diff options
| author | Park Ju Hyung <qkrwngud825@gmail.com> | 2016-12-31 05:07:17 +0900 |
|---|---|---|
| committer | Michael Bestas <mkbestas@lineageos.org> | 2019-12-23 23:43:33 +0200 |
| commit | c41564b077479f129fbd3ea8abff8adfb7604b50 (patch) | |
| tree | df476bdf0c6d7adc26a718b5ea8c881f38f72fd5 /include/linux/kernel.h | |
| parent | 425799635358454521ca64d6366b2ccea29bdda0 (diff) | |
trace: add CONFIG_DISABLE_TRACE_PRINTK option
Poorly made kernel trees often use trace_printk() without
properly guarding them in a #ifdef macro.
Such usage of trace_printk() causes a warning at
boot and additional memory allocation.
This option serves to disable those all at once with ease.
Change-Id: I2cb2085f48064bda8c18806597c5aee57237dca6
Signed-off-by: Park Ju Hyung <qkrwngud825@gmail.com>
Signed-off-by: Alex Naidis <alex.naidis@linux.com>
Diffstat (limited to 'include/linux/kernel.h')
| -rw-r--r-- | include/linux/kernel.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 05b63a1e9f84..3098b65177a3 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -605,6 +605,9 @@ do { \ * let gcc optimize the rest. */ +#ifdef CONFIG_DISABLE_TRACE_PRINTK +#define trace_printk pr_debug +#else #define trace_printk(fmt, ...) \ do { \ char _______STR[] = __stringify((__VA_ARGS__)); \ @@ -627,6 +630,7 @@ do { \ else \ __trace_printk(_THIS_IP_, fmt, ##args); \ } while (0) +#endif extern __printf(2, 3) int __trace_bprintk(unsigned long ip, const char *fmt, ...); |