diff options
| author | Petr Mladek <pmladek@suse.com> | 2019-04-17 13:53:45 +0200 |
|---|---|---|
| committer | Petr Mladek <pmladek@suse.com> | 2019-04-26 16:19:41 +0200 |
| commit | 45c3e93d751ea50861c796da3cbfc848fa6ddf55 (patch) | |
| tree | d039b472da9cbefa14ed11bbeb4d07880af832bc /lib/vsprintf.c | |
| parent | f00cc102b862be688fe090aec30e08d61a8f5e63 (diff) | |
vsprintf: Factor out %pV handler as va_format()
Move the code from the long pointer() function. We are going to improve
error handling that will make it more complicated.
This patch does not change the existing behavior.
Link: http://lkml.kernel.org/r/20190417115350.20479-6-pmladek@suse.com
To: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: "Tobin C . Harding" <me@tobin.cc>
Cc: Joe Perches <joe@perches.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Diffstat (limited to 'lib/vsprintf.c')
| -rw-r--r-- | lib/vsprintf.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/lib/vsprintf.c b/lib/vsprintf.c index 8ca29bc0d786..12b71a4d4613 100644 --- a/lib/vsprintf.c +++ b/lib/vsprintf.c @@ -1520,6 +1520,17 @@ char *escaped_string(char *buf, char *end, u8 *addr, struct printf_spec spec, return buf; } +static char *va_format(char *buf, char *end, struct va_format *va_fmt) +{ + va_list va; + + va_copy(va, *va_fmt->va); + buf += vsnprintf(buf, end > buf ? end - buf : 0, va_fmt->fmt, va); + va_end(va); + + return buf; +} + static noinline_for_stack char *uuid_string(char *buf, char *end, const u8 *addr, struct printf_spec spec, const char *fmt) @@ -2046,15 +2057,7 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr, case 'U': return uuid_string(buf, end, ptr, spec, fmt); case 'V': - { - va_list va; - - va_copy(va, *((struct va_format *)ptr)->va); - buf += vsnprintf(buf, end > buf ? end - buf : 0, - ((struct va_format *)ptr)->fmt, va); - va_end(va); - return buf; - } + return va_format(buf, end, ptr); case 'K': return restricted_pointer(buf, end, ptr, spec); case 'N': |