1. 12 Apr, 2018 3 commits
  2. 11 Apr, 2018 2 commits
    • Jens Axboe's avatar
      sr: get/drop reference to device in revalidate and check_events · 2d097c50
      Jens Axboe authored
      We can't just use scsi_cd() to get the scsi_cd structure, we have
      to grab a live reference to the device. For both callbacks, we're
      not inside an open where we already hold a reference to the device.
      
      This fixes device removal/addition under concurrent device access,
      which otherwise could result in the below oops.
      
      NULL pointer dereference at 0000000000000010
      PGD 0 P4D 0
      Oops: 0000 [#1] PREEMPT SMP
      Modules linked in:
      sr 12:0:0:0: [sr2] scsi-1 drive
       scsi_debug crc_t10dif crct10dif_generic crct10dif_common nvme nvme_core sb_edac xl
      sr 12:0:0:0: Attached scsi CD-ROM sr2
       sr_mod cdrom btrfs xor zstd_decompress zstd_compress xxhash lzo_compress zlib_defc
      sr 12:0:0:0: Attached scsi generic sg7 type 5
       igb ahci libahci i2c_algo_bit libata dca [last unloaded: crc_t10dif]
      CPU: 43 PID: 4629 Comm: systemd-udevd Not tainted 4.16.0+ #650
      Hardware name: Dell Inc. PowerEdge T630/0NT78X, BIOS 2.3.4 11/09/2016
      RIP: 0010:sr_block_revalidate_disk+0x23/0x190 [sr_mod]
      RSP: 0018:ffff883ff357bb58 EFLAGS: 00010292
      RAX: ffffffffa00b07d0 RBX: ffff883ff3058000 RCX: ffff883ff357bb66
      RDX: 0000000000000003 RSI: 0000000000007530 RDI: ffff881fea631000
      RBP: 0000000000000000 R08: ffff881fe4d38400 R09: 0000000000000000
      R10: 0000000000000000 R11: 00000000000001b6 R12: 000000000800005d
      R13: 000000000800005d R14: ffff883ffd9b3790 R15: 0000000000000000
      FS:  00007f7dc8e6d8c0(0000) GS:ffff883fff340000(0000) knlGS:0000000000000000
      CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
      CR2: 0000000000000010 CR3: 0000003ffda98005 CR4: 00000000003606e0
      DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
      DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
      Call Trace:
       ? __invalidate_device+0x48/0x60
       check_disk_change+0x4c/0x60
       sr_block_open+0x16/0xd0 [sr_mod]
       __blkdev_get+0xb9/0x450
       ? iget5_locked+0x1c0/0x1e0
       blkdev_get+0x11e/0x320
       ? bdget+0x11d/0x150
       ? _raw_spin_unlock+0xa/0x20
       ? bd_acquire+0xc0/0xc0
       do_dentry_open+0x1b0/0x320
       ? inode_permission+0x24/0xc0
       path_openat+0x4e6/0x1420
       ? cpumask_any_but+0x1f/0x40
       ? flush_tlb_mm_range+0xa0/0x120
       do_filp_open+0x8c/0xf0
       ? __seccomp_filter+0x28/0x230
       ? _raw_spin_unlock+0xa/0x20
       ? __handle_mm_fault+0x7d6/0x9b0
       ? list_lru_add+0xa8/0xc0
       ? _raw_spin_unlock+0xa/0x20
       ? __alloc_fd+0xaf/0x160
       ? do_sys_open+0x1a6/0x230
       do_sys_open+0x1a6/0x230
       do_syscall_64+0x5a/0x100
       entry_SYSCALL_64_after_hwframe+0x3d/0xa2
      Reviewed-by: default avatarLee Duncan <lduncan@suse.com>
      Reviewed-by: default avatarJan Kara <jack@suse.cz>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      2d097c50
    • Ming Lei's avatar
      blk-mq: Revert "blk-mq: reimplement blk_mq_hw_queue_mapped" · 2434af79
      Ming Lei authored
      This reverts commit 127276c6.
      
      When all CPUs of one hw queue become offline, there still may have IOs
      not completed from this hctx. But blk_mq_hw_queue_mapped() is called in
      blk_mq_queue_tag_busy_iter(), which is used for iterating request in timeout
      handler, timeout event will be missed on the inactive hctx, then request may
      never be completed.
      
      Also the replementation of blk_mq_hw_queue_mapped() doesn't match the helper's
      name any more, and it should have been named as blk_mq_hw_queue_active().
      
      Even other callers need further verification about this reimplemenation.
      
      So revert this patch now, and we can improve hw queue activate/inactivate event
      after adequent researching and test.
      
      Cc: Stefan Haberland <sth@linux.vnet.ibm.com>
      Cc: Christian Borntraeger <borntraeger@de.ibm.com>
      Cc: Christoph Hellwig <hch@lst.de>
      Reported-by: default avatarJens Axboe <axboe@kernel.dk>
      Fixes: 	127276c6 ("blk-mq: reimplement blk_mq_hw_queue_mapped")
      Reviewed-by: default avatarSagi Grimberg <sagi@grimberg.me>
      Signed-off-by: default avatarMing Lei <ming.lei@redhat.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      2434af79
  3. 10 Apr, 2018 13 commits
    • Bart Van Assche's avatar
      blk-mq: Avoid that submitting a bio concurrently with device removal triggers a crash · 37f9579f
      Bart Van Assche authored
      Because blkcg_exit_queue() is now called from inside blk_cleanup_queue()
      it is no longer safe to access cgroup information during or after the
      blk_cleanup_queue() call. Hence protect the generic_make_request_checks()
      call with blk_queue_enter() / blk_queue_exit().
      Reported-by: default avatarMing Lei <ming.lei@redhat.com>
      Fixes: a063057d ("block: Fix a race between request queue removal and the block cgroup controller")
      Signed-off-by: default avatarBart Van Assche <bart.vanassche@wdc.com>
      Cc: Ming Lei <ming.lei@redhat.com>
      Cc: Joseph Qi <joseph.qi@linux.alibaba.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      37f9579f
    • Mathieu Malaterre's avatar
      backing: silence compiler warning using __printf · a93f00b3
      Mathieu Malaterre authored
      __printf marker was added in commit d2cc4dde ("bdi_register: add
      __printf verification, fix arg mismatch") for function `bdi_register`
      since it is useful to verify format and arguments. Apply equivalent gcc
      attribute to `bdi_register_va`.
      
      Remove warning triggered with W=1:
      
        mm/backing-dev.c:881:2: warning: function might be possible candidate for ‘gnu_printf’ format attribute [-Wsuggest-attribute=format]
      Reviewed-by: default avatarJan Kara <jack@suse.cz>
      Signed-off-by: default avatarMathieu Malaterre <malat@debian.org>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      a93f00b3
    • Ming Lei's avatar
      blk-mq: remove code for dealing with remapping queue · 37c7c6c7
      Ming Lei authored
      Firstly, from commit 4b855ad3 ("blk-mq: Create hctx for each present CPU),
      blk-mq doesn't remap queue any more after CPU topo is changed.
      
      Secondly, set->nr_hw_queues can't be bigger than nr_cpu_ids, and now we map
      all possible CPUs to hw queues, so at least one CPU is mapped to each hctx.
      
      So queue mapping has became static and fixed just like percpu variable, and
      we don't need to handle queue remapping any more.
      
      Cc: Stefan Haberland <sth@linux.vnet.ibm.com>
      Tested-by: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
      Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
      Reviewed-by: default avatarSagi Grimberg <sagi@grimberg.me>
      Signed-off-by: default avatarMing Lei <ming.lei@redhat.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      37c7c6c7
    • Ming Lei's avatar
      blk-mq: reimplement blk_mq_hw_queue_mapped · 127276c6
      Ming Lei authored
      Now the actual meaning of queue mapped is that if there is any online
      CPU mapped to this hctx, so implement blk_mq_hw_queue_mapped() in this
      way.
      
      Cc: Stefan Haberland <sth@linux.vnet.ibm.com>
      Tested-by: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
      Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
      Reviewed-by: default avatarSagi Grimberg <sagi@grimberg.me>
      Signed-off-by: default avatarMing Lei <ming.lei@redhat.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      127276c6
    • Ming Lei's avatar
      blk-mq: don't check queue mapped in __blk_mq_delay_run_hw_queue() · efea8450
      Ming Lei authored
      There are several reasons for removing the check:
      
      1) blk_mq_hw_queue_mapped() returns true always now since each hctx
      may be mapped by one CPU at least
      
      2) when there isn't any online CPU mapped to this hctx, there won't
      be any IO queued to this CPU, blk_mq_run_hw_queue() only runs queue
      if there is IO queued to this hctx
      
      3) If __blk_mq_delay_run_hw_queue() is called by blk_mq_delay_run_hw_queue(),
      which is run from blk_mq_dispatch_rq_list() or scsi_mq_get_budget(), and
      the hctx to be handled has to be mapped.
      
      Cc: Stefan Haberland <sth@linux.vnet.ibm.com>
      Tested-by: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
      Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
      Reviewed-by: default avatarSagi Grimberg <sagi@grimberg.me>
      Signed-off-by: default avatarMing Lei <ming.lei@redhat.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      efea8450
    • Ming Lei's avatar
      blk-mq: remove blk_mq_delay_queue() · 15fe8a90
      Ming Lei authored
      No driver uses this interface any more, so remove it.
      
      Cc: Stefan Haberland <sth@linux.vnet.ibm.com>
      Tested-by: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
      Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
      Reviewed-by: default avatarSagi Grimberg <sagi@grimberg.me>
      Signed-off-by: default avatarMing Lei <ming.lei@redhat.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      15fe8a90
    • Ming Lei's avatar
      blk-mq: introduce blk_mq_hw_queue_first_cpu() to figure out first cpu · f82ddf19
      Ming Lei authored
      This patch introduces helper of blk_mq_hw_queue_first_cpu() for
      figuring out the hctx's first cpu, and code duplication can be
      avoided.
      
      Cc: Stefan Haberland <sth@linux.vnet.ibm.com>
      Tested-by: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
      Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
      Reviewed-by: default avatarSagi Grimberg <sagi@grimberg.me>
      Signed-off-by: default avatarMing Lei <ming.lei@redhat.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      f82ddf19
    • Ming Lei's avatar
      blk-mq: avoid to write intermediate result to hctx->next_cpu · 476f8c98
      Ming Lei authored
      This patch figures out the final selected CPU, then writes
      it to hctx->next_cpu once, then we can avoid to intermediate
      next cpu observed from other dispatch paths.
      
      Cc: Stefan Haberland <sth@linux.vnet.ibm.com>
      Tested-by: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
      Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
      Reviewed-by: default avatarSagi Grimberg <sagi@grimberg.me>
      Signed-off-by: default avatarMing Lei <ming.lei@redhat.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      476f8c98
    • Ming Lei's avatar
      blk-mq: don't keep offline CPUs mapped to hctx 0 · bffa9909
      Ming Lei authored
      From commit 4b855ad3 ("blk-mq: Create hctx for each present CPU),
      blk-mq doesn't remap queue after CPU topo is changed, that said when
      some of these offline CPUs become online, they are still mapped to
      hctx 0, then hctx 0 may become the bottleneck of IO dispatch and
      completion.
      
      This patch sets up the mapping from the beginning, and aligns to
      queue mapping for PCI device (blk_mq_pci_map_queues()).
      
      Cc: Stefan Haberland <sth@linux.vnet.ibm.com>
      Cc: Keith Busch <keith.busch@intel.com>
      Cc: stable@vger.kernel.org
      Fixes: 4b855ad3 ("blk-mq: Create hctx for each present CPU)
      Tested-by: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
      Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
      Reviewed-by: default avatarSagi Grimberg <sagi@grimberg.me>
      Signed-off-by: default avatarMing Lei <ming.lei@redhat.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      bffa9909
    • Ming Lei's avatar
      blk-mq: make sure that correct hctx->next_cpu is set · a1c735fb
      Ming Lei authored
      From commit 20e4d813 (blk-mq: simplify queue mapping & schedule
      with each possisble CPU), one hctx can be mapped from all offline CPUs,
      then hctx->next_cpu can be set as wrong.
      
      This patch fixes this issue by making hctx->next_cpu pointing to the
      first CPU in hctx->cpumask if all CPUs in hctx->cpumask are offline.
      
      Cc: Stefan Haberland <sth@linux.vnet.ibm.com>
      Tested-by: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
      Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
      Reviewed-by: default avatarSagi Grimberg <sagi@grimberg.me>
      Fixes: 20e4d813 ("blk-mq: simplify queue mapping & schedule with each possisble CPU")
      Cc: stable@vger.kernel.org
      Signed-off-by: default avatarMing Lei <ming.lei@redhat.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      a1c735fb
    • Omar Sandoval's avatar
      loop: fix LOOP_GET_STATUS lock imbalance · bdac616d
      Omar Sandoval authored
      Commit 2d1d4c1e made loop_get_status() drop lo_ctx_mutex before
      returning, but the loop_get_status_old(), loop_get_status64(), and
      loop_get_status_compat() wrappers don't call loop_get_status() if the
      passed argument is NULL. The callers expect that the lock is dropped, so
      make sure we drop it in that case, too.
      
      Reported-by: syzbot+31e8daa8b3fc129e75f2@syzkaller.appspotmail.com
      Fixes: 2d1d4c1e ("loop: don't call into filesystem while holding lo_ctl_mutex")
      Signed-off-by: default avatarOmar Sandoval <osandov@fb.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      bdac616d
    • Tetsuo Handa's avatar
      block/loop: fix deadlock after loop_set_status · 1e047eaa
      Tetsuo Handa authored
      syzbot is reporting deadlocks at __blkdev_get() [1].
      
      ----------------------------------------
      [   92.493919] systemd-udevd   D12696   525      1 0x00000000
      [   92.495891] Call Trace:
      [   92.501560]  schedule+0x23/0x80
      [   92.502923]  schedule_preempt_disabled+0x5/0x10
      [   92.504645]  __mutex_lock+0x416/0x9e0
      [   92.510760]  __blkdev_get+0x73/0x4f0
      [   92.512220]  blkdev_get+0x12e/0x390
      [   92.518151]  do_dentry_open+0x1c3/0x2f0
      [   92.519815]  path_openat+0x5d9/0xdc0
      [   92.521437]  do_filp_open+0x7d/0xf0
      [   92.527365]  do_sys_open+0x1b8/0x250
      [   92.528831]  do_syscall_64+0x6e/0x270
      [   92.530341]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
      
      [   92.931922] 1 lock held by systemd-udevd/525:
      [   92.933642]  #0: 00000000a2849e25 (&bdev->bd_mutex){+.+.}, at: __blkdev_get+0x73/0x4f0
      ----------------------------------------
      
      The reason of deadlock turned out that wait_event_interruptible() in
      blk_queue_enter() got stuck with bdev->bd_mutex held at __blkdev_put()
      due to q->mq_freeze_depth == 1.
      
      ----------------------------------------
      [   92.787172] a.out           S12584   634    633 0x80000002
      [   92.789120] Call Trace:
      [   92.796693]  schedule+0x23/0x80
      [   92.797994]  blk_queue_enter+0x3cb/0x540
      [   92.803272]  generic_make_request+0xf0/0x3d0
      [   92.807970]  submit_bio+0x67/0x130
      [   92.810928]  submit_bh_wbc+0x15e/0x190
      [   92.812461]  __block_write_full_page+0x218/0x460
      [   92.815792]  __writepage+0x11/0x50
      [   92.817209]  write_cache_pages+0x1ae/0x3d0
      [   92.825585]  generic_writepages+0x5a/0x90
      [   92.831865]  do_writepages+0x43/0xd0
      [   92.836972]  __filemap_fdatawrite_range+0xc1/0x100
      [   92.838788]  filemap_write_and_wait+0x24/0x70
      [   92.840491]  __blkdev_put+0x69/0x1e0
      [   92.841949]  blkdev_close+0x16/0x20
      [   92.843418]  __fput+0xda/0x1f0
      [   92.844740]  task_work_run+0x87/0xb0
      [   92.846215]  do_exit+0x2f5/0xba0
      [   92.850528]  do_group_exit+0x34/0xb0
      [   92.852018]  SyS_exit_group+0xb/0x10
      [   92.853449]  do_syscall_64+0x6e/0x270
      [   92.854944]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
      
      [   92.943530] 1 lock held by a.out/634:
      [   92.945105]  #0: 00000000a2849e25 (&bdev->bd_mutex){+.+.}, at: __blkdev_put+0x3c/0x1e0
      ----------------------------------------
      
      The reason of q->mq_freeze_depth == 1 turned out that loop_set_status()
      forgot to call blk_mq_unfreeze_queue() at error paths for
      info->lo_encrypt_type != NULL case.
      
      ----------------------------------------
      [   37.509497] CPU: 2 PID: 634 Comm: a.out Tainted: G        W        4.16.0+ #457
      [   37.513608] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 05/19/2017
      [   37.518832] RIP: 0010:blk_freeze_queue_start+0x17/0x40
      [   37.521778] RSP: 0018:ffffb0c2013e7c60 EFLAGS: 00010246
      [   37.524078] RAX: 0000000000000000 RBX: ffff8b07b1519798 RCX: 0000000000000000
      [   37.527015] RDX: 0000000000000002 RSI: ffffb0c2013e7cc0 RDI: ffff8b07b1519798
      [   37.529934] RBP: ffffb0c2013e7cc0 R08: 0000000000000008 R09: 47a189966239b898
      [   37.532684] R10: dad78b99b278552f R11: 9332dca72259d5ef R12: ffff8b07acd73678
      [   37.535452] R13: 0000000000004c04 R14: 0000000000000000 R15: ffff8b07b841e940
      [   37.538186] FS:  00007fede33b9740(0000) GS:ffff8b07b8e80000(0000) knlGS:0000000000000000
      [   37.541168] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
      [   37.543590] CR2: 00000000206fdf18 CR3: 0000000130b30006 CR4: 00000000000606e0
      [   37.546410] Call Trace:
      [   37.547902]  blk_freeze_queue+0x9/0x30
      [   37.549968]  loop_set_status+0x67/0x3c0 [loop]
      [   37.549975]  loop_set_status64+0x3b/0x70 [loop]
      [   37.549986]  lo_ioctl+0x223/0x810 [loop]
      [   37.549995]  blkdev_ioctl+0x572/0x980
      [   37.550003]  block_ioctl+0x34/0x40
      [   37.550006]  do_vfs_ioctl+0xa7/0x6d0
      [   37.550017]  ksys_ioctl+0x6b/0x80
      [   37.573076]  SyS_ioctl+0x5/0x10
      [   37.574831]  do_syscall_64+0x6e/0x270
      [   37.576769]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
      ----------------------------------------
      
      [1] https://syzkaller.appspot.com/bug?id=cd662bc3f6022c0979d01a262c318fab2ee9b56fSigned-off-by: default avatarTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
      Reported-by: default avatarsyzbot <bot+48594378e9851eab70bcd6f99327c7db58c5a28a@syzkaller.appspotmail.com>
      Fixes: ecdd0959 ("block/loop: fix race between I/O and set_status")
      Cc: Ming Lei <tom.leiming@gmail.com>
      Cc: Dmitry Vyukov <dvyukov@google.com>
      Cc: stable <stable@vger.kernel.org>
      Cc: Jens Axboe <axboe@fb.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      1e047eaa
    • Ming Lei's avatar
      blk-mq: order getting budget and driver tag · 0bca799b
      Ming Lei authored
      This patch orders getting budget and driver tag by making sure to acquire
      driver tag after budget is got, this way can help to avoid the following
      race:
      
      1) before dispatch request from scheduler queue, get one budget first, then
      dequeue a request, call it request A.
      
      2) in another IO path for dispatching request B which is from hctx->dispatch,
      driver tag is got, then try to get budget in blk_mq_dispatch_rq_list(),
      unfortunately the budget is held by request A.
      
      3) meantime blk_mq_dispatch_rq_list() is called for dispatching request
      A, and try to get driver tag first, unfortunately no driver tag is
      available because the driver tag is held by request B
      
      4) both two IO pathes can't move on, and IO stall is caused.
      
      This issue can be observed when running dbench on USB storage.
      
      This patch fixes this issue by always getting budget before getting
      driver tag.
      
      Cc: stable@vger.kernel.org
      Fixes: de148297 ("blk-mq: introduce .get_budget and .put_budget in blk_mq_ops")
      Cc: Christoph Hellwig <hch@lst.de>
      Cc: Bart Van Assche <bart.vanassche@wdc.com>
      Cc: Omar Sandoval <osandov@fb.com>
      Signed-off-by: default avatarMing Lei <ming.lei@redhat.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      0bca799b
  4. 05 Apr, 2018 22 commits
    • Linus Torvalds's avatar
      Merge tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi · 052c220d
      Linus Torvalds authored
      Pull SCSI updates from James Bottomley:
       "This is mostly updates of the usual drivers: arcmsr, qla2xx, lpfc,
        ufs, mpt3sas, hisi_sas.
      
        In addition we have removed several really old drivers: sym53c416,
        NCR53c406a, fdomain, fdomain_cs and removed the old scsi_module.c
        initialization from all remaining drivers.
      
        Plus an assortment of bug fixes, initialization errors and other minor
        fixes"
      
      * tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (168 commits)
        scsi: ufs: Add support for Auto-Hibernate Idle Timer
        scsi: ufs: sysfs: reworking of the rpm_lvl and spm_lvl entries
        scsi: qla2xxx: fx00 copypaste typo
        scsi: qla2xxx: fix error message on <qla2400
        scsi: smartpqi: update driver version
        scsi: smartpqi: workaround fw bug for oq deletion
        scsi: arcmsr: Change driver version to v1.40.00.05-20180309
        scsi: arcmsr: Sleep to avoid CPU stuck too long for waiting adapter ready
        scsi: arcmsr: Handle adapter removed due to thunderbolt cable disconnection.
        scsi: arcmsr: Rename ACB_F_BUS_HANG_ON to ACB_F_ADAPTER_REMOVED for adapter hot-plug
        scsi: qla2xxx: Update driver version to 10.00.00.06-k
        scsi: qla2xxx: Fix Async GPN_FT for FCP and FC-NVMe scan
        scsi: qla2xxx: Cleanup code to improve FC-NVMe error handling
        scsi: qla2xxx: Fix FC-NVMe IO abort during driver reset
        scsi: qla2xxx: Fix retry for PRLI RJT with reason of BUSY
        scsi: qla2xxx: Remove nvme_done_list
        scsi: qla2xxx: Return busy if rport going away
        scsi: qla2xxx: Fix n2n_ae flag to prevent dev_loss on PDB change
        scsi: qla2xxx: Add FC-NVMe abort processing
        scsi: qla2xxx: Add changes for devloss timeout in driver
        ...
      052c220d
    • Linus Torvalds's avatar
      Merge tag 'for-4.17/block-20180402' of git://git.kernel.dk/linux-block · 3526dd0c
      Linus Torvalds authored
      Pull block layer updates from Jens Axboe:
       "It's a pretty quiet round this time, which is nice. This contains:
      
         - series from Bart, cleaning up the way we set/test/clear atomic
           queue flags.
      
         - series from Bart, fixing races between gendisk and queue
           registration and removal.
      
         - set of bcache fixes and improvements from various folks, by way of
           Michael Lyle.
      
         - set of lightnvm updates from Matias, most of it being the 1.2 to
           2.0 transition.
      
         - removal of unused DIO flags from Nikolay.
      
         - blk-mq/sbitmap memory ordering fixes from Omar.
      
         - divide-by-zero fix for BFQ from Paolo.
      
         - minor documentation patches from Randy.
      
         - timeout fix from Tejun.
      
         - Alpha "can't write a char atomically" fix from Mikulas.
      
         - set of NVMe fixes by way of Keith.
      
         - bsg and bsg-lib improvements from Christoph.
      
         - a few sed-opal fixes from Jonas.
      
         - cdrom check-disk-change deadlock fix from Maurizio.
      
         - various little fixes, comment fixes, etc from various folks"
      
      * tag 'for-4.17/block-20180402' of git://git.kernel.dk/linux-block: (139 commits)
        blk-mq: Directly schedule q->timeout_work when aborting a request
        blktrace: fix comment in blktrace_api.h
        lightnvm: remove function name in strings
        lightnvm: pblk: remove some unnecessary NULL checks
        lightnvm: pblk: don't recover unwritten lines
        lightnvm: pblk: implement 2.0 support
        lightnvm: pblk: implement get log report chunk
        lightnvm: pblk: rename ppaf* to addrf*
        lightnvm: pblk: check for supported version
        lightnvm: implement get log report chunk helpers
        lightnvm: make address conversions depend on generic device
        lightnvm: add support for 2.0 address format
        lightnvm: normalize geometry nomenclature
        lightnvm: complete geo structure with maxoc*
        lightnvm: add shorten OCSSD version in geo
        lightnvm: add minor version to generic geometry
        lightnvm: simplify geometry structure
        lightnvm: pblk: refactor init/exit sequences
        lightnvm: Avoid validation of default op value
        lightnvm: centralize permission check for lightnvm ioctl
        ...
      3526dd0c
    • Linus Torvalds's avatar
      Merge tag 'edac_for_4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp · dd972f92
      Linus Torvalds authored
      Pull EDAC updates from Borislav Petkov:
       "Noteworthy is the NVDIMM support:
      
         - NVDIMM support to EDAC (Tony Luck)
      
         - misc fixes"
      
      * tag 'edac_for_4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
        EDAC, sb_edac: Remove variable length array usage
        EDAC, skx_edac: Detect non-volatile DIMMs
        firmware, DMI: Add function to look up a handle and return DIMM size
        acpi, nfit: Add function to look up nvdimm device and provide SMBIOS handle
        EDAC: Add new memory type for non-volatile DIMMs
        EDAC: Drop duplicated array of strings for memory type names
        EDAC, layerscape: Allow building for LS1021A
      dd972f92
    • Kees Cook's avatar
      kernel.h: Retain constant expression output for max()/min() · 3c8ba0d6
      Kees Cook authored
      In the effort to remove all VLAs from the kernel[1], it is desirable to
      build with -Wvla.  However, this warning is overly pessimistic, in that
      it is only happy with stack array sizes that are declared as constant
      expressions, and not constant values.  One case of this is the
      evaluation of the max() macro which, due to its construction, ends up
      converting constant expression arguments into a constant value result.
      
      All attempts to rewrite this macro with __builtin_constant_p() failed
      with older compilers (e.g.  gcc 4.4)[2].  However, Martin Uecker,
      constructed[3] a mind-shattering solution that works everywhere.
      Cthulhu fhtagn!
      
      This patch updates the min()/max() macros to evaluate to a constant
      expression when called on constant expression arguments.  This removes
      several false-positive stack VLA warnings from an x86 allmodconfig build
      when -Wvla is added:
      
        $ diff -u before.txt after.txt | grep ^-
        -drivers/input/touchscreen/cyttsp4_core.c:871:2: warning: ISO C90 forbids variable length array ‘ids’ [-Wvla]
        -fs/btrfs/tree-checker.c:344:4: warning: ISO C90 forbids variable length array ‘namebuf’ [-Wvla]
        -lib/vsprintf.c:747:2: warning: ISO C90 forbids variable length array ‘sym’ [-Wvla]
        -net/ipv4/proc.c:403:2: warning: ISO C90 forbids variable length array ‘buff’ [-Wvla]
        -net/ipv6/proc.c:198:2: warning: ISO C90 forbids variable length array ‘buff’ [-Wvla]
        -net/ipv6/proc.c:218:2: warning: ISO C90 forbids variable length array ‘buff64’ [-Wvla]
      
      This also updates two cases where different enums were being compared
      and explicitly casts them to int (which matches the old side-effect of
      the single-evaluation code): one in tpm/tpm_tis_core.h, and one in
      drm/drm_color_mgmt.c.
      
       [1] https://lkml.org/lkml/2018/3/7/621
       [2] https://lkml.org/lkml/2018/3/10/170
       [3] https://lkml.org/lkml/2018/3/20/845Co-Developed-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      Co-Developed-by: default avatarMartin Uecker <Martin.Uecker@med.uni-goettingen.de>
      Signed-off-by: default avatarKees Cook <keescook@chromium.org>
      Acked-by: default avatarIngo Molnar <mingo@kernel.org>
      Acked-by: default avatarMiguel Ojeda <miguel.ojeda.sandonis@gmail.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      3c8ba0d6
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input · 5414ab31
      Linus Torvalds authored
      Pull input updates from Dmitry Torokhov:
      
       - new driver for PhoenixRC Flight Controller Adapter
      
       - new driver for RAVE SP Power button
      
       - fixes for autosuspend-related deadlocks in a few unput USB dirvers
      
       - support for 2nd wheel in ATech PS/2 mouse
      
       - fix for ALPS trackpoint detection on Thinkpad L570 and Latitude 7370
      
       - bunch of cleanups in various in PS/2 protocols
      
       - other assorted changes and fixes
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (35 commits)
        Input: i8042 - enable MUX on Sony VAIO VGN-CS series to fix touchpad
        Input: stmfts, s6sy761 - update my e-mail
        Input: stmfts - use async probe & suspend/resume to avoid 2s delay
        Input: ALPS - fix TrackStick detection on Thinkpad L570 and Latitude 7370
        Input: xpad - add PDP device id 0x02a4
        Input: alps - report pressure of v3 and v7 trackstick
        Input: pxrc - new driver for PhoenixRC Flight Controller Adapter
        Input: usbtouchscreen - do not rely on input_dev->users
        Input: usbtouchscreen - fix deadlock in autosuspend
        Input: pegasus_notetaker - do not rely on input_dev->users
        Input: pagasus_notetaker - fix deadlock in autosuspend
        Input: synaptics_usb - do not rely on input_dev->users
        Input: synaptics_usb - fix deadlock in autosuspend
        Input: gpio-keys - add support for wakeup event action
        Input: appletouch - use true and false for boolean values
        Input: silead - add Chuwi Hi8 support
        Input: analog - use get_cycles() on PPC
        Input: stmpe-keypad - remove VLA usage
        Input: i8042 - add Lenovo ThinkPad L460 to i8042 reset list
        Input: add RAVE SP Powerbutton driver
        ...
      5414ab31
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial · 672a9c10
      Linus Torvalds authored
      Pull trivial tree updates from Jiri Kosina.
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial:
        kfifo: fix inaccurate comment
        tools/thermal: tmon: fix for segfault
        net: Spelling s/stucture/structure/
        edd: don't spam log if no EDD information is present
        Documentation: Fix early-microcode.txt references after file rename
        tracing: Block comments should align the * on each line
        treewide: Fix typos in printk
        GenWQE: Fix a typo in two comments
        treewide: Align function definition open/close braces
      672a9c10
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid · e8403b49
      Linus Torvalds authored
      Pull HID updates from Jiri Kosina:
      
       - 3rd generation Wacom Intuos BT device support from Aaron Armstrong
         Skomra
      
       - support for NSG-MR5U and NSG-MR7U devices from Todd Kelner
      
       - multitouch Razer Blade Stealth support from Benjamin Tissoires
      
       - Elantech touchpad support from Alexandrov Stansilav
      
       - a few other scattered-around fixes and cleanups to drivers and
         generic code
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (31 commits)
        HID: google: Enable PM Full On mode when adjusting backlight
        HID: google: add google hammer HID driver
        HID: core: reset the quirks before calling probe again
        HID: multitouch: do not set HID_QUIRK_NO_INIT_REPORTS
        HID: core: remove the need for HID_QUIRK_NO_EMPTY_INPUT
        HID: use BIT() macro for quirks too
        HID: use BIT macro instead of plain integers for flags
        HID: multitouch: remove dead zones of Razer Blade Stealth
        HID: multitouch: export a quirk for the button handling of touchpads
        HID: usbhid: extend the polling interval configuration to keyboards
        HID: ntrig: document sysfs interface
        HID: wacom: wacom_wac_collection() is local to wacom_wac.c
        HID: wacom: generic: add the "Report Valid" usage
        HID: wacom: generic: Support multiple tools per report
        HID: wacom: Add support for 3rd generation Intuos BT
        HID: core: rewrite the hid-generic automatic unbind
        HID: sony: Add touchpad support for NSG-MR5U and NSG-MR7U remotes
        HID: hid-multitouch: Use true and false for boolean values
        HID: hid-ntrig: use true and false for boolean values
        HID: logitech-hidpp: document sysfs interface
        ...
      e8403b49
    • Linus Torvalds's avatar
      Merge tag 'sound-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound · e02d37bf
      Linus Torvalds authored
      Pull sound updates from Takashi Iwai:
       "This became a large update. The changes are scattered widely, and the
        majority of them are attributed to ASoC componentization. The gitk
        output made me dizzy, but it's slightly better than London tube.
      
        OK, below are some highlights:
      
         - Continued hardening works in ALSA PCM core; most of the existing
           syzkaller reports should have been covered.
      
         - USB-audio got the initial USB Audio Class 3 support, as well as
           UAC2 jack detection support and more DSD-device support.
      
         - ASoC componentization: finally each individual driver was converted
           to components framework, which is more future-proof for further
           works. Most of conversations were systematic.
      
         - Lots of fixes for Intel Baytrail / Cherrytrail devices with Realtek
           codecs, typically tablets and small PCs.
      
         - Fixes / cleanups for Samsung Odroid systems
      
         - Cleanups in Freescale SSI driver
      
         - New ASoC drivers:
            * AKM AK4458 and AK5558 codecs
            * A few AMD based machine drivers
            * Intel Kabylake machine drivers
            * Maxim MAX9759 codec
            * Motorola CPCAP codec
            * Socionext Uniphier SoCs
            * TI PCM1789 and TDA7419 codecs
      
         - Retirement of Blackfin drivers along with architecture removal"
      
      * tag 'sound-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (497 commits)
        ALSA: pcm: Fix UAF at PCM release via PCM timer access
        ALSA: usb-audio: silence a static checker warning
        ASoC: tscs42xx: Remove owner assignment from i2c_driver
        ASoC: mediatek: remove "simple-mfd" in the example
        ASoC: cpcap: replace codec to component
        ASoC: Intel: bytcr_rt5651: don't use codec anymore
        ASoC: amd: don't use codec anymore
        ALSA: usb-audio: fix memory leak on cval
        ALSA: pcm: Fix mutex unbalance in OSS emulation ioctls
        ASoC: topology: Fix kcontrol name string handling
        ALSA: aloop: Mark paused device as inactive
        ALSA: usb-audio: update clock valid control
        ALSA: usb-audio: UAC2 jack detection
        ALSA: pcm: Return -EBUSY for OSS ioctls changing busy streams
        ALSA: pcm: Avoid potential races between OSS ioctls and read/write
        ALSA: usb-audio: Integrate native DSD support for ITF-USB based DACs.
        ALSA: usb-audio: FIX native DSD support for TEAC UD-501 DAC
        ALSA: usb-audio: Add native DSD support for Luxman DA-06
        ALSA: usb-audio: fix uac control query argument
        ASoC: nau8824: recover system clock when device changes
        ...
      e02d37bf
    • Linus Torvalds's avatar
      Merge tag 'dma-mapping-4.17' of git://git.infradead.org/users/hch/dma-mapping · 652ede37
      Linus Torvalds authored
      Pull dma-mapping updates from Christoph Hellwig:
       "Very light this round as the interesting dma mapping changes went
        through the x86 tree.
      
        This just provides proper stubs for architectures not supporting dma
        (Geert Uytterhoeven)"
      
      * tag 'dma-mapping-4.17' of git://git.infradead.org/users/hch/dma-mapping:
        usb: gadget: Add NO_DMA dummies for DMA mapping API
        scsi: Add NO_DMA dummies for SCSI DMA mapping API
        mm: Add NO_DMA dummies for DMA pool API
        dma-coherent: Add NO_DMA dummies for managed DMA API
        dma-mapping: Convert NO_DMA get_dma_ops() into a real dummy
      652ede37
    • Linus Torvalds's avatar
      Merge tag 'gpio-v4.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio · 1b2951dd
      Linus Torvalds authored
      Pull GPIO updates from Linus Walleij:
       "This is the bulk of GPIO changes for the v4.17 kernel cycle:
      
        New drivers:
      
         - Nintendo Wii GameCube GPIO, known as "Hollywood"
      
         - Raspberry Pi mailbox service GPIO expander
      
         - Spreadtrum main SC9860 SoC and IEC GPIO controllers.
      
        Improvements:
      
         - Implemented .get_multiple() callback for most of the
           high-performance industrial GPIO cards for the ISA bus.
      
         - ISA GPIO drivers now select the ISA_BUS_API instead of depending on
           it. This is merged with the same pattern for all the ISA drivers
           and some other Kconfig cleanups related to this.
      
        Cleanup:
      
         - Delete the TZ1090 GPIO drivers following the deletion of this SoC
           from the ARM tree.
      
         - Move the documentation over to driver-api to conform with the rest
           of the kernel documentation build.
      
         - Continue to make the GPIO drivers include only
           <linux/gpio/driver.h> and not the too broad <linux/gpio.h> that we
           want to get rid of.
      
         - Managed to remove VLA allocation from two drivers pending more
           fixes in this area for the next merge window.
      
         - Misc janitorial fixes"
      
      * tag 'gpio-v4.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (77 commits)
        gpio: Add Spreadtrum PMIC EIC driver support
        gpio: Add Spreadtrum EIC driver support
        dt-bindings: gpio: Add Spreadtrum EIC controller documentation
        gpio: ath79: Fix potential NULL dereference in ath79_gpio_probe()
        pinctrl: qcom: Don't allow protected pins to be requested
        gpiolib: Support 'gpio-reserved-ranges' property
        gpiolib: Change bitmap allocation to kmalloc_array
        gpiolib: Extract mask allocation into subroutine
        dt-bindings: gpio: Add a gpio-reserved-ranges property
        gpio: mockup: fix a potential crash when creating debugfs entries
        gpio: pca953x: add compatibility for pcal6524 and pcal9555a
        gpio: dwapb: Add support for a bus clock
        gpio: Remove VLA from xra1403 driver
        gpio: Remove VLA from MAX3191X driver
        gpio: ws16c48: Implement get_multiple callback
        gpio: gpio-mm: Implement get_multiple callback
        gpio: 104-idi-48: Implement get_multiple callback
        gpio: 104-dio-48e: Implement get_multiple callback
        gpio: pcie-idio-24: Implement get_multiple/set_multiple callbacks
        gpio: pci-idio-16: Implement get_multiple callback
        ...
      1b2951dd
    • Jiri Kosina's avatar
      Merge branch 'for-4.17/wacom' into for-linus · 9931753b
      Jiri Kosina authored
      Pull support for 3rd generation Intuos BT device
      9931753b
    • Jiri Kosina's avatar
      Merge branch 'for-4.17/upstream' into for-linus · e2d39e0f
      Jiri Kosina authored
      Pull a few small generic code cleanups.
      e2d39e0f
    • Jiri Kosina's avatar
      Merge branch 'for-4.17/sony' into for-linus · 108ff0e8
      Jiri Kosina authored
      Pull support for NSG-MR5U and NSG-MR7U devices.
      108ff0e8
    • Jiri Kosina's avatar
      Merge branch 'for-4.17/multitouch' into for-linus · af73686e
      Jiri Kosina authored
      Pull Razer Blade Stealth support improvement and a few generic cleanups
      af73686e
    • Jiri Kosina's avatar
      Merge branch 'for-4.17/hid-i2c' into for-linus · f73fee74
      Jiri Kosina authored
      Small hid-i2c acpi cleanup.
      f73fee74
    • Jiri Kosina's avatar
      Merge branch 'for-4.17/hid-elan' into for-linus · 7a8c1c4e
      Jiri Kosina authored
      Pull new hid-elan driver, currently providing support for touchpad
      found in certain HP Pavilion x2 laptops.
      7a8c1c4e
    • Jiri Kosina's avatar
      Merge branch 'for-4.17/google-hammer' into for-linus · d463fd44
      Jiri Kosina authored
      Support for Google Hammer device.
      d463fd44
    • Jiri Kosina's avatar
      Merge branch 'for-4.17/elecom' into for-linus · a9ef00ae
      Jiri Kosina authored
      Support for new elecom device.
      a9ef00ae
    • Linus Torvalds's avatar
      Merge tag 'char-misc-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc · 06dd3dfe
      Linus Torvalds authored
      Pull char/misc updates from Greg KH:
       "Here is the big set of char/misc driver patches for 4.17-rc1.
      
        There are a lot of little things in here, nothing huge, but all
        important to the different hardware types involved:
      
         -  thunderbolt driver updates
      
         -  parport updates (people still care...)
      
         -  nvmem driver updates
      
         -  mei updates (as always)
      
         -  hwtracing driver updates
      
         -  hyperv driver updates
      
         -  extcon driver updates
      
         -  ... and a handful of even smaller driver subsystem and individual
            driver updates
      
        All of these have been in linux-next with no reported issues"
      
      * tag 'char-misc-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (149 commits)
        hwtracing: Add HW tracing support menu
        intel_th: Add ACPI glue layer
        intel_th: Allow forcing host mode through drvdata
        intel_th: Pick up irq number from resources
        intel_th: Don't touch switch routing in host mode
        intel_th: Use correct method of finding hub
        intel_th: Add SPDX GPL-2.0 header to replace GPLv2 boilerplate
        stm class: Make dummy's master/channel ranges configurable
        stm class: Add SPDX GPL-2.0 header to replace GPLv2 boilerplate
        MAINTAINERS: Bestow upon myself the care for drivers/hwtracing
        hv: add SPDX license id to Kconfig
        hv: add SPDX license to trace
        Drivers: hv: vmbus: do not mark HV_PCIE as perf_device
        Drivers: hv: vmbus: respect what we get from hv_get_synint_state()
        /dev/mem: Avoid overwriting "err" in read_mem()
        eeprom: at24: use SPDX identifier instead of GPL boiler-plate
        eeprom: at24: simplify the i2c functionality checking
        eeprom: at24: fix a line break
        eeprom: at24: tweak newlines
        eeprom: at24: refactor at24_probe()
        ...
      06dd3dfe
    • Linus Torvalds's avatar
      Merge tag 'driver-core-4.17-rc1' of... · 38047d5c
      Linus Torvalds authored
      Merge tag 'driver-core-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
      
      Pull driver core updates from Greg KH:
       "Here is the "big" set of driver core patches for 4.17-rc1.
      
        There's really not much here, just a bunch of firmware code
        refactoring from Luis as he attempts to wrangle that codebase into
        something that is managable, along with a bunch of userspace tests for
        it. Other than that, a handful of small bugfixes and reverts of things
        that didn't work out.
      
        Full details are in the shortlog, it's not all that much.
      
        All of these have been in linux-next for a while with no reported
        issues"
      
      * tag 'driver-core-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (30 commits)
        drivers: base: remove check for callback in coredump_store()
        mt7601u: use firmware_request_cache() to address cache on reboot
        firmware: add firmware_request_cache() to help with cache on reboot
        firmware: fix typo on pr_info_once() when ignore_sysfs_fallback is used
        firmware: explicitly include vmalloc.h
        firmware: ensure the firmware cache is not used on incompatible calls
        test_firmware: modify custom fallback tests to use unique files
        firmware: add helper to check to see if fw cache is setup
        firmware: fix checking for return values for fw_add_devm_name()
        rename: _request_firmware_load() fw_load_sysfs_fallback()
        test_firmware: test three firmware kernel configs using a proc knob
        test_firmware: expand on library with shared helpers
        firmware: enable to force disable the fallback mechanism at run time
        firmware: enable run time change of forcing fallback loader
        firmware: move firmware loader into its own directory
        firmware: split firmware fallback functionality into its own file
        firmware: move loading timeout under struct firmware_fallback_config
        firmware: use helpers for setting up a temporary cache timeout
        firmware: simplify CONFIG_FW_LOADER_USER_HELPER_FALLBACK further
        drivers: base: add description for .coredump() callback
        ...
      38047d5c
    • Linus Torvalds's avatar
      Merge tag 'staging-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging · df34df48
      Linus Torvalds authored
      Pull staging/IIO updates from Greg KH:
       "Here is the big set of Staging/IIO driver patches for 4.17-rc1.
      
        It is a lot, over 500 changes, but not huge by previous kernel release
        standards. We deleted more lines than we added again (27k added vs.
        91k remvoed), thanks to finally being able to delete the IRDA drivers
        and networking code.
      
        We also deleted the ccree crypto driver, but that's coming back in
        through the crypto tree to you, in a much cleaned-up form.
      
        Added this round is at lot of "mt7621" device support, which is for an
        embedded device that Neil Brown cares about, and of course a handful
        of new IIO drivers as well.
      
        And finally, the fsl-mc core code moved out of the staging tree to the
        "real" part of the kernel, which is nice to see happen as well.
      
        Full details are in the shortlog, which has all of the tiny cleanup
        patches described.
      
        All of these have been in linux-next for a while with no reported
        issues"
      
      * tag 'staging-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (579 commits)
        staging: rtl8723bs: Remove yield call, replace with cond_resched()
        staging: rtl8723bs: Replace yield() call with cond_resched()
        staging: rtl8723bs: Remove unecessary newlines from 'odm.h'.
        staging: rtl8723bs: Rework 'struct _ODM_Phy_Status_Info_' coding style.
        staging: rtl8723bs: Rework 'struct _ODM_Per_Pkt_Info_' coding style.
        staging: rtl8723bs: Replace NULL pointer comparison with '!'.
        staging: rtl8723bs: Factor out rtl8723bs_recv_tasklet() sections.
        staging: rtl8723bs: Fix function signature that goes over 80 characters.
        staging: rtl8723bs: Fix lines too long in update_recvframe_attrib().
        staging: rtl8723bs: Remove unnecessary blank lines in 'rtl8723bs_recv.c'.
        staging: rtl8723bs: Change camel case to snake case in 'rtl8723bs_recv.c'.
        staging: rtl8723bs: Add missing braces in else statement.
        staging: rtl8723bs: Add spaces around ternary operators.
        staging: rtl8723bs: Fix lines with trailing open parentheses.
        staging: rtl8723bs: Remove unnecessary length #define's.
        staging: rtl8723bs: Fix IEEE80211 authentication algorithm constants.
        staging: rtl8723bs: Fix alignment in rtw_wx_set_auth().
        staging: rtl8723bs: Remove braces from single statement conditionals.
        staging: rtl8723bs: Remove unecessary braces from switch statement.
        staging: rtl8723bs: Fix newlines in rtw_wx_set_auth().
        ...
      df34df48
    • Linus Torvalds's avatar
      Merge tag 'tty-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty · 9abf8ace
      Linus Torvalds authored
      Pull tty/serial driver updates from Greg KH:
       "Here is the big set of tty and serial driver patches for 4.17-rc1
      
        Not all that big really, most are just small fixes and additions to
        existing drivers. There's a bunch of work on the imx serial driver
        recently for some reason, and a new embedded serial driver added as
        well.
      
        Full details are in the shortlog.
      
        All of these have been in the linux-next tree for a while with no
        reported issues"
      
      * tag 'tty-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (66 commits)
        serial: expose buf_overrun count through proc interface
        serial: mvebu-uart: fix tx lost characters
        tty: serial: msm_geni_serial: Fix return value check in qcom_geni_serial_probe()
        tty: serial: msm_geni_serial: Add serial driver support for GENI based QUP
        8250-men-mcb: add support for 16z025 and 16z057
        powerpc: Mark the variable earlycon_acpi_spcr_enable maybe_unused
        serial: stm32: fix initialization of RS485 mode
        ARM: dts: STi: Remove "console=ttyASN" from bootargs for STi boards
        vt: change SGR 21 to follow the standards
        serdev: Fix typo in serdev_device_alloc
        ARM: dts: STi: Fix aliases property name for STi boards
        tty: st-asc: Update tty alias
        serial: stm32: add support for RS485 hardware control mode
        dt-bindings: serial: stm32: add RS485 optional properties
        selftests: add devpts selftests
        devpts: comment devpts_mntget()
        devpts: resolve devpts bind-mounts
        devpts: hoist out check for DEVPTS_SUPER_MAGIC
        serial: 8250: Add Nuvoton NPCM UART
        serial: mxs-auart: disable clks of Alphascale ASM9260
        ...
      9abf8ace