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authorJim Cromie <jim.cromie@gmail.com>2011-12-20 02:11:18 +0400
committerGreg Kroah-Hartman <gregkh@suse.de>2012-01-25 00:46:44 +0400
commitb558c96ffa53f4b3dd52b774e4fb7a52982ab52b (patch)
treec178b95b2f1bb9e146d4f33f287ab37c2dab119a /include/linux/printk.h
parent87e6f968339bcdda56b39572c7e63331192296a0 (diff)
downloadlinux-b558c96ffa53f4b3dd52b774e4fb7a52982ab52b.tar.xz
dynamic_debug: make dynamic-debug supersede DEBUG ccflag
If CONFIG_DYNAMIC_DEBUG is defined, honor it over DEBUG, so that pr_debug()s are controllable, instead of always-on. When DEBUG is also defined, change _DPRINTK_FLAGS_DEFAULT to enable printing by default. Also adding _DPRINTK_FLAGS_INCL_MODNAME would be nice, but there are numerous cases of pr_debug(NAME ": ...), which would result in double printing of module-name. So defer this until things settle. Cc: David Miller <davem@davemloft.net> Cc: Joe Perches <joe@perches.com> Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Signed-off-by: Jason Baron <jbaron@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include/linux/printk.h')
-rw-r--r--include/linux/printk.h8
1 files changed, 4 insertions, 4 deletions
diff --git a/include/linux/printk.h b/include/linux/printk.h
index f0e22f75143f..f9abd9357a0c 100644
--- a/include/linux/printk.h
+++ b/include/linux/printk.h
@@ -180,13 +180,13 @@ extern void dump_stack(void) __cold;
#endif
/* If you are writing a driver, please use dev_dbg instead */
-#if defined(DEBUG)
-#define pr_debug(fmt, ...) \
- printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
-#elif defined(CONFIG_DYNAMIC_DEBUG)
+#if defined(CONFIG_DYNAMIC_DEBUG)
/* dynamic_pr_debug() uses pr_fmt() internally so we don't need it here */
#define pr_debug(fmt, ...) \
dynamic_pr_debug(fmt, ##__VA_ARGS__)
+#elif defined(DEBUG)
+#define pr_debug(fmt, ...) \
+ printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
#else
#define pr_debug(fmt, ...) \
no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)