linux-stable/kernel/printk
John Ogness 8c9dab2c55 printk: nbcon: Clarify rules of the owner/waiter matching
The functions nbcon_owner_matches() and nbcon_waiter_matches()
use a minimal set of data to determine if a context matches.
The existing kerneldoc and comments were not clear enough and
caused the printk folks to re-prove that the functions are
indeed reliable in all cases.

Update and expand the explanations so that it is clear that the
implementations are sufficient for all cases.

Signed-off-by: John Ogness <john.ogness@linutronix.de>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20240820063001.36405-6-john.ogness@linutronix.de
Signed-off-by: Petr Mladek <pmladek@suse.com>
2024-08-21 14:56:22 +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: Add match_devname_and_update_preferred_console() 2024-07-04 15:41:44 +02:00
index.c kernel/printk/index.c: fix memory leak with using debugfs_lookup() 2023-02-03 10:42:02 +01:00
internal.h printk: Check printk_deferred_enter()/_exit() usage 2024-08-21 14:56:22 +02:00
Makefile Revert "printk: Save console options for add_preferred_console_match()" 2024-06-25 07:58:10 +02:00
nbcon.c printk: nbcon: Clarify rules of the owner/waiter matching 2024-08-21 14:56:22 +02:00
printk_ringbuffer.c printk: ringbuffer: Skip non-finalized records in panic 2024-02-07 17:23:18 +01:00
printk_ringbuffer.h printk: Wait for all reserved records with pr_flush() 2024-02-07 17:23:18 +01:00
printk_safe.c printk: Check printk_deferred_enter()/_exit() usage 2024-08-21 14:56:22 +02:00
printk.c printk: Properly deal with nbcon consoles on seq init 2024-08-21 14:56:22 +02:00
sysctl.c sysctl: treewide: constify the ctl_table argument of proc_handlers 2024-07-24 20:59:29 +02:00