Commit Graph

855692 Commits

Author SHA1 Message Date
Stefan Haberland
41995342b4 s390/dasd: fix endless loop after read unit address configuration
After getting a storage server event that causes the DASD device driver
to update its unit address configuration during a device shutdown there is
the possibility of an endless loop in the device driver.

In the system log there will be ongoing DASD error messages with RC: -19.

The reason is that the loop starting the ruac request only terminates when
the retry counter is decreased to 0. But in the sleep_on function there are
early exit paths that do not decrease the retry counter.

Prevent an endless loop by handling those cases separately.

Remove the unnecessary do..while loop since the sleep_on function takes
care of retries by itself.

Fixes: 8e09f21574 ("[S390] dasd: add hyper PAV support to DASD device driver, part 1")
Cc: stable@vger.kernel.org # 2.6.25+
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-08-01 20:46:14 -06:00
Damien Le Moal
0eb6ddfb86 block: Fix __blkdev_direct_IO() for bio fragments
The recent fix to properly handle IOCB_NOWAIT for async O_DIRECT IO
(patch 6a43074e2f) introduced two problems with BIO fragment handling
for direct IOs:
1) The dio size processed is calculated by incrementing the ret variable
by the size of the bio fragment issued for the dio. However, this size
is obtained directly from bio->bi_iter.bi_size AFTER the bio submission
which may result in referencing the bi_size value after the bio
completed, resulting in an incorrect value use.
2) The ret variable is not incremented by the size of the last bio
fragment issued for the bio, leading to an invalid IO size being
returned to the user.

Fix both problem by using dio->size (which is incremented before the bio
submission) to update the value of ret after bio submissions, including
for the last bio fragment issued.

Fixes: 6a43074e2f ("block: properly handle IOCB_NOWAIT for async O_DIRECT IO")
Reported-by: Masato Suzuki <masato.suzuki@wdc.com>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-08-01 13:51:18 -06:00
Denis Efremov
3d0b63c5df MAINTAINERS: floppy: take over maintainership
I would like to maintain the floppy driver. After the recent fixes,
I think I know the code pretty well. Nowadays I've got 2 physical 3.5"
readers to test all the changes.

Signed-off-by: Denis Efremov <efremov@linux.com>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-07-31 09:29:43 -06:00
Munehisa Kamata
2b5c8f0063 nbd: replace kill_bdev() with __invalidate_device() again
Commit abbbdf1249 ("replace kill_bdev() with __invalidate_device()")
once did this, but 29eaadc036 ("nbd: stop using the bdev everywhere")
resurrected kill_bdev() and it has been there since then. So buffer_head
mappings still get killed on a server disconnection, and we can still
hit the BUG_ON on a filesystem on the top of the nbd device.

  EXT4-fs (nbd0): mounted filesystem with ordered data mode. Opts: (null)
  block nbd0: Receive control failed (result -32)
  block nbd0: shutting down sockets
  print_req_error: I/O error, dev nbd0, sector 66264 flags 3000
  EXT4-fs warning (device nbd0): htree_dirblock_to_tree:979: inode #2: lblock 0: comm ls: error -5 reading directory block
  print_req_error: I/O error, dev nbd0, sector 2264 flags 3000
  EXT4-fs error (device nbd0): __ext4_get_inode_loc:4690: inode #2: block 283: comm ls: unable to read itable block
  EXT4-fs error (device nbd0) in ext4_reserve_inode_write:5894: IO failure
  ------------[ cut here ]------------
  kernel BUG at fs/buffer.c:3057!
  invalid opcode: 0000 [#1] SMP PTI
  CPU: 7 PID: 40045 Comm: jbd2/nbd0-8 Not tainted 5.1.0-rc3+ #4
  Hardware name: Amazon EC2 m5.12xlarge/, BIOS 1.0 10/16/2017
  RIP: 0010:submit_bh_wbc+0x18b/0x190
  ...
  Call Trace:
   jbd2_write_superblock+0xf1/0x230 [jbd2]
   ? account_entity_enqueue+0xc5/0xf0
   jbd2_journal_update_sb_log_tail+0x94/0xe0 [jbd2]
   jbd2_journal_commit_transaction+0x12f/0x1d20 [jbd2]
   ? __switch_to_asm+0x40/0x70
   ...
   ? lock_timer_base+0x67/0x80
   kjournald2+0x121/0x360 [jbd2]
   ? remove_wait_queue+0x60/0x60
   kthread+0xf8/0x130
   ? commit_timeout+0x10/0x10 [jbd2]
   ? kthread_bind+0x10/0x10
   ret_from_fork+0x35/0x40

With __invalidate_device(), I no longer hit the BUG_ON with sync or
unmount on the disconnected device.

Fixes: 29eaadc036 ("nbd: stop using the bdev everywhere")
Cc: linux-block@vger.kernel.org
Cc: Ratna Manoj Bolla <manoj.br@gmail.com>
Cc: nbd@other.debian.org
Cc: stable@vger.kernel.org
Cc: David Woodhouse <dwmw@amazon.com>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Munehisa Kamata <kamatam@amazon.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-07-31 08:51:56 -06:00
Miquel Raynal
090bb80370 ata: libahci: do not complain in case of deferred probe
Retrieving PHYs can defer the probe, do not spawn an error when
-EPROBE_DEFER is returned, it is normal behavior.

Fixes: b1a9edbda0 ("ata: libahci: allow to use multiple PHYs")
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-07-31 08:51:17 -06:00
Jackie Liu
d0ee879187 io_uring: fix KASAN use after free in io_sq_wq_submit_work
[root@localhost ~]# ./liburing/test/link

QEMU Standard PC report that:

[   29.379892] CPU: 0 PID: 84 Comm: kworker/u2:2 Not tainted 5.3.0-rc2-00051-g4010b622f1d2-dirty #86
[   29.379902] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[   29.379913] Workqueue: io_ring-wq io_sq_wq_submit_work
[   29.379929] Call Trace:
[   29.379953]  dump_stack+0xa9/0x10e
[   29.379970]  ? io_sq_wq_submit_work+0xbf4/0xe90
[   29.379986]  print_address_description.cold.6+0x9/0x317
[   29.379999]  ? io_sq_wq_submit_work+0xbf4/0xe90
[   29.380010]  ? io_sq_wq_submit_work+0xbf4/0xe90
[   29.380026]  __kasan_report.cold.7+0x1a/0x34
[   29.380044]  ? io_sq_wq_submit_work+0xbf4/0xe90
[   29.380061]  kasan_report+0xe/0x12
[   29.380076]  io_sq_wq_submit_work+0xbf4/0xe90
[   29.380104]  ? io_sq_thread+0xaf0/0xaf0
[   29.380152]  process_one_work+0xb59/0x19e0
[   29.380184]  ? pwq_dec_nr_in_flight+0x2c0/0x2c0
[   29.380221]  worker_thread+0x8c/0xf40
[   29.380248]  ? __kthread_parkme+0xab/0x110
[   29.380265]  ? process_one_work+0x19e0/0x19e0
[   29.380278]  kthread+0x30b/0x3d0
[   29.380292]  ? kthread_create_on_node+0xe0/0xe0
[   29.380311]  ret_from_fork+0x3a/0x50

[   29.380635] Allocated by task 209:
[   29.381255]  save_stack+0x19/0x80
[   29.381268]  __kasan_kmalloc.constprop.6+0xc1/0xd0
[   29.381279]  kmem_cache_alloc+0xc0/0x240
[   29.381289]  io_submit_sqe+0x11bc/0x1c70
[   29.381300]  io_ring_submit+0x174/0x3c0
[   29.381311]  __x64_sys_io_uring_enter+0x601/0x780
[   29.381322]  do_syscall_64+0x9f/0x4d0
[   29.381336]  entry_SYSCALL_64_after_hwframe+0x49/0xbe

[   29.381633] Freed by task 84:
[   29.382186]  save_stack+0x19/0x80
[   29.382198]  __kasan_slab_free+0x11d/0x160
[   29.382210]  kmem_cache_free+0x8c/0x2f0
[   29.382220]  io_put_req+0x22/0x30
[   29.382230]  io_sq_wq_submit_work+0x28b/0xe90
[   29.382241]  process_one_work+0xb59/0x19e0
[   29.382251]  worker_thread+0x8c/0xf40
[   29.382262]  kthread+0x30b/0x3d0
[   29.382272]  ret_from_fork+0x3a/0x50

[   29.382569] The buggy address belongs to the object at ffff888067172140
                which belongs to the cache io_kiocb of size 224
[   29.384692] The buggy address is located 120 bytes inside of
                224-byte region [ffff888067172140, ffff888067172220)
[   29.386723] The buggy address belongs to the page:
[   29.387575] page:ffffea00019c5c80 refcount:1 mapcount:0 mapping:ffff88806ace5180 index:0x0
[   29.387587] flags: 0x100000000000200(slab)
[   29.387603] raw: 0100000000000200 dead000000000100 dead000000000122 ffff88806ace5180
[   29.387617] raw: 0000000000000000 00000000800c000c 00000001ffffffff 0000000000000000
[   29.387624] page dumped because: kasan: bad access detected

[   29.387920] Memory state around the buggy address:
[   29.388771]  ffff888067172080: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
[   29.390062]  ffff888067172100: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb
[   29.391325] >ffff888067172180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   29.392578]                                         ^
[   29.393480]  ffff888067172200: fb fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc
[   29.394744]  ffff888067172280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   29.396003] ==================================================================
[   29.397260] Disabling lock debugging due to kernel taint

io_sq_wq_submit_work free and read req again.

Cc: Zhengyuan Liu <liuzhengyuan@kylinos.cn>
Cc: linux-block@vger.kernel.org
Cc: stable@vger.kernel.org
Fixes: f7b76ac9d1 ("io_uring: fix counter inc/dec mismatch in async_list")
Signed-off-by: Jackie Liu <liuyun01@kylinos.cn>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-07-31 08:45:10 -06:00
Jan Kara
89e524c04f loop: Fix mount(2) failure due to race with LOOP_SET_FD
Commit 33ec3e53e7 ("loop: Don't change loop device under exclusive
opener") made LOOP_SET_FD ioctl acquire exclusive block device reference
while it updates loop device binding. However this can make perfectly
valid mount(2) fail with EBUSY due to racing LOOP_SET_FD holding
temporarily the exclusive bdev reference in cases like this:

for i in {a..z}{a..z}; do
        dd if=/dev/zero of=$i.image bs=1k count=0 seek=1024
        mkfs.ext2 $i.image
        mkdir mnt$i
done

echo "Run"
for i in {a..z}{a..z}; do
        mount -o loop -t ext2 $i.image mnt$i &
done

Fix the problem by not getting full exclusive bdev reference in
LOOP_SET_FD but instead just mark the bdev as being claimed while we
update the binding information. This just blocks new exclusive openers
instead of failing them with EBUSY thus fixing the problem.

Fixes: 33ec3e53e7 ("loop: Don't change loop device under exclusive opener")
Cc: stable@vger.kernel.org
Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-07-30 13:16:57 -06:00
Kees Cook
71d6c505b4 libata: zpodd: Fix small read overflow in zpodd_get_mech_type()
Jeffrin reported a KASAN issue:

  BUG: KASAN: global-out-of-bounds in ata_exec_internal_sg+0x50f/0xc70
  Read of size 16 at addr ffffffff91f41f80 by task scsi_eh_1/149
  ...
  The buggy address belongs to the variable:
    cdb.48319+0x0/0x40

Much like commit 18c9a99bce ("libata: zpodd: small read overflow in
eject_tray()"), this fixes a cdb[] buffer length, this time in
zpodd_get_mech_type():

We read from the cdb[] buffer in ata_exec_internal_sg(). It has to be
ATAPI_CDB_LEN (16) bytes long, but this buffer is only 12 bytes.

Reported-by: Jeffrin Jose T <jeffrin@rajagiritech.edu.in>
Fixes: afe7595118 ("libata: identify and init ZPODD devices")
Link: https://lore.kernel.org/lkml/201907181423.E808958@keescook/
Tested-by: Jeffrin Jose T <jeffrin@rajagiritech.edu.in>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-07-29 16:00:14 -06:00
Gustavo A. R. Silva
7be21763f7 ataflop: Mark expected switch fall-through
Mark switch cases where we are expecting to fall through.

This patch fixes the following warning (Building: m68k):

drivers/block/ataflop.c: In function ‘fd_locked_ioctl’:
drivers/block/ataflop.c:1728:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
   set_capacity(floppy->disk, MAX_DISK_SIZE * 2);
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/block/ataflop.c:1729:2: note: here
  case FDFMTEND:
  ^~~~

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-07-29 15:24:58 -06:00
Linus Torvalds
609488bc97 Linux 5.3-rc2 2019-07-28 12:47:02 -07:00
Linus Torvalds
c622fc5f54 meminit fix
- Disable gcc-based stack variable auto-init under KASAN (Arnd Bergmann)
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Merge tag 'meminit-v5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull structleak fix from Kees Cook:
 "Disable gcc-based stack variable auto-init under KASAN (Arnd
  Bergmann).

  This fixes a bunch of build warnings under KASAN and the
  gcc-plugin-based stack auto-initialization features (which are
  arguably redundant, so better to let KASAN control this)"

* tag 'meminit-v5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  structleak: disable STRUCTLEAK_BYREF in combination with KASAN_STACK
2019-07-28 12:33:15 -07:00
Linus Torvalds
8e61ea11c2 Kbuild fixes for v5.3
- add compile_commands.json to .gitignore
 
  - fix false-positive warning from gen_compile_commands.py after
    allnoconfig build
 
  - remove unused code
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Merge tag 'kbuild-fixes-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:

 - add compile_commands.json to .gitignore

 - fix false-positive warning from gen_compile_commands.py after
   allnoconfig build

 - remove unused code

* tag 'kbuild-fixes-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kbuild: remove unused single-used-m
  gen_compile_commands: lower the entry count threshold
  .gitignore: Add compilation database file
  kbuild: remove unused objectify macro
2019-07-28 10:35:04 -07:00
Linus Torvalds
04ce931889 Char/Misc driver fixes for 5.3-rc2
Here are some small char and misc driver fixes for 5.3-rc2 to resolve
 some reported issues.
 
 Nothing major at all, some binder bugfixes for issues found, some new
 mei device ids, firmware building warning fixes, habanalabs fixes, a few
 other build fixes, and a MAINTAINERS update.
 
 All of these have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
 "Here are some small char and misc driver fixes for 5.3-rc2 to resolve
  some reported issues.

  Nothing major at all, some binder bugfixes for issues found, some new
  mei device ids, firmware building warning fixes, habanalabs fixes, a
  few other build fixes, and a MAINTAINERS update.

  All of these have been in linux-next with no reported issues"

* tag 'char-misc-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  test_firmware: fix a memory leak bug
  hpet: Fix division by zero in hpet_time_div()
  eeprom: make older eeprom drivers select NVMEM_SYSFS
  vmw_balloon: Remove Julien from the maintainers list
  fpga-manager: altera-ps-spi: Fix build error
  mei: me: add mule creek canyon (EHL) device ids
  binder: prevent transactions to context manager from its own process.
  binder: Set end of SG buffer area properly.
  firmware: Fix missing inline
  firmware: fix build errors in paged buffer handling code
  habanalabs: don't reset device when getting VRHOT
  habanalabs: use %pad for printing a dma_addr_t
2019-07-28 10:26:10 -07:00
Linus Torvalds
572782b213 TTY fixes for 5.3-rc2
Here are 2 tty/vt patches for 5.3-rc2
   - delete the netx-serial driver as the arch has been removed, no need
     to keep the serial driver for it around either.
   - vt console_lock fix to resolve a reported noisy warning at runtime
 
 Both of these have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty fixes from Greg KH:
 "Here are two tty/vt fixes:

   - delete the netx-serial driver as the arch has been removed, no need
     to keep the serial driver for it around either.

   - vt console_lock fix to resolve a reported noisy warning at runtime

  Both of these have been in linux-next with no reported issues"

* tag 'tty-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  vt: Grab console_lock around con_is_bound in show_bind
  tty: serial: netx: Delete driver
2019-07-28 10:18:33 -07:00
Linus Torvalds
ad28fd1cb2 SPDX fixes for 5.3-rc2
Here are some small SPDX fixes for 5.3-rc2 for things that came in
 during the 5.3-rc1 merge window that we previously missed.
 
 Only 3 small patches here:
 	- 2 uapi patches to resolve some SPDX tags that were not correct
 	- fix an invalid SPDX tag in the iomap Makefile file
 
 All have been properly reviewed on the public mailing lists.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'spdx-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx

Pull SPDX fixes from Greg KH:
 "Here are some small SPDX fixes for 5.3-rc2 for things that came in
  during the 5.3-rc1 merge window that we previously missed.

  Only three small patches here:

   - two uapi patches to resolve some SPDX tags that were not correct

   - fix an invalid SPDX tag in the iomap Makefile file

  All have been properly reviewed on the public mailing lists"

* tag 'spdx-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx:
  iomap: fix Invalid License ID
  treewide: remove SPDX "WITH Linux-syscall-note" from kernel-space headers again
  treewide: add "WITH Linux-syscall-note" to SPDX tag of uapi headers
2019-07-28 10:00:06 -07:00
Linus Torvalds
29af915cab USB fixes for 5.3-rc2
Here are some small fixes for 5.3-rc2.  All of these resolve some
 reported issues, some more than others :)
 
 Included in here is:
 	- xhci fix for an annoying issue with odd devices
 	- reversion of some usb251xb patches that should not have been
 	  merged
 	- usb pci quirk additions and fixups
 	- usb storage fix
 	- usb host controller error test fix
 
 All of these have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are some small fixes for 5.3-rc2. All of these resolve some
  reported issues, some more than others :)

  Included in here is:

   - xhci fix for an annoying issue with odd devices

   - reversion of some usb251xb patches that should not have been merged

   - usb pci quirk additions and fixups

   - usb storage fix

   - usb host controller error test fix

  All of these have been in linux-next with no reported issues"

* tag 'usb-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  xhci: Fix crash if scatter gather is used with Immediate Data Transfer (IDT).
  usb: usb251xb: Reallow swap-dx-lanes to apply to the upstream port
  Revert "usb: usb251xb: Add US port lanes inversion property"
  Revert "usb: usb251xb: Add US lanes inversion dts-bindings"
  usb: wusbcore: fix unbalanced get/put cluster_id
  usb/hcd: Fix a NULL vs IS_ERR() bug in usb_hcd_setup_local_mem()
  usb-storage: Add a limitation for blk_queue_max_hw_sectors()
  usb: pci-quirks: Minor cleanup for AMD PLL quirk
  usb: pci-quirks: Correct AMD PLL quirk detection
2019-07-28 09:52:35 -07:00
Linus Torvalds
5bb575bcc6 ARM: SoC fixes
Here's the first batch of fixes for this release cycle.
 
 Main diffstat here is the re-deletion of netx. I messed up and most
 likely didn't remove the files from the index when I test-merged this
 and saw conflicts, and from there on out 'git rerere' remembered the
 mistake and I missed checking it. Here it's done again as expected.
 
 Besides that:
 
  - A defconfig refresh + enabling of new drivers for u8500
 
  - i.MX fixlets for i2c/SAI/pinmux
 
  - sleep.S build fix for Davinci
 
  - Broadcom devicetree build/warning fix
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC fixes from Olof Johansson:
 "Here's the first batch of fixes for this release cycle.

  Main diffstat here is the re-deletion of netx. I messed up and most
  likely didn't remove the files from the index when I test-merged this
  and saw conflicts, and from there on out 'git rerere' remembered the
  mistake and I missed checking it. Here it's done again as expected.

  Besides that:

   - A defconfig refresh + enabling of new drivers for u8500

   - i.MX fixlets for i2c/SAI/pinmux

   - sleep.S build fix for Davinci

   - Broadcom devicetree build/warning fix"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  ARM: defconfig: u8500: Add new drivers
  ARM: defconfig: u8500: Refresh defconfig
  ARM: dts: bcm: bcm47094: add missing #cells for mdio-bus-mux
  ARM: davinci: fix sleep.S build error on ARMv4
  arm64: dts: imx8mq: fix SAI compatible
  arm64: dts: imx8mm: Correct SAI3 RXC/TXFS pin's mux option #1
  ARM: dts: imx6ul: fix clock frequency property name of I2C buses
  ARM: Delete netx a second time
  ARM: dts: imx7ulp: Fix usb-phy unit address format
2019-07-28 09:38:55 -07:00
Linus Torvalds
a9815a4fa2 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
 "A set of x86 fixes and functional updates:

   - Prevent stale huge I/O TLB mappings on 32bit. A long standing bug
     which got exposed by KPTI support for 32bit

   - Prevent bogus access_ok() warnings in arch_stack_walk_user()

   - Add display quirks for Lenovo devices which have height and width
     swapped

   - Add the missing CR2 fixup for 32 bit async pagefaults. Fallout of
     the CR2 bug fix series.

   - Unbreak handling of force enabled HPET by moving the 'is HPET
     counting' check back to the original place.

   - A more accurate check for running on a hypervisor platform in the
     MDS mitigation code. Not perfect, but more accurate than the
     previous one.

   - Update a stale and confusing comment vs. IRQ stacks"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/speculation/mds: Apply more accurate check on hypervisor platform
  x86/hpet: Undo the early counter is counting check
  x86/entry/32: Pass cr2 to do_async_page_fault()
  x86/irq/64: Update stale comment
  x86/sysfb_efi: Add quirks for some devices with swapped width and height
  x86/stacktrace: Prevent access_ok() warnings in arch_stack_walk_user()
  mm/vmalloc: Sync unmappings in __purge_vmap_area_lazy()
  x86/mm: Sync also unmappings in vmalloc_sync_all()
  x86/mm: Check for pfn instead of page in vmalloc_sync_one()
2019-07-27 21:46:43 -07:00
Linus Torvalds
e24ce84e85 Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Thomas Gleixner:
 "Two fixes for the fair scheduling class:

   - Prevent freeing memory which is accessible by concurrent readers

   - Make the RCU annotations for numa groups consistent"

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/fair: Use RCU accessors consistently for ->numa_group
  sched/fair: Don't free p->numa_faults with concurrent readers
2019-07-27 21:22:33 -07:00
Linus Torvalds
750991f9af Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Thomas Gleixner:
 "A pile of perf related fixes:

  Kernel:
   - Fix SLOTS PEBS event constraints for Icelake CPUs

   - Add the missing mask bit to allow counting hardware generated
     prefetches on L3 for Icelake CPUs

   - Make the test for hypervisor platforms more accurate (as far as
     possible)

   - Handle PMUs correctly which override event->cpu

   - Yet another missing fallthrough annotation

  Tools:
     perf.data:
        - Fix loading of compressed data split across adjacent records
        - Fix buffer size setting for processing CPU topology perf.data
          header.

     perf stat:
        - Fix segfault for event group in repeat mode
        - Always separate "stalled cycles per insn" line, it was being
          appended to the "instructions" line.

     perf script:
        - Fix --max-blocks man page description.
        - Improve man page description of metrics.
        - Fix off by one in brstackinsn IPC computation.

     perf probe:
        - Avoid calling freeing routine multiple times for same pointer.

     perf build:
        - Do not use -Wshadow on gcc < 4.8, avoiding too strict warnings
          treated as errors, breaking the build"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/intel: Mark expected switch fall-throughs
  perf/core: Fix creating kernel counters for PMUs that override event->cpu
  perf/x86: Apply more accurate check on hypervisor platform
  perf/x86/intel: Fix invalid Bit 13 for Icelake MSR_OFFCORE_RSP_x register
  perf/x86/intel: Fix SLOTS PEBS event constraint
  perf build: Do not use -Wshadow on gcc < 4.8
  perf probe: Avoid calling freeing routine multiple times for same pointer
  perf probe: Set pev->nargs to zero after freeing pev->args entries
  perf session: Fix loading of compressed data split across adjacent records
  perf stat: Always separate stalled cycles per insn
  perf stat: Fix segfault for event group in repeat mode
  perf tools: Fix proper buffer size for feature processing
  perf script: Fix off by one in brstackinsn IPC computation
  perf script: Improve man page description of metrics
  perf script: Fix --max-blocks man page description
2019-07-27 21:17:56 -07:00
Linus Torvalds
431f288ed7 Merge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking fixes from Thomas Gleixner:
 "A set of locking fixes:

   - Address the fallout of the rwsem rework. Missing ACQUIREs and a
     sanity check to prevent a use-after-free

   - Add missing checks for unitialized mutexes when mutex debugging is
     enabled.

   - Remove the bogus code in the generic SMP variant of
     arch_futex_atomic_op_inuser()

   - Fixup the #ifdeffery in lockdep to prevent compile warnings"

* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  locking/mutex: Test for initialized mutex
  locking/lockdep: Clean up #ifdef checks
  locking/lockdep: Hide unused 'class' variable
  locking/rwsem: Add ACQUIRE comments
  tty/ldsem, locking/rwsem: Add missing ACQUIRE to read_failed sleep loop
  lcoking/rwsem: Add missing ACQUIRE to read_slowpath sleep loop
  locking/rwsem: Add missing ACQUIRE to read_slowpath exit when queue is empty
  locking/rwsem: Don't call owner_on_cpu() on read-owner
  futex: Cleanup generic SMP variant of arch_futex_atomic_op_inuser()
2019-07-27 21:10:26 -07:00
Linus Torvalds
13fbe991b5 Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool fix from Thomas Gleixner:
 "A single robustness fix for objtool to handle unbalanced CLAC
  invocations under all circumstances"

* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  objtool: Improve UACCESS coverage
2019-07-27 20:49:43 -07:00
Linus Torvalds
88c5083442 Wimplicit-fallthrough patches for 5.3-rc2
Hi Linus,
 
 Please, pull the following patches that mark switch cases where we are
 expecting to fall through. These patches are part of the ongoing efforts
 to enable -Wimplicit-fallthrough. Most of them have been baking in linux-next
 for a whole development cycle.
 
 Also, pull the Makefile patch that globally enables the
 -Wimplicit-fallthrough option.
 
 Finally, some missing-break fixes that have been tagged for -stable:
 
  - drm/amdkfd: Fix missing break in switch statement
  - drm/amdgpu/gfx10: Fix missing break in switch statement
 
 Notice that with these changes, we completely get rid of all the
 fall-through warnings in the kernel.
 
 Thanks
 
 Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
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Merge tag 'Wimplicit-fallthrough-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux

Pull Wimplicit-fallthrough enablement from Gustavo A. R. Silva:
 "This marks switch cases where we are expecting to fall through, and
  globally enables the -Wimplicit-fallthrough option in the main
  Makefile.

  Finally, some missing-break fixes that have been tagged for -stable:

   - drm/amdkfd: Fix missing break in switch statement

   - drm/amdgpu/gfx10: Fix missing break in switch statement

  With these changes, we completely get rid of all the fall-through
  warnings in the kernel"

* tag 'Wimplicit-fallthrough-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux:
  Makefile: Globally enable fall-through warning
  drm/i915: Mark expected switch fall-throughs
  drm/amd/display: Mark expected switch fall-throughs
  drm/amdkfd/kfd_mqd_manager_v10: Avoid fall-through warning
  drm/amdgpu/gfx10: Fix missing break in switch statement
  drm/amdkfd: Fix missing break in switch statement
  perf/x86/intel: Mark expected switch fall-throughs
  mtd: onenand_base: Mark expected switch fall-through
  afs: fsclient: Mark expected switch fall-throughs
  afs: yfsclient: Mark expected switch fall-throughs
  can: mark expected switch fall-throughs
  firewire: mark expected switch fall-throughs
2019-07-27 11:04:18 -07:00
Linus Torvalds
43e317c1bb s390 updates for 5.3-rc2
- Add ABI to kernel image file which allows e.g. the file utility to figure
    out the kernel version.
 
  - Wire up clone3 system call.
 
  - Add support for kasan bitops instrumentation.
 
  - uapi header cleanup: use __u{16,32,64} instead of uint{16,32,64}_t.
 
  - Provide proper ARCH_ZONE_DMA_BITS so the s390 DMA zone is correctly defined
    with 2 GB instead of the default value of 1 MB.
 
  - Farhan Ali leaves the group of vfio-ccw maintainers.
 
  - Various small vfio-ccw fixes.
 
  - Add missing locking for airq_areas array in virtio code.
 
  - Minor qdio improvements.
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Merge tag 's390-5.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Heiko Carstens:

 - Add ABI to kernel image file which allows e.g. the file utility to
   figure out the kernel version.

 - Wire up clone3 system call.

 - Add support for kasan bitops instrumentation.

 - uapi header cleanup: use __u{16,32,64} instead of uint{16,32,64}_t.

 - Provide proper ARCH_ZONE_DMA_BITS so the s390 DMA zone is correctly
   defined with 2 GB instead of the default value of 1 MB.

 - Farhan Ali leaves the group of vfio-ccw maintainers.

 - Various small vfio-ccw fixes.

 - Add missing locking for airq_areas array in virtio code.

 - Minor qdio improvements.

* tag 's390-5.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  MAINTAINERS: vfio-ccw: Remove myself as the maintainer
  s390/mm: use shared variables for sysctl range check
  virtio/s390: fix race on airq_areas[]
  s390/dma: provide proper ARCH_ZONE_DMA_BITS value
  s390/kasan: add bitops instrumentation
  s390/bitops: make test functions return bool
  s390: wire up clone3 system call
  kbuild: enable arch/s390/include/uapi/asm/zcrypt.h for uapi header test
  s390: use __u{16,32,64} instead of uint{16,32,64}_t in uapi header
  s390/hypfs: fix a typo in the name of a function
  s390/qdio: restrict QAOB usage to IQD unicast queues
  s390/qdio: add sanity checks to the fast-requeue path
  s390: enable detection of kernel version from bzImage
  Documentation: fix vfio-ccw doc
  vfio-ccw: Update documentation for csch/hsch
  vfio-ccw: Don't call cp_free if we are processing a channel program
  vfio-ccw: Set pa_nr to 0 if memory allocation fails for pa_iova_pfn
  vfio-ccw: Fix memory leak and don't call cp_free in cp_init
  vfio-ccw: Fix misleading comment when setting orb.cmd.c64
2019-07-27 08:58:04 -07:00
Linus Torvalds
5efbd93708 Devicetree fixes for 5.3-rc:
- Fix mismatches in $id values and actual filenames. Now checked by
   tools.
 
 - Convert nvmem binding to DT schema
 
 - Fix a typo in of_property_read_bool() kerneldoc
 
 - Remove some redundant description in al-fic interrupt-controller
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Merge tag 'devicetree-fixes-for-5.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull Devicetree fixes from Rob Herring:
 "The nvmem changes would typically go thru Greg's tree, but they were
  missed in the merge window. [ Acked by Greg ]

  Summary:

   - Fix mismatches in $id values and actual filenames. Now checked by
     tools.

   - Convert nvmem binding to DT schema

   - Fix a typo in of_property_read_bool() kerneldoc

   - Remove some redundant description in al-fic interrupt-controller"

* tag 'devicetree-fixes-for-5.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  dt-bindings: Fix more $id value mismatches filenames
  dt-bindings: nvmem: SID: Fix the examples node names
  dt-bindings: nvmem: Add YAML schemas for the generic NVMEM bindings
  of: Fix typo in kerneldoc
  dt-bindings: interrupt-controller: al-fic: remove redundant binding
  dt-bindings: clk: allwinner,sun4i-a10-ccu: Correct path in $id
2019-07-27 08:49:19 -07:00
Linus Torvalds
523634db14 libnvdimm fixes v5.3-rc2
- Fix duplicate device_unregister() calls (multiple threads competing to
   do unregister work when scheduling device removal from a sysfs attribute
   of the self-same device).
 
 - Fix badblocks registration order bug. Ensure region badblocks are
   initialized in advance of namespace registration.
 
 - Fix a deadlock between the bus lock and probe operations.
 
 - Export device-core infrastructure to coordinate async operations via
   the device ->dead state.
 
 - Add device-core infrastructure to validate device_lock() usage with
   lockdep.
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Merge tag 'libnvdimm-fixes-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

Pull libnvdimm fixes from Dan Williams:
 "A collection of locking and async operations fixes for v5.3-rc2. These
  had been soaking in a branch targeting the merge window, but missed
  due to a regression hunt. This fixed up version has otherwise been in
  -next this past week with no reported issues.

  In order to gain confidence in the locking changes the pull also
  includes a debug / instrumentation patch to enable lockdep coverage
  for libnvdimm subsystem operations that depend on the device_lock for
  exclusion. As mentioned in the changelog it is a hack, but it works
  and documents the locking expectations of the sub-system in a way that
  others can use lockdep to verify. The driver core touches got an ack
  from Greg.

  Summary:

   - Fix duplicate device_unregister() calls (multiple threads competing
     to do unregister work when scheduling device removal from a sysfs
     attribute of the self-same device).

   - Fix badblocks registration order bug. Ensure region badblocks are
     initialized in advance of namespace registration.

   - Fix a deadlock between the bus lock and probe operations.

   - Export device-core infrastructure to coordinate async operations
     via the device ->dead state.

   - Add device-core infrastructure to validate device_lock() usage with
     lockdep"

* tag 'libnvdimm-fixes-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  driver-core, libnvdimm: Let device subsystems add local lockdep coverage
  libnvdimm/bus: Fix wait_nvdimm_bus_probe_idle() ABBA deadlock
  libnvdimm/bus: Stop holding nvdimm_bus_list_mutex over __nd_ioctl()
  libnvdimm/bus: Prepare the nd_ioctl() path to be re-entrant
  libnvdimm/region: Register badblocks before namespaces
  libnvdimm/bus: Prevent duplicate device_unregister() calls
  drivers/base: Introduce kill_device()
2019-07-27 08:25:51 -07:00
Masahiro Yamada
b25e8a23d4 kbuild: remove unused single-used-m
This is unused since commit 9f69a496f1 ("kbuild: split out *.mod out
of {single,multi}-used-m rules").

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-07-27 12:18:19 +09:00
Masahiro Yamada
cb36955a55 gen_compile_commands: lower the entry count threshold
Running gen_compile_commands.py after building the kernel with
allnoconfig gave this:

$ ./scripts/gen_compile_commands.py
WARNING: Found 449 entries. Have you compiled the kernel?

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-07-27 12:18:19 +09:00
Toru Komatsu
26c4c71bcd .gitignore: Add compilation database file
This file is used by clangd to use language server protocol.
It can be generated at each compile using scripts/gen_compile_commands.py.
Therefore it is different depending on the environment and should be
ignored.

Signed-off-by: Toru Komatsu <k0ma@utam0k.jp>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-07-27 12:18:19 +09:00
Masahiro Yamada
b2eff09218 kbuild: remove unused objectify macro
Commit 415008af32 ("docs-rst: convert lsm from DocBook to ReST")
removed the last users of this macro.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-07-27 12:18:19 +09:00
Linus Torvalds
5168afe6ef for-linus-20190726-2
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Merge tag 'for-linus-20190726-2' of git://git.kernel.dk/linux-block

Pull block DMA segment fix from Jens Axboe:
 "Here's the virtual boundary segment size fix"

* tag 'for-linus-20190726-2' of git://git.kernel.dk/linux-block:
  block: fix max segment size handling in blk_queue_virt_boundary
2019-07-26 19:20:34 -07:00
Linus Torvalds
40233e7c44 selinux/stable-5.3 PR 20190726
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Merge tag 'selinux-pr-20190726' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux

Pull selinux fix from Paul Moore:
 "One small SELinux patch to add some proper bounds/overflow checking
  when adding a new sid/secid"

* tag 'selinux-pr-20190726' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
  selinux: check sidtab limit before adding a new entry
2019-07-26 19:13:38 -07:00
Rob Herring
e1ff7390f5 dt-bindings: Fix more $id value mismatches filenames
The path in the schema '$id' values are wrong. Fix them.

Signed-off-by: Rob Herring <robh@kernel.org>
2019-07-26 17:41:41 -06:00
Maxime Ripard
ce842e73bc dt-bindings: nvmem: SID: Fix the examples node names
Now that the examples are validated, the examples in the SID binding
generates an error since the node names aren't one of the valid ones.

Let's switch for one that is ok.

Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-07-26 17:40:40 -06:00
Maxime Ripard
c61f025696 dt-bindings: nvmem: Add YAML schemas for the generic NVMEM bindings
The nvmem providers and consumers have a bunch of generic properties that
are needed in a device tree. Add a YAML schemas for those.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
[Srini: Changed licence to (GPL-2.0 OR BSD-2-Clause)]
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-07-26 17:05:14 -06:00
Thierry Reding
f1765a1819 of: Fix typo in kerneldoc
"Findfrom" is not a word. Replace the function synopsis by something
that makes sense.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-07-26 17:01:29 -06:00
Linus Torvalds
a689838913 SCSI fixes on 20190726
Nine fixes: The most important core one is the dma_max_mapping_size
 fix that corrects the boot problem Gunter Roeck was having.  A couple
 of other driver only fixes are significant, like the cxgbi selector
 support addition, the alua 2 second delay and the fdomain build fix.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Nine fixes: The most important core one is the dma_max_mapping_size
  fix that corrects the boot problem Gunter Roeck was having. A couple
  of other driver only fixes are significant, like the cxgbi selector
  support addition, the alua 2 second delay and the fdomain build fix"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: scsi_dh_alua: always use a 2 second delay before retrying RTPG
  scsi: ibmvfc: fix WARN_ON during event pool release
  scsi: fcoe: fix a typo
  scsi: megaraid_sas: Make some functions static
  scsi: megaraid_sas: fix panic on loading firmware crashdump
  scsi: megaraid_sas: fix spelling mistake "megarid_sas" -> "megaraid_sas"
  scsi: core: fix the dma_max_mapping_size call
  scsi: fdomain: fix building pcmcia front-end
  scsi: target: cxgbit: add support for IEEE_8021QAZ_APP_SEL_STREAM selector
2019-07-26 14:20:28 -07:00
Linus Torvalds
e2921f9f95 drm-fixes for 5.3-rc2:
amdgpu:
 - fixes for (new in 5.3) hw support (vega20, navi)
 - disable RAS
 - lots of display fixes all over (audio, DSC, dongle, clock mgr)
 
 ttm:
 - fix dma_free_attrs calls to appease dma debugging
 
 msm:
 - fixes for dma-api, locking debug and compiler splats
 
 core:
 - fix cmdline mode to not apply rotation if not specified (new in 5.3)
 - compiler warn fix
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Merge tag 'drm-fixes-2019-07-26' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Daniel Vetter:
 "Dave seems to collect an entire streak of things happening, so again
  me typing pull summary.

  Nothing nefarious here, most of the fixes are for new stuff or things
  users won't see. The amd-display patches are a bit different, and very
  much look like they should have at least some cc: stable tags. Might
  be amd is a bit too comfortable with their internal tree and not
  enough looking at upstream. Dave&me are looking into this, in case
  something needs rectified with process here.

  Also no intel fixes pull, but intel CI is general become rather good,
  still I guess expect a notch more for -rc3.

  Summary:

  amdgpu:
   - fixes for (new in 5.3) hw support (vega20, navi)
   - disable RAS
   - lots of display fixes all over (audio, DSC, dongle, clock mgr)

  ttm:
   - fix dma_free_attrs calls to appease dma debugging

  msm:
   - fixes for dma-api, locking debug and compiler splats

  core:
   - fix cmdline mode to not apply rotation if not specified (new in 5.3)
   - compiler warn fix"

* tag 'drm-fixes-2019-07-26' of git://anongit.freedesktop.org/drm/drm: (46 commits)
  drm/amd/display: Set enabled to false at start of audio disable
  drm/amdgpu/smu: move fan rpm query into the asic specific code
  drm/amd/powerplay: custom peak clock freq for navi10
  drm: silence variable 'conn' set but not used
  drm/msm: stop abusing dma_map/unmap for cache
  drm/msm/dpu: Correct dpu encoder spinlock initialization
  drm/msm: correct NULL pointer dereference in context_init
  drm/amd/display: handle active dongle port type is DP++ or DP case
  drm/amd/display: do not read link setting if edp not connected
  drm/amd/display: Increase size of audios array
  drm/amd/display: drop ASSERT() if eDP panel is not connected
  drm/amd/display: Only enable audio if speaker allocation exists
  drm/amd/display: Fix dc_create failure handling and 666 color depths
  drm/amd/display: allocate 4 ddc engines for RV2
  drm/amd/display: put back front end initialization sequence
  drm/amd/display: Wait for flip to complete
  drm/amd/display: Change min_h_sync_width from 8 to 4
  drm/amd/display: use encoder's engine id to find matched free audio device
  drm/amd/display: fix DMCU hang when going into Modern Standby
  drm/amd/display: Disable Audio on reinitialize hardware
  ...
2019-07-26 14:12:54 -07:00
Christoph Hellwig
c6c84f78e2 block: fix max segment size handling in blk_queue_virt_boundary
We should only set the max segment size to unlimited if we actually
have a virt boundary.  Otherwise we accidentally clear that limit
when called from the SCSI midlayer, which always calls
blk_queue_virt_boundary, even if that mask is 0.

Fixes: 7ad388d8e4 ("scsi: core: add a host / host template field for the virt boundary")
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-07-26 12:50:57 -06:00
Linus Torvalds
3ea54d9b0d This is mostly a set of follow-on fixes from Mauro fixing various fallout
from the massive RST conversion; a few other small fixes as well.
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Merge tag 'docs-5.3-1' of git://git.lwn.net/linux

Pull documentation fixes from Jonathan Corbet:
 "This is mostly a set of follow-on fixes from Mauro fixing various
  fallout from the massive RST conversion; a few other small fixes as
  well"

* tag 'docs-5.3-1' of git://git.lwn.net/linux: (21 commits)
  docs: phy: Drop duplicate 'be made'
  doc:it_IT: translations in process/
  docs/vm: transhuge: fix typo in madvise reference
  doc:it_IT: rephrase statement
  doc:it_IT: align translation to mainline
  docs: load_config.py: ensure subdirs end with "/"
  docs: virtual: add it to the documentation body
  docs: remove extra conf.py files
  docs: load_config.py: avoid needing a conf.py just due to LaTeX docs
  scripts/sphinx-pre-install: seek for Noto CJK fonts for pdf output
  scripts/sphinx-pre-install: cleanup Gentoo checks
  scripts/sphinx-pre-install: fix latexmk dependencies
  scripts/sphinx-pre-install: don't use LaTeX with CentOS 7
  scripts/sphinx-pre-install: fix script for RHEL/CentOS
  docs: conf.py: only use CJK if the font is available
  docs: conf.py: add CJK package needed by translations
  docs: pdf: add all Documentation/*/index.rst to PDF output
  docs: fix broken doc references due to renames
  docs: power: add it to to the main documentation index
  docs: powerpc: convert docs to ReST and rename to *.rst
  ...
2019-07-26 11:29:24 -07:00
Linus Torvalds
0ed2886656 arm64 fixes for -rc2
- Big bad batch of MAINTAINERS updates
 
 - Fix handling of SP alignment fault exceptions
 
 - Fix PSTATE.SSBS handling on heterogeneous systems
 
 - Fix fallout from moving to the generic vDSO implementation
 
 - Fix stack unwinding in the face of frame corruption
 
 - Fix off-by-one in IORT code
 
 - Minor SVE cleanups
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "There's more here than we usually have at this stage, but that's
  mainly down to the stacktrace changes which came in slightly too late
  for the merge window.

  Summary:

   - Big bad batch of MAINTAINERS updates

   - Fix handling of SP alignment fault exceptions

   - Fix PSTATE.SSBS handling on heterogeneous systems

   - Fix fallout from moving to the generic vDSO implementation

   - Fix stack unwinding in the face of frame corruption

   - Fix off-by-one in IORT code

   - Minor SVE cleanups"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  ACPI/IORT: Fix off-by-one check in iort_dev_find_its_id()
  arm64: entry: SP Alignment Fault doesn't write to FAR_EL1
  arm64: Force SSBS on context switch
  MAINTAINERS: Update my email address
  MAINTAINERS: Update my email address
  MAINTAINERS: Fix spelling mistake in my name
  MAINTAINERS: Update my email address to @kernel.org
  arm64: mm: Drop pte_huge()
  arm64/sve: Fix a couple of magic numbers for the Z-reg count
  arm64/sve: Factor out FPSIMD to SVE state conversion
  arm64: stacktrace: Better handle corrupted stacks
  arm64: stacktrace: Factor out backtrace initialisation
  arm64: stacktrace: Constify stacktrace.h functions
  arm64: vdso: Cleanup Makefiles
  arm64: vdso: fix flip/flop vdso build bug
  arm64: vdso: Fix population of AT_SYSINFO_EHDR for compat vdso
2019-07-26 11:20:42 -07:00
Linus Torvalds
4792ba1f1f for-5.3-rc1-tag
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Merge tag 'for-5.3-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:
 "Two regression fixes:

   - hangs caused by a missing barrier in the locking code

   - memory leaks of extent_state due to bad handling of a cached
     pointer"

* tag 'for-5.3-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: fix extent_state leak in btrfs_lock_and_flush_ordered_range
  btrfs: Fix deadlock caused by missing memory barrier
2019-07-26 11:08:37 -07:00
Linus Torvalds
863fa8887b Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs umount_tree() leak fix from Al Viro:
 "Fix braino introduced in 'switch the remnants of releasing the
  mountpoint away from fs_pin'.

  The most visible result is leaking struct mount when mounting btrfs,
  making it impossible to shut down"

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  fix the struct mount leak in umount_tree()
2019-07-26 10:58:44 -07:00
Linus Torvalds
0441281965 for-linus-20190726
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Merge tag 'for-linus-20190726' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:

 - Several io_uring fixes/improvements:
     - Blocking fix for O_DIRECT (me)
     - Latter page slowness for registered buffers (me)
     - Fix poll hang under certain conditions (me)
     - Defer sequence check fix for wrapped rings (Zhengyuan)
     - Mismatch in async inc/dec accounting (Zhengyuan)
     - Memory ordering issue that could cause stall (Zhengyuan)
      - Track sequential defer in bytes, not pages (Zhengyuan)

 - NVMe pull request from Christoph

 - Set of hang fixes for wbt (Josef)

 - Redundant error message kill for libahci (Ding)

 - Remove unused blk_mq_sched_started_request() and related ops (Marcos)

 - drbd dynamic alloc shash descriptor to reduce stack use (Arnd)

 - blkcg ->pd_stat() non-debug print (Tejun)

 - bcache memory leak fix (Wei)

 - Comment fix (Akinobu)

 - BFQ perf regression fix (Paolo)

* tag 'for-linus-20190726' of git://git.kernel.dk/linux-block: (24 commits)
  io_uring: ensure ->list is initialized for poll commands
  Revert "nvme-pci: don't create a read hctx mapping without read queues"
  nvme: fix multipath crash when ANA is deactivated
  nvme: fix memory leak caused by incorrect subsystem free
  nvme: ignore subnqn for ADATA SX6000LNP
  drbd: dynamically allocate shash descriptor
  block: blk-mq: Remove blk_mq_sched_started_request and started_request
  bcache: fix possible memory leak in bch_cached_dev_run()
  io_uring: track io length in async_list based on bytes
  io_uring: don't use iov_iter_advance() for fixed buffers
  block: properly handle IOCB_NOWAIT for async O_DIRECT IO
  blk-mq: allow REQ_NOWAIT to return an error inline
  io_uring: add a memory barrier before atomic_read
  rq-qos: use a mb for got_token
  rq-qos: set ourself TASK_UNINTERRUPTIBLE after we schedule
  rq-qos: don't reset has_sleepers on spurious wakeups
  rq-qos: fix missed wake-ups in rq_qos_throttle
  wait: add wq_has_single_sleeper helper
  block, bfq: check also in-flight I/O in dispatch plugging
  block: fix sysfs module parameters directory path in comment
  ...
2019-07-26 10:32:12 -07:00
Linus Torvalds
750c930b08 sound fixes for 5.3-rc2
All relative small changes.
 
 - A regression fix for PCM link code with CONFIG_REFCOUNT_FULL;
   stumbled on a slight difference between atomic_t and refcount_t
 
 - A couple of HD-audio stabilization patches addressing the too
   slow PM resume seen on some Intel chips
 
 - A series of ALSA compress-offload API fixes, including the
   regression by the previous capture stream support
 
 - Trivial LINE6 USB-audio driver fixes, a new Conexant HD-audio
   chip coverage, and a fix in AC97 bus error path
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Merge tag 'sound-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "All relatively small changes:

   - a regression fix for PCM link code with CONFIG_REFCOUNT_FULL;
     stumbled on a slight difference between atomic_t and refcount_t

   - a couple of HD-audio stabilization patches addressing the too slow
     PM resume seen on some Intel chips

   - a series of ALSA compress-offload API fixes, including the
     regression by the previous capture stream support

   - trivial LINE6 USB-audio driver fixes, a new Conexant HD-audio chip
     coverage, and a fix in AC97 bus error path"

* tag 'sound-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda - Add a conexant codec entry to let mute led work
  ALSA: hda - Fix intermittent CORB/RIRB stall on Intel chips
  ALSA: ac97: Fix double free of ac97_codec_device
  ALSA: compress: Be more restrictive about when a drain is allowed
  ALSA: compress: Don't allow paritial drain operations on capture streams
  ALSA: compress: Prevent bypasses of set_params
  ALSA: compress: Fix regression on compressed capture streams
  ALSA: line6: Fix a typo
  ALSA: pcm: Fix refcount_inc() on zero usage
  ALSA: line6: Fix wrong altsetting for LINE6_PODHD500_1
  ALSA: hda - Optimize resume for codecs without jack detection
2019-07-26 10:23:45 -07:00
Linus Torvalds
b381c016c5 IOMMU Fixes for Linux v5.3-rc1
Including:
 
 	- Revert an Intel VT-d patch that caused boot problems on some
 	  machines
 
 	- Fix AMD IOMMU interrupts with x2apic enabled
 
 	- Fix a potential crash when Intel VT-d domain allocation fails
 
 	- Fix crash in Intel VT-d driver when accessing a domain without
 	  a flush queue
 
 	- Formatting fix for new Intel VT-d debugfs code
 
 	- Fix for use-after-free bug in IOVA code
 
 	- Fix for a NULL-pointer dereference in Intel VT-d driver when
 	  PCI hotplug is used
 
 	- Compilation fix for one of the previous fixes
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Merge tag 'iommu-fixes-v5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull IOMMU fixes from Joerg Roedel:

 - revert an Intel VT-d patch that caused boot problems on some machines

 - fix AMD IOMMU interrupts with x2apic enabled

 - fix a potential crash when Intel VT-d domain allocation fails

 - fix crash in Intel VT-d driver when accessing a domain without a
   flush queue

 - formatting fix for new Intel VT-d debugfs code

 - fix for use-after-free bug in IOVA code

 - fix for a NULL-pointer dereference in Intel VT-d driver when PCI
   hotplug is used

 - compilation fix for one of the previous fixes

* tag 'iommu-fixes-v5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/amd: Add support for X2APIC IOMMU interrupts
  iommu/iova: Fix compilation error with !CONFIG_IOMMU_IOVA
  iommu/vt-d: Print pasid table entries MSB to LSB in debugfs
  iommu/iova: Remove stale cached32_node
  iommu/vt-d: Check if domain->pgd was allocated
  iommu/vt-d: Don't queue_iova() if there is no flush queue
  iommu/vt-d: Avoid duplicated pci dma alias consideration
  Revert "iommu/vt-d: Consolidate domain_init() to avoid duplication"
2019-07-26 10:04:19 -07:00
Linus Torvalds
55d31aaec0 Merge branch 'for-linus-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft
Pull iscsi_ibft fix from Konrad Rzeszutek Wilk:
 "One tiny fix to enable iSCSI IBFT to be compiled under ARM"

* 'for-linus-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft:
  iscsi_ibft: make ISCSI_IBFT depend on ACPI instead of ISCSI_IBFT_FIND
2019-07-26 09:43:43 -07:00
Linus Torvalds
6108cd475c Couple of hwmon bug fixes
Update k8temp documentation URL
 Register address fixes in nct6775 driver
 Fix potential division by zero in occ driver
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Merge tag 'hwmon-for-v5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:
 "A couple of hwmon bug fixes:

   - Update k8temp documentation URL

   - Register address fixes in nct6775 driver

   - Fix potential division by zero in occ driver"

* tag 'hwmon-for-v5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (k8temp) documentation: update URL of datasheet
  hwmon: (nct6775) Fix register address and added missed tolerance for nct6106
  hwmon: (occ) Fix division by zero issue
2019-07-26 09:36:01 -07:00
Guido Günther
d2eba640a4 docs: phy: Drop duplicate 'be made'
Fix duplicate words.

Signed-off-by: Guido Günther <agx@sigxcpu.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-26 08:15:26 -06:00
Al Viro
19a1c4092e fix the struct mount leak in umount_tree()
We need to drop everything we remove from the tree, whether
mnt_has_parent() is true or not.  Usually the bug manifests as a slow
memory leak (leaked struct mount for initramfs); it becomes much more
visible in mount_subtree() users, such as btrfs.  There we leak
a struct mount for btrfs superblock being mounted, which prevents
fs shutdown on subsequent umount.

Fixes: 56cbb429d9 ("switch the remnants of releasing the mountpoint away from fs_pin")
Reported-by: Nikolay Borisov <nborisov@suse.com>
Tested-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2019-07-26 07:59:06 -04:00