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Merge branch 'topic/snd-printk' into for-linus

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* topic/snd-printk:
  ALSA: Fixed a typo of printk()
  ALSA: Add debug module option
  ALSA: core - strip too long file names in snd_print*()
This commit is contained in:
Takashi Iwai 2009-09-10 15:33:03 +02:00
commit 9d416811f8
3 changed files with 68 additions and 51 deletions
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77
sound/core/misc.c
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@ -24,6 +24,20 @@
#include <linux/ioport.h>
#include <sound/core.h>
#ifdef CONFIG_SND_DEBUG
#ifdef CONFIG_SND_DEBUG_VERBOSE
#define DEFAULT_DEBUG_LEVEL 2
#else
#define DEFAULT_DEBUG_LEVEL 1
#endif
static int debug = DEFAULT_DEBUG_LEVEL;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "Debug level (0 = disable)");
#endif /* CONFIG_SND_DEBUG */
void release_and_free_resource(struct resource *res)
{
if (res) {
@ -35,46 +49,53 @@ void release_and_free_resource(struct resource *res)
EXPORT_SYMBOL(release_and_free_resource);
#ifdef CONFIG_SND_VERBOSE_PRINTK
void snd_verbose_printk(const char *file, int line, const char *format, ...)
/* strip the leading path if the given path is absolute */
static const char *sanity_file_name(const char *path)
{
va_list args;
if (format[0] == '<' && format[1] >= '0' && format[1] <= '7' && format[2] == '>') {
char tmp[] = "<0>";
tmp[1] = format[1];
printk("%sALSA %s:%d: ", tmp, file, line);
format += 3;
} else {
printk("ALSA %s:%d: ", file, line);
}
va_start(args, format);
vprintk(format, args);
va_end(args);
if (*path == '/')
return strrchr(path, '/') + 1;
else
return path;
}
EXPORT_SYMBOL(snd_verbose_printk);
/* print file and line with a certain printk prefix */
static int print_snd_pfx(unsigned int level, const char *path, int line,
const char *format)
{
const char *file = sanity_file_name(path);
char tmp[] = "<0>";
const char *pfx = level ? KERN_DEBUG : KERN_DEFAULT;
int ret = 0;
if (format[0] == '<' && format[2] == '>') {
tmp[1] = format[1];
pfx = tmp;
ret = 1;
}
printk("%sALSA %s:%d: ", pfx, file, line);
return ret;
}
#else
#define print_snd_pfx(level, path, line, format) 0
#endif
#if defined(CONFIG_SND_DEBUG) && defined(CONFIG_SND_VERBOSE_PRINTK)
void snd_verbose_printd(const char *file, int line, const char *format, ...)
#if defined(CONFIG_SND_DEBUG) || defined(CONFIG_SND_VERBOSE_PRINTK)
void __snd_printk(unsigned int level, const char *path, int line,
const char *format, ...)
{
va_list args;
if (format[0] == '<' && format[1] >= '0' && format[1] <= '7' && format[2] == '>') {
char tmp[] = "<0>";
tmp[1] = format[1];
printk("%sALSA %s:%d: ", tmp, file, line);
format += 3;
} else {
printk(KERN_DEBUG "ALSA %s:%d: ", file, line);
}
#ifdef CONFIG_SND_DEBUG
if (debug < level)
return;
#endif
va_start(args, format);
if (print_snd_pfx(level, path, line, format))
format += 3; /* skip the printk level-prefix */
vprintk(format, args);
va_end(args);
}
EXPORT_SYMBOL(snd_verbose_printd);
EXPORT_SYMBOL_GPL(__snd_printk);
#endif
#ifdef CONFIG_PCI