next frequency selection
  cpufreq: skip invalid entries when searching the frequency
  cpufreq: intel_pstate: Fix struct pstate_adjust_policy kerneldoc
  cpufreq: intel_pstate: Proportional algorithm for Atom
  cpufreq: intel_pstate: Clarify comment in get_target_pstate_use_performance()
  cpufreq: intel_pstate: Fix unsafe HWP MSR access

* pm-devfreq:
  PM / devfreq: Skip status update on uninitialized previous_freq
  PM / devfreq: Add proper locking around list_del()
  PM / devfreq: exynos-nocp: Remove redundant code
  PM / devfreq: exynos-nocp: Select REGMAP_MMIO
2016-10-14 14:09:14 +02:00
Miklos Szeredi 7764235bec ovl: use vfs_get_link()
Resulting in a complete removal of a function basically implementing the
inverse of vfs_readlink().

As a bonus, now the proper security hook is also called.

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2016-10-14 11:16:47 +02:00
Miklos Szeredi d60874cd58 vfs: add vfs_get_link() helper
This helper is for filesystems that want to read the symlink and are better
off with the get_link() interface (returning a char *) rather than the
readlink() interface (copy into a userspace buffer).

Also call the LSM hook for readlink (not get_link) since this is for
symlink reading not following.

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2016-10-14 11:16:47 +02:00
Miklos Szeredi 78a3fa4f32 ovl: use generic_readlink
All filesystems that are backers for overlayfs would also use
generic_readlink().  Move this logic to the overlay itself, which is a nice
cleanup.

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2016-10-14 11:16:46 +02:00
Miklos Szeredi cb348edb6b ovl: explain error values when removing acl from workdir
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> 
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2016-10-14 11:16:46 +02:00
Linus Torvalds 29fbff8698 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Fix various build warnings in tlan/qed/xen-netback drivers, from
    Arnd Bergmann.

 2) Propagate proper error code in strparser's strp_recv(), from Geert
    Uytterhoeven.

 3) Fix accidental broadcast of RTM_GETTFILTER responses, from Eric
    Dumazret.

 4) Need to use list_for_each_entry_safe() in qed driver, from Wei
    Yongjun.

 5) Openvswitch 802.1AD bug fixes from Jiri Benc.

 6) Cure BUILD_BUG_ON() in mlx5 driver, from Tom Herbert.

 7) Fix UDP ipv6 checksumming in netvsc driver, from Stephen Hemminger.

 8) stmmac driver fixes from Giuseppe CAVALLARO.

 9) Fix access to mangled IP6CB in tcp, from Eric Dumazet.

10) Fix info leaks in tipc and rtnetlink, from Dan Carpenter.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (27 commits)
  net: bridge: add the multicast_flood flag attribute to brport_attrs
  net: axienet: Remove unused parameter from __axienet_device_reset
  liquidio: CN23XX: fix a loop timeout
  net: rtnl: info leak in rtnl_fill_vfinfo()
  tipc: info leak in __tipc_nl_add_udp_addr()
  net: ipv4: Do not drop to make_route if oif is l3mdev
  net: phy: Trigger state machine on state change and not polling.
  ipv6: tcp: restore IP6CB for pktoptions skbs
  netvsc: Remove mistaken udp.h inclusion.
  xen-netback: fix type mismatch warning
  stmmac: fix error check when init ptp
  stmmac: fix ptp init for gmac4
  qed: fix old-style function definition
  netvsc: fix checksum on UDP IPV6
  net_sched: reorder pernet ops and act ops registrations
  xen-netback: fix guest Rx stall detection (after guest Rx refactor)
  drivers/ptp: Fix kernel memory disclosure
  net/mlx5: Add MLX5_ARRAY_SET64 to fix BUILD_BUG_ON
  qmi_wwan: add support for Quectel EC21 and EC25
  openvswitch: add NETIF_F_HW_VLAN_STAG_TX to internal dev
  ...
2016-10-13 21:40:23 -07:00
Linus Torvalds c4a86165d1 NFS client updates for Linux 4.9
Highlights include:
 
 Stable bugfixes:
 - sunrpc: fix writ espace race causing stalls
 - NFS: Fix inode corruption in nfs_prime_dcache()
 - NFSv4: Don't report revoked delegations as valid in
   nfs_have_delegation()
 - NFSv4: nfs4_copy_delegation_stateid() must fail if the delegation is
   invalid
 - NFSv4: Open state recovery must account for file permission changes
 - NFSv4.2: Fix a reference leak in nfs42_proc_layoutstats_generic
 
 Features:
 - Add support for tracking multiple layout types with an ordered list
 - Add support for using multiple backchannel threads on the client
 - Add support for pNFS file layout session trunking
 - Delay xprtrdma use of DMA API (for device driver removal)
 - Add support for xprtrdma remote invalidation
 - Add support for larger xprtrdma inline thresholds
 - Use a scatter/gather list for sending xprtrdma RPC calls
 - Add support for the CB_NOTIFY_LOCK callback
 - Improve hashing sunrpc auth_creds by using both uid and gid
 
 Bugfixes:
 - Fix xprtrdma use of DMA API
 - Validate filenames before adding to the dcache
 - Fix corruption of xdr->nwords in xdr_copy_to_scratch
 - Fix setting buffer length in xdr_set_next_buffer()
 - Don't deadlock the state manager on the SEQUENCE status flags
 - Various delegation and stateid related fixes
 - Retry operations if an interrupted slot receives EREMOTEIO
 - Make nfs boot time y2038 safe
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABCAAGBQJX/+ZfAAoJENfLVL+wpUDr5MUP/16s2Kp9ZZZZ7ICi3yrHOzb0
 9WpCOmbKUIELXl8YgkxlvPUYMzTQTIc32TwbVgdFV0g41my/0+O3z3+IiTrUGxH5
 8LgouMWBZ9KKmyUB//+KQAXr3j/bvDdF6Li6wJfz8a2o+9xT4oTkK1+Js8p0kn6e
 HNKfRknfCKwvE+j4tPCLfs2RX5qDyBFILXwWhj1fAbmT3rbnp+QqkXD4mWUrXb9z
 DBgxciXRhOkOQQAD2KQBFd2kUqWDZ5ED23b+aYsu9D3VCW45zitBqQFAxkQWL0hp
 x8Mp+MDCxlgdEaGQPUmUiDtPkG1X9ZxUJCAwaJWWsZaItwR2Il+en2sETctnTZ1X
 0IAxZVFdolzSeLzIfNx3OG32JdWJdaNjUzkIZam8gO6i1f6PAmK4alR0J3CT31nJ
 /OEN76o1E7acGWRMmj+MAZ2U5gPfR7EitOzyE8ZUPcHgyeGMiynjwi56WIpeSvT2
 F/Sp5kRe5+D5gtnYuppGp7Srp5vYdtFaz1zgPDUKpDLcxfDweO8AHGjJf3Zmrunx
 X24yia4A14CnfcUy4vKpISXRykmkG/3Z0tpWwV53uXZm4nlQfRc7gPibiW7Ay521
 af8sDoItW98K3DK5NQU7IUn83ua1TStzpoqlAEafRw//g9zPMTbhHvNvOyrRfrcX
 kjWn6hNblMu9M34JOjtu
 =XOrF
 -----END PGP SIGNATURE-----

Merge tag 'nfs-for-4.9-1' of git://git.linux-nfs.org/projects/anna/linux-nfs

Pull NFS client updates from Anna Schumaker:
 "Highlights include:

  Stable bugfixes:
   - sunrpc: fix writ espace race causing stalls
   - NFS: Fix inode corruption in nfs_prime_dcache()
   - NFSv4: Don't report revoked delegations as valid in nfs_have_delegation()
   - NFSv4: nfs4_copy_delegation_stateid() must fail if the delegation is invalid
   - NFSv4: Open state recovery must account for file permission changes
   - NFSv4.2: Fix a reference leak in nfs42_proc_layoutstats_generic

  Features:
   - Add support for tracking multiple layout types with an ordered list
   - Add support for using multiple backchannel threads on the client
   - Add support for pNFS file layout session trunking
   - Delay xprtrdma use of DMA API (for device driver removal)
   - Add support for xprtrdma remote invalidation
   - Add support for larger xprtrdma inline thresholds
   - Use a scatter/gather list for sending xprtrdma RPC calls
   - Add support for the CB_NOTIFY_LOCK callback
   - Improve hashing sunrpc auth_creds by using both uid and gid

  Bugfixes:
   - Fix xprtrdma use of DMA API
   - Validate filenames before adding to the dcache
   - Fix corruption of xdr->nwords in xdr_copy_to_scratch
   - Fix setting buffer length in xdr_set_next_buffer()
   - Don't deadlock the state manager on the SEQUENCE status flags
   - Various delegation and stateid related fixes
   - Retry operations if an interrupted slot receives EREMOTEIO
   - Make nfs boot time y2038 safe"

* tag 'nfs-for-4.9-1' of git://git.linux-nfs.org/projects/anna/linux-nfs: (100 commits)
  NFSv4.2: Fix a reference leak in nfs42_proc_layoutstats_generic
  fs: nfs: Make nfs boot time y2038 safe
  sunrpc: replace generic auth_cred hash with auth-specific function
  sunrpc: add RPCSEC_GSS hash_cred() function
  sunrpc: add auth_unix hash_cred() function
  sunrpc: add generic_auth hash_cred() function
  sunrpc: add hash_cred() function to rpc_authops struct
  Retry operation on EREMOTEIO on an interrupted slot
  pNFS: Fix atime updates on pNFS clients
  sunrpc: queue work on system_power_efficient_wq
  NFSv4.1: Even if the stateid is OK, we may need to recover the open modes
  NFSv4: If recovery failed for a specific open stateid, then don't retry
  NFSv4: Fix retry issues with nfs41_test/free_stateid
  NFSv4: Open state recovery must account for file permission changes
  NFSv4: Mark the lock and open stateids as invalid after freeing them
  NFSv4: Don't test open_stateid unless it is set
  NFSv4: nfs4_do_handle_exception() handle revoke/expiry of a single stateid
  NFS: Always call nfs_inode_find_state_and_recover() when revoking a delegation
  NFSv4: Fix a race when updating an open_stateid
  NFSv4: Fix a race in nfs_inode_reclaim_delegation()
  ...
2016-10-13 21:28:20 -07:00
Linus Torvalds 2778556474 Some RDMA work and some good bugfixes, and two new features that could
benefit from user testing:
 
 Anna Schumacker contributed a simple NFSv4.2 COPY implementation.  COPY
 is already supported on the client side, so a call to copy_file_range()
 on a recent client should now result in a server-side copy that doesn't
 require all the data to make a round trip to the client and back.
 
 Jeff Layton implemented callbacks to notify clients when contended locks
 become available, which should reduce latency on workloads with
 contended locks.
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJX/mcsAAoJECebzXlCjuG+MU0P/3SzTLGYXU5yOTAorx255/uf
 fUVKQQhTzzaA2xj3gWWWztYx3y0ZJUVgwU56a+Ap5Z8/goqDQ78H+ePEc+MG7BT/
 /UXS/bITvt0MP/dvPrDzhSltvqx/wpelLPBo29hGLlAQ2dsnD4Y75IbOOQccWqcC
 iD2v6x7lnpWZ7j9Zhwzg/JNQHwISIb7tiLoYBjfcdNDEMU76KIyhxD0Cx9MSeBzH
 9Rq/oEdwGDFS5WqVfNe2jxbngoauq1IupziQ2eQGv2D/POyXCx8fphoYjDz1XaW8
 PxaJtJtM2owPGG+z2CxklJqNaS1Z4F+oppjg+nf4i/ibxmIBaTy8NluASX3vMh69
 CDO1+ly+TiF0l1VqMOQJWRnqn1qGk6fLpF6P1Ac62B0oWpeLGU7nmik7XN1ORgsi
 8ksxRKNAWeprZo3wl5xNrADu/wlZ7XCJTc4QoHEgYT04aHF+j8EMCHv+mtZ8+Bwn
 WWiA8iItZOgXV4vitCRJlvsixjYvmF3djPIoI2Lt5KDWIg+eL89sKwzTALSfeC4m
 Vjb0svzPX1MmZCNP1rCStFbl3gZYXZyqPk+uA6M7H8mjAjVeKxRPowWpMBgvYZHr
 FjCPb878bAuqCeBVbIyOLLcKWBLTw8PsUWZAor3gNg454JGkMjLUyJ/S22Cz5Nbo
 HdjoiTJtbPrHnCwTMXwa
 =nozl
 -----END PGP SIGNATURE-----

Merge tag 'nfsd-4.9' of git://linux-nfs.org/~bfields/linux

Pull nfsd updates from Bruce Fields:
 "Some RDMA work and some good bugfixes, and two new features that could
  benefit from user testing:

   - Anna Schumacker contributed a simple NFSv4.2 COPY implementation.
     COPY is already supported on the client side, so a call to
     copy_file_range() on a recent client should now result in a
     server-side copy that doesn't require all the data to make a round
     trip to the client and back.

   - Jeff Layton implemented callbacks to notify clients when contended
     locks become available, which should reduce latency on workloads
     with contended locks"

* tag 'nfsd-4.9' of git://linux-nfs.org/~bfields/linux:
  NFSD: Implement the COPY call
  nfsd: handle EUCLEAN
  nfsd: only WARN once on unmapped errors
  exportfs: be careful to only return expected errors.
  nfsd4: setclientid_confirm with unmatched verifier should fail
  nfsd: randomize SETCLIENTID reply to help distinguish servers
  nfsd: set the MAY_NOTIFY_LOCK flag in OPEN replies
  nfs: add a new NFS4_OPEN_RESULT_MAY_NOTIFY_LOCK constant
  nfsd: add a LRU list for blocked locks
  nfsd: have nfsd4_lock use blocking locks for v4.1+ locks
  nfsd: plumb in a CB_NOTIFY_LOCK operation
  NFSD: fix corruption in notifier registration
  svcrdma: support Remote Invalidation
  svcrdma: Server-side support for rpcrdma_connect_private
  rpcrdma: RDMA/CM private message data structure
  svcrdma: Skip put_page() when send_reply() fails
  svcrdma: Tail iovec leaves an orphaned DMA mapping
  nfsd: fix dprintk in nfsd4_encode_getdeviceinfo
  nfsd: eliminate cb_minorversion field
  nfsd: don't set a FL_LAYOUT lease for flexfiles layouts
2016-10-13 21:04:42 -07:00
Linus Torvalds 35a891be96 xfs: reflink update for 4.9-rc1
< XFS has gained super CoW powers! >
  ----------------------------------
         \   ^__^
          \  (oo)\_______
             (__)\       )\/\
                 ||----w |
                 ||     ||
 
 Included in this update:
 - unshare range (FALLOC_FL_UNSHARE) support for fallocate
 - copy-on-write extent size hints (FS_XFLAG_COWEXTSIZE) for fsxattr interface
 - shared extent support for XFS
 - copy-on-write support for shared extents
 - copy_file_range support
 - clone_file_range support (implements reflink)
 - dedupe_file_range support
 - defrag support for reverse mapping enabled filesystems
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJX/hrZAAoJEK3oKUf0dfodpwcQAKkTerNPhhDcthqWUJ2+jC7w
 JIuhKUg2GYojJhIJ4+Ue1knmuBeIusda+PzGls+6gdy7GDGdux/esRIJSe1W7A5G
 RNeumiSKVX5iYsZNUEX35O2a/SwUM1Sm5mcIFs4CxUwIRwE/cayNby6vrlVExvz7
 Ns6YYOI2bldUHLsxedg8MLG0it1JGTADB9gwGgb98bxQ3bD/UBn3TF9xTlj+ZH22
 ebnWsogSJOnUigOOSGeaQsmy1pJAhRIhvt+f481KuZak1pdQcK2feL4RcKw0NpNt
 15LCYRqX6RexC684VYgJZxXB4EKyfS2Bma71q41A7dz1x36kw7+wG18xasBqU++p
 GZwwL6si02rIGPMz1oD8xxZ0F97ADCGRmkgUHsCJKbP5UmGiP08K6GEN3osr5hAN
 xAmn9AxcprXVnV3WmnFxpBeWY/qCEsvSQqJuKSThYqAilqUc8wN2u5g/eEpE6mmg
 KEEhzaq5P4ovS/HOIQJWdBu1j5E9Mg2o/ncy87Q6uE+9Fa5AAP6GBWOtGcMwdFSU
 adbN7dqjgoHMyNHFrmePqyJYtOZ2hZovDlVndxnYysl5ZBfiBEEDISmr+x6KcSlo
 3kyOltYQLjEVu1sLOT3COCddn0jt5Lr1QhGeVepnrMlU2E1h4461viCNMDinJRIp
 OYoMOS+J83G2FEFwgXYM
 =Sa+Y
 -----END PGP SIGNATURE-----

Merge tag 'xfs-reflink-for-linus-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs

    < XFS has gained super CoW powers! >
     ----------------------------------
            \   ^__^
             \  (oo)\_______
                (__)\       )\/\
                    ||----w |
                    ||     ||

Pull XFS support for shared data extents from Dave Chinner:
 "This is the second part of the XFS updates for this merge cycle.  This
  pullreq contains the new shared data extents feature for XFS.

  Given the complexity and size of this change I am expecting - like the
  addition of reverse mapping last cycle - that there will be some
  follow-up bug fixes and cleanups around the -rc3 stage for issues that
  I'm sure will show up once the code hits a wider userbase.

  What it is:

  At the most basic level we are simply adding shared data extents to
  XFS - i.e. a single extent on disk can now have multiple owners. To do
  this we have to add new on-disk features to both track the shared
  extents and the number of times they've been shared. This is done by
  the new "refcount" btree that sits in every allocation group. When we
  share or unshare an extent, this tree gets updated.

  Along with this new tree, the reverse mapping tree needs to be updated
  to track each owner or a shared extent. This also needs to be updated
  ever share/unshare operation. These interactions at extent allocation
  and freeing time have complex ordering and recovery constraints, so
  there's a significant amount of new intent-based transaction code to
  ensure that operations are performed atomically from both the runtime
  and integrity/crash recovery perspectives.

  We also need to break sharing when writes hit a shared extent - this
  is where the new copy-on-write implementation comes in. We allocate
  new storage and copy the original data along with the overwrite data
  into the new location. We only do this for data as we don't share
  metadata at all - each inode has it's own metadata that tracks the
  shared data extents, the extents undergoing CoW and it's own private
  extents.

  Of course, being XFS, nothing is simple - we use delayed allocation
  for CoW similar to how we use it for normal writes. ENOSPC is a
  significant issue here - we build on the reservation code added in
  4.8-rc1 with the reverse mapping feature to ensure we don't get
  spurious ENOSPC issues part way through a CoW operation. These
  mechanisms also help minimise fragmentation due to repeated CoW
  operations. To further reduce fragmentation overhead, we've also
  introduced a CoW extent size hint, which indicates how large a region
  we should allocate when we execute a CoW operation.

  With all this functionality in place, we can hook up .copy_file_range,
  .clone_file_range and .dedupe_file_range and we gain all the
  capabilities of reflink and other vfs provided functionality that
  enable manipulation to shared extents. We also added a fallocate mode
  that explicitly unshares a range of a file, which we implemented as an
  explicit CoW of all the shared extents in a file.

  As such, it's a huge chunk of new functionality with new on-disk
  format features and internal infrastructure. It warns at mount time as
  an experimental feature and that it may eat data (as we do with all
  new on-disk features until they stabilise). We have not released
  userspace suport for it yet - userspace support currently requires
  download from Darrick's xfsprogs repo and build from source, so the
  access to this feature is really developer/tester only at this point.
  Initial userspace support will be released at the same time the kernel
  with this code in it is released.

  The new code causes 5-6 new failures with xfstests - these aren't
  serious functional failures but things the output of tests changing
  slightly due to perturbations in layouts, space usage, etc. OTOH,
  we've added 150+ new tests to xfstests that specifically exercise this
  new functionality so it's got far better test coverage than any
  functionality we've previously added to XFS.

  Darrick has done a pretty amazing job getting us to this stage, and
  special mention also needs to go to Christoph (review, testing,
  improvements and bug fixes) and Brian (caught several intricate bugs
  during review) for the effort they've also put in.

  Summary:

   - unshare range (FALLOC_FL_UNSHARE) support for fallocate

   - copy-on-write extent size hints (FS_XFLAG_COWEXTSIZE) for fsxattr
     interface

   - shared extent support for XFS

   - copy-on-write support for shared extents

   - copy_file_range support

   - clone_file_range support (implements reflink)

   - dedupe_file_range support

   - defrag support for reverse mapping enabled filesystems"

* tag 'xfs-reflink-for-linus-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs: (71 commits)
  xfs: convert COW blocks to real blocks before unwritten extent conversion
  xfs: rework refcount cow recovery error handling
  xfs: clear reflink flag if setting realtime flag
  xfs: fix error initialization
  xfs: fix label inaccuracies
  xfs: remove isize check from unshare operation
  xfs: reduce stack usage of _reflink_clear_inode_flag
  xfs: check inode reflink flag before calling reflink functions
  xfs: implement swapext for rmap filesystems
  xfs: refactor swapext code
  xfs: various swapext cleanups
  xfs: recognize the reflink feature bit
  xfs: simulate per-AG reservations being critically low
  xfs: don't mix reflink and DAX mode for now
  xfs: check for invalid inode reflink flags
  xfs: set a default CoW extent size of 32 blocks
  xfs: convert unwritten status of reverse mappings for shared files
  xfs: use interval query for rmap alloc operations on shared files
  xfs: add shared rmap map/unmap/convert log item types
  xfs: increase log reservations for reflink
  ...
2016-10-13 20:28:22 -07:00
Pavel Shilovsky de74025052 CIFS: Reset read oplock to NONE if we have mandatory locks after reopen
We are already doing the same thing for an ordinary open case:
we can't keep read oplock on a file if we have mandatory byte-range
locks because pagereading can conflict with these locks on a server.
Fix it by setting oplock level to NONE.

Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Steve French <smfrench@gmail.com>
2016-10-13 19:48:59 -05:00
Pavel Shilovsky f2cca6a7c9 CIFS: Fix persistent handles re-opening on reconnect
openFileList of tcon can be changed while cifs_reopen_file() is called
that can lead to an unexpected behavior when we return to the loop.
Fix this by introducing a temp list for keeping all file handles that
need to be reopen.

Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Steve French <smfrench@gmail.com>
2016-10-13 19:48:55 -05:00
Sachin Prabhu 166cea4dc3 SMB2: Separate RawNTLMSSP authentication from SMB2_sess_setup
We split the rawntlmssp authentication into negotiate and
authencate parts. We also clean up the code and add helpers.

Signed-off-by: Sachin Prabhu <sprabhu@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
2016-10-13 19:48:34 -05:00
Sachin Prabhu 3baf1a7b92 SMB2: Separate Kerberos authentication from SMB2_sess_setup
Add helper functions and split Kerberos authentication off
SMB2_sess_setup.

Signed-off-by: Sachin Prabhu <sprabhu@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
2016-10-13 19:48:30 -05:00
Germano Percossi cb978ac8b8 Expose cifs module parameters in sysfs
/sys/module/cifs/parameters should display the three
other module load time configuration settings for cifs.ko

Signed-off-by: Germano Percossi <germano.percossi@citrix.com>
Signed-off-by: Steve French <steve.french@primarydata.com>
2016-10-13 19:48:25 -05:00
Steve French 24df1483c2 Cleanup missing frees on some ioctls
Cleanup some missing mem frees on some cifs ioctls, and
clarify others to make more obvious that no data is returned.

CC: Stable <stable@vger.kernel.org>
Signed-off-by: Steve French <smfrench@gmail.com>
Acked-by: Sachin Prabhu <sprabhu@redhat.com>
2016-10-13 19:48:20 -05:00
Steve French 834170c859 Enable previous version support
Add ioctl to query previous versions of file

Allows listing snapshots on files on SMB3 mounts.

Signed-off-by: Steve French <smfrench@gmail.com>
2016-10-13 19:48:11 -05:00
Steve French 18dd8e1a65 Do not send SMB3 SET_INFO request if nothing is changing
[CIFS] We had cases where we sent a SMB2/SMB3 setinfo request with all
timestamp (and DOS attribute) fields marked as 0 (ie do not change)
e.g. on chmod or chown.

Signed-off-by: Steve French <steve.french@primarydata.com>
CC: Stable <stable@vger.kernel.org>
2016-10-13 19:46:51 -05:00
Dmitry Torokhov 1134ca268e Merge branch 'next' into for-linus
Prepare second round of input updates for 4.9 merge window.
2016-10-13 17:23:40 -07:00
Linus Torvalds 40bd3a5f34 PCI changes for the v4.9 merge window:
Altera host bridge driver
     Add local struct device pointers (Bjorn Helgaas)
     Remove unused platform data (Bjorn Helgaas)
     Remove redundant platform_get_resource() return value check (Bjorn Helgaas)
     Rename altera_pcie_valid_config() to altera_pcie_valid_device() (Bjorn Helgaas)
     Simplify TLB_CFG_DW0 usage (Bjorn Helgaas)
     Simplify TLP_CFG_DW1 usage (Bjorn Helgaas)
 
   APM X-Gene host bridge driver
     Add local struct device pointers (Bjorn Helgaas)
     Remove unused platform data (Bjorn Helgaas)
     Pass struct xgene_pcie_port to setup functions (Bjorn Helgaas)
     Add register accessors (Bjorn Helgaas)
 
   Axis ARTPEC-6 host bridge driver
     Add local struct device pointers (Bjorn Helgaas)
     Remove unused platform data (Bjorn Helgaas)
     Add register accessors (Bjorn Helgaas)
     Use generic DesignWare accessors (Bjorn Helgaas)
     Remove unnecessary artpec6_pcie_link_up() (Bjorn Helgaas)
     Pass device-specific struct to internal functions (Bjorn Helgaas)
     Add resource name comments (Bjorn Helgaas)
 
   Broadcom iProc host bridge driver
     Add local struct device pointers (Bjorn Helgaas)
     Set drvdata at end of probe function (Bjorn Helgaas)
     Validate CSR base in BCMA setup code (Bjorn Helgaas)
     Remove redundant null pointer checking (Bjorn Helgaas)
     Hard-code PCIe capability offset instead of searching (Bjorn Helgaas)
 
   Freescale i.MX6 host bridge driver
     Add local struct device pointers (Bjorn Helgaas)
     Remove redundant of_node pointer (Bjorn Helgaas)
     Removed unused struct imx6_pcie.mem_base (Bjorn Helgaas)
     Pass struct imx6_pcie to PHY accessors (Bjorn Helgaas)
     Pass device-specific struct to internal functions (Bjorn Helgaas)
     Use generic DesignWare accessors (Bjorn Helgaas)
     Reorder struct imx6_pcie (Bjorn Helgaas)
     Remove unused return values (Bjorn Helgaas)
 
   Freescale Layerscape host bridge driver
     Add local struct device pointers (Bjorn Helgaas)
     Remove unused platform data (Bjorn Helgaas)
     Remove redundant struct ls_pcie.dbi (Bjorn Helgaas)
     Pass device-specific struct to internal functions (Bjorn Helgaas)
     Move struct pcie_port setup to probe function (Bjorn Helgaas)
     Remove unused ls_add_pcie_port() platform_device arg (Bjorn Helgaas)
     Reorder struct ls_pcie (Bjorn Helgaas)
 
   HiSilicon host bridge driver
     Add local struct device pointers (Bjorn Helgaas)
     Remove unused platform data (Bjorn Helgaas)
     Name private struct pointer "hisi_pcie" consistently (Bjorn Helgaas)
     Remove redundant struct hisi_pcie.reg_base (Bjorn Helgaas)
     Use generic DesignWare accessors (Bjorn Helgaas)
     Include register block base in PCIE_SYS_STATE4 address (Bjorn Helgaas)
     Pass device-specific struct to internal functions (Bjorn Helgaas)
     Reorder struct hisi_pcie (Bjorn Helgaas)
 
   Marvell Aardvark host bridge driver
     Add local struct device pointers (Bjorn Helgaas)
     Remove unused platform data (Bjorn Helgaas)
     MAINTAINERS: Add DT binding to the Aardvark PCIe driver maintainer (Thomas Petazzoni)
 
   Marvell Armada host bridge driver
     Remove unused platform data (Bjorn Helgaas)
     Add local base pointer (Bjorn Helgaas)
     Remove redundant struct armada8k_pcie.base (Bjorn Helgaas)
     Use generic DesignWare accessors (Bjorn Helgaas)
     Pass device-specific struct to internal functions (Bjorn Helgaas)
     Reorder struct armada8k_pcie (Bjorn Helgaas)
     MAINTAINERS: Add maintainer for the PCIe Marvell Armada 8K driver (Thomas Petazzoni)
 
   Marvell MVEBU host bridge driver
     Add local struct device pointers (Bjorn Helgaas)
     Use existing of_node pointer (Bjorn Helgaas)
 
   NVIDIA Tegra host bridge driver
     Fix argument order in tegra_pcie_phy_disable() (Bjorn Helgaas)
     Add local struct device pointers (Bjorn Helgaas)
     Remove unused platform data (Bjorn Helgaas)
 
   Qualcomm host bridge driver
     Remove unused platform data (Bjorn Helgaas)
     Remove redundant struct qcom_pcie.dbi (Bjorn Helgaas)
     Remove redundant struct qcom_pcie.dev (Bjorn Helgaas)
     Reorder struct qcom_pcie (Bjorn Helgaas)
 
   Renesas R-Car host bridge driver
     Add local struct device pointers (Bjorn Helgaas)
     Remove unused platform data (Bjorn Helgaas)
     Remove unused rcar_pcie_get_resources() platform_device arg (Bjorn Helgaas)
     Remove DRV_NAME macro (Bjorn Helgaas)
     rcar-gen2: Add local struct device pointers (Bjorn Helgaas)
 
   Rockchip host bridge driver
     Remove unused platform data (Bjorn Helgaas)
     Indent "if" statement body (Dan Carpenter)
 
   Samsung Exynos host bridge driver
     Add local struct device pointers (Bjorn Helgaas)
     Uninline register accessors (Bjorn Helgaas)
     Name private struct pointer "exynos_pcie" consistently (Bjorn Helgaas)
     Pass device-specific struct to internal functions (Bjorn Helgaas)
     Reorder struct exynos_pcie (Bjorn Helgaas)
 
   ST Microelectronics SPEAr13xx host bridge driver
     Remove unused constants (Bjorn Helgaas)
     Pass device-specific struct to internal functions (Bjorn Helgaas)
     Reorder struct spear13xx_pcie (Bjorn Helgaas)
     Clean up struct device usage (Bjorn Helgaas)
 
   Synopsys DesignWare host bridge driver
     Rename dw_pcie_valid_config() to dw_pcie_valid_device() (Bjorn Helgaas)
     Simplify pcie_host_ops.readl_rc() and .writel_rc() interfaces (Bjorn Helgaas)
     Swap order of dw_pcie_writel_rc() reg/val arguments (Bjorn Helgaas)
     Export dw_pcie_readl_rc(), dw_pcie_writel_rc() (Bjorn Helgaas)
     Uninline register accessors (Bjorn Helgaas)
     Simplify dw_pcie_readl_unroll(), dw_pcie_writel_unroll() (Kishon Vijay Abraham I)
     Swap order of dw_pcie_writel_unroll() reg/val arguments (Bjorn Helgaas)
     designware-plat: Remove redundant dw_plat_pcie.mem_base (Bjorn Helgaas)
     designware-plat: Add local struct device pointers (Bjorn Helgaas)
     designware-plat: Remove unused platform data (Bjorn Helgaas)
 
   TI DRA7xx host bridge driver
     Add local struct device pointers (Bjorn Helgaas)
     Remove redundant struct device pointer from dra7xx_pcie (Bjorn Helgaas)
     Set drvdata at end of probe function (Bjorn Helgaas)
     Use generic DesignWare accessors (Bjorn Helgaas)
     Pass device-specific struct to internal functions (Bjorn Helgaas)
     Move struct pcie_port setup to probe function (Bjorn Helgaas)
     Reorder struct dra7xx_pcie (Bjorn Helgaas)
 
   TI Keystone host bridge driver
     Add local struct device pointers (Bjorn Helgaas)
     Use generic DesignWare accessors (Bjorn Helgaas)
     Pass keystone_pcie, not address, to IRQ functions (Bjorn Helgaas)
     Pass keystone_pcie, not va_app_base, to DBI functions (Bjorn Helgaas)
     Add app register accessors (Bjorn Helgaas)
     Reorder struct keystone_pcie (Bjorn Helgaas)
 
   Xilinx AXI host bridge driver
     Add local struct device pointers (Bjorn Helgaas)
     Remove unused platform data (Bjorn Helgaas)
     Removed unused xilinx_pcie_assign_msi() argument (Bjorn Helgaas)
 
   Xilinx NWL host bridge driver
     Add local struct device pointers (Bjorn Helgaas)
     Remove unused platform data (Bjorn Helgaas)
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJX/5JSAAoJEFmIoMA60/r8DgwQAL3rqok3OMp5mOFPTosLiGA5
 Pibrke/01imrOGT+vxo07K7AZhTkiOoVDDdwrYSOdTELc0bk8cjZUtjjzwQ0p1KP
 Xpq8mbX9EIZKrVhRYAFvtBMehw51l4D8RENF5GnyeJ04MDWzV7re1zsHuWAkUGC5
 9BP6DE0RGjddnyi8gRe39ZRVQofvZT9WgLb5LgnjpTgCpAcSBQBUlyynRlKcqmcY
 S2noNrIDb9KElpbw45egy11p79z6A6h9n6pfrzKff07Y3N1DFK2XeFoyoEHUnABM
 sicjjbR0W/udWm2eONLB8s1tYTJKL3zvNzWI1ywC3ESfmmt2iZ22pu0yxnjmdCRa
 vbBpQp/BfXH0yBd2Onl06EvyIBMEO35vBgiRUW/Su76JTh0jAHQh1k0lvK3l85qK
 mcpWQ5AwGquwywr3IhcAtuGI8SbrTZ2wElOJhRukwbZYF/RDKMKn71dSqd9ULTKl
 0w2hpeJW8Csl+2UwJQTtH9Pld3FXslBa1zM9WqUskxgbsch+ARb1zRwzXJj50E1A
 ekbWb/W7oxDPHKkK+hh5jc0zb/sEBdoBL0Vz1QuP7Al50b1FOS3tX4FdnfVZntTL
 vhDdo+0tCmbVAI6bRLPi0Q2Uyw6fl0f0preDXNs9siNDUjqRSqpGmY/qYXX97MRk
 /pFdD9BJw9uUONm4AQOf
 =Zq8E
 -----END PGP SIGNATURE-----

Merge tag 'pci-v4.9-changes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

PCI changes for the v4.9 merge window:
 "Here are some more changes I'd like to have in v4.9.  There's one
  small Tegra bug fix in the PHY poweroff path, which is only used in
  failure paths.

  The rest is all strictly cleanup that should make host bridge drivers
  more readable, but shouldn't actually change any behavior.

  Summary:

   - use local struct device pointers in many host bridge drivers for
     clarity

   - remove unused platform data

   - use generic DesignWare accessors

   - misc cleanups: remove redundant structure entries and re-order
     structure members to put comon generic fields first etc"

* tag 'pci-v4.9-changes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (108 commits)
  MAINTAINERS: Add maintainer for the PCIe Marvell Armada 8K driver
  MAINTAINERS: Add DT binding to the Aardvark PCIe driver maintainer
  PCI: rockchip: Indent "if" statement body
  PCI: hisi: Reorder struct hisi_pcie
  PCI: hisi: Pass device-specific struct to internal functions
  PCI: hisi: Include register block base in PCIE_SYS_STATE4 address
  PCI: dra7xx: Reorder struct dra7xx_pcie
  PCI: xilinx-nwl: Remove unused platform data
  PCI: xilinx-nwl: Add local struct device pointers
  PCI: xilinx: Removed unused xilinx_pcie_assign_msi() argument
  PCI: xilinx: Remove unused platform data
  PCI: xilinx: Add local struct device pointers
  PCI: xgene: Add register accessors
  PCI: xgene: Pass struct xgene_pcie_port to setup functions
  PCI: xgene: Remove unused platform data
  PCI: tegra: Remove unused platform data
  PCI: tegra: Add local struct device pointers
  PCI: tegra: Fix argument order in tegra_pcie_phy_disable()
  PCI: rockchip: Remove unused platform data
  PCI: rcar-gen2: Add local struct device pointers
  ...
2016-10-13 17:08:58 -07:00
Linus Torvalds 44dc8c9d68 platform-drivers-x86 for 4.9-1
Cleanups, refactoring, and a couple bug fixes.
 
 intel_pmc_core:
  - avoid boot time warning for !CONFIG_DEBUGFS_FS
 
 intel_pmc_ipc:
  - Convert to use platform_device_register_full
 
 asus-wmi:
  - Filter buggy scan codes on ASUS Q500A
 
 toshiba_bluetooth:
  - Decouple an error checking status code
 
 toshiba_haps:
  - Change logging level from info to debug
  - Split ACPI and HDD protection error handling
 
 asus-laptop:
  - get rid of parse_arg()
 
 asus-wmi:
  - fix asus ux303ub brightness issue
 
 toshiba_acpi:
  - Fix typo in *_cooling_method_set function
  - Change error checking logic from TCI functions
  - Clean up variable declaration
 -----BEGIN PGP SIGNATURE-----
 
 iQEcBAABAgAGBQJX/fUeAAoJEKbMaAwKp364UxoIAMA2UWY9qepIvVW+BA/4vTOH
 jqzLVtH0SnhAe1esjsZ3f2r8F0riXEz/pLWcE7cjV7nbmWQDGvSBAJHyALg5d7CJ
 lAaMjo+glxy2p/0HgHNWvlgXEhRSsc1slbIJMzwk8XWfX39o+LGU0MNar8uRtQML
 TRCFJ73d5maQcQIsZ4hPbPJjzHK3ExyLLimXj5fsFXYnIMBF5YsTfiwdTEnDQmm/
 8FIO+fdogSU+LOrS0/CKrpzB/TchapCdvqn0hTJEdRP9wSqHL4c1nk2c0EVywTZT
 cwHi3ABvoS7Q2gHl58Y02jeEl3e9rFJQ79Sk3Wxr58mpfqy+w1SwPsjyfnXOB4c=
 =AwRb
 -----END PGP SIGNATURE-----

Merge tag 'platform-drivers-x86-v4.9-1' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86

Pull x86 platform drivers updates from Darren Hart:
 "Cleanups, refactoring, and a couple bug fixes.

  intel_pmc_core:
   - avoid boot time warning for !CONFIG_DEBUGFS_FS

  intel_pmc_ipc:
   - Convert to use platform_device_register_full

  asus-wmi:
   - Filter buggy scan codes on ASUS Q500A

  toshiba_bluetooth:
   - Decouple an error checking status code

  toshiba_haps:
   - Change logging level from info to debug
   - Split ACPI and HDD protection error handling

  asus-laptop:
   - get rid of parse_arg()

  asus-wmi:
   - fix asus ux303ub brightness issue

  toshiba_acpi:
   - Fix typo in *_cooling_method_set function
   - Change error checking logic from TCI functions
   - Clean up variable declaration"

* tag 'platform-drivers-x86-v4.9-1' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86:
  platform/x86: intel_pmc_core: avoid boot time warning for !CONFIG_DEBUGFS_FS
  platform/x86: intel_pmc_ipc: Convert to use platform_device_register_full
  platform/x86: asus-wmi: Filter buggy scan codes on ASUS Q500A
  platform/x86: toshiba_bluetooth: Decouple an error checking status code
  platform/x86: toshiba_haps: Change logging level from info to debug
  platform/x86: toshiba_haps: Split ACPI and HDD protection error handling
  platform/x86: asus-laptop: get rid of parse_arg()
  platform/x86: asus-wmi: fix asus ux303ub brightness issue
  platform/x86: toshiba_acpi: Fix typo in *_cooling_method_set function
  platform/x86: toshiba_acpi: Change error checking logic from TCI functions
  platform/x86: toshiba_acpi: Clean up variable declaration
2016-10-13 16:52:39 -07:00
Linus Torvalds e3799a210d Merge git://www.linux-watchdog.org/linux-watchdog
Pull watchdog updates from Wim Van Sebroeck:

 - a new watchdog pretimeout governor framework

 - support to upload the firmware on the ziirave_wdt

 - several fixes and cleanups

* git://www.linux-watchdog.org/linux-watchdog: (26 commits)
  watchdog: imx2_wdt: add pretimeout function support
  watchdog: softdog: implement pretimeout support
  watchdog: pretimeout: add pretimeout_available_governors attribute
  watchdog: pretimeout: add option to select a pretimeout governor in runtime
  watchdog: pretimeout: add panic pretimeout governor
  watchdog: pretimeout: add noop pretimeout governor
  watchdog: add watchdog pretimeout governor framework
  watchdog: hpwdt: add support for iLO5
  fs: compat_ioctl: add pretimeout functions for watchdogs
  watchdog: add pretimeout support to the core
  watchdog: imx2_wdt: use preferred BIT macro instead of open coded values
  watchdog: st_wdt: Remove support for obsolete platforms
  watchdog: bindings: Remove obsolete platforms from dt doc.
  watchdog: mt7621_wdt: Remove assignment of dev pointer
  watchdog: rt2880_wdt: Remove assignment of dev pointer
  watchdog: constify watchdog_ops structures
  watchdog: tegra: constify watchdog_ops structures
  watchdog: iTCO_wdt: constify iTCO_wdt_pm structure
  watchdog: cadence_wdt: Fix the suspend resume
  watchdog: txx9wdt: Add missing clock (un)prepare calls for CCF
  ...
2016-10-13 16:44:20 -07:00
Hoan Tran c197d75803 cpufreq: CPPC: Correct desired_perf calculation
The desired_perf is an abstract performance number. Its value should
be in the range of [lowest perf, highest perf] of CPPC.
The correct calculation is
  desired_perf = freq * cppc_highest_perf / cppc_dmi_max_khz

And cppc_cpufreq_set_target() returns if desired_perf is exactly
the same with the old perf.

Signed-off-by: Hoan Tran <hotran@apm.com>
Reviewed-by: Prashanth Prakash <pprakash@codeaurora.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-10-13 23:10:41 +02:00
Nikolay Aleksandrov 4eb6753c33 net: bridge: add the multicast_flood flag attribute to brport_attrs
When I added the multicast flood control flag, I also added an attribute
for it for sysfs similar to other flags, but I forgot to add it to
brport_attrs.

Fixes: b6cb5ac833 ("net: bridge: add per-port multicast flood flag")
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 12:16:36 -04:00
Tobias Klauser 5852e93d4b net: axienet: Remove unused parameter from __axienet_device_reset
The dev parameter passed to __axienet_device_reset() is not used inside
the function, so remove it.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Reviewed-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 12:15:28 -04:00
Dan Carpenter 10f6c4d6ab liquidio: CN23XX: fix a loop timeout
This is supposed to loop 1000 times and then give up.  The problem is
it's a post-op and after the loop we test if "loop" is zero when really
it would be -1.  Fix this by making it a pre-op.

Fixes: 1b7c55c453 ("liquidio: CN23XX queue manipulation")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 12:12:50 -04:00
Dan Carpenter 775f4f0550 net: rtnl: info leak in rtnl_fill_vfinfo()
The "vf_vlan_info" struct ends with a 2 byte struct hole so we have to
memset it to ensure that no stack information is revealed to user space.

Fixes: 79aab093a0 ('net: Update API for VF vlan protocol 802.1ad support')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 12:12:04 -04:00
Dan Carpenter 7307616245 tipc: info leak in __tipc_nl_add_udp_addr()
We should clear out the padding and unused struct members so that we
don't expose stack information to userspace.

Fixes: fdb3accc2c ('tipc: add the ability to get UDP options via netlink')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 12:10:01 -04:00
David Ahern 6104e112f4 net: ipv4: Do not drop to make_route if oif is l3mdev
Commit e0d56fdd73 was a bit aggressive removing l3mdev calls in
the IPv4 stack. If the fib_lookup fails we do not want to drop to
make_route if the oif is an l3mdev device.

Also reverts 19664c6a00 ("net: l3mdev: Remove netif_index_is_l3_master")
which removed netif_index_is_l3_master.

Fixes: e0d56fdd73 ("net: l3mdev: remove redundant calls")
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 12:05:26 -04:00
Andrew Lunn 3c293f4e08 net: phy: Trigger state machine on state change and not polling.
The phy_start() is used to indicate the PHY is now ready to do its
work. The state is changed, normally to PHY_UP which means that both
the MAC and the PHY are ready.

If the phy driver is using polling, when the next poll happens, the
state machine notices the PHY is now in PHY_UP, and kicks off
auto-negotiation, if needed.

If however, the PHY is using interrupts, there is no polling. The phy
is stuck in PHY_UP until the next interrupt comes along. And there is
no reason for the PHY to interrupt.

Have phy_start() schedule the state machine to run, which both speeds
up the polling use case, and makes the interrupt use case actually
work.

This problems exists whenever there is a state change which will not
cause an interrupt. Trigger the state machine in these cases,
e.g. phy_error().

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Cc: Kyle Roeschley <kyle.roeschley@ni.com>
Tested-by: Kyle Roeschley <kyle.roeschley@ni.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 12:03:47 -04:00
Ralf Baechle 38b8767462 Documentation: MIPS supports HAVE_REGS_AND_STACK_ACCESS_API
This should have been part of 40e084a506 ('MIPS: Add uprobes support.').

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Fixes: 40e084a506 ("MIPS: Add uprobes support.")
Acked-by: Jonathan Corbet <corbet@lwn.net>
Cc: linux-mips@linux-mips.org
Cc: linux-doc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/14392/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-10-13 17:19:19 +02:00
Eric Dumazet 8ce48623f0 ipv6: tcp: restore IP6CB for pktoptions skbs
Baozeng Ding reported following KASAN splat :

BUG: KASAN: use-after-free in ip6_datagram_recv_specific_ctl+0x13f1/0x15c0 at addr ffff880029c84ec8
Read of size 1 by task poc/25548
Call Trace:
 [<ffffffff82cf43c9>] dump_stack+0x12e/0x185 /lib/dump_stack.c:15
 [<     inline     >] print_address_description /mm/kasan/report.c:204
 [<ffffffff817ced3b>] kasan_report_error+0x48b/0x4b0 /mm/kasan/report.c:283
 [<     inline     >] kasan_report /mm/kasan/report.c:303
 [<ffffffff817ced9e>] __asan_report_load1_noabort+0x3e/0x40 /mm/kasan/report.c:321
 [<ffffffff85c71da1>] ip6_datagram_recv_specific_ctl+0x13f1/0x15c0 /net/ipv6/datagram.c:687
 [<ffffffff85c734c3>] ip6_datagram_recv_ctl+0x33/0x40
 [<ffffffff85c0b07c>] do_ipv6_getsockopt.isra.4+0xaec/0x2150
 [<ffffffff85c0c7f6>] ipv6_getsockopt+0x116/0x230
 [<ffffffff859b5a12>] tcp_getsockopt+0x82/0xd0 /net/ipv4/tcp.c:3035
 [<ffffffff855fb385>] sock_common_getsockopt+0x95/0xd0 /net/core/sock.c:2647
 [<     inline     >] SYSC_getsockopt /net/socket.c:1776
 [<ffffffff855f8ba2>] SyS_getsockopt+0x142/0x230 /net/socket.c:1758
 [<ffffffff8685cdc5>] entry_SYSCALL_64_fastpath+0x23/0xc6
Memory state around the buggy address:
 ffff880029c84d80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff880029c84e00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> ffff880029c84e80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                                              ^
 ffff880029c84f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff880029c84f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff

He also provided a syzkaller reproducer.

Issue is that ip6_datagram_recv_specific_ctl() expects to find IP6CB
data that was moved at a different place in tcp_v6_rcv()

This patch moves tcp_v6_restore_cb() up and calls it from
tcp_v6_do_rcv() when np->pktoptions is set.

Fixes: 971f10eca1 ("tcp: better TCP_SKB_CB layout to reduce cache line misses")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Baozeng Ding <sploving1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 11:07:34 -04:00
David S. Miller 3f2b0a5a35 netvsc: Remove mistaken udp.h inclusion.
Based upon v2 of Stephen's patch.

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 11:04:07 -04:00
Arnd Bergmann f112be65fd xen-netback: fix type mismatch warning
Wiht the latest rework of the xen-netback driver, we get a warning
on ARM about the types passed into min():

drivers/net/xen-netback/rx.c: In function 'xenvif_rx_next_chunk':
include/linux/kernel.h:739:16: error: comparison of distinct pointer types lacks a cast [-Werror]

The reason is that XEN_PAGE_SIZE is not size_t here. There
is no actual bug, and we can easily avoid the warning using the
min_t() macro instead of min().

Fixes: eb1723a29b ("xen-netback: refactor guest rx")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Paul Durrant <paul.durrant@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 11:02:25 -04:00
Giuseppe CAVALLARO 7086605a6a stmmac: fix error check when init ptp
This patch fixes a problem when propagated the
failure of ptp_clock_register to open function.

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre TORGUE <alexandre.torgue@st.com>
Cc: Rayagond Kokatanur <rayagond@vayavyalabs.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 11:00:51 -04:00
Giuseppe CAVALLARO be9b3174c4 stmmac: fix ptp init for gmac4
The gmac 4.x version has not extended descriptors
(that are available on 3.x instead of).
While initializing the PTP module, the advanced PTP was
enabled in case of extended descriptors. This cannot be
applied for 4.x version where only the hardware capability
register has to show if the feature is present.
Patch also adds some extra netdev_(debug/inof) to better
dump the configuration.

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre TORGUE <alexandre.torgue@st.com>
Cc: Rayagond Kokatanur <rayagond@vayavyalabs.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 11:00:50 -04:00
Arnd Bergmann d4e991313b qed: fix old-style function definition
The definition of qed_get_rdma_ops() is not a prototype unless
we add 'void' here, as indicated by this W=1 warning:

drivers/net/ethernet/qlogic/qed/qed_roce.c: In function ‘qed_get_rdma_ops’:
drivers/net/ethernet/qlogic/qed/qed_roce.c:2950:28: error: old-style function definition [-Werror=old-style-definition]

Fixes: abd49676c7 ("qed: Add RoCE ll2 & GSI support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Yuval Mintz <Yuval.Mintz@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 10:52:55 -04:00
stephen hemminger ad19bc8a95 netvsc: fix checksum on UDP IPV6
The software calculation of UDP checksum in Netvsc driver was
only handling IPv4 case. By using skb_checksum_help() instead
all protocols can be handled. Rearrange code to eliminate goto
and look like other drivers.

This is a temporary solution; recent versions of Window Server etc
do support UDP checksum offload, just need to do the appropriate negotiation
with host to validate before using. This will be done in later patch.

Please queue this for -stable as well.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 10:48:17 -04:00
WANG Cong ab102b80ce net_sched: reorder pernet ops and act ops registrations
Krister reported a kernel NULL pointer dereference after
tcf_action_init_1() invokes a_o->init(), it is a race condition
where one thread calling tcf_register_action() to initialize
the netns data after putting act ops in the global list and
the other thread searching the list and then calling
a_o->init(net, ...).

Fix this by moving the pernet ops registration before making
the action ops visible. This is fine because: a) we don't
rely on act_base in pernet ops->init(), b) in the worst case we
have a fully initialized netns but ops is still not ready so
new actions still can't be created.

Reported-by: Krister Johansen <kjlx@templeofstupid.com>
Tested-by: Krister Johansen <kjlx@templeofstupid.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 10:26:43 -04:00
David Vrabel d1ef006dc1 xen-netback: fix guest Rx stall detection (after guest Rx refactor)
If a VIF has been ready for rx_stall_timeout (60s by default) and an
Rx ring is drained of all requests an Rx stall will be incorrectly
detected.  When this occurs and the guest Rx queue is empty, the Rx
ring's event index will not be set and the frontend will not raise an
event when new requests are placed on the ring, permanently stalling
the VIF.

This is a regression introduced by eb1723a29b (xen-netback:
refactor guest rx).

Fix this by reinstating the setting of queue->last_rx_time when
placing a packet onto the guest Rx ring.

Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Paul Durrant <paul.durrant@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 10:20:58 -04:00
Vlad Tsyrklevich 02a9079c66 drivers/ptp: Fix kernel memory disclosure
The reserved field precise_offset->rsv is not cleared before being
copied to user space, leaking kernel stack memory. Clear the struct
before it's copied.

Signed-off-by: Vlad Tsyrklevich <vlad@tsyrklevich.net>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 10:20:06 -04:00
Tom Herbert b8a4ddb2e8 net/mlx5: Add MLX5_ARRAY_SET64 to fix BUILD_BUG_ON
I am hitting this in mlx5:

drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c: In function
reclaim_pages_cmd.clone.0:
drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c:346: error: call
to __compiletime_assert_346 declared with attribute error:
BUILD_BUG_ON failed: __mlx5_bit_off(manage_pages_out, pas[i]) % 64
drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c: In function give_pages:
drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c:291: error: call
to __compiletime_assert_291 declared with attribute error:
BUILD_BUG_ON failed: __mlx5_bit_off(manage_pages_in, pas[i]) % 64

Problem is that this is doing a BUILD_BUG_ON on a non-constant
expression because of trying to take offset of pas[i] in the
structure.

Fix is to create MLX5_ARRAY_SET64 that takes an additional argument
that is the field index to separate between BUILD_BUG_ON on the array
constant field and the indexed field to assign the value to.
There are two callers of MLX5_SET64 that are trying to get a variable
offset, change those to call MLX5_ARRAY_SET64 passing 'pas' and 'i'
as the arguments to use in the offset check and the indexed value
assignment.

Fixes: a533ed5e17 ("net/mlx5: Pages management commands via mlx5 ifc")
Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 10:13:24 -04:00
Bjørn Mork 9a765881bf qmi_wwan: add support for Quectel EC21 and EC25
The Quectel EC21 and EC25 need the same "set DTR" request as devices
based on the MDM9230 chipset, but has no USB3 support. Our best guess
is that the "set DTR" functionality depends on chipset and/or
baseband firmware generation. But USB3 is still an optional feature.

Since we cannot enable this unconditionally for all older devices, and
there doesn't appear to be anything we can use in the USB descriptors
to identify these chips, we are forced to use a device specific quirk
flag.

Reported-and-tested-by: Sebastian Sjoholm <sebastian.sjoholm@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 10:05:06 -04:00
David S. Miller 4013bee5f0 Merge branch 'ovs-8021AD-fixes'
Jiri Benc says:

====================
openvswitch: vlan fixes

Fix three issues introduced by the 802.1AD patchset.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 10:03:24 -04:00
Jiri Benc 3145c037e7 openvswitch: add NETIF_F_HW_VLAN_STAG_TX to internal dev
The internal device does support 802.1AD offloading since 018c1dda5f
("openvswitch: 802.1AD Flow handling, actions, vlan parsing, netlink
attributes").

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
Acked-by: Eric Garver <e@erig.me>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 10:03:23 -04:00
Jiri Benc 72ec108d70 openvswitch: fix vlan subtraction from packet length
When the packet has its vlan tag in skb->vlan_tci, the length of the VLAN
header is not counted in skb->len. It doesn't make sense to subtract it.

Fixes: 018c1dda5f ("openvswitch: 802.1AD Flow handling, actions, vlan parsing, netlink attributes")
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
Acked-by: Eric Garver <e@erig.me>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 10:03:23 -04:00
Jiri Benc 20ecf1e4e3 openvswitch: vlan: remove wrong likely statement
This code is called whenever flow key is being extracted from the packet.
The packet may be as likely vlan tagged as not.

Fixes: 018c1dda5f ("openvswitch: 802.1AD Flow handling, actions, vlan parsing, netlink attributes")
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
Acked-by: Eric Garver <e@erig.me>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 10:03:23 -04:00
Wei Yongjun 88a2428b83 qed: Fix to use list_for_each_entry_safe() when delete items
Since we will remove items off the list using list_del() we need
to use a safe version of the list_for_each_entry() macro aptly named
list_for_each_entry_safe().

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Yuval Mintz <Yuval.Mintz@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 09:57:10 -04:00
Arnd Bergmann 1e09c106a4 tlan: avoid unused label with PCI=n
While build testing with randconfig on x86, I ran into this warning
that appears to have been around forever

drivers/net/ethernet/ti/tlan.c: In function ‘tlan_probe1’:
drivers/net/ethernet/ti/tlan.c:614:1: error: label ‘err_out’ defined but not used [-Werror=unused-label]

This can be trivially avoided by just moving the label into the
existing #ifdef.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 09:56:00 -04:00