diff options
| author | Joe Perches <joe@perches.com> | 2013-04-16 22:44:07 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-04-17 10:01:22 -0700 |
| commit | 75b9130e8af64c6878a1aa396a8446f3ce2cfb49 (patch) | |
| tree | 64337c23d416ce01c1ac2449143c478ad7379704 /drivers/usb/storage/debug.h | |
| parent | 61ac6ac8d662ac7ac67c864954d39d1b19948354 (diff) | |
usb: storage: Add usb_stor_dbg, reduce object size
Reduce the size of the objects by consolidating
the duplicated USB_STORAGE into a single function.
Add function usb_stor_dbg to emit debugging messages.
Always validate the format and arguments.
Reduce the number of uses of CONFIG_USB_STORAGE_DEBUG.
Reduces size of objects ~7KB when CONFIG_USB_STORAGE_DEBUG
is set.
$ size drivers/usb/storage/built-in.o*
text data bss dec hex filename
140133 55296 70312 265741 40e0d drivers/usb/storage/built-in.o.new
147494 55248 70296 273038 42a8e drivers/usb/storage/built-in.o.old
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/storage/debug.h')
| -rw-r--r-- | drivers/usb/storage/debug.h | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/usb/storage/debug.h b/drivers/usb/storage/debug.h index dbb985d52423..d4280e1541a3 100644 --- a/drivers/usb/storage/debug.h +++ b/drivers/usb/storage/debug.h @@ -50,12 +50,16 @@ void usb_stor_show_command(struct scsi_cmnd *srb); void usb_stor_show_sense( unsigned char key, unsigned char asc, unsigned char ascq ); -#define US_DEBUGP(x...) printk( KERN_DEBUG USB_STORAGE x ) -#define US_DEBUGPX(x...) printk( x ) -#define US_DEBUG(x) x +__printf(1, 2) int usb_stor_dbg(const char *fmt, ...); + +#define US_DEBUGP(fmt, ...) usb_stor_dbg(fmt, ##__VA_ARGS__) +#define US_DEBUGPX(fmt, ...) printk(fmt, ##__VA_ARGS__) +#define US_DEBUG(x) x #else -#define US_DEBUGP(x...) -#define US_DEBUGPX(x...) +#define US_DEBUGP(fmt, ...) \ + do { if (0) printk(fmt, ##__VA_ARGS__); } while (0) +#define US_DEBUGPX(fmt, ...) \ + do { if (0) printk(fmt, ##__VA_ARGS__); } while (0) #define US_DEBUG(x) #endif |