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dynamic_debug: Add __dynamic_dev_dbg

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Unlike dynamic_pr_debug, dynamic uses of dev_dbg can not
currently add task_pid/KBUILD_MODNAME/__func__/__LINE__
to selected debug output.

Add a new function similar to dynamic_pr_debug to
optionally emit these prefixes.

Cc: Aloisio Almeida <aloisio.almeida@openbossa.org>
Noticed-by: Aloisio Almeida <aloisio.almeida@openbossa.org>
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Joe Perches 2011-08-11 14:36:21 -04:00 • committed by Greg Kroah-Hartman
parent 25b8a88c10
commit cbc4663552
4 changed files with 54 additions and 4 deletions
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38
lib/dynamic_debug.c
View file

@ -30,6 +30,7 @@
#include <linux/jump_label.h>
#include <linux/hardirq.h>
#include <linux/sched.h>
#include <linux/device.h>
extern struct _ddebug __start___verbose[];
extern struct _ddebug __stop___verbose[];
@ -456,6 +457,43 @@ int __dynamic_pr_debug(struct _ddebug *descriptor, const char *fmt, ...)
}
EXPORT_SYMBOL(__dynamic_pr_debug);
int __dynamic_dev_dbg(struct _ddebug *descriptor,
const struct device *dev, const char *fmt, ...)
{
struct va_format vaf;
va_list args;
int res;
BUG_ON(!descriptor);
BUG_ON(!fmt);
va_start(args, fmt);
vaf.fmt = fmt;
vaf.va = &args;
res = printk(KERN_DEBUG);
if (descriptor->flags & _DPRINTK_FLAGS_INCL_TID) {
if (in_interrupt())
res += printk(KERN_CONT "<intr> ");
else
res += printk(KERN_CONT "[%d] ", task_pid_vnr(current));
}
if (descriptor->flags & _DPRINTK_FLAGS_INCL_MODNAME)
res += printk(KERN_CONT "%s:", descriptor->modname);
if (descriptor->flags & _DPRINTK_FLAGS_INCL_FUNCNAME)
res += printk(KERN_CONT "%s:", descriptor->function);
if (descriptor->flags & _DPRINTK_FLAGS_INCL_LINENO)
res += printk(KERN_CONT "%d ", descriptor->lineno);
res += __dev_printk(KERN_CONT, dev, &vaf);
va_end(args);
return res;
}
EXPORT_SYMBOL(__dynamic_dev_dbg);
static __initdata char ddebug_setup_string[1024];
static __init int ddebug_setup_query(char *str)
{