linux

korg/linux

mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-12-03 00:54:09 +08:00

Go to file

Kuninori Morimoto 2ce1b21cb3 ASoC: rsnd: fixup DMAEngine API commit `d5bb69dc54` ("ASoC: sh: rcar: dma: : use proper DMAENGINE API for termination") updated DMAEngine API _all() to _sync(), but it should be _async(). _all() and _async() are almost same, the difference is only return error code. _sync() will call dmaengine_synchronize() and will be kernel panic. This patch is needed for v5.15 or later. [ 27.293264] BUG: scheduling while atomic: irq/130-ec70000/131/0x00000003 [ 27.300084] 2 locks held by irq/130-ec70000/131: [ 27.304743] #0: ffff0004c274d908 (&group->lock){....}-{2:2}, at: _snd_pcm_stream_lock_irqsave+0x48/0x54 [ 27.314344] #1: ffff0004c1788c60 (&priv->lock#2){....}-{2:2}, at: rsnd_soc_dai_trigger+0x70/0x7bc [ 27.323409] irq event stamp: 206 [ 27.326664] hardirqs last enabled at (205): [<ffff80001082de50>] _raw_spin_unlock_irq+0x50/0xa0 [ 27.335529] hardirqs last disabled at (206): [<ffff80001082d9e4>] _raw_spin_lock_irqsave+0xc4/0xd0 [ 27.344564] softirqs last enabled at (0): [<ffff800010037324>] copy_process+0x644/0x1b10 [ 27.352819] softirqs last disabled at (0): [<0000000000000000>] 0x0 [ 27.359142] CPU: 0 PID: 131 Comm: irq/130-ec70000 Not tainted 5.14.0-rc1+ #918 [ 27.366429] Hardware name: Renesas H3ULCB Kingfisher board based on r8a77950 (DT) [ 27.373975] Call trace: [ 27.376442] dump_backtrace+0x0/0x1b4 [ 27.380141] show_stack+0x24/0x30 [ 27.383488] dump_stack_lvl+0x8c/0xb8 [ 27.387184] dump_stack+0x18/0x34 [ 27.390528] __schedule_bug+0x8c/0x9c [ 27.394224] __schedule+0x790/0x8dc [ 27.397746] schedule+0x7c/0x110 [ 27.401003] synchronize_irq+0x94/0xd0 [ 27.404786] rcar_dmac_device_synchronize+0x20/0x2c [ 27.409710] rsnd_dmaen_stop+0x50/0x64 [ 27.413495] rsnd_soc_dai_trigger+0x554/0x7bc [ 27.417890] snd_soc_pcm_dai_trigger+0xe8/0x264 Cc: <stable@kernel.org> Fixes: commit `d5bb69dc54` ("ASoC: sh: rcar: dma: : use proper DMAENGINE API for termination") Link: https://lore.kernel.org/r/TY2PR01MB3692889E1A7476C4322CC296D8AE9@TY2PR01MB3692.jpnprd01.prod.outlook.com Reported-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Acked-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Link: https://lore.kernel.org/r/87mtmfz36o.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Mark Brown <broonie@kernel.org>		2021-11-12 21:25:19 +00:00
arch	Linux 5.15-rc6	2021-10-18 13:50:42 +01:00
block	block-5.15-2021-10-17	2021-10-17 19:25:20 -10:00
certs	certs: Add support for using elliptic curve keys for signing modules	2021-08-23 19:55:42 +03:00
crypto	Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2021-08-30 12:57:10 -07:00
Documentation	ASoC: mediatek: mt8195: add mt8195-mt6359-rt1011-rt5682 bindings document	2021-10-29 16:49:49 +01:00
drivers	v5.15-rc1 + 20210927135559.738-[23456]-srinivas.kandagatla@linaro.org	2021-10-26 13:49:25 +01:00
fs	io_uring-5.15-2021-10-17	2021-10-17 19:20:13 -10:00
include	ASoC: soc-acpi: add comp_ids field for machine driver matching	2021-10-29 18:55:16 +01:00
init	bootconfig: init: Fix memblock leak in xbc_make_cmdline()	2021-10-10 22:27:40 -04:00
ipc	ipc: remove memcg accounting for sops objects in do_semtimedop()	2021-09-14 10:22:11 -07:00
kernel	Tracing fixes for 5.15:	2021-10-16 10:51:41 -07:00
lib	linux-kselftest-kunit-fixes-5.15-rc6	2021-10-11 17:25:08 -07:00
LICENSES	LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes"	2021-07-15 06:31:24 -06:00
mm	memblock: exclude NOMAP regions from kmemleak	2021-10-13 08:36:59 +03:00
net	icmp: fix icmp_ext_echo_iio parsing in icmp_build_probe	2021-10-14 07:54:47 -07:00
samples	samples/bpf: Relicense bpf_insn.h as GPL-2.0-only OR BSD-2-Clause	2021-09-29 16:03:55 +02:00
scripts	Tracing fixes for 5.15:	2021-10-16 10:51:41 -07:00
security	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/	2021-10-07 12:44:41 +01:00
sound	ASoC: rsnd: fixup DMAEngine API	2021-11-12 21:25:19 +00:00
tools	- Update section headers before the respective relocations to not	2021-10-17 17:41:39 -10:00
usr	.gitignore: prefix local generated files with a slash	2021-05-02 00:43:35 +09:00
virt	KVM: Remove tlbs_dirty	2021-09-23 11:01:12 -04:00
.clang-format	clang-format: Update with the latest for_each macro list	2021-05-12 23:32:39 +02:00
.cocciconfig
.get_maintainer.ignore	Opt out of scripts/get_maintainer.pl	2019-05-16 10:53:40 -07:00
.gitattributes	.gitattributes: use 'dts' diff driver for dts files	2019-12-04 19:44:11 -08:00
.gitignore	.gitignore: ignore only top-level modules.builtin	2021-05-02 00:43:35 +09:00
.mailmap	mailmap: update email address of Matthias Fuchs and Thomas Körper	2021-08-19 09:39:44 +02:00
COPYING	COPYING: state that all contributions really are covered by this file	2020-02-10 13:32:20 -08:00
CREDITS	MAINTAINERS: Move Daniel Drake to credits	2021-09-21 08:34:58 +03:00
Kbuild	kbuild: rename hostprogs-y/always to hostprogs/always-y	2020-02-04 01:53:07 +09:00
Kconfig	kbuild: ensure full rebuild when the compiler is updated	2020-05-12 13:28:33 +09:00
MAINTAINERS	Linux 5.15-rc6	2021-10-18 13:50:42 +01:00
Makefile	Linux 5.15-rc6	2021-10-17 20:00:13 -10:00
README	Drop all 00-INDEX files from Documentation/	2018-09-09 15:08:58 -06:00

README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.