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linux-stable/kernel/printk
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Stanislav Kinsburskii bee43904dc printk: Remove obsoleted check for non-existent "user" object 
The original check for non-null "user" object was introduced by commit
e11fea92e1 ("kmsg: export printk records to the /dev/kmsg interface")
when "user" could be NULL if /dev/ksmg was opened for writing.

Subsequent change 750afe7bab ("printk: add kernel parameter to control
writes to /dev/kmsg") made "user" context required for files opened for
write, but didn't remove now redundant checks for it to be non-NULL.

This patch removes the dead code while preserving the current logic.

Signed-off-by: Stanislav Kinsburskii <stanislav.kinsburski@gmail.com>
CC: Petr Mladek <pmladek@suse.com>
CC: Sergey Senozhatsky <senozhatsky@chromium.org>
CC: Steven Rostedt <rostedt@goodmis.org>
CC: John Ogness <john.ogness@linutronix.de>
CC: linux-kernel@vger.kernel.org
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/167929571877.2810.9926967619100618792.stgit@skinsburskii.localdomain
2023-04-03 12:05:17 +02:00
..
braille.c printk: Replace strncmp() with str_has_prefix() 2019-08-16 09:54:08 +02:00
braille.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
console_cmdline.h printk: Fix preferred console selection with multiple matches 2020-02-18 09:34:42 +01:00
index.c kernel/printk/index.c: fix memory leak with using debugfs_lookup() 2023-02-03 10:42:02 +01:00
internal.h printk: adjust string limit macros 2023-01-11 15:35:12 +01:00
Makefile printk: move printk sysctl to printk/sysctl.c 2022-01-22 08:33:35 +02:00
printk.c printk: Remove obsoleted check for non-existent "user" object 2023-04-03 12:05:17 +02:00
printk_ringbuffer.c printk: fix a typo of comment 2022-11-22 12:10:15 +01:00
printk_ringbuffer.h printk: ringbuffer: Improve prb_next_seq() performance 2022-01-26 16:00:32 +01:00
printk_safe.c Revert "printk: Wait for the global console lock when the system is going down" 2022-06-23 18:41:40 +02:00
sysctl.c printk: Fix incorrect __user type in proc_dointvec_minmax_sysadmin() 2022-02-03 11:27:38 -08:00