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Christoph Hellwig 668ef6c54c scsi: core: Don't memset() the entire scsi_cmnd in scsi_init_command() 
[ Upstream commit 71bada345b ]

Replace the big fat memset that requires saving and restoring various
fields with just initializing those fields that need initialization.

All the clearing to 0 is moved to scsi_prepare_cmd() as scsi_ioctl_reset()
alreadly uses kzalloc() to allocate a pre-zeroed command.

This is still conservative and can probably be optimized further.

Link: https://lore.kernel.org/r/20220224175552.988286-3-hch@lst.de
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: John Garry <john.garry@huawei.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Stable-dep-of: dce5c4afd0 ("scsi: core: Clear driver private data when retrying request")
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2025-03-13 12:50:55 +01:00
arch x86/cpu/kvm: SRSO: Fix possible missing IBPB on VM-Exit 2025-03-13 12:50:54 +01:00
block partitions: mac: fix handling of bogus partition table 2025-03-13 12:50:41 +01:00
certs certs/blacklist_hashes.c: fix const confusion in certs blacklist 2022-06-22 14:22:01 +02:00
crypto crypto: testmgr - some more fixes to RSA test vectors 2025-03-13 12:50:48 +01:00
Documentation kfence: allow use of a deferrable timer 2025-03-13 12:50:49 +01:00
drivers scsi: core: Don't memset() the entire scsi_cmnd in scsi_init_command() 2025-03-13 12:50:55 +01:00
fs ovl: fix UAF in ovl_dentry_update_reval by moving dput() in ovl_link_up 2025-03-13 12:50:55 +01:00
include net: Add non-RCU dev_getbyhwaddr() helper 2025-03-13 12:50:53 +01:00
init initramfs: avoid filename buffer overrun 2024-12-14 19:50:42 +01:00
io_uring io_uring: fix possible deadlock in io_register_iowq_max_workers() 2024-11-17 15:06:25 +01:00
ipc ipc/sem: Fix dangling sem_array access in semtimedop race 2022-12-08 11:28:45 +01:00
kernel acct: block access to kernel internal filesystems 2025-03-13 12:50:54 +01:00
lib kfence: allow use of a deferrable timer 2025-03-13 12:50:49 +01:00
LICENSES LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes" 2021-07-15 06:31:24 -06:00
mm kfence: skip __GFP_THISNODE allocations on NUMA systems 2025-03-13 12:50:50 +01:00
net drop_monitor: fix incorrect initialization order 2025-03-13 12:50:53 +01:00
samples samples/landlock: Fix possible NULL dereference in parse_path() 2025-03-13 12:49:57 +01:00
scripts kbuild: Move -Wenum-enum-conversion to W=2 2025-03-13 12:50:29 +01:00
security tomoyo: don't emit warning in tomoyo_write_control() 2025-03-13 12:50:18 +01:00
sound ALSA: hda/conexant: Add quirk for HP ProBook 450 G4 mute LED 2025-03-13 12:50:54 +01:00
tools selftests: rtnetlink: update netdevsim ipsec output format 2025-03-13 12:50:46 +01:00
usr usr/include/Makefile: add linux/nfc.h to the compile-test coverage 2022-02-01 17:27:15 +01:00
virt KVM: Fix a data race on last_boosted_vcpu in kvm_vcpu_on_spin() 2024-10-22 15:40:41 +02:00
.clang-format clang-format: Update with the latest for_each macro list 2021-05-12 23:32:39 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.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 Remove *.orig pattern from .gitignore 2024-10-17 15:11:10 +02:00
.mailmap mailmap: add Andrej Shadura 2021-10-18 20:22:03 -10:00
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 trace: Relocate event helper files 2024-04-10 16:19:24 +02:00
Makefile Linux 5.15.178 2025-02-01 18:24:02 +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.