Commit Graph

736606 Commits

Author SHA1 Message Date
Mathieu Desnoyers ac65ddad4a Documentation/features, membarriers: Document membarrier-sync-core architecture support
Ensure we gather architecture requirements about each architecture
supporting the "sync_core" membarrier command in a single file under
Documentation/features.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrea Parri <parri.andrea@gmail.com>
Cc: Andrew Hunter <ahh@google.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Avi Kivity <avi@scylladb.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Dave Watson <davejwatson@fb.com>
Cc: David Sehr <sehr@google.com>
Cc: Greg Hackmann <ghackmann@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Maged Michael <maged.michael@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-api@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-doc@vger.kernel.org
Link: http://lkml.kernel.org/r/1518208256-22034-1-git-send-email-mathieu.desnoyers@efficios.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-02-11 12:19:03 +01:00
Mathieu Desnoyers 26be459c9c Documentation/features: Allow comments in arch features files
The list-arch.sh script considers lines beginning with "#" as match for
the feature table.

Given that those tables are never in lines beginning with "#",
add a reverse grep on "^#" when matching the "ok/TODO" state of
the architecture.

This allows adding comments within the feature files, for instance
describing the architecture requirements for the feature in each
architecture.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-doc@vger.kernel.org
Link: http://lkml.kernel.org/r/1518282058-24226-1-git-send-email-mathieu.desnoyers@efficios.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-02-11 12:18:50 +01:00
Linus Torvalds f1517df870 This request is late, apologies.
But it's also a fairly small update this time around.  Some cleanup,
 RDMA fixes, overlayfs fixes, and a fix for an NFSv4 state bug.
 
 The bigger deal for nfsd this time around is Jeff Layton's
 already-merged i_version patches.  This series has a minor conflict with
 that one, and the resolution should be obvious.  (Stephen Rothwell has
 been carrying it in linux-next for what it's worth.)
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Merge tag 'nfsd-4.16' of git://linux-nfs.org/~bfields/linux

Pull nfsd update from Bruce Fields:
 "A fairly small update this time around. Some cleanup, RDMA fixes,
  overlayfs fixes, and a fix for an NFSv4 state bug.

  The bigger deal for nfsd this time around was Jeff Layton's
  already-merged i_version patches"

* tag 'nfsd-4.16' of git://linux-nfs.org/~bfields/linux:
  svcrdma: Fix Read chunk round-up
  NFSD: hide unused svcxdr_dupstr()
  nfsd: store stat times in fill_pre_wcc() instead of inode times
  nfsd: encode stat->mtime for getattr instead of inode->i_mtime
  nfsd: return RESOURCE not GARBAGE_ARGS on too many ops
  nfsd4: don't set lock stateid's sc_type to CLOSED
  nfsd: Detect unhashed stids in nfsd4_verify_open_stid()
  sunrpc: remove dead code in svc_sock_setbufsize
  svcrdma: Post Receives in the Receive completion handler
  nfsd4: permit layoutget of executable-only files
  lockd: convert nlm_rqst.a_count from atomic_t to refcount_t
  lockd: convert nlm_lockowner.count from atomic_t to refcount_t
  lockd: convert nsm_handle.sm_count from atomic_t to refcount_t
2018-02-08 15:18:32 -08:00
Linus Torvalds 9d21874da8 Merge branch 'idr-2018-02-06' of git://git.infradead.org/users/willy/linux-dax
Pull idr updates from Matthew Wilcox:

 - test-suite improvements

 - replace the extended API by improving the normal API

 - performance improvement for IDRs which are 1-based rather than
   0-based

 - add documentation

* 'idr-2018-02-06' of git://git.infradead.org/users/willy/linux-dax:
  idr: Add documentation
  idr: Make 1-based IDRs more efficient
  idr: Warn if old iterators see large IDs
  idr: Rename idr_for_each_entry_ext
  idr: Remove idr_alloc_ext
  cls_u32: Convert to idr_alloc_u32
  cls_u32: Reinstate cyclic allocation
  cls_flower: Convert to idr_alloc_u32
  cls_bpf: Convert to use idr_alloc_u32
  cls_basic: Convert to use idr_alloc_u32
  cls_api: Convert to idr_alloc_u32
  net sched actions: Convert to use idr_alloc_u32
  idr: Add idr_alloc_u32 helper
  idr: Delete idr_find_ext function
  idr: Delete idr_replace_ext function
  idr: Delete idr_remove_ext function
  IDR test suite: Check handling negative end correctly
  idr test suite: Fix ida_test_random()
  radix tree test suite: Remove ARRAY_SIZE
2018-02-08 14:39:29 -08:00
Linus Torvalds 4ed8244ef8 - update includes for gcc 8 (Valdis Kletnieks)
- update initializers for gcc 8
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Merge tag 'gcc-plugins-v4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull gcc plugins updates from Kees Cook:

 - update includes for gcc 8 (Valdis Kletnieks)

 - update initializers for gcc 8

* tag 'gcc-plugins-v4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  gcc-plugins: Use dynamic initializers
  gcc-plugins: Add include required by GCC release 8
2018-02-08 14:37:32 -08:00
Linus Torvalds a0f79386a4 Mostly cleanups, but three bug fixes:
1. don't pass garbage return codes back up the call chain (Mike Marshall)
 
  2. fix stale inode test (Martin Brandenburg)
 
  3. fix off-by-one errors (Xiongfeng Wang)
 
 Also: add Martin as a reviewer in the Maintainers file.
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Merge tag 'for-linus-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux

Pull orangefs updates from Mike Marshall:
 "Mostly cleanups, but three bug fixes:

   - don't pass garbage return codes back up the call chain (Mike
     Marshall)

   - fix stale inode test (Martin Brandenburg)

   - fix off-by-one errors (Xiongfeng Wang)

  Also add Martin as a reviewer in the Maintainers file"

* tag 'for-linus-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux:
  orangefs: reverse sense of is-inode-stale test in d_revalidate
  orangefs: simplify orangefs_inode_is_stale
  Orangefs: don't propogate whacky error codes
  orangefs: use correct string length
  orangefs: make orangefs_make_bad_inode static
  orangefs: remove ORANGEFS_KERNEL_DEBUG
  orangefs: remove gossip_ldebug and gossip_lerr
  orangefs: make orangefs_client_debug_init static
  MAINTAINERS: update orangefs list and add myself as reviewer
2018-02-08 12:20:41 -08:00
Linus Torvalds 81153336eb AFS development
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Merge tag 'afs-next-20180208' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs

Pull afs updates from David Howells:
 "Four fixes:

   - add a missing put

   - two fixes to reset the address iteration cursor correctly

   - fix setting up the fileserver iteration cursor.

  Two cleanups:

   - remove some dead code

   - rearrange a function to be more logically laid out

  And one new feature:

   - Support AFS dynamic root.

     With this one should be able to do, say:

        mkdir /afs
        mount -t afs none /afs -o dyn

     to create a dynamic root and then, provided you have keyutils
     installed, do:

        ls /afs/grand.central.org

     and:

        ls /afs/umich.edu

     to list the root volumes of both those organisations' AFS cells
     without requiring any other setup (the kernel upcall to a program
     in the keyutils package to do DNS access as does NFS)"

* tag 'afs-next-20180208' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
  afs: Support the AFS dynamic root
  afs: Rearrange afs_select_fileserver() a little
  afs: Remove unused code
  afs: Fix server list handling
  afs: Need to clear responded flag in addr cursor
  afs: Fix missing cursor clearance
  afs: Add missing afs_put_cell()
2018-02-08 12:12:04 -08:00
Linus Torvalds ef9417e8a9 IOMMU Updates for Linux v4.16
Including:
 
 	- 5-level page-table support for the Intel IOMMU.
 
 	- Error reporting improvements for the AMD IOMMU driver
 
 	- Additional DT bindings for ipmmu-vmsa (Renesas)
 
 	- Smaller fixes and cleanups
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Merge tag 'iommu-updates-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull IOMMU updates from Joerg Roedel:
 "This time there are not a lot of changes coming from the IOMMU side.

  That is partly because I returned from my parental leave late in the
  development process and probably partly because everyone was busy with
  Spectre and Meltdown mitigation work and didn't find the time for
  IOMMU work. So here are the few changes that queued up for this merge
  window:

   - 5-level page-table support for the Intel IOMMU.

   - error reporting improvements for the AMD IOMMU driver

   - additional DT bindings for ipmmu-vmsa (Renesas)

   - small fixes and cleanups"

* tag 'iommu-updates-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu: Clean up of_iommu_init_fn
  iommu/ipmmu-vmsa: Remove redundant of_iommu_init_fn hook
  iommu/msm: Claim bus ops on probe
  iommu/vt-d: Enable 5-level paging mode in the PASID entry
  iommu/vt-d: Add a check for 5-level paging support
  iommu/vt-d: Add a check for 1GB page support
  iommu/vt-d: Enable upto 57 bits of domain address width
  iommu/vt-d: Use domain instead of cache fetching
  iommu/exynos: Don't unconditionally steal bus ops
  iommu/omap: Fix debugfs_create_*() usage
  iommu/vt-d: clean up pr_irq if request_threaded_irq fails
  iommu: Check the result of iommu_group_get() for NULL
  iommu/ipmmu-vmsa: Add r8a779(70|95) DT bindings
  iommu/ipmmu-vmsa: Add r8a7796 DT binding
  iommu/amd: Set the device table entry PPR bit for IOMMU V2 devices
  iommu/amd - Record more information about unknown events
2018-02-08 12:03:54 -08:00
Linus Torvalds 605dc7761d Merge branch 'pcmcia' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia
Pull pcmcia updates from Dominik Brodowski:
 "The linux-pcmcia mailing list was shut down, so offer an alternative
  path for patches in MAINTAINERS.

  Also, throw in two odd fixes for the pcmcia subsystem"

* 'pcmcia' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia:
  pcmcia: soc_common: Handle return value of clk_prepare_enable
  pcmcia: use proper printk format for resource
  pcmcia: remove mailing list, update MAINTAINERS
2018-02-08 11:48:49 -08:00
Linus Torvalds fe26adf431 nouveau features, i915 + amdgpu fixes
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Merge tag 'drm-for-v4.16-part2-fixes' of git://people.freedesktop.org/~airlied/linux

Pull more drm updates from Dave Airlie:
 "Ben missed sending his nouveau tree, but he really didn't have much
  stuff in it:

   - GP108 acceleration support is enabled by "secure boot" support

   - some clockgating work on Kepler, and bunch of fixes

   - the bulk of the diff is regenerated firmware files, the change to
     them really isn't that large.

  Otherwise this contains regular Intel and AMDGPU fixes"

* tag 'drm-for-v4.16-part2-fixes' of git://people.freedesktop.org/~airlied/linux: (59 commits)
  drm/i915/bios: add DP max link rate to VBT child device struct
  drm/i915/cnp: Properly handle VBT ddc pin out of bounds.
  drm/i915/cnp: Ignore VBT request for know invalid DDC pin.
  drm/i915/cmdparser: Do not check past the cmd length.
  drm/i915/cmdparser: Check reg_table_count before derefencing.
  drm/i915/bxt, glk: Increase PCODE timeouts during CDCLK freq changing
  drm/i915/gvt: Use KVM r/w to access guest opregion
  drm/i915/gvt: Fix aperture read/write emulation when enable x-no-mmap=on
  drm/i915/gvt: only reset execlist state of one engine during VM engine reset
  drm/i915/gvt: refine intel_vgpu_submission_ops as per engine ops
  drm/amdgpu: re-enable CGCG on CZ and disable on ST
  drm/nouveau/clk: fix gcc-7 -Wint-in-bool-context warning
  drm/nouveau/mmu: Fix trailing semicolon
  drm/nouveau: Introduce NvPmEnableGating option
  drm/nouveau: Add support for SLCG for Kepler2
  drm/nouveau: Add support for BLCG on Kepler2
  drm/nouveau: Add support for BLCG on Kepler1
  drm/nouveau: Add support for basic clockgating on Kepler1
  drm/nouveau/kms/nv50: fix handling of gamma since atomic conversion
  drm/nouveau/kms/nv50: use INTERPOLATE_257_UNITY_RANGE LUT on newer chipsets
  ...
2018-02-08 11:42:05 -08:00
Linus Torvalds 9e95dae76b Things have been very quiet on the rbd side, as work continues on the
big ticket items slated for the next merge window.
 
 On the CephFS side we have a large number of cap handling improvements,
 a fix for our long-standing abuse of ->journal_info in ceph_readpages()
 and yet another dentry pointer management patch.
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Merge tag 'ceph-for-4.16-rc1' of git://github.com/ceph/ceph-client

Pull ceph updates from Ilya Dryomov:
 "Things have been very quiet on the rbd side, as work continues on the
  big ticket items slated for the next merge window.

  On the CephFS side we have a large number of cap handling
  improvements, a fix for our long-standing abuse of ->journal_info in
  ceph_readpages() and yet another dentry pointer management patch"

* tag 'ceph-for-4.16-rc1' of git://github.com/ceph/ceph-client:
  ceph: improving efficiency of syncfs
  libceph: check kstrndup() return value
  ceph: try to allocate enough memory for reserved caps
  ceph: fix race of queuing delayed caps
  ceph: delete unreachable code in ceph_check_caps()
  ceph: limit rate of cap import/export error messages
  ceph: fix incorrect snaprealm when adding caps
  ceph: fix un-balanced fsc->writeback_count update
  ceph: track read contexts in ceph_file_info
  ceph: avoid dereferencing invalid pointer during cached readdir
  ceph: use atomic_t for ceph_inode_info::i_shared_gen
  ceph: cleanup traceless reply handling for rename
  ceph: voluntarily drop Fx cap for readdir request
  ceph: properly drop caps for setattr request
  ceph: voluntarily drop Lx cap for link/rename requests
  ceph: voluntarily drop Ax cap for requests that create new inode
  rbd: whitelist RBD_FEATURE_OPERATIONS feature bit
  rbd: don't NULL out ->obj_request in rbd_img_obj_parent_read_full()
  rbd: use kmem_cache_zalloc() in rbd_img_request_create()
  rbd: obj_request->completion is unused
2018-02-08 11:38:59 -08:00
Nicolas Pitre a8c6db00bf cramfs: better MTD dependency expression
Commit b9f5fb1800 ("cramfs: fix MTD dependency") did what it says.

Since commit 9059a3493e ("kconfig: fix relational operators for bool
and tristate symbols") it is possible to do it slightly better though.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-02-08 11:37:31 -08:00
Linus Torvalds c013632192 2nd set of arm64 updates for 4.16:
Spectre v1 mitigation:
 - back-end version of array_index_mask_nospec()
 - masking of the syscall number to restrict speculation through the
   syscall table
 - masking of __user pointers prior to deference in uaccess routines
 
 Spectre v2 mitigation update:
 - using the new firmware SMC calling convention specification update
 - removing the current PSCI GET_VERSION firmware call mitigation as
   vendors are deploying new SMCCC-capable firmware
 - additional branch predictor hardening for synchronous exceptions and
   interrupts while in user mode
 
 Meltdown v3 mitigation update for Cavium Thunder X: unaffected but
 hardware erratum gets in the way. The kernel now starts with the page
 tables mapped as global and switches to non-global if kpti needs to be
 enabled.
 
 Other:
 - Theoretical trylock bug fixed
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull more arm64 updates from Catalin Marinas:
 "As I mentioned in the last pull request, there's a second batch of
  security updates for arm64 with mitigations for Spectre/v1 and an
  improved one for Spectre/v2 (via a newly defined firmware interface
  API).

  Spectre v1 mitigation:

   - back-end version of array_index_mask_nospec()

   - masking of the syscall number to restrict speculation through the
     syscall table

   - masking of __user pointers prior to deference in uaccess routines

  Spectre v2 mitigation update:

   - using the new firmware SMC calling convention specification update

   - removing the current PSCI GET_VERSION firmware call mitigation as
     vendors are deploying new SMCCC-capable firmware

   - additional branch predictor hardening for synchronous exceptions
     and interrupts while in user mode

  Meltdown v3 mitigation update:

    - Cavium Thunder X is unaffected but a hardware erratum gets in the
      way. The kernel now starts with the page tables mapped as global
      and switches to non-global if kpti needs to be enabled.

  Other:

   - Theoretical trylock bug fixed"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (38 commits)
  arm64: Kill PSCI_GET_VERSION as a variant-2 workaround
  arm64: Add ARM_SMCCC_ARCH_WORKAROUND_1 BP hardening support
  arm/arm64: smccc: Implement SMCCC v1.1 inline primitive
  arm/arm64: smccc: Make function identifiers an unsigned quantity
  firmware/psci: Expose SMCCC version through psci_ops
  firmware/psci: Expose PSCI conduit
  arm64: KVM: Add SMCCC_ARCH_WORKAROUND_1 fast handling
  arm64: KVM: Report SMCCC_ARCH_WORKAROUND_1 BP hardening support
  arm/arm64: KVM: Turn kvm_psci_version into a static inline
  arm/arm64: KVM: Advertise SMCCC v1.1
  arm/arm64: KVM: Implement PSCI 1.0 support
  arm/arm64: KVM: Add smccc accessors to PSCI code
  arm/arm64: KVM: Add PSCI_VERSION helper
  arm/arm64: KVM: Consolidate the PSCI include files
  arm64: KVM: Increment PC after handling an SMC trap
  arm: KVM: Fix SMCCC handling of unimplemented SMC/HVC calls
  arm64: KVM: Fix SMCCC handling of unimplemented SMC/HVC calls
  arm64: entry: Apply BP hardening for suspicious interrupts from EL0
  arm64: entry: Apply BP hardening for high-priority synchronous exceptions
  arm64: futex: Mask __user pointers prior to dereference
  ...
2018-02-08 10:44:25 -08:00
Linus Torvalds 846ade7dd2 virtio, vhost: fixes, cleanups, features
This includes the disk/cache memory stats for for the virtio balloon,
 as well as multiple fixes and cleanups.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull virtio/vhost updates from Michael Tsirkin:
 "virtio, vhost: fixes, cleanups, features

  This includes the disk/cache memory stats for for the virtio balloon,
  as well as multiple fixes and cleanups"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  vhost: don't hold onto file pointer for VHOST_SET_LOG_FD
  vhost: don't hold onto file pointer for VHOST_SET_VRING_ERR
  vhost: don't hold onto file pointer for VHOST_SET_VRING_CALL
  ringtest: ring.c malloc & memset to calloc
  virtio_vop: don't kfree device on register failure
  virtio_pci: don't kfree device on register failure
  virtio: split device_register into device_initialize and device_add
  vhost: remove unused lock check flag in vhost_dev_cleanup()
  vhost: Remove the unused variable.
  virtio_blk: print capacity at probe time
  virtio: make VIRTIO a menuconfig to ease disabling it all
  virtio/ringtest: virtio_ring: fix up need_event math
  virtio/ringtest: fix up need_event math
  virtio: virtio_mmio: make of_device_ids const.
  firmware: Use PTR_ERR_OR_ZERO()
  virtio-mmio: Use PTR_ERR_OR_ZERO()
  vhost/scsi: Improve a size determination in four functions
  virtio_balloon: include disk/file caches memory statistics
2018-02-08 10:41:00 -08:00
Chuck Lever 175e03101d svcrdma: Fix Read chunk round-up
A single NFSv4 WRITE compound can often have three operations:
PUTFH, WRITE, then GETATTR.

When the WRITE payload is sent in a Read chunk, the client places
the GETATTR in the inline part of the RPC/RDMA message, just after
the WRITE operation (sans payload). The position value in the Read
chunk enables the receiver to insert the Read chunk at the correct
place in the received XDR stream; that is between the WRITE and
GETATTR.

According to RFC 8166, an NFS/RDMA client does not have to add XDR
round-up to the Read chunk that carries the WRITE payload. The
receiver adds XDR round-up padding if it is absent and the
receiver's XDR decoder requires it to be present.

Commit 193bcb7b37 ("svcrdma: Populate tail iovec when receiving")
attempted to add support for receiving such a compound so that just
the WRITE payload appears in rq_arg's page list, and the trailing
GETATTR is placed in rq_arg's tail iovec. (TCP just strings the
whole compound into the head iovec and page list, without regard
to the alignment of the WRITE payload).

The server transport logic also had to accommodate the optional XDR
round-up of the Read chunk, which it did simply by lengthening the
tail iovec when round-up was needed. This approach is adequate for
the NFSv2 and NFSv3 WRITE decoders.

Unfortunately it is not sufficient for nfsd4_decode_write. When the
Read chunk length is a couple of bytes less than PAGE_SIZE, the
computation at the end of nfsd4_decode_write allows argp->pagelen to
go negative, which breaks the logic in read_buf that looks for the
tail iovec.

The result is that a WRITE operation whose payload length is just
less than a multiple of a page succeeds, but the subsequent GETATTR
in the same compound fails with NFS4ERR_OP_ILLEGAL because the XDR
decoder can't find it. Clients ignore the error, but they must
update their attribute cache via a separate round trip.

As nfsd4_decode_write appears to expect the payload itself to always
have appropriate XDR round-up, have svc_rdma_build_normal_read_chunk
add the Read chunk XDR round-up to the page_len rather than
lengthening the tail iovec.

Reported-by: Olga Kornievskaia <kolga@netapp.com>
Fixes: 193bcb7b37 ("svcrdma: Populate tail iovec when receiving")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Tested-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2018-02-08 13:40:17 -05:00
Arnd Bergmann 2285ae760d NFSD: hide unused svcxdr_dupstr()
There is now only one caller left for svcxdr_dupstr() and this is inside
of an #ifdef, so we can get a warning when the option is disabled:

fs/nfsd/nfs4xdr.c:241:1: error: 'svcxdr_dupstr' defined but not used [-Werror=unused-function]

This changes the remaining caller to use a nicer IS_ENABLED() check,
which lets the compiler drop the unused code silently.

Fixes: e40d99e6183e ("NFSD: Clean up symlink argument XDR decoders")
Suggested-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2018-02-08 13:40:17 -05:00
Amir Goldstein 39ca1bf624 nfsd: store stat times in fill_pre_wcc() instead of inode times
The time values in stat and inode may differ for overlayfs and stat time
values are the correct ones to use. This is also consistent with the fact
that fill_post_wcc() also stores stat time values.

This means introducing a stat call that could fail, where previously we
were just copying values out of the inode.  To be conservative about
changing behavior, we fall back to copying values out of the inode in
the error case.  It might be better just to clear fh_pre_saved (though
note the BUG_ON in set_change_info).

Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2018-02-08 13:40:17 -05:00
Amir Goldstein 76c479480b nfsd: encode stat->mtime for getattr instead of inode->i_mtime
The values of stat->mtime and inode->i_mtime may differ for overlayfs
and stat->mtime is the correct value to use when encoding getattr.
This is also consistent with the fact that other attr times are also
encoded from stat values.

Both callers of lease_get_mtime() already have the value of stat->mtime,
so the only needed change is that lease_get_mtime() will not overwrite
this value with inode->i_mtime in case the inode does not have an
exclusive lease.

Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2018-02-08 13:40:16 -05:00
J. Bruce Fields 0078117c6d nfsd: return RESOURCE not GARBAGE_ARGS on too many ops
A client that sends more than a hundred ops in a single compound
currently gets an rpc-level GARBAGE_ARGS error.

It would be more helpful to return NFS4ERR_RESOURCE, since that gives
the client a better idea how to recover (for example by splitting up the
compound into smaller compounds).

This is all a bit academic since we've never actually seen a reason for
clients to send such long compounds, but we may as well fix it.

While we're there, just use NFSD4_MAX_OPS_PER_COMPOUND == 16, the
constant we already use in the 4.1 case, instead of hard-coding 100.
Chances anyone actually uses even 16 ops per compound are small enough
that I think there's a neglible risk or any regression.

This fixes pynfs test COMP6.

Reported-by: "Lu, Xinyu" <luxy.fnst@cn.fujitsu.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2018-02-08 13:40:16 -05:00
Linus Torvalds 977e41524d CRIS port changes for 4.16
Includes only a small fix for some conflicting symbols, aligning CRIS
 with other platforms.
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mergetag object 6e0377212c
 type commit
 tag cris-for-4.16-urgent
 tagger Jesper Nilsson <jesper@jni.nu> 1518084841 +0100
 
 CRIS urgent breakage fix for 4.16
 
 The main Makefile for the CRIS port was
 overzealously scrubbed in 4.15-rc3,
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Merge tags 'cris-for-4.16' and 'cris-for-4.16-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/jesper/cris

Pull CRIS updates and fixes from Jesper Nilsson:

 - a small fix for some conflicting symbols, aligning CRIS with other
   platforms.

 - fix build breakage regression for all CRIS SoCs. The main Makefile
   for the CRIS port was overzealously scrubbed in 4.15-rc3.

* tag 'cris-for-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/jesper/cris:
  cris: Fix conflicting types for _etext, _edata, _end

* tag 'cris-for-4.16-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/jesper/cris:
  CRIS: Restore mistakenly cleared kernel Makefile
2018-02-08 10:36:05 -08:00
Jesper Nilsson 6e0377212c CRIS: Restore mistakenly cleared kernel Makefile
Commit 0fbc0b67a8 ("cris: remove arch specific early DT functions")
was a bit overzealous in removing the CRIS DT handling,
and the complete contents of the Makefile was erased
instead of just the line for the devicetree file.

This lead to a complete link failure for all SoCs in
the CRIS port due to missing symbols.

Restore the contents except the line for the devicetree file.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Fixes: 0fbc0b67a8
2018-02-08 11:12:10 +01:00
Linus Torvalds 581e400ff9 Modules updates for v4.16
Summary of modules changes for the 4.16 merge window:
 
 - Minor code cleanups and MAINTAINERS update
 
 Signed-off-by: Jessica Yu <jeyu@kernel.org>
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Merge tag 'modules-for-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux

Pull modules updates from Jessica Yu:
 "Minor code cleanups and MAINTAINERS update"

* tag 'modules-for-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux:
  modpost: Remove trailing semicolon
  ftrace/module: Move ftrace_release_mod() to ddebug_cleanup label
  MAINTAINERS: Remove from module & paravirt maintenance
2018-02-07 14:29:34 -08:00
Linus Torvalds 6fbac201f9 iversion.h related cleanup for v4.16
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Merge tag 'iversion-v4.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux

Pull inode->i_version cleanup from Jeff Layton:
 "Goffredo went ahead and sent a patch to rename this function, and
  reverse its sense, as we discussed last week.

  The patch is very straightforward and I figure it's probably best to
  go ahead and merge this to get the API as settled as possible"

* tag 'iversion-v4.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux:
  iversion: Rename make inode_cmp_iversion{+raw} to inode_eq_iversion{+raw}
2018-02-07 14:25:22 -08:00
Linus Torvalds fe803f8628 Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull UDF and ext2 fixlets from Jan Kara:
 "A UDF fix and an ext2 cleanup"

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  ext2: drop unneeded newline
  udf: Sanitize nanoseconds for time stamps
2018-02-07 14:23:06 -08:00
Dave Airlie 94fc27ac48 Fix for pcode timeouts on BXT and GLK, cmdparser fixes and fixes
for new vbt version on CFL and CNL.
 
 GVT contains vGPU reset enhancement, which refines vGPU reset flow
 and the support of virtual aperture read/write when x-no-mmap=on
 is set in KVM, which is required by a test case from Redhat and
 also another fix for virtual OpRegion.
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Merge tag 'drm-intel-next-fixes-2018-02-07' of git://anongit.freedesktop.org/drm/drm-intel into drm-next

Fix for pcode timeouts on BXT and GLK, cmdparser fixes and fixes
for new vbt version on CFL and CNL.

GVT contains vGPU reset enhancement, which refines vGPU reset flow
and the support of virtual aperture read/write when x-no-mmap=on
is set in KVM, which is required by a test case from Redhat and
also another fix for virtual OpRegion.

* tag 'drm-intel-next-fixes-2018-02-07' of git://anongit.freedesktop.org/drm/drm-intel:
  drm/i915/bios: add DP max link rate to VBT child device struct
  drm/i915/cnp: Properly handle VBT ddc pin out of bounds.
  drm/i915/cnp: Ignore VBT request for know invalid DDC pin.
  drm/i915/cmdparser: Do not check past the cmd length.
  drm/i915/cmdparser: Check reg_table_count before derefencing.
  drm/i915/bxt, glk: Increase PCODE timeouts during CDCLK freq changing
  drm/i915/gvt: Use KVM r/w to access guest opregion
  drm/i915/gvt: Fix aperture read/write emulation when enable x-no-mmap=on
  drm/i915/gvt: only reset execlist state of one engine during VM engine reset
  drm/i915/gvt: refine intel_vgpu_submission_ops as per engine ops
2018-02-08 08:21:37 +10:00
Linus Torvalds ffefb18172 regulator: Fix suspend to idle
Testing on mainline after the initial regulator pull request went in
 identified a regression for suspend to idle due to it calling the
 suspend operations with states that it wasn't realized could happen,
 this patch fixes the problem.
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Merge tag 'regulator-fix-v4.16-suspend' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator fix from Mark Brown:
 "Fix suspend to idle.

  Testing on mainline after the initial regulator pull request went in
  identified a regression for suspend to idle due to it calling the
  suspend operations with states that it wasn't realized could happen,
  this patch fixes the problem"

* tag 'regulator-fix-v4.16-suspend' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: Fix suspend to idle
2018-02-07 13:17:07 -08:00
Linus Torvalds c3611b6d7f fbdev changes for v4.16:
- fix display-timings lookup in the Device Tree in atmel_lcdfb
   driver (Johan Hovold)
 
 - fix video mode and line_length to be set correctly in vfb driver
   (Pieter "PoroCYon" Sluys)
 
 - fix returning nonsensical values to the user-space on GIO_FONTX
   ioctl when using dummy console (Nicolas Pitre)
 
 - add missing license tag to mmpfb driver (Arnd Bergmann)
 
 - convert radeonfb and pxa3xx_gcu drivers to use ktime_get[_ts64]()
   instead of the deprecated do_gettimeofday() (Arnd Bergmann)
 
 - switch udlfb driver from using the pr_*() logging functions to
   the dev_*() ones + related cleanups (Ladislav Michl)
 
 - use __raw I/O accessors also on arm64 (Ji Zhang)
 
 - fix Kconfig help text for intelfb driver (Randy Dunlap)
 
 - do not duplicate features data in omapfb driver (Ladislav Michl)
 
 - misc cleanups (Colin Ian King, Markus Elfring, Rasmus Villemoes,
   Vasyl Gomonovych, Himanshu Jha, Michael Trimarchi)
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Merge tag 'fbdev-v4.16' of git://github.com/bzolnier/linux

Pull fbdev updates from Bartlomiej Zolnierkiewicz:
 "There is nothing really major here:

   - fix display-timings lookup in the Device Tree in atmel_lcdfb driver
     (Johan Hovold)

   - fix video mode and line_length to be set correctly in vfb driver
     (Pieter "PoroCYon" Sluys)

   - fix returning nonsensical values to the user-space on GIO_FONTX
     ioctl when using dummy console (Nicolas Pitre)

   - add missing license tag to mmpfb driver (Arnd Bergmann)

   - convert radeonfb and pxa3xx_gcu drivers to use ktime_get[_ts64]()
     instead of the deprecated do_gettimeofday() (Arnd Bergmann)

   - switch udlfb driver from using the pr_*() logging functions to the
     dev_*() ones + related cleanups (Ladislav Michl)

   - use __raw I/O accessors also on arm64 (Ji Zhang)

   - fix Kconfig help text for intelfb driver (Randy Dunlap)

   - do not duplicate features data in omapfb driver (Ladislav Michl)

   - misc cleanups (Colin Ian King, Markus Elfring, Rasmus Villemoes,
     Vasyl Gomonovych, Himanshu Jha, Michael Trimarchi)"

* tag 'fbdev-v4.16' of git://github.com/bzolnier/linux: (25 commits)
  video: udlfb: Switch from the pr_*() to the dev_*() logging functions
  video: udlfb: Constify read only data
  video: fbdev/mmp: add MODULE_LICENSE
  console/dummy: leave .con_font_get set to NULL
  fbdev: mxsfb: use framebuffer_alloc in the correct way
  video: udlfb: Do not name private data 'dev'
  video: udlfb: Remove noisy warnings
  video: udlfb: Remove redundant gdev variable
  video: udlfb: Remove unnecessary local variable
  fbdev: auo_k190x: Use zeroing memory allocator instead of allocator/memset
  vfb: fix video mode and line_length being set when loaded
  fbdev: arm64 use __raw I/O memory api
  omapfb: dss: Do not duplicate features data
  video: fbdev: omap2: Use PTR_ERR_OR_ZERO()
  fbdev: au1200fb: delete duplicate header contents
  fbdev: pxa3xx: use ktime_get_ts64 for time stamps
  fbdev: radeon: use ktime_get() for HZ calibration
  video: smscufx: Improve a size determination in two functions
  video: udlfb: Delete an unnecessary return statement in two functions
  video: udlfb: Improve a size determination in dlfb_alloc_urb_list()
  ...
2018-02-07 13:10:43 -08:00
Linus Torvalds cc006a2241 platform-drivers-x86 for v4.16-2
DEFINE_SHOW_ATTRIBUTE() macro defined privately in 3 locations is
 useful for new and old users to avoid a lot of code duplication.
 
 Move the macro to seq_file.h.
 
 Along with above, clean up 3 drivers to use that macro.
 
 The following is an automated git shortlog grouped by driver:
 
 dell-laptop:
  -  Re-use DEFINE_SHOW_ATTRIBUTE() macro
 
 ideapad-laptop:
  -  Re-use DEFINE_SHOW_ATTRIBUTE() macro
 
 samsung-laptop:
  -  Re-use DEFINE_SHOW_ATTRIBUTE() macro
 
 seq_file:
  -  Introduce DEFINE_SHOW_ATTRIBUTE() helper macro
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Merge tag 'platform-drivers-x86-v4.16-2' of git://git.infradead.org/linux-platform-drivers-x86

Pull more x86 platform-drivers updates from Andy Shevchenko:
 "The DEFINE_SHOW_ATTRIBUTE() macro was defined privately in three
  locations and is useful for new and old users to avoid a lot of code
  duplication.

  Move the macro to seq_file.h.

  Along with above, clean up three drivers to use that macro.

  This, due to dependencies, was sent separately since affected changes
  weren't upstream originally yet. The rationale of doing this now is to
  allow use of new macro in v4.17 cycle in a conflictless manner"

* tag 'platform-drivers-x86-v4.16-2' of git://git.infradead.org/linux-platform-drivers-x86:
  platform/x86: samsung-laptop: Re-use DEFINE_SHOW_ATTRIBUTE() macro
  platform/x86: ideapad-laptop: Re-use DEFINE_SHOW_ATTRIBUTE() macro
  platform/x86: dell-laptop: Re-use DEFINE_SHOW_ATTRIBUTE() macro
  seq_file: Introduce DEFINE_SHOW_ATTRIBUTE() helper macro
2018-02-07 12:47:23 -08:00
Jani Nikula 6dd3104e78 drm/i915/bios: add DP max link rate to VBT child device struct
Update VBT defs to reflect revision 216. While at it, default the
expected child device struct size to sizeof the size rather than a
hardcoded value.

v2: Fix bit order (David)

Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180118153310.32437-1-jani.nikula@intel.com
(cherry picked from commit c4fb60b9ab)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-02-07 12:32:14 -08:00
Linus Torvalds 7590e37bda ASoC: Updates for v4.16
With the merge window having been delayed for another week here's
 another batch of updates that came in during that week.  There's a few
 important fixes in here, mainly a fix for I/O on a number of devices
 caused by some of the component rework and a fix for a potential issue
 if more than one component in a link provides compressed operations.
 The I/O fixes are particularly important as the problem causes a power
 regression on a number of OMAP platforms.
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Merge tag 'asoc-v4.16-5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound

Pull more ASoC updates from Mark Brown:
 "With the merge window having been delayed for another week here's
  another batch of updates that came in during that week.

  There's a few important fixes in here, mainly a fix for I/O on a
  number of devices caused by some of the component rework and a fix for
  a potential issue if more than one component in a link provides
  compressed operations. The I/O fixes are particularly important as the
  problem causes a power regression on a number of OMAP platforms"

* tag 'asoc-v4.16-5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound: (22 commits)
  ASoC: stm32: add of dependency for stm32 drivers
  ASoC: mt8173-rt5650: fix child-node lookup
  ASoC: dapm: fix debugfs read using path->connected
  ASoC: compress: Fixup error messages
  ASoC: compress: Remove some extraneous blank lines
  ASoC: compress: Correct handling of copy callback
  ASoC: Intel: kbl: Enable mclk and ssp sclk early
  ASoC: Intel: Skylake: Add extended I2S config blob support in Clock driver
  ASoC: Intel: Skylake: Add ssp clock driver
  ASoC: Fix twl4030 and 6040 regression by adding back read and write
  ASoC: sun8i-codec: Add ADC support for a33
  ASoC: rockchip: Use dummy_dai for rt5514 dsp dailink
  ASoC: soc-pcm: rename .pmdown_time to .use_pmdown_time for Component
  ASoC: ak4613: call dummy write for PW_MGMT1/3 when Playback
  ASoC: soc-pcm: don't call flush_delayed_work() many times in soc_pcm_private_free()
  ASoC: soc-core: snd_soc_rtdcom_lookup() cares component driver name
  ASoC: sam9x5_wm8731: Drop 'ASoC' prefix from error messages
  ASoC: sam9g20_wm8731: use dev_*() logging functions
  ASoC: max98373 Changed SPDX header in C++ comments style
  ASoC: dmic: Fix check of return value from read of 'num-channels'
  ...
2018-02-07 12:11:09 -08:00
Dave Airlie 2dd27794b9 Merge branch 'drm-next-4.16' of git://people.freedesktop.org/~agd5f/linux into drm-next
A few more misc fixes for 4.16.

* 'drm-next-4.16' of git://people.freedesktop.org/~agd5f/linux:
  drm/amdgpu: re-enable CGCG on CZ and disable on ST
  drm/amdgpu: disable coarse grain clockgating for ST
  drm/radeon: adjust tested variable
  drm/amdgpu: remove WARN_ON when VM isn't found v2
  drm/amdgpu: fix locking in vega10_ih_prescreen_iv
  drm/amdgpu: fix another potential cause of VM faults
  drm/amdgpu: use queue 0 for kiq ring
  drm/ttm: Fix 'buf' pointer update in ttm_bo_vm_access_kmap() (v2)
  drm/ttm: fix missing parameter change for ttm_bo_cleanup_refs
2018-02-08 06:05:52 +10:00
Linus Torvalds 7e6127c124 linux-watchdog 4.16-rc1 merge window tag
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Merge tag 'linux-watchdog-4.16-rc1' of git://www.linux-watchdog.org/linux-watchdog

Pull watchdog updates from Wim Van Sebroeck:

 - new watchdog device drivers for Realtek RTD1295 and Spreadtrum SC9860
   platform

 - add support for the following devices: jz4780 SoC, AST25xx series SoC
   and r8a77970 SoC

 - convert to watchdog framework: i6300esb_wdt, xen_wdt and sp5100_tco

 - several fixes for watchdog core

 - remove at32ap700x and obsolete documentation

 - gpio: Convert to use GPIO descriptors

 - rename gemini into FTWDT010 as this IP block is generc from Faraday
   Technology

 - various clean-ups and small bugfixes

 - add Guenter Roeck as co-maintainer

 - change maintainers e-mail address

* tag 'linux-watchdog-4.16-rc1' of git://www.linux-watchdog.org/linux-watchdog: (74 commits)
  documentation: watchdog: remove documentation of w83697hf_wdt/w83697ug_wdt
  documentation: watchdog: remove documentation for ixp2000
  documentation: watchdog: remove documentation of at32ap700x_wdt
  watchdog: remove at32ap700x_wdt
  watchdog: sp5100_tco: Add support for recent FCH versions
  watchdog: sp5100-tco: Abort if watchdog is disabled by hardware
  watchdog: sp5100_tco: Use bit operations
  watchdog: sp5100_tco: Convert to use watchdog subsystem
  watchdog: sp5100_tco: Clean up function and variable names
  watchdog: sp5100_tco: Use dev_ print functions where possible
  watchdog: sp5100_tco: Match PCI device early
  watchdog: sp5100_tco: Clean up sp5100_tco_setupdevice
  watchdog: sp5100_tco: Use standard error codes
  watchdog: sp5100_tco: Use request_muxed_region where possible
  watchdog: sp5100_tco: Fix watchdog disable bit
  watchdog: sp5100_tco: Always use SP5100_IO_PM_{INDEX_REG,DATA_REG}
  watchdog: core: make sure the watchdog_worker is not deferred
  watchdog: mt7621: switch to using managed devm_watchdog_register_device()
  watchdog: mt7621: set WDOG_HW_RUNNING bit when appropriate
  watchdog: imx2_wdt: restore previous timeout after suspend+resume
  ...
2018-02-07 11:54:34 -08:00
Linus Torvalds 413879a10b RISC-V changes for 4.16
This tag contains the fixes we'd like to target for the 4.16 merge
 window.  It's not as much as I was originally hoping to do but between
 glibc, the chip, and FOSDEM there just wasn't enough time to get
 everything put together.  As such, this merge window is essentially just
 going to be small changes.  This includes mostly cleanups:
 
 * A build fix failure to the audit test cases.  RISC-V doesn't have
   renameat because the generic syscall ABI moved to renameat2 by the
   time of our port.  The syscall audit test cases don't understand this,
   so I added a trivial fix.  This went through mailing list review
   during the 4.15 merge window, but nobody has picked it up so I think
   it's best to just do this here.
 * The removal of our command-line argument processing code.  The
   "mem_end" stuff was broken and the rest duplicated generic device tree
   code.  The generic code was already being called.
 * Some unused/redundant code has been removed, including
   __ARCH_HAVE_MMU, current_pgdir, and the initialization of init_mm.pgd.
 * SUM is disabled upon taking a trap, which means that user memory is
   protected during traps taking inside copy_{to,from}_user().
 * The sptbr CSR has been renamed to satp in C code.  We haven't changed
   the assembly code in order to maintain compatibility with binutils
   2.29, which doesn't understand the new name.
 
 Additionally, we're adding some new features:
 
 * Basic ftrace support, thanks to Alan Kao!
 * Support for ZONE_DMA32.  This is necessary for all the normal reasons,
   but also to deal with a deficiency in the Xilinx PCIe controller we're
   using on our FPGA-based systems.  While the ZONE_DMA32 addition should
   be sufficient for most uses, it doesn't complete the fix for the
   Xilinx controller.
 * TLB shootdowns now only target the harts where they're necessary,
   instead of applying to all harts in the system.
 
 These patches have all been sitting on our linux-next branch for a while
 now.  Due to time constraints this is all I feel comfortable submitting
 during the 4.16 merge window, hopefully we'll do better next time!
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Merge tag 'riscv-for-linus-4.16-merge_window' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux

Pull RISC-V updates from Palmer Dabbelt:
 "This contains the fixes we'd like to target for the 4.16 merge window.
  It's not as much as I was originally hoping to do but between glibc,
  the chip, and FOSDEM there just wasn't enough time to get everything
  put together. As such, this merge window is essentially just going to
  be small changes. This includes mostly cleanups:

   - A build fix failure to the audit test cases.

     RISC-V doesn't have renameat because the generic syscall ABI moved
     to renameat2 by the time of our port. The syscall audit test cases
     don't understand this, so I added a trivial fix. This went through
     mailing list review during the 4.15 merge window, but nobody has
     picked it up so I think it's best to just do this here.

   - The removal of our command-line argument processing code. The
     "mem_end" stuff was broken and the rest duplicated generic device
     tree code. The generic code was already being called.

   - Some unused/redundant code has been removed, including
     __ARCH_HAVE_MMU, current_pgdir, and the initialization of
     init_mm.pgd.

   - SUM is disabled upon taking a trap, which means that user memory is
     protected during traps taking inside copy_{to,from}_user().

   - The sptbr CSR has been renamed to satp in C code. We haven't
     changed the assembly code in order to maintain compatibility with
     binutils 2.29, which doesn't understand the new name.

  Additionally, we're adding some new features:

   - Basic ftrace support, thanks to Alan Kao!

   - Support for ZONE_DMA32.

     This is necessary for all the normal reasons, but also to deal with
     a deficiency in the Xilinx PCIe controller we're using on our
     FPGA-based systems. While the ZONE_DMA32 addition should be
     sufficient for most uses, it doesn't complete the fix for the
     Xilinx controller.

   - TLB shootdowns now only target the harts where they're necessary,
     instead of applying to all harts in the system.

  These patches have all been sitting on our linux-next branch for a
  while now. Due to time constraints this is all I feel comfortable
  submitting during the 4.16 merge window, hopefully we'll do better
  next time!"

[ Note to self: "harts" is RISC-V speak for "hardware threads".  I had
  to look that up.    - Linus ]

* tag 'riscv-for-linus-4.16-merge_window' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux:
  riscv: inline set_pgdir into its only caller
  riscv: rename sptbr to satp
  riscv: don't read back satp in paging_init
  riscv: remove the unused current_pgdir function
  riscv: add ZONE_DMA32
  RISC-V: Limit the scope of TLB shootdowns
  riscv: disable SUM in the exception handler
  riscv: remove redundant unlikely()
  riscv: remove unused __ARCH_HAVE_MMU define
  riscv/ftrace: Add basic support
  RISC-V: Remove mem_end command line processing
  RISC-V: Remove duplicate command-line parsing logic
  audit: Avoid build failures on systems without renameat
2018-02-07 11:33:08 -08:00
Linus Torvalds 0bd2afc748 MIPS fixes for 4.16-rc1
A couple of MIPS fixes for 4.16-rc1, including an important regression
 in 4.15 and a rather more longstanding corner case build fix.
 
 - Fix CPS regression on older binutils due to MIPS_ISA_LEVEL_RAW fix
   (4.15)
 - Fix allmodconfig + CONFIG_MACH_TX49XX=y builds due to incorrect use of
   IS_ENABLED() (2.6.28)
 -----BEGIN PGP SIGNATURE-----
 
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 =jeJr
 -----END PGP SIGNATURE-----

Merge tag 'mips_fixes_4.16_1' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips

Pull MIPS fixes from James Hogan:
 "A couple of MIPS fixes for 4.16-rc1, including an important regression
  in 4.15 and a rather more longstanding corner case build fix.

  These are separate from the main pull request as one of the bugs fixed
  was only recently introduced in v4.15-rc8.

   - Fix CPS regression on older binutils due to MIPS_ISA_LEVEL_RAW fix
     (4.15)

   - Fix allmodconfig + CONFIG_MACH_TX49XX=y builds due to incorrect use
     of IS_ENABLED() (2.6.28)"

* tag 'mips_fixes_4.16_1' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips:
  MIPS: TXx9: use IS_BUILTIN() for CONFIG_LEDS_CLASS
  MIPS: CPS: Fix MIPS_ISA_LEVEL_RAW fallout
2018-02-07 11:31:05 -08:00
Linus Torvalds 8578953687 MIPS changes for 4.16
These are the main MIPS changes for 4.16. Rough overview:
  - Basic support for the Ingenic JZ4770 based GCW Zero open-source
    handheld video game console
  - Support for the Ranchu board (used by Android emulator)
  - Various cleanups and misc improvements
 
 Fixes:
  - Fix generic platform's USB_*HCI_BIG_ENDIAN selects (4.9)
  - Fix vmlinuz default build when ZBOOT selected
  - Fix clean up of vmlinuz targets
  - Fix command line duplication (in preparation for Ingenic JZ4770)
 
 Miscellaneous:
  - Allow Processor ID reads to be to be optimised away by the compiler
    (improves performance when running in guest)
  - Push ARCH_MIGHT_HAVE_PC_SERIO/PARPORT down to platform level to
    disable on generic platform with Ranchu board support
  - Add helpers for assembler macro instructions for older assemblers
  - Use assembler macro instructions to support VZ, XPA & MSA operations
    on older assemblers, removing C wrapper duplication
  - Various improvements to VZ & XPA assembly wrappers
  - Add drivers/platform/mips/ to MIPS MAINTAINERS entry
 
 Minor cleanups:
  - Misc FPU emulation cleanups (removal of unnecessary include, moving
    macros to common header, checkpatch and sparse fixes)
  - Remove duplicate assignment of core in play_dead()
  - Remove duplication in watchpoint handling
  - Remove mips_dma_mapping_error() stub
  - Use NULL instead of 0 in prepare_ftrace_return()
  - Use proper kernel-doc Return keyword for
    __compute_return_epc_for_insn()
  - Remove duplicate semicolon in csum_fold()
 
 Platform support:
 
 Broadcom:
  - Enable ZBOOT on BCM47xx
 
 Generic platform:
  - Add Ranchu board support, used by Android emulator
  - Fix machine compatible string matching for Ranchu
  - Support GIC in EIC mode
 
 Ingenic platforms:
  - Add DT, defconfig and other support for JZ4770 SoC and GCW Zero
  - Support dynamnic machine types (i.e. JZ4740 / JZ4770 / JZ4780)
  - Add Ingenic JZ4770 CGU clocks
  - General Ingenic clk changes to prepare for JZ4770 SoC support
  - Use common command line handling code
  - Add DT vendor prefix to GCW (Game Consoles Worldwide)
 
 Loongson:
  - Add MAINTAINERS entry for Loongson2 and Loongson3 platforms
  - Drop 32-bit support for Loongson 2E/2F devices
  - Fix build failures due to multiple use of "MEM_RESERVED"
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Merge tag 'mips_4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips

Pull MIPS updates from James Hogan:
 "These are the main MIPS changes for 4.16.

  Rough overview:

   (1) Basic support for the Ingenic JZ4770 based GCW Zero open-source
       handheld video game console

   (2) Support for the Ranchu board (used by Android emulator)

   (3) Various cleanups and misc improvements

  More detailed summary:

  Fixes:
   - Fix generic platform's USB_*HCI_BIG_ENDIAN selects (4.9)
   - Fix vmlinuz default build when ZBOOT selected
   - Fix clean up of vmlinuz targets
   - Fix command line duplication (in preparation for Ingenic JZ4770)

  Miscellaneous:
   - Allow Processor ID reads to be to be optimised away by the compiler
     (improves performance when running in guest)
   - Push ARCH_MIGHT_HAVE_PC_SERIO/PARPORT down to platform level to
     disable on generic platform with Ranchu board support
   - Add helpers for assembler macro instructions for older assemblers
   - Use assembler macro instructions to support VZ, XPA & MSA
     operations on older assemblers, removing C wrapper duplication
   - Various improvements to VZ & XPA assembly wrappers
   - Add drivers/platform/mips/ to MIPS MAINTAINERS entry

  Minor cleanups:
   - Misc FPU emulation cleanups (removal of unnecessary include, moving
     macros to common header, checkpatch and sparse fixes)
   - Remove duplicate assignment of core in play_dead()
   - Remove duplication in watchpoint handling
   - Remove mips_dma_mapping_error() stub
   - Use NULL instead of 0 in prepare_ftrace_return()
   - Use proper kernel-doc Return keyword for
     __compute_return_epc_for_insn()
   - Remove duplicate semicolon in csum_fold()

  Platform support:

  Broadcom:
   - Enable ZBOOT on BCM47xx

  Generic platform:
   - Add Ranchu board support, used by Android emulator
   - Fix machine compatible string matching for Ranchu
   - Support GIC in EIC mode

  Ingenic platforms:
   - Add DT, defconfig and other support for JZ4770 SoC and GCW Zero
   - Support dynamnic machine types (i.e. JZ4740 / JZ4770 / JZ4780)
   - Add Ingenic JZ4770 CGU clocks
   - General Ingenic clk changes to prepare for JZ4770 SoC support
   - Use common command line handling code
   - Add DT vendor prefix to GCW (Game Consoles Worldwide)

  Loongson:
   - Add MAINTAINERS entry for Loongson2 and Loongson3 platforms
   - Drop 32-bit support for Loongson 2E/2F devices
   - Fix build failures due to multiple use of 'MEM_RESERVED'"

* tag 'mips_4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips: (53 commits)
  MIPS: Malta: Sanitize mouse and keyboard configuration.
  MIPS: Update defconfigs after previous patch.
  MIPS: Push ARCH_MIGHT_HAVE_PC_SERIO down to platform level
  MIPS: Push ARCH_MIGHT_HAVE_PC_PARPORT down to platform level
  MIPS: SMP-CPS: Remove duplicate assignment of core in play_dead
  MIPS: Generic: Support GIC in EIC mode
  MIPS: generic: Fix Makefile alignment
  MIPS: generic: Fix ranchu_of_match[] termination
  MIPS: generic: Fix machine compatible matching
  MIPS: Loongson fix name confict - MEM_RESERVED
  MIPS: bcm47xx: enable ZBOOT support
  MIPS: Fix trailing semicolon
  MIPS: Watch: Avoid duplication of bits in mips_read_watch_registers
  MIPS: Watch: Avoid duplication of bits in mips_install_watch_registers.
  MIPS: MSA: Update helpers to use new asm macros
  MIPS: XPA: Standardise readx/writex accessors
  MIPS: XPA: Allow use of $0 (zero) to MTHC0
  MIPS: XPA: Use XPA instructions in assembly
  MIPS: VZ: Pass GC0 register names in $n format
  MIPS: VZ: Update helpers to use new asm macros
  ...
2018-02-07 11:22:44 -08:00
Linus Torvalds e03ab6c4ad A few late-arriving fixes, along with Konstantin's PGP document that had
no reason to wait another cycle.
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Merge tag 'docs-4.16-2' of git://git.lwn.net/linux

Pull more documentation updates from Jonathan Corbet:
 "A few late-arriving fixes, along with Konstantin's PGP document that
  had no reason to wait another cycle"

* tag 'docs-4.16-2' of git://git.lwn.net/linux:
  Documentation/process: tweak pgp maintainer guide
  Documentation/admin-guide: fixes for thunderbolt.rst
  Documentation: mips: Update AU1xxx_IDE Kconfig dependencies
  Fix broken link in Documentation/process/kernel-docs.rst
  Documentation/process: kernel maintainer PGP guide
2018-02-07 09:42:59 -08:00
Mark Brown 3d0a352a55
Merge remote-tracking branches 'asoc/topic/sam9x5_wm8731', 'asoc/topic/sgtl5000' and 'asoc/topic/sun8i-codec' into asoc-next 2018-02-07 11:25:47 +00:00
Mark Brown 171248777a
Merge remote-tracking branches 'asoc/topic/max98373', 'asoc/topic/mtk', 'asoc/topic/pcm', 'asoc/topic/rockchip' and 'asoc/topic/sam9g20_wm8731' into asoc-next 2018-02-07 11:25:44 +00:00
Mark Brown 535b218a7f
Merge remote-tracking branches 'asoc/topic/ak4613', 'asoc/topic/core', 'asoc/topic/dmic' and 'asoc/topic/intel' into asoc-next 2018-02-07 11:25:41 +00:00
Mark Brown 008a03c0cf
Merge remote-tracking branch 'asoc/topic/compress' into asoc-next 2018-02-07 11:24:21 +00:00
Mark Brown aa72645481
Merge remote-tracking branch 'asoc/fix/twl-breakage' into asoc-next 2018-02-07 11:23:48 +00:00
Mark Brown ce8ee02d51
Merge remote-tracking branches 'asoc/fix/compress', 'asoc/fix/core', 'asoc/fix/dapm', 'asoc/fix/mtk' and 'asoc/fix/stm' into asoc-next 2018-02-07 11:21:02 +00:00
Olivier Moysan 276d70f758
ASoC: stm32: add of dependency for stm32 drivers
Add of dependency for STM32 ASoC drivers.
DFSDM of dependency is already inherited
from STM32_DFSDM_ADC dependency.

Signed-off-by: olivier moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-02-07 11:19:53 +00:00
Johan Hovold 3a0a7b2610
ASoC: mt8173-rt5650: fix child-node lookup
This driver used the wrong OF-helper when looking up the optional
capture-codec child node during probe. Instead of searching just
children of the sound node, a tree-wide depth-first search starting at
the unrelated platform node was done. Not only could this end up
matching an unrelated node or no node at all; the platform node could
also be prematurely freed since of_find_node_by_name() drops a reference
to its first argument. This particular pattern has been observed leading
to crashes after probe deferrals in other drivers.

Fix this by dropping the broken call to of_find_node_by_name() and
keeping only the second, correct lookup using of_get_child_by_name()
while taking care not to bail out if the optional node is missing.

Note that this also addresses two capture-codec node-reference leaks
(one for each of the original helper calls).

Compile tested only.

Fixes: d349caeb05 ("ASoC: mediatek: Add second I2S on mt8173-rt5650 machine driver")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-02-07 11:16:39 +00:00
KaiChieh Chuang 28735af3f5
ASoC: dapm: fix debugfs read using path->connected
This fix a bug in dapm_widget_power_read_file(),
where it may sent opposite order of source/sink widget
into the p->connected().

for example,
static int connected_check(source, sink);
{"w_sink", NULL, "w_source", connected_check}

the dapm_widget_power_read_file() will query p->connected()
in following case
	p->conneted("w_source", "w_sink")
	p->conneted("w_sink", "w_source")
we should avoid the last case, since it's the wrong order (source/sink)
as declared in snd_soc_dapm_route.

Signed-off-by: KaiChieh Chuang <kaichieh.chuang@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-02-07 11:15:26 +00:00
Andy Shevchenko 9a7c551ba7 platform/x86: samsung-laptop: Re-use DEFINE_SHOW_ATTRIBUTE() macro
...instead of open coding file operations followed by custom ->open()
callbacks per each attribute.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2018-02-07 12:50:23 +02:00
Andy Shevchenko 334c4efd29 platform/x86: ideapad-laptop: Re-use DEFINE_SHOW_ATTRIBUTE() macro
...instead of open coding file operations followed by custom ->open()
callbacks per each attribute.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2018-02-07 12:50:22 +02:00
Andy Shevchenko b04eb8aaab platform/x86: dell-laptop: Re-use DEFINE_SHOW_ATTRIBUTE() macro
...instead of open coding file operations followed by custom ->open()
callbacks per each attribute.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2018-02-07 12:50:22 +02:00
Andy Shevchenko a08f06bb7a seq_file: Introduce DEFINE_SHOW_ATTRIBUTE() helper macro
The DEFINE_SHOW_ATTRIBUTE() helper macro would be useful for current
users, which are many of them, and for new comers to decrease code
duplication.

Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Darren Hart (VMware) <dvhart@infradead.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2018-02-07 12:50:21 +02:00
Linus Torvalds a2e5790d84 Merge branch 'akpm' (patches from Andrew)
Merge misc updates from Andrew Morton:

 - kasan updates

 - procfs

 - lib/bitmap updates

 - other lib/ updates

 - checkpatch tweaks

 - rapidio

 - ubsan

 - pipe fixes and cleanups

 - lots of other misc bits

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (114 commits)
  Documentation/sysctl/user.txt: fix typo
  MAINTAINERS: update ARM/QUALCOMM SUPPORT patterns
  MAINTAINERS: update various PALM patterns
  MAINTAINERS: update "ARM/OXNAS platform support" patterns
  MAINTAINERS: update Cortina/Gemini patterns
  MAINTAINERS: remove ARM/CLKDEV SUPPORT file pattern
  MAINTAINERS: remove ANDROID ION pattern
  mm: docs: add blank lines to silence sphinx "Unexpected indentation" errors
  mm: docs: fix parameter names mismatch
  mm: docs: fixup punctuation
  pipe: read buffer limits atomically
  pipe: simplify round_pipe_size()
  pipe: reject F_SETPIPE_SZ with size over UINT_MAX
  pipe: fix off-by-one error when checking buffer limits
  pipe: actually allow root to exceed the pipe buffer limits
  pipe, sysctl: remove pipe_proc_fn()
  pipe, sysctl: drop 'min' parameter from pipe-max-size converter
  kasan: rework Kconfig settings
  crash_dump: is_kdump_kernel can be boolean
  kernel/mutex: mutex_is_locked can be boolean
  ...
2018-02-06 22:15:42 -08:00