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printk: Rework parse_prefix into printk_parse_prefix 

parse_prefix is needed externally by later patches, so move it into a
context where it can be used as such. Also give it the printk_ prefix to
reduce the chance of collisions.

Signed-off-by: Chris Down <chris@chrisdown.name>
Cc: Petr Mladek <pmladek@suse.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/b22ba314a860e5c7f887958f1eab2649f9bd1d06.1623775748.git.chris@chrisdown.name
This commit is contained in:
Chris Down 2021-06-15 17:52:51 +01:00 committed by Petr Mladek
parent a1ad4b8a19
commit f3d75cf537
2 changed files with 6 additions and 4 deletions
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2
kernel/printk/internal.h
View File

@ -57,6 +57,8 @@ bool printk_percpu_data_ready(void);
void defer_console_output(void);
u16 printk_parse_prefix(const char *text, int *level,
enum printk_info_flags *flags);
#else
/*

8
kernel/printk/printk.c
View File

@ -1956,7 +1956,7 @@ static inline u32 printk_caller_id(void)
}
/**
* parse_prefix - Parse level and control flags.
* printk_parse_prefix - Parse level and control flags.
*
* @text: The terminated text message.
* @level: A pointer to the current level value, will be updated.
@ -1972,7 +1972,7 @@ static inline u32 printk_caller_id(void)
*
* Return: The length of the parsed level and control flags.
*/
static u16 parse_prefix(char *text, int *level,
u16 printk_parse_prefix(const char *text, int *level,
enum printk_info_flags *flags)
{
u16 prefix_len = 0;
@ -2018,7 +2018,7 @@ static u16 printk_sprint(char *text, u16 size, int facility,
if (facility == 0) {
u16 prefix_len;
prefix_len = parse_prefix(text, NULL, NULL);
prefix_len = printk_parse_prefix(text, NULL, NULL);
if (prefix_len) {
text_len -= prefix_len;
memmove(text, text + prefix_len, text_len);
@ -2067,7 +2067,7 @@ int vprintk_store(int facility, int level,
/* Extract log level or control flags. */
if (facility == 0)
parse_prefix(&prefix_buf[0], &level, &flags);
printk_parse_prefix(&prefix_buf[0], &level, &flags);
if (level == LOGLEVEL_DEFAULT)
level = default_message_loglevel;