Enabling CONFIG_USB_MUSB_DEBUG option causes -DDEBUG to be added to gcc's
command line, however the DBG() macro doesn't depend on DEBUG, so that the
debugging messages get printed regardless of the option, and I don't think
that this was intended. Make xprintk() macro used by DBG() call pr_debug()
which only results in the actual code generated if DEBUG is defined.
This change makes musb_hdrc.o ~30% less in size with CONFIG_USB_MUSB_DEBUG
disabled (in host mode).
Signed-off-by: Sergei Shtylyov <sshtylyov@xxxxxxxxxxxxx>
--
The patch is against the recent Linus' tree.
It has been originally posted on March 30th.
Please consider at least for 2.6.36.
drivers/usb/musb/musb_debug.h | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
Index: linux-2.6/drivers/usb/musb/musb_debug.h
===================================================================
--- linux-2.6.orig/drivers/usb/musb/musb_debug.h
+++ linux-2.6/drivers/usb/musb/musb_debug.h
@@ -42,10 +42,9 @@
#define INFO(fmt, args...) yprintk(KERN_INFO, fmt, ## args)
#define ERR(fmt, args...) yprintk(KERN_ERR, fmt, ## args)
-#define xprintk(level, facility, format, args...) do { \
+#define xprintk(level, format, args...) do { \
if (_dbg_level(level)) { \
- printk(facility "%s %d: " format , \
- __func__, __LINE__ , ## args); \
+ pr_debug("%s %d: " format, __func__, __LINE__, ## args); \
} } while (0)
extern unsigned musb_debug;
@@ -55,7 +54,7 @@ static inline int _dbg_level(unsigned l)
return musb_debug >= l;
}
-#define DBG(level, fmt, args...) xprintk(level, KERN_DEBUG, fmt, ## args)
+#define DBG(level, fmt, args...) xprintk(level, fmt, ## args)
extern const char *otg_state_string(struct musb *);
--
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