Commit Graph

886867 Commits

Author SHA1 Message Date
Linus Torvalds b22bfea7f1 Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq updates from Ingo Molnar:
 "Most of the IRQ subsystem changes in this cycle were irq-chip driver
  updates:

   - Qualcomm PDC wakeup interrupt support

   - Layerscape external IRQ support

   - Broadcom bcm7038 PM and wakeup support

   - Ingenic driver cleanup and modernization

   - GICv3 ITS preparation for GICv4.1 updates

   - GICv4 fixes

  There's also the series from Frederic Weisbecker that fixes memory
  ordering bugs for the irq-work logic, whose primary fix is to turn
  work->irq_work.flags into an atomic variable and then convert the
  complex (and buggy) atomic_cmpxchg() loop in irq_work_claim() into a
  much simpler atomic_fetch_or() call.

  There are also various smaller cleanups"

* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (44 commits)
  pinctrl/sdm845: Add PDC wakeup interrupt map for GPIOs
  pinctrl/msm: Setup GPIO chip in hierarchy
  irqchip/qcom-pdc: Add irqchip set/get state calls
  irqchip/qcom-pdc: Add irqdomain for wakeup capable GPIOs
  irqchip/qcom-pdc: Do not toggle IRQ_ENABLE during mask/unmask
  irqchip/qcom-pdc: Update max PDC interrupts
  of/irq: Document properties for wakeup interrupt parent
  genirq: Introduce irq_chip_get/set_parent_state calls
  irqdomain: Add bus token DOMAIN_BUS_WAKEUP
  genirq: Fix function documentation of __irq_alloc_descs()
  irq_work: Fix IRQ_WORK_BUSY bit clearing
  irqchip/ti-sci-inta: Use ERR_CAST inlined function instead of ERR_PTR(PTR_ERR(...))
  irq_work: Slightly simplify IRQ_WORK_PENDING clearing
  irq_work: Fix irq_work_claim() memory ordering
  irq_work: Convert flags to atomic_t
  irqchip: Ingenic: Add process for more than one irq at the same time.
  irqchip: ingenic: Alloc generic chips from IRQ domain
  irqchip: ingenic: Get virq number from IRQ domain
  irqchip: ingenic: Error out if IRQ domain creation failed
  irqchip: ingenic: Drop redundant irq_suspend / irq_resume functions
  ...
2019-12-03 09:29:50 -08:00
Linus Torvalds 2dff2a1c9b Merge branch 'dmi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
Pull dmi updates from Jean Delvare.

* 'dmi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  firmware: dmi: Add dmi_memdev_handle
  firmware: dmi: Remember the memory type
2019-12-03 09:27:29 -08:00
Christoph Hellwig 6c6b354914 block: set the zone size in blk_revalidate_disk_zones atomically
The current zone revalidation code has a major problem in that it
doesn't update the zone size and q->nr_zones atomically, leading
to a short window where an out of bounds access to the zone arrays
is possible.

To fix this move the setting of the zone size into the crticial
sections blk_revalidate_disk_zones so that it gets updated together
with the zone bitmaps and q->nr_zones.  This also slightly simplifies
the caller as it deducts the zone size from the report_zones.

This change also allows to check for a power of two zone size in generic
code.

Reported-by: Hans Holmberg <hans@owltronix.com>
Reviewed-by: Javier González <javier@javigon.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-12-03 10:18:22 -07:00
Monk Liu 4905880b45 drm/amdgpu: fix GFX10 missing CSIB set(v3)
still need to init csb even for SRIOV

v2:
drop init_pg() for gfx10 at all since
PG and GFX off feature will be fully controled
by RLC and SMU fw for gfx10

v3:
drop the flush_gpu_tlb lines since we consider
it is only usefull in emulation

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-12-03 11:58:08 -05:00
Monk Liu cd05b51aaa drm/amdgpu: should stop GFX ring in hw_fini
To align with the scheme from gfx9

disabling GFX ring after VM shutdown could avoid
garbage data be fetched to GFX RB which may lead
to unnecessary screw up on GFX

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-12-03 11:57:54 -05:00
Monk Liu dacf56e45d drm/amdgpu: do autoload right after MEC loaded for SRIOV VF
since we don't have RLCG ucode loading and no SRlist as well

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-12-03 11:57:39 -05:00
Monk Liu 6294017fe3 drm/amdgpu: skip rlc ucode loading for SRIOV gfx10
Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-12-03 11:57:17 -05:00
Monk Liu 747d4f715f drm/amdgpu: fix calltrace during kmd unload(v3)
issue:
kernel would report a warning from a double unpin
during the driver unloading on the CSB bo

why:
we unpin it during hw_fini, and there will be another
unpin in sw_fini on CSB bo.

fix:
actually we don't need to pin/unpin it during
hw_init/fini since it is created with kernel pinned,
we only need to fullfill the CSB again during hw_init
to prevent CSB/VRAM lost after S3

v2:
get_csb in init_rlc so hw_init() will make CSIB content
back even after reset or s3

v3:
use bo_create_kernel instead of bo_create_reserved for CSB
otherwise the bo_free_kernel() on CSB is not aligned and
would lead to its internal reserve pending there forever

take care of gfx7/8 as well

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Xiaojie Yuan <xiaojie.yuan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-12-03 11:57:00 -05:00
Xiaojie Yuan fa2b93e39b drm/amdgpu/gfx10: unlock srbm_mutex after queue programming finish
srbm_mutex is to guarantee atomicity for r/w of gfx indexed registers

Signed-off-by: Xiaojie Yuan <xiaojie.yuan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-12-03 11:52:55 -05:00
John Clements f0312f45a0 drm/amdgpu: Added ASIC specific checks in gfxhub V1.1 get XGMI info
Added max hive/node info checks per supported ASIC

Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: John Clements <john.clements@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-12-03 11:52:11 -05:00
Linus Torvalds 2352923c75 Merge branch 'for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu
Pull percpu updates from Dennis Zhou:
 "This has a change to fix percpu-refcount for RT kernels because
  rcu-sched disables preemption and the refcount release callback might
  acquire a spinlock"

* 'for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu:
  Revert "percpu: add __percpu to SHIFT_PERCPU_PTR"
  percpu-refcount: Use normal instead of RCU-sched"
  percpu: add __percpu to SHIFT_PERCPU_PTR
2019-12-03 08:50:56 -08:00
Likun Gao 76d8f83b2a drm/amdgpu/powerplay: unify smu send message function
Drop smu_send_smc_msg function from ASIC specify structure.
Reuse smu_send_smc_msg_with_param function for smu_send_smc_msg.
Set paramer to 0 for smu_send_msg function, otherwise it will send
with previous paramer value (Not a certain value).
Materialize msg type for smu send message function definition.

Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-12-03 11:49:41 -05:00
Alex Deucher 627f75d189 drm/amd/display: re-enable wait in pipelock, but add timeout
Removing this causes hangs in some games, so re-add it, but add
a timeout so we don't hang while switching flip types.

Bug: https://bugzilla.kernel.org/show_bug.cgi?id=205169
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=112266
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2019-12-03 11:46:33 -05:00
Zhan liu 30c517736e drm/amd/display: Get NV14 specific ip params as needed
[Why]
NV14 is using its own ip params that's different from other
DCN2.0 ASICs.

[How]
Add ASIC revision check to make sure NV14 gets correct
ip params.

Signed-off-by: Zhan Liu <zhan.liu@amd.com>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-12-03 11:42:09 -05:00
Zhan liu 516fb68d95 drm/amd/display: Adding NV14 IP Parameters
[Why]
NV14 IP Parameters are missing.

[How]
Add IP Parameters in.

Signed-off-by: Zhan liu <zhan.liu@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-12-03 11:41:53 -05:00
Zhan Liu c3d03c5a19 drm/amd/display: Include num_vmid and num_dsc within NV14's resource caps
[Why]
"num_vmid" and "num_dsc" are missing within NV14's resource caps structure.

[How]
Add the missing parts.

Signed-off-by: Zhan Liu <zhan.liu@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-12-03 11:39:48 -05:00
Monk Liu e2195f7d0e drm/amdgpu: use CPU to flush vmhub if sched stopped
otherwse the flush_gpu_tlb will hang if we unload the
KMD becuase the schedulers already stopped

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-12-03 11:39:21 -05:00
Christoph Hellwig ae58954d87 block: don't handle bio based drivers in blk_revalidate_disk_zones
bio based drivers only need to update q->nr_zones.  Do that manually
instead of overloading blk_revalidate_disk_zones to keep that function
simpler for the next round of changes that will rely even more on the
request based functionality.

Reviewed-by: Javier González <javier@javigon.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-12-03 08:51:25 -07:00
Christoph Hellwig e94f581944 block: allocate the zone bitmaps lazily
Allocate the conventional zone bitmap and the sequential zone locking
bitmap only when we find a zone of the respective type.  This avoids
wasting memory on the conventional zone bitmap for devices that only
have sequential zones, and will also prepare for other future changes.

Reviewed-by: Javier González <javier@javigon.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-12-03 08:51:25 -07:00
Christoph Hellwig f216fdd77b block: replace seq_zones_bitmap with conv_zones_bitmap
Invert the meaning of seq_zones_bitmap by keeping a bitmap of
conventional zones.  This allows not having a bitmap for devices
that do not have conventional zones.

Reviewed-by: Javier González <javier@javigon.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-12-03 08:51:25 -07:00
Christoph Hellwig 9b38bb4b1e block: simplify blkdev_nr_zones
Simplify the arguments to blkdev_nr_zones by passing a gendisk instead
of the block_device and capacity.  This also removes the need for
__blkdev_nr_zones as all callers are outside the fast path and can
deal with the additional branch.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-12-03 08:51:24 -07:00
Christoph Hellwig bb55628288 block: remove the empty line at the end of blk-zoned.c
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-12-03 08:51:24 -07:00
Christoph Hellwig 979d54475e null_blk: cleanup null_gendisk_register
Use a saner size calculation, and do a trivial cleanup on the zone
revalidation to prepare to future changes.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-12-03 08:51:24 -07:00
Damien Le Moal 5c4bd1f40c null_blk: fix zone size paramter check
For zoned=1 mode, the zone size must be a power of 2. Check this not
only when the zone size is specified during modprobe, but also when
creating a zoned null_blk device using configfs.

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-12-03 08:51:24 -07:00
Pavel Begunkov 795ee49c1a block: optimise bvec_iter_advance()
bvec_iter_advance() is quite popular, but compilers fail to do proper
alias analysis and optimise it good enough. The assembly is checked
for gcc 9.2, x86-64.

- remove @iter->bi_size from min(...), as it's always less than @bytes.
Modify at the beginning and forget about it.

- the compiler isn't able to collapse memory dependencies and remove
writes in the loop. Help it by explicitely using local vars.

Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-12-03 07:36:38 -07:00
Jackie Liu 8cdda87a44 io_uring: remove io_wq_current_is_worker
Since commit b18fdf71e0 ("io_uring: simplify io_req_link_next()"),
the io_wq_current_is_worker function is no longer needed, clean it
up.

Signed-off-by: Jackie Liu <liuyun01@kylinos.cn>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-12-03 07:04:32 -07:00
Jackie Liu 22efde5998 io_uring: remove parameter ctx of io_submit_state_start
Parameter ctx we have never used, clean it up.

Signed-off-by: Jackie Liu <liuyun01@kylinos.cn>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-12-03 07:04:32 -07:00
Jens Axboe da8c969069 io_uring: mark us with IORING_FEAT_SUBMIT_STABLE
If this flag is set, applications can be certain that any data for
async offload has been consumed when the kernel has consumed the
SQE.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-12-03 07:04:32 -07:00
Jens Axboe f499a021ea io_uring: ensure async punted connect requests copy data
Just like commit f67676d160 for read/write requests, this one ensures
that the sockaddr data has been copied for IORING_OP_CONNECT if we need
to punt the request to async context.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-12-03 07:04:30 -07:00
Jens Axboe 03b1230ca1 io_uring: ensure async punted sendmsg/recvmsg requests copy data
Just like commit f67676d160 for read/write requests, this one ensures
that the msghdr data is fully copied if we need to punt a recvmsg or
sendmsg system call to async context.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-12-03 07:03:35 -07:00
Matt Roper 01bb630319 drm/i915/ehl: Make icp_digital_port_connected() use phy instead of port
When looking at SDEISR to determine the connection status of combo
outputs, we should use the phy index rather than the port index.
Although they're usually the same thing, EHL's DDI-D (port D) is
attached to PHY-A and SDEISR doesn't even have bits for a "D" output.
It's also possible that future platforms may map DDIs (the internal
display engine programming units) to PHYs (the output handling on the IO
side) in ways where port!=phy, so let's look at the PHY index by
default.

v2: Rename to intel_combo_phy_connected.  (Lucas)

Fixes: 719d240026 ("drm/i915/ehl: Enable DDI-D")
Cc: José Roberto de Souza <jose.souza@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191127221314.575575-2-matthew.d.roper@intel.com
(cherry picked from commit 3d1e388d40)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
2019-12-03 13:06:05 +02:00
Jean Delvare 7c2378800c firmware: dmi: Add dmi_memdev_handle
Add a utility function dmi_memdev_handle() which returns the DMI
handle associated with a given memory slot. This will allow kernel
drivers to iterate over the memory slots.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
2019-12-03 11:20:37 +01:00
Jean Delvare 9e0afe3910 firmware: dmi: Remember the memory type
Store the memory type while walking the memory slots, and provide a
way to retrieve it later.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
2019-12-03 11:20:37 +01:00
Srinivas Neeli 3d3c817c3a can: xilinx_can: Fix usage of skb memory
As per linux can framework, driver not allowed to touch the skb memory
after can_put_echo_skb() call.
This patch fixes the same.
https://www.spinics.net/lists/linux-can/msg02199.html

Signed-off-by: Srinivas Neeli <srinivas.neeli@xilinx.com>
Reviewed-by: Appana Durga Kedareswara Rao <appana.durga.rao@xilinx.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-12-03 11:15:08 +01:00
Venkatesh Yadav Abbarapu b848238d86 can: xilinx_can: skip error message on deferred probe
When the CAN bus clock is provided from the clock wizard, clock wizard
driver may not be available when can driver probes resulting to the
error message "bus clock not found error".

As this error message is not very useful to the end user, skip printing
in the case of deferred probe.

Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@xilinx.com>
Signed-off-by: Srinivas Neeli <srinivas.neeli@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Appana Durga Kedareswara Rao <appana.durga.rao@xilinx.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-12-03 11:15:08 +01:00
Johan Hovold 870db5d101 can: ucan: fix non-atomic allocation in completion handler
USB completion handlers are called in atomic context and must
specifically not allocate memory using GFP_KERNEL.

Fixes: 9f2d3eae88 ("can: ucan: add driver for Theobroma Systems UCAN devices")
Cc: stable <stable@vger.kernel.org>     # 4.19
Cc: Jakob Unterwurzacher <jakob.unterwurzacher@theobroma-systems.com>
Cc: Martin Elshuber <martin.elshuber@theobroma-systems.com>
Cc: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-12-03 11:15:08 +01:00
Jouni Hogander 9ebd796e24 can: slcan: Fix use-after-free Read in slcan_open
Slcan_open doesn't clean-up device which registration failed from the
slcan_devs device list. On next open this list is iterated and freed
device is accessed. Fix this by calling slc_free_netdev in error path.

Driver/net/can/slcan.c is derived from slip.c. Use-after-free error was
identified in slip_open by syzboz. Same bug is in slcan.c. Here is the
trace from the Syzbot slip report:

__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x197/0x210 lib/dump_stack.c:118
print_address_description.constprop.0.cold+0xd4/0x30b mm/kasan/report.c:374
__kasan_report.cold+0x1b/0x41 mm/kasan/report.c:506
kasan_report+0x12/0x20 mm/kasan/common.c:634
__asan_report_load8_noabort+0x14/0x20 mm/kasan/generic_report.c:132
sl_sync drivers/net/slip/slip.c:725 [inline]
slip_open+0xecd/0x11b7 drivers/net/slip/slip.c:801
tty_ldisc_open.isra.0+0xa3/0x110 drivers/tty/tty_ldisc.c:469
tty_set_ldisc+0x30e/0x6b0 drivers/tty/tty_ldisc.c:596
tiocsetd drivers/tty/tty_io.c:2334 [inline]
tty_ioctl+0xe8d/0x14f0 drivers/tty/tty_io.c:2594
vfs_ioctl fs/ioctl.c:46 [inline]
file_ioctl fs/ioctl.c:509 [inline]
do_vfs_ioctl+0xdb6/0x13e0 fs/ioctl.c:696
ksys_ioctl+0xab/0xd0 fs/ioctl.c:713
__do_sys_ioctl fs/ioctl.c:720 [inline]
__se_sys_ioctl fs/ioctl.c:718 [inline]
__x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718
do_syscall_64+0xfa/0x760 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe

Fixes: ed50e1600b ("slcan: Fix memory leak in error path")
Cc: Wolfgang Grandegger <wg@grandegger.com>
Cc: Marc Kleine-Budde <mkl@pengutronix.de>
Cc: David Miller <davem@davemloft.net>
Cc: Oliver Hartkopp <socketcan@hartkopp.net>
Cc: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Jouni Hogander <jouni.hogander@unikie.com>
Cc: linux-stable <stable@vger.kernel.org> # >= v5.4
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-12-03 11:15:08 +01:00
Sriram Dash 8c2a58568d MAINTAINERS: add myself as maintainer of MCAN MMIO device driver
Since we are actively working on MMIO MCAN device driver,
as discussed with Marc, I am adding myself as a maintainer.

Signed-off-by: Sriram Dash <sriram.dash@samsung.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-12-03 11:15:08 +01:00
Appana Durga Kedareswara rao 825e5601c1 MAINTAINERS: add fragment for xilinx CAN driver
Added entry for xilinx CAN driver.

Signed-off-by: Appana Durga Kedareswara rao <appana.durga.rao@xilinx.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-12-03 11:15:07 +01:00
Takashi Iwai e38e486d66 ALSA: hda: Modify stream stripe mask only when needed
The recent commit in HD-audio stream management for changing the
stripe control seems causing a regression on some platforms.  The
stripe control is currently used only by HDMI codec, and applying the
stripe mask unconditionally may lead to scratchy and static noises as
seen on some MacBooks.

For addressing the regression, this patch changes the stream
management code to apply the stripe mask conditionally only when the
codec driver requested.

Fixes: 9b6f7e7a29 ("ALSA: hda: program stripe bits for controller")
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=204477
Tested-by: Michael Pobega <mpobega@neverware.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20191202074947.1617-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-12-03 07:46:30 +01:00
Jens Axboe f67676d160 io_uring: ensure async punted read/write requests copy iovec
Currently we don't copy the iovecs when we punt to async context. This
can be problematic for applications that store the iovec on the stack,
as they often assume that it's safe to let the iovec go out of scope
as soon as IO submission has been called. This isn't always safe, as we
will re-copy the iovec once we're in async context.

Make this 100% safe by copying the iovec just once. With this change,
applications may safely store the iovec on the stack for all cases.

Reported-by: 李通洲 <carter.li@eoitek.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-12-02 21:33:25 -07:00
Omar Sandoval 69ffe5960d xfs: don't check for AG deadlock for realtime files in bunmapi
Commit 5b094d6dac ("xfs: fix multi-AG deadlock in xfs_bunmapi") added
a check in __xfs_bunmapi() to stop early if we would touch multiple AGs
in the wrong order. However, this check isn't applicable for realtime
files. In most cases, it just makes us do unnecessary commits. However,
without the fix from the previous commit ("xfs: fix realtime file data
space leak"), if the last and second-to-last extents also happen to have
different "AG numbers", then the break actually causes __xfs_bunmapi()
to return without making any progress, which sends
xfs_itruncate_extents_flags() into an infinite loop.

Fixes: 5b094d6dac ("xfs: fix multi-AG deadlock in xfs_bunmapi")
Signed-off-by: Omar Sandoval <osandov@fb.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-12-02 17:58:51 -08:00
Omar Sandoval 0c4da70c83 xfs: fix realtime file data space leak
Realtime files in XFS allocate extents in rextsize units. However, the
written/unwritten state of those extents is still tracked in blocksize
units. Therefore, a realtime file can be split up into written and
unwritten extents that are not necessarily aligned to the realtime
extent size. __xfs_bunmapi() has some logic to handle these various
corner cases. Consider how it handles the following case:

1. The last extent is unwritten.
2. The last extent is smaller than the realtime extent size.
3. startblock of the last extent is not aligned to the realtime extent
   size, but startblock + blockcount is.

In this case, __xfs_bunmapi() calls xfs_bmap_add_extent_unwritten_real()
to set the second-to-last extent to unwritten. This should merge the
last and second-to-last extents, so __xfs_bunmapi() moves on to the
second-to-last extent.

However, if the size of the last and second-to-last extents combined is
greater than MAXEXTLEN, xfs_bmap_add_extent_unwritten_real() does not
merge the two extents. When that happens, __xfs_bunmapi() skips past the
last extent without unmapping it, thus leaking the space.

Fix it by only unwriting the minimum amount needed to align the last
extent to the realtime extent size, which is guaranteed to merge with
the last extent.

Signed-off-by: Omar Sandoval <osandov@fb.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-12-02 17:58:50 -08:00
Jens Axboe 1a6b74fc87 io_uring: add general async offload context
Right now we just copy the sqe for async offload, but we want to store
more context across an async punt. In preparation for doing so, put the
sqe copy inside a structure that we can expand. With this pointer added,
we can get rid of REQ_F_FREE_SQE, as that is now indicated by whether
req->io is NULL or not.

No functional changes in this patch.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-12-02 18:49:33 -07:00
Eric Biggers 490547ca2d block: don't send uevent for empty disk when not invalidating
Commit 6917d06899 ("block: merge invalidate_partitions into
rescan_partitions") caused a regression where systemd-udevd spins
forever using max CPU starting at boot time.

It's caused by a behavior change where a KOBJ_CHANGE uevent is now sent
in a case where previously it wasn't.

Restore the old behavior.

Fixes: 6917d06899 ("block: merge invalidate_partitions into rescan_partitions")
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-12-02 18:49:30 -07:00
Jens Axboe 441cdbd544 io_uring: transform send/recvmsg() -ERESTARTSYS to -EINTR
We should never return -ERESTARTSYS to userspace, transform it into
-EINTR.

Cc: stable@vger.kernel.org # v5.3+
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-12-02 18:49:10 -07:00
Linus Torvalds 76bb8b0596 Kbuild updates for v5.5
- remove unneeded asm headers from hexagon, ia64
 
  - add 'dir-pkg' target, which works like 'tar-pkg' but skips archiving
 
  - add 'helpnewconfig' target, which shows help for new CONFIG options
 
  - support 'make nsdeps' for external modules
 
  - make rebuilds faster by deleting $(wildcard $^) checks
 
  - remove compile tests for kernel-space headers
 
  - refactor modpost to simplify modversion handling
 
  - make single target builds faster
 
  - optimize and clean up scripts/kallsyms.c
 
  - refactor various Makefiles and scripts
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Merge tag 'kbuild-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild updates from Masahiro Yamada:

 - remove unneeded asm headers from hexagon, ia64

 - add 'dir-pkg' target, which works like 'tar-pkg' but skips archiving

 - add 'helpnewconfig' target, which shows help for new CONFIG options

 - support 'make nsdeps' for external modules

 - make rebuilds faster by deleting $(wildcard $^) checks

 - remove compile tests for kernel-space headers

 - refactor modpost to simplify modversion handling

 - make single target builds faster

 - optimize and clean up scripts/kallsyms.c

 - refactor various Makefiles and scripts

* tag 'kbuild-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (59 commits)
  MAINTAINERS: update Kbuild/Kconfig maintainer's email address
  scripts/kallsyms: remove redundant initializers
  scripts/kallsyms: put check_symbol_range() calls close together
  scripts/kallsyms: make check_symbol_range() void function
  scripts/kallsyms: move ignored symbol types to is_ignored_symbol()
  scripts/kallsyms: move more patterns to the ignored_prefixes array
  scripts/kallsyms: skip ignored symbols very early
  scripts/kallsyms: add const qualifiers where possible
  scripts/kallsyms: make find_token() return (unsigned char *)
  scripts/kallsyms: replace prefix_underscores_count() with strspn()
  scripts/kallsyms: add sym_name() to mitigate cast ugliness
  scripts/kallsyms: remove unneeded length check for prefix matching
  scripts/kallsyms: remove redundant is_arm_mapping_symbol()
  scripts/kallsyms: set relative_base more effectively
  scripts/kallsyms: shrink table before sorting it
  scripts/kallsyms: fix definitely-lost memory leak
  scripts/kallsyms: remove unneeded #ifndef ARRAY_SIZE
  kbuild: make single target builds even faster
  modpost: respect the previous export when 'exported twice' is warned
  modpost: do not set ->preloaded for symbols from Module.symvers
  ...
2019-12-02 17:35:04 -08:00
Linus Torvalds e30dbe50dc linux-kselftest-5.5-rc1-fixes2
This second Kselftest fixes update for Linux 5.5-rc1 consists of
 an urgent revert to fix regression in CI coverage.
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Merge tag 'linux-kselftest-5.5-rc1-fixes2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull more kselftest fixes from Shuah Khan:
 "This second Kselftest fixes update for Linux 5.5-rc1 consists of an
  urgent revert to fix regression in CI coverage"

* tag 'linux-kselftest-5.5-rc1-fixes2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  Revert "selftests: Fix O= and KBUILD_OUTPUT handling for relative paths"
2019-12-02 17:29:25 -08:00
Linus Torvalds 483847a702 Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:

 - Fix build error in crypto lib code when crypto API is off

 - Fix NULL/error check in hisilicon

 - Fix Kconfig-related build error in talitos

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: hisilicon - fix a NULL vs IS_ERR() bug in sec_create_qp_ctx()
  crypto: talitos - Fix build error by selecting LIB_DES
  crypto: arch - conditionalize crypto api in arch glue for lib code
2019-12-02 17:23:21 -08:00
Linus Torvalds 120e47686a OpenRISC updates for 5.5
One thing for 5.5:
  - White space fixups in Kconfig files from Krzysztof Kozlowski
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Merge tag 'for-linus' of git://github.com/openrisc/linux

Pull OpenRISC update from Stafford Horne:
 "White space fixups in Kconfig files from Krzysztof Kozlowski"

* tag 'for-linus' of git://github.com/openrisc/linux:
  openrisc: Fix Kconfig indentation
2019-12-02 17:18:43 -08:00