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ALSA: core - strip too long file names in snd_print*()

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When modules are built with M= option, they pass long file paths to
__FILE__.  This results in ugly outputs of snd_print*() when
CONFIG_SND_VERBOSE_PRINTK is set.

This patch adds a check of the path and strips the leading path dirs
if the file name is an absolute path to improve the readability of logs.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2009-08-27 12:34:54 +02:00
parent 422bef879e
commit 1b0053a0f0
1 changed files with 12 additions and 2 deletions
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14
sound/core/misc.c
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@ -35,8 +35,17 @@ void release_and_free_resource(struct resource *res)
EXPORT_SYMBOL(release_and_free_resource); EXPORT_SYMBOL(release_and_free_resource);
#ifdef CONFIG_SND_VERBOSE_PRINTK #ifdef CONFIG_SND_VERBOSE_PRINTK
void snd_verbose_printk(const char *file, int line, const char *format, ...) static const char *sanity_file_name(const char *path)
{ {
if (*path == '/')
return strrchr(path, '/') + 1;
else
return path;
}
void snd_verbose_printk(const char *path, int line, const char *format, ...)
{
const char *file = sanity_file_name(path);
va_list args; va_list args;
if (format[0] == '<' && format[1] >= '0' && format[1] <= '7' && format[2] == '>') { if (format[0] == '<' && format[1] >= '0' && format[1] <= '7' && format[2] == '>') {
@ -56,8 +65,9 @@ EXPORT_SYMBOL(snd_verbose_printk);
#endif #endif
#if defined(CONFIG_SND_DEBUG) && defined(CONFIG_SND_VERBOSE_PRINTK) #if defined(CONFIG_SND_DEBUG) && defined(CONFIG_SND_VERBOSE_PRINTK)
void snd_verbose_printd(const char *file, int line, const char *format, ...) void snd_verbose_printd(const char *path, int line, const char *format, ...)
{ {
const char *file = sanity_file_name(path);
va_list args; va_list args;
if (format[0] == '<' && format[1] >= '0' && format[1] <= '7' && format[2] == '>') { if (format[0] == '<' && format[1] >= '0' && format[1] <= '7' && format[2] == '>') {