linux

iv/linux

History

John Ogness 5113cf5f4c printk: ringbuffer: Clarify special lpos values

For empty line records, no data blocks are created. Instead,
these valid records are identified by special logical position
values (in fields of @prb_desc.text_blk_lpos).

Currently the macro NO_LPOS is used for empty line records.
This name is confusing because it does not imply _why_ there is
no data block.

Rename NO_LPOS to EMPTY_LINE_LPOS so that it is clear why there
is no data block.

Also add comments explaining the use of EMPTY_LINE_LPOS as well
as clarification to the values used to represent data-less
blocks.

Signed-off-by: John Ogness <john.ogness@linutronix.de>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20240207134103.1357162-6-john.ogness@linutronix.de
Signed-off-by: Petr Mladek <pmladek@suse.com>

2024-02-07 17:23:18 +01:00

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()