jsauer/torvalds-linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-01-11 17:10:13 +00:00
Code

vsnprintf: Silence false positive GCC warning for va_format()

Browse Source 
va_format() is using vsnprintf(), and GCC compiler (Debian 14.2.0-17)
is not happy about this:

lib/vsprintf.c:1704:9: error: function ‘va_format’ might be a candidate for ‘gnu_print ’ format attribute [-Werror=suggest-attribute=format]

Fix the compilation errors (`make W=1` when CONFIG_WERROR=y, which is default)
by silencing the false positive GCC warning.

Suggested-by: Rasmus Villemoes <ravi@prevas.dk>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Kees Cook <kees@kernel.org>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20250321144822.324050-7-andriy.shevchenko@linux.intel.com
Signed-off-by: Petr Mladek <pmladek@suse.com>
This commit is contained in:
Andy Shevchenko 2025-03-21 16:40:52 +02:00 committed by Petr Mladek
parent a1aea76a4a
commit bd67c1c3c3
1 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
lib/vsprintf.c
View File

@ -1699,6 +1699,10 @@ char *escaped_string(char *buf, char *end, u8 *addr, struct printf_spec spec,
return buf;
}
#pragma GCC diagnostic push
#ifndef __clang__
#pragma GCC diagnostic ignored "-Wsuggest-attribute=format"
#endif
static char *va_format(char *buf, char *end, struct va_format *va_fmt,
struct printf_spec spec)
{
@ -1713,6 +1717,7 @@ static char *va_format(char *buf, char *end, struct va_format *va_fmt,
return buf;
}
#pragma GCC diagnostic pop
static noinline_for_stack
char *uuid_string(char *buf, char *end, const u8 *addr,