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Nilesh Javali 415d614344 scsi: qla2xxx: Perform lockless command completion in abort path commit `0367076b08` upstream. While adding and removing the controller, the following call trace was observed: WARNING: CPU: 3 PID: 623596 at kernel/dma/mapping.c:532 dma_free_attrs+0x33/0x50 CPU: 3 PID: 623596 Comm: sh Kdump: loaded Not tainted 5.14.0-96.el9.x86_64 #1 RIP: 0010:dma_free_attrs+0x33/0x50 Call Trace: qla2x00_async_sns_sp_done+0x107/0x1b0 [qla2xxx] qla2x00_abort_srb+0x8e/0x250 [qla2xxx] ? ql_dbg+0x70/0x100 [qla2xxx] __qla2x00_abort_all_cmds+0x108/0x190 [qla2xxx] qla2x00_abort_all_cmds+0x24/0x70 [qla2xxx] qla2x00_abort_isp_cleanup+0x305/0x3e0 [qla2xxx] qla2x00_remove_one+0x364/0x400 [qla2xxx] pci_device_remove+0x36/0xa0 __device_release_driver+0x17a/0x230 device_release_driver+0x24/0x30 pci_stop_bus_device+0x68/0x90 pci_stop_and_remove_bus_device_locked+0x16/0x30 remove_store+0x75/0x90 kernfs_fop_write_iter+0x11c/0x1b0 new_sync_write+0x11f/0x1b0 vfs_write+0x1eb/0x280 ksys_write+0x5f/0xe0 do_syscall_64+0x5c/0x80 ? do_user_addr_fault+0x1d8/0x680 ? do_syscall_64+0x69/0x80 ? exc_page_fault+0x62/0x140 ? asm_exc_page_fault+0x8/0x30 entry_SYSCALL_64_after_hwframe+0x44/0xae The command was completed in the abort path during driver unload with a lock held, causing the warning in abort path. Hence complete the command without any lock held. Reported-by: Lin Li <lilin@redhat.com> Tested-by: Lin Li <lilin@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: Nilesh Javali <njavali@marvell.com> Link: https://lore.kernel.org/r/20230313043711.13500-2-njavali@marvell.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Reviewed-by: John Meneghini <jmeneghi@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		History 2023-03-30 12:51:25 +02:00
arch	perf/x86/amd/core: Always clear status for idx	2023-03-30 12:51:24 +02:00
block	block: count 'ios' and 'sectors' when io is done for bio-based device	2023-03-22 13:37:50 +01:00
certs	certs: Fix build error when PKCS#11 URI contains semicolon	2023-01-31 17:53:01 +09:00
crypto	crypto: rsa-pkcs1pad - Use akcipher_request_complete	2023-03-10 09:28:18 +01:00
Documentation	docs: Correct missing "d_" prefix for dentry_operations member d_weak_revalidate	2023-03-22 13:37:42 +01:00
drivers	scsi: qla2xxx: Perform lockless command completion in abort path	2023-03-30 12:51:25 +02:00
fs	ksmbd: fix possible refcount leak in smb2_open()	2023-03-30 12:51:21 +02:00
include	entry: Fix noinstr warning in __enter_from_user_mode()	2023-03-30 12:51:24 +02:00
init	Kbuild fixes for v6.2 (3rd)	2023-01-21 10:56:37 -08:00
io_uring	io_uring/msg_ring: let target know allocated index	2023-03-22 13:38:08 +01:00
ipc	Non-MM patches for 6.2-rc1.	2022-12-12 17:28:58 -08:00
kernel	entry/rcu: Check TIF_RESCHED _after_ delayed RCU wake-up	2023-03-30 12:51:24 +02:00
lib	cpuidle: lib/bug: Disable rcu_is_watching() during WARN/BUG	2023-03-10 09:29:06 +01:00
LICENSES	LICENSES: Add the copyleft-next-0.3.1 license	2022-11-08 15:44:01 +01:00
mm	mm: teach mincore_hugetlb about pte markers	2023-03-22 13:38:07 +01:00
net	Bluetooth: HCI: Fix global-out-of-bounds	2023-03-30 12:51:23 +02:00
rust	rust: print: avoid evaluating arguments in `pr_*` macros in `unsafe` blocks	2023-01-16 00:54:35 +01:00
samples	ftrace: Export ftrace_free_filter() to modules	2023-01-24 11:20:58 -05:00
scripts	kconfig: Update config changed flag before calling callback	2023-03-22 13:37:55 +01:00
security	keys: Do not cache key in task struct if key is requested from kernel thread	2023-03-30 12:50:57 +02:00
sound	ASoC: qcom: q6prm: fix incorrect clk_root passed to ADSP	2023-03-22 13:38:08 +01:00
tools	bootconfig: Fix testcase to increase max node	2023-03-30 12:50:57 +02:00
usr	usr/gen_init_cpio.c: remove unnecessary -1 values from int file	2022-10-03 14:21:44 -07:00
virt	KVM: Register /dev/kvm as the _very_ last thing during initialization	2023-03-10 09:29:33 +01:00
.clang-format	iommufd for 6.2	2022-12-14 09:15:43 -08:00
.cocciconfig	scripts: add Linux .cocciconfig for coccinelle	2016-07-22 12:13:39 +02:00
.get_maintainer.ignore	get_maintainer: add Alan to .get_maintainer.ignore	2022-08-20 15:17:44 -07:00
.gitattributes	.gitattributes: use 'dts' diff driver for dts files	2019-12-04 19:44:11 -08:00
.gitignore	.gitignore: ignore *.rpm	2022-12-30 17:22:14 +09:00
.mailmap	12 hotfixes, mostly against mm/. Five of these fixes are cc:stable.	2023-02-13 14:09:20 -08:00
.rustfmt.toml	rust: add `.rustfmt.toml`	2022-09-28 09:02:20 +02:00
COPYING	COPYING: state that all contributions really are covered by this file	2020-02-10 13:32:20 -08:00
CREDITS	MAINTAINERS: update SCTP maintainers	2023-02-02 11:35:33 -08:00
Kbuild	Kbuild updates for v6.1	2022-10-10 12:00:45 -07:00
Kconfig	kbuild: ensure full rebuild when the compiler is updated	2020-05-12 13:28:33 +09:00
MAINTAINERS	audit: update the mailing list in MAINTAINERS	2023-02-25 11:13:29 +01:00
Makefile	Linux 6.2.8	2023-03-22 13:38:11 +01:00
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.