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1,309,163 commits

Author SHA1 Message Date
Linus Torvalds
42c5b51949 platform-drivers-x86 for v6.11-7
Fixes:
 - asus-wmi: Disable OOBE that interferes with backlight control
 - panasonic-laptop: Two fixes to SINF array handling
 
 The following is an automated shortlog grouped by driver:
 
 asus-wmi:
  -  Disable OOBE experience on Zenbook S 16
 
 panasonic-laptop:
  -  Allocate 1 entry extra in the sinf array
  -  Fix SINF array out of bounds accesses
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Merge tag 'platform-drivers-x86-v6.11-7' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver fixes from Ilpo Järvinen:

 - asus-wmi: Disable OOBE that interferes with backlight control

 - panasonic-laptop: Two fixes to SINF array handling

* tag 'platform-drivers-x86-v6.11-7' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
  platform/x86: asus-wmi: Disable OOBE experience on Zenbook S 16
  platform/x86: panasonic-laptop: Allocate 1 entry extra in the sinf array
  platform/x86: panasonic-laptop: Fix SINF array out of bounds accesses
2024-09-12 12:34:39 -07:00
Linus Torvalds
79a61cc3fc mm: avoid leaving partial pfn mappings around in error case
As Jann points out, PFN mappings are special, because unlike normal
memory mappings, there is no lifetime information associated with the
mapping - it is just a raw mapping of PFNs with no reference counting of
a 'struct page'.

That's all very much intentional, but it does mean that it's easy to
mess up the cleanup in case of errors.  Yes, a failed mmap() will always
eventually clean up any partial mappings, but without any explicit
lifetime in the page table mapping itself, it's very easy to do the
error handling in the wrong order.

In particular, it's easy to mistakenly free the physical backing store
before the page tables are actually cleaned up and (temporarily) have
stale dangling PTE entries.

To make this situation less error-prone, just make sure that any partial
pfn mapping is torn down early, before any other error handling.

Reported-and-tested-by: Jann Horn <jannh@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Simona Vetter <simona.vetter@ffwll.ch>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-09-12 12:10:00 -07:00
Mark Brown
49b2597a9e
ASoC: Intel: boards: updates for 6.12 - part 2
Merge series from Bard Liao <yung-chuan.liao@linux.intel.com>:

Cleanup from Brent Lu and add HDMI-In capture supports from Balamurugan C.
2024-09-12 19:59:49 +01:00
Johannes Berg
381d2f95c8 um: fix time-travel syscall scheduling hack
The schedule() call there really never did anything at
least since the introduction of the EEVDF scheduler,
but now I found a case where we permanently hang in a
loop of -ERESTARTNOINTR (due to locking.) Work around
it by making any syscalls with error return take time
(and then schedule after) so we cannot hang in such a
loop forever.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2024-09-12 20:46:23 +02:00
Tiwei Bie
ae0dc67c25 um: Remove outdated asm/sysrq.h header
This header no longer serves a purpose after show_trace was removed
by commit 9d1ee8ce92 ("um: Rewrite show_stack()").

Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2024-09-12 20:44:11 +02:00
Tiwei Bie
fe6abeba24 um: Remove the declaration of user_thread function
This function has never been defined since its declaration was
introduced by commit 1da177e4c3 ("Linux-2.6.12-rc2").

Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2024-09-12 20:43:26 +02:00
Tiwei Bie
bf67dbf4f7 um: Remove the call to SUBARCH_EXECVE1 macro
This macro has never been defined by any supported sub-architectures
in tree since it was introduced by commit 1d3468a664 ("[PATCH uml:
move _kern.c files").

Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2024-09-12 20:42:22 +02:00
Tiwei Bie
59376fb2a7 um: Remove unused mm_fd field from mm_id
It's no longer used since the removal of the SKAS3/4 support.

Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2024-09-12 20:36:22 +02:00
Tiwei Bie
94090f418f um: Remove unused fields from thread_struct
These fields are no longer used since the removal of tt mode.

Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2024-09-12 20:35:35 +02:00
Tiwei Bie
669afa4e87 um: Remove the redundant newpage check in update_pte_range
The two checks have been identical since commit ef714f1502 ("um:
remove force_flush_all from fork_handler"). And the inner one isn't
necessary anymore.

Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2024-09-12 20:34:39 +02:00
Tiwei Bie
2fcd16fbab um: Remove unused kpte_clear_flush macro
This macro has no users, and __flush_tlb_one doesn't exist either.

Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2024-09-12 20:32:55 +02:00
Rodrigo Vivi
ad92f52312 drm/xe: Suppress missing outer rpm protection warning
Do not raise a WARN if we are likely within suspending or resuming
path. This is likely this false positive:

rpm_status:           0000:03:00.0 status=RPM_SUSPENDING
console:              xe_bo_evict_all (called from suspend)
xe_sched_job_create:  dev=0000:03:00.0, ...
xe_sched_job_exec:    dev=0000:03:00.0, ...
xe_pm_runtime_put:    dev=0000:03:00.0, ...
xe_sched_job_run:     dev=0000:03:00.0, ...
rpm_usage:            0000:03:00.0 flags-0 cnt-2  ...
rpm_usage:            0000:03:00.0 flags-0 cnt-2  ...
rpm_usage:            0000:03:00.0 flags-0 cnt-2  ...
console:              xe 0000:03:00.0: [drm] Missing outer runtime
                                                     PM protection
console:               xe_guc_ct_send+0x15/0x50 [xe]
console:               guc_exec_queue_run_job+0x1509/0x3950 [xe]
[snip]
console:               drm_sched_run_job_work+0x649/0xc20

At this point, BOs are getting evicted from VRAM with rpm
usage-counter = 2, but rpm status = SUSPENDING.

The xe->pm_callback_task won't be equal 'current' because this call is
coming from a work queue.

So, pm_runtime_get_if_active() will be called and return 0 because rpm
status != ACTIVE (but equal SUSPENDING or RESUMING).

v2: Still get the reference even on non suspending/resuming
    path (Jonathan, Brost).

Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240905140215.56404-1-rodrigo.vivi@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
(cherry picked from commit cb85e39dc5)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2024-09-12 13:32:47 -05:00
Gaosheng Cui
2df8c8d118 um: Remove obsoleted declaration for execute_syscall_skas
The execute_syscall_skas() have been removed since
commit e32dacb9f4 ("[PATCH] uml: system call path cleanup"),
and now it is useless, so remove it.

Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Richard Weinberger <richard@nod.at>
2024-09-12 20:23:33 +02:00
Renzo Davoli
cccf19f8b5 user_mode_linux_howto_v2: add VDE vector support in doc
Add a description of the VDE vector transport in user_mode_linux_howto_v2.rst.

Signed-off-by: Renzo Davoli <renzo@cs.unibo.it>
Signed-off-by: Renzo Davoi <renzo@cs.unibo.it>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Richard Weinberger <richard@nod.at>
2024-09-12 20:18:51 +02:00
Renzo Davoli
ab1d5895cf vector_user: add VDE support
This is the actual implementation of VDE support as a vector transport.

Signed-off-by: Renzo Davoli <renzo@cs.unibo.it>
Acked-By: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2024-09-12 20:16:42 +02:00
Johannes Berg
64dcf0b877 um: remove ARCH_NO_PREEMPT_DYNAMIC
There's no such symbol and we currently don't have any of the
mechanisms to make boot-time selection cheap enough, so we can't
have HAVE_PREEMPT_DYNAMIC_CALL or HAVE_PREEMPT_DYNAMIC_KEY.

Remove the select statement.

Reported-by: Lukas Bulwahn <lbulwahn@redhat.com>
Fixes: cd01672d64 ("um: Enable preemption in UML")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2024-09-12 20:12:37 +02:00
Anton Ivanov
671cd5eed9 um: vector: Fix NAPI budget handling
Fix the handling of NAPI budget.

Signed-off-by: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2024-09-12 20:09:41 +02:00
Donald Hunter
6182e0b80f docs/bpf: Add missing BPF program types to docs
Update the table of program types in the libbpf documentation with the
recently added program types.

Signed-off-by: Donald Hunter <donald.hunter@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20240912095944.6386-1-donald.hunter@gmail.com
2024-09-12 10:56:41 -07:00
Anton Ivanov
612a8c8e0b um: vector: Replace locks guarding queue depth with atomics
UML vector drivers use ring buffer structures which map
preallocated skbs onto mmsg vectors for use with sendmmsg
and recvmmsg. They are designed around a single consumer,
single producer pattern allowing simultaneous enqueue and
dequeue.

Lock debugging with preemption showed possible races when
locking the queue depth. This patch addresses this by
removing extra locks, adding barriers and making queue
depth inc/dec and access atomic.

Signed-off-by: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2024-09-12 19:56:05 +02:00
Johannes Berg
ec24b988eb um: remove variable stack array in os_rcv_fd_msg()
When generalizing this, I was in the mindset of this being
"userspace" code, but even there we should not use variable
arrays as the kernel is moving away from allowing that.

Simply reserve (but not use) enough space for the maximum
two descriptors we might need now, and return an error if
attempting to receive more than that.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202407041459.3SYg4TEi-lkp@intel.com/
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2024-09-12 19:51:26 +02:00
Matthew Auld
83dcf232cc drm/xe: prevent potential UAF in pf_provision_vf_ggtt()
The node ptr can point to an already freed ptr, if we hit the path with
an already allocated node. We later dereference that pointer with:

	xe_gt_assert(gt, !xe_ggtt_node_allocated(node));

which is a potential UAF. Fix this by not stashing the ptr for node.
Also since it is likely a bad idea to leave config->ggtt_region pointing
to a stale ptr, also set that to NULL by calling
pf_release_vf_config_ggtt() instead of pf_release_ggtt().

Fixes: 34e804220f ("drm/xe: Make xe_ggtt_node struct independent")
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240828104341.180111-2-matthew.auld@intel.com
(cherry picked from commit 89076b5a8b)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2024-09-12 12:29:30 -05:00
Tang Bin
f6e2e7397d
ASoC: mediatek: mt7986-afe-pcm: Remove redundant error message
In the function mt7986_afe_pcm_dev_probe, when get irq
failed, the function platform_get_irq() logs an error
message, so remove redundant one here.

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com>
Link: https://patch.msgid.link/20240912084110.1854-1-tangbin@cmss.chinamobile.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-09-12 18:05:27 +01:00
Luiz Augusto von Dentz
7b05933340 Bluetooth: btusb: Fix not handling ZPL/short-transfer
Requesting transfers of the exact same size of wMaxPacketSize may result
in ZPL/short-transfer since the USB stack cannot handle it as we are
limiting the buffer size to be the same as wMaxPacketSize.

Also, in terms of throughput this change has the same effect to
interrupt endpoint as 290ba20081 "Bluetooth: Improve USB driver throughput
by increasing the frame size" had for the bulk endpoint, so users of the
advertisement bearer (e.g. BT Mesh) may benefit from this change.

Fixes: 5e23b923da ("[Bluetooth] Add generic driver for Bluetooth USB devices")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Tested-by: Kiran K <kiran.k@intel.com>
2024-09-12 12:27:50 -04:00
Michael Burch
39e4bfb466 Bluetooth: btusb: Add 2 USB HW IDs for MT7925 (0xe118/e)
Add 2 USB HW IDs for MT7925 (0xe118/e) to ensure proper recognition.

These HW IDs are extracted from Windows driver inf file:
https://dlcdnets.asus.com/pub/ASUS/nb/Image/Driver/Bluetooth/39389/Bluetooth_DCH_MediaTek_B_V1.1037.0.433Sub2_39389.exe?model=H7606WV

Patch has been tested successfully on an Asus ProArt P16 model H7606WV.
Controller is recognized devices pair successfully.

Signed-off-by: Michael Burch <me@michaelburch.net>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-09-12 12:24:16 -04:00
Scott Ehlert
9a53d1ff63 Bluetooth: btsdio: Do not bind to non-removable CYW4373
CYW4373 devices soldered onto the PCB (non-removable),
use a UART connection for Bluetooth and the advertised btsdio
support as an SDIO function should be ignored.

Signed-off-by: Scott Ehlert <ehlert@battelle.org>
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-09-12 12:24:08 -04:00
Jens Axboe
7cc2a6eadc io_uring: add IORING_REGISTER_COPY_BUFFERS method
Buffers can get registered with io_uring, which allows to skip the
repeated pin_pages, unpin/unref pages for each O_DIRECT operation. This
reduces the overhead of O_DIRECT IO.

However, registrering buffers can take some time. Normally this isn't an
issue as it's done at initialization time (and hence less critical), but
for cases where rings can be created and destroyed as part of an IO
thread pool, registering the same buffers for multiple rings become a
more time sensitive proposition. As an example, let's say an application
has an IO memory pool of 500G. Initial registration takes:

Got 500 huge pages (each 1024MB)
Registered 500 pages in 409 msec

or about 0.4 seconds. If we go higher to 900 1GB huge pages being
registered:

Registered 900 pages in 738 msec

which is, as expected, a fully linear scaling.

Rather than have each ring pin/map/register the same buffer pool,
provide an io_uring_register(2) opcode to simply duplicate the buffers
that are registered with another ring. Adding the same 900GB of
registered buffers to the target ring can then be accomplished in:

Copied 900 pages in 17 usec

While timing differs a bit, this provides around a 25,000-40,000x
speedup for this use case.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-09-12 10:14:15 -06:00
Jens Axboe
0b6d253e08 io_uring/register: provide helper to get io_ring_ctx from 'fd'
Can be done in one of two ways:

1) Regular file descriptor, just fget()
2) Registered ring, index our own table for that

In preparation for adding another register use of needing to get a ctx
from a file descriptor, abstract out this helper and use it in the main
register syscall as well.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-09-12 10:14:05 -06:00
Luis Felipe Hernandez
7fcc9b5321 lib/math: Add int_pow test suite
Adds test suite for integer based power function which performs integer
exponentiation.

The test suite is designed to verify that the implementation of int_pow
correctly computes the power of a given base raised to a given exponent.

The tests check various scenarios and edge cases to ensure the accuracy
and reliability of the exponentiation function.

Updated commit with test information at commit time: Shuah Khan

Signed-off-by: Luis Felipe Hernandez <luis.hernandez093@gmail.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2024-09-12 10:03:00 -06:00
Takashi Iwai
0b9f2bd00f ALSA: memalloc: Use proper DMA mapping API for x86 S/G buffer allocations
The fallback S/G buffer allocation for x86 used the addresses deduced
from the page allocations blindly.  It broke the allocations on IOMMU
and made us to work around with a hackish DMA ops check.

For cleaning up those messes, this patch switches to the proper DMA
mapping API usages with the standard sg-table instead.

By introducing the sg-table, the address table isn't needed, but for
keeping the original allocation sizes for freeing, replace it with the
array keeping the number of pages.

The get_addr callback is changed to use the existing one for
non-contiguous buffers.  (Also it's the reason sg_table is put at the
beginning of struct snd_dma_sg_fallback.)

And finally, the hackish workaround that checks the DMA ops is
dropped now.

Link: https://patch.msgid.link/20240912155227.4078-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2024-09-12 18:02:18 +02:00
Takashi Iwai
c880a51466 ALSA: memalloc: Use proper DMA mapping API for x86 WC buffer allocations
The x86 WC page allocation assumes incorrectly the DMA address
directly taken from the page.  Also it checks the DMA ops
inappropriately for switching to the own method.

This patch rewrites the stuff to use the proper DMA mapping API
instead.

Link: https://patch.msgid.link/20240912155227.4078-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2024-09-12 18:02:03 +02:00
Joshua Pius
a51c925c11 ALSA: usb-audio: Add logitech Audio profile quirk
Specify shortnames for the following Logitech Devices: Rally bar, Rally
bar mini, Tap, MeetUp and Huddle.

Signed-off-by: Joshua Pius <joshuapius@chromium.org>
Link: https://patch.msgid.link/20240912152635.1859737-1-joshuapius@google.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2024-09-12 18:01:25 +02:00
Brendan Jackman
e4835f1da4 kunit: tool: Build compile_commands.json
compile_commands.json is used by clangd[1] to provide code navigation
and completion functionality to editors. See [2] for an example
configuration that includes this functionality for VSCode.

It can currently be built manually when using kunit.py, by running:

  ./scripts/clang-tools/gen_compile_commands.py -d .kunit

With this change however, it's built automatically so you don't need to
manually keep it up to date.

Unlike the manual approach, having make build the compile_commands.json
means that it appears in the build output tree instead of at the root of
the source tree, so you'll need to add --compile-commands-dir=.kunit to
your clangd args for it to be found. This might turn out to be pretty
annoying, I'm not sure yet. If so maybe we can later add some hackery to
kunit.py to work around it.

[1] https://clangd.llvm.org/
[2] https://github.com/FlorentRevest/linux-kernel-vscode

Signed-off-by: Brendan Jackman <jackmanb@google.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2024-09-12 09:52:36 -06:00
Dave Jiang
b5209da36b cxl: Convert cxl_internal_send_cmd() to use 'struct cxl_mailbox' as input
With the CXL mailbox context split out, cxl_internal_send_cmd() can take
'struct cxl_mailbox' as an input parameter rather than
'struct memdev_dev_state'. Change input parameter for
cxl_internal_send_cmd() and fixup all impacted call sites.

Reviewed-by: Fan Ni <fan.ni@samsung.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Link: https://patch.msgid.link/20240905223711.1990186-4-dave.jiang@intel.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
2024-09-12 08:39:10 -07:00
Dave Jiang
8d8081cecf cxl: Move mailbox related bits to the same context
Create a new 'struct cxl_mailbox' and move all mailbox related bits to
it. This allows isolation of all CXL mailbox data in order to export
some of the calls to external kernel callers and avoid exporting of CXL
driver specific bits such has device states. The allocation of
'struct cxl_mailbox' is also split out with cxl_mailbox_init() so the
mailbox can be created independently.

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Alejandro Lucero <alucerop@amd.com>
Reviewed-by: Fan Ni <fan.ni@samsung.com>
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Link: https://patch.msgid.link/20240905223711.1990186-3-dave.jiang@intel.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
2024-09-12 08:38:01 -07:00
Gao Xiang
025497e1d1 erofs: reject inodes with negative i_size
Negative i_size is never supported, although crafted images with inodes
having negative i_size will NOT lead to security issues in our current
codebase:

The following image can verify this (gzip+base64 encoded):

H4sICCmk4mYAA3Rlc3QuaW1nAGNgGAWjYBSMVPDo4dcH3jP2aTED2TwMKgxMUHHNJY/SQDQX
LxcDIw3tZwXit44MDNpQ/n8gQJZ/vxjijosPuSyZ0DUDgQqcZoKzVYFsDShbHeh6PT29ktTi
Eqz2g/y2pBFiLxDMh4lhs5+W4TAKRsEoGAWjYBSMglEwCkYBPQAAS2DbowAQAAA=

Mark as bad inodes for such corrupted inodes explicitly.

Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20240912083538.3011860-1-hsiangkao@linux.alibaba.com
2024-09-12 23:00:09 +08:00
Gao Xiang
7c3ca1838a erofs: restrict pcluster size limitations
Error out if {en,de}encoded size of a pcluster is unsupported:
  Maximum supported encoded size (of a pcluster):  1 MiB
  Maximum supported decoded size (of a pcluster): 12 MiB

Users can still choose to use supported large configurations (e.g.,
for archival purposes), but there may be performance penalties in
low-memory scenarios compared to smaller pclusters.

Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20240912074156.2925394-1-hsiangkao@linux.alibaba.com
2024-09-12 23:00:09 +08:00
Chunhai Guo
79f504a2cd erofs: allocate more short-lived pages from reserved pool first
This patch aims to allocate bvpages and short-lived compressed pages
from the reserved pool first.

After applying this patch, there are three benefits.

1. It reduces the page allocation time.
 The bvpages and short-lived compressed pages account for about 4% of
the pages allocated from the system in the multi-app launch benchmarks
[1]. It reduces the page allocation time accordingly and lowers the
likelihood of blockage by page allocation in low memory scenarios.

2. The pages in the reserved pool will be allocated on demand.
 Currently, bvpages and short-lived compressed pages are short-lived
pages allocated from the system, and the pages in the reserved pool all
originate from short-lived pages. Consequently, the number of reserved
pool pages will increase to z_erofs_rsv_nrpages over time.
 With this patch, all short-lived pages are allocated from the reserved
pool first, so the number of reserved pool pages will only increase when
there are not enough pages. Thus, even if z_erofs_rsv_nrpages is set to
a large number for specific reasons, the actual number of reserved pool
pages may remain low as per demand. In the multi-app launch benchmarks
[1], z_erofs_rsv_nrpages is set at 256, while the number of reserved
pool pages remains below 64.

3. When erofs cache decompression is disabled
   (EROFS_ZIP_CACHE_DISABLED), all pages will *only* be allocated from
the reserved pool for erofs. This will significantly reduce the memory
pressure from erofs.

[1] For additional details on the multi-app launch benchmarks, please
refer to commit 0f6273ab46 ("erofs: add a reserved buffer pool for lz4
decompression").

Signed-off-by: Chunhai Guo <guochunhai@vivo.com>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Link: https://lore.kernel.org/r/20240906121110.3701889-1-guochunhai@vivo.com
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
2024-09-12 22:59:49 +08:00
Bibo Mao
3abb708ec0 LoongArch: KVM: Implement function kvm_para_has_feature()
Implement function kvm_para_has_feature() to detect supported paravirt
features. It can be used by device driver to detect and enable paravirt
features, such as the EIOINTC irqchip driver is able to detect feature
KVM_FEATURE_VIRT_EXTIOI and do some optimization.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2024-09-12 22:56:14 +08:00
Riyan Dhiman
26e197b7f9 block: fix potential invalid pointer dereference in blk_add_partition
The blk_add_partition() function initially used a single if-condition
(IS_ERR(part)) to check for errors when adding a partition. This was
modified to handle the specific case of -ENXIO separately, allowing the
function to proceed without logging the error in this case. However,
this change unintentionally left a path where md_autodetect_dev()
could be called without confirming that part is a valid pointer.

This commit separates the error handling logic by splitting the
initial if-condition, improving code readability and handling specific
error scenarios explicitly. The function now distinguishes the general
error case from -ENXIO without altering the existing behavior of
md_autodetect_dev() calls.

Fixes: b72053072c (block: allow partitions on host aware zone devices)
Signed-off-by: Riyan Dhiman <riyandhiman14@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240911132954.5874-1-riyandhiman14@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-09-12 08:46:40 -06:00
liuderong
2af583afcf f2fs: remove unused parameters
Remove unused parameter segno from f2fs_usable_segs_in_sec.

Signed-off-by: liuderong <liuderong@oppo.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2024-09-12 14:42:03 +00:00
Arnd Bergmann
ba091a81f8 spi: ep93xx: update kerneldoc comments for ep93xx_spi
Two fields got removed but are still documented:

drivers/spi/spi-ep93xx.c:98: warning: Excess struct member 'dma_rx_data' description in 'ep93xx_spi'
drivers/spi/spi-ep93xx.c:98: warning: Excess struct member 'dma_tx_data' description in 'ep93xx_spi'

Fixes: 3cfe73256905 ("spi: ep93xx: add DT support for Cirrus EP93xx")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-09-12 14:33:12 +00:00
Dan Carpenter
53cf1dc480 clk: ep93xx: Fix off by one in ep93xx_div_recalc_rate()
The psc->div[] array has psc->num_div elements.  These values come from
when we call clk_hw_register_div().  It's adc_divisors and
ARRAY_SIZE(adc_divisors)) and so on.  So this condition needs to be >=
instead of > to prevent an out of bounds read.

Fixes: 9645ccc7bd ("ep93xx: clock: convert in-place to COMMON_CLK")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Acked-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Reviewed-by: Nikita Shubin <nikita.shubin@maquefel.me>
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Link: https://lore.kernel.org/r/1caf01ad4c0a8069535813c26c7f0b8ea011155e.camel@linaro.org
[arnd: the original patch was for arch/arm/mach-ep93xx/clock.c,
but the same bug ended up in arch/arm/mach-ep93xx/clock.c.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-09-12 14:33:12 +00:00
Arnd Bergmann
e2a7910590 clk: ep93xx: add module license
When configured as a lodable module, this driver produces
a build time warning:

ERROR: modpost: missing MODULE_LICENSE() in drivers/clk/clk-ep93xx.o

All all three tags for license, author and description based
on the header.

Acked-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-09-12 14:33:12 +00:00
Nikita Shubin
a015b18286 dmaengine: cirrus: remove platform code
Remove DMA platform header, from now on we use device tree for DMA
clients.

Acked-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Nikita Shubin <nikita.shubin@maquefel.me>
Tested-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-09-12 14:33:12 +00:00
Alexander Sverdlin
29ed9cec87 ASoC: cirrus: edb93xx: Delete driver
Can be replaced with "simple-audio-card" for the rates up to 50kHz, refer
to commit "ARM: dts: ep93xx: Add EDB9302 DT".

Signed-off-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Signed-off-by: Nikita Shubin <nikita.shubin@maquefel.me>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-09-12 14:33:12 +00:00
Nikita Shubin
43528a7252 ARM: ep93xx: soc: drop defines
Remove unnecessary defines, as we dropped board files.

Signed-off-by: Nikita Shubin <nikita.shubin@maquefel.me>
Tested-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Acked-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-09-12 14:33:12 +00:00
Nikita Shubin
e5ef574dda ARM: ep93xx: delete all boardfiles
Delete the ep93xx board files.

Signed-off-by: Nikita Shubin <nikita.shubin@maquefel.me>
Tested-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Acked-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-09-12 14:33:12 +00:00
Nikita Shubin
a632229be2 ata: pata_ep93xx: remove legacy pinctrl use
Drop legacy acquire/release since we are using pinctrl for this now.

Signed-off-by: Nikita Shubin <nikita.shubin@maquefel.me>
Tested-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Acked-by: Damien Le Moal <dlemoal@kernel.org>
Acked-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-09-12 14:33:12 +00:00
Nikita Shubin
a48ac3dc56 pwm: ep93xx: drop legacy pinctrl
Drop legacy gpio request/free since we are using
pinctrl for this now.

Signed-off-by: Nikita Shubin <nikita.shubin@maquefel.me>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Thierry Reding <thierry.reding@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-09-12 14:33:11 +00:00
Nikita Shubin
046322f1e1 ARM: ep93xx: DT for the Cirrus ep93xx SoC platforms
Add compulsory device tree support to the Cirrus ep93xx ARMv4 platform.

- select PINCTRL_EP93xx
- select COMMON_CLK_EP93XX, as clock driver moved out of platform code
- select ARCH_HAS_RESET_CONTROLLER

Select ARM_ATAG_DTB_COMPAT to update device tree with information
about memory passed from bootloader.

We have to leave all MACH options as they are used for board checking
before decomp, to turn off watchdog and ethernet DMA.

Tested-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Signed-off-by: Nikita Shubin <nikita.shubin@maquefel.me>
Tested-by: Michael Peters <mpeters@embeddedTS.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Kris Bahnsen <kris@embeddedTS.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Acked-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Damien Le Moal <dlemoal@kernel.org>
Acked-by: Sebastian Reichel <sre@kernel.org>
Acked-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-09-12 14:33:11 +00:00