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.c | |
| parent | 61ac6ac8d662ac7ac67c864954d39d1b19948354 (diff) | |
| download | linux-75b9130e8af64c6878a1aa396a8446f3ce2cfb49.tar.gz | |
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.c')
| -rw-r--r-- | drivers/usb/storage/debug.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/drivers/usb/storage/debug.c b/drivers/usb/storage/debug.c index a2b5526c9fa09..b428129526c17 100644 --- a/drivers/usb/storage/debug.c +++ b/drivers/usb/storage/debug.c @@ -150,7 +150,7 @@ void usb_stor_show_command(struct scsi_cmnd *srb) default: what = "(unknown command)"; break; } US_DEBUGP("Command %s (%d bytes)\n", what, srb->cmd_len); - US_DEBUGP(""); + US_DEBUGP("bytes: "); for (i = 0; i < srb->cmd_len && i < 16; i++) US_DEBUGPX(" %02x", srb->cmnd[i]); US_DEBUGPX("\n"); @@ -175,3 +175,21 @@ void usb_stor_show_sense( US_DEBUGPX(what, ascq); US_DEBUGPX("\n"); } + +int usb_stor_dbg(const char *fmt, ...) +{ + struct va_format vaf; + va_list args; + int r; + + va_start(args, fmt); + + vaf.fmt = fmt; + vaf.va = &args; + + r = printk(KERN_DEBUG USB_STORAGE "%pV", &vaf); + + va_end(args); + + return r; +} |