ALSA: usb-audio: use bitmap_weight
Use bitmap_weight to count the total number of bits set in bitmap.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c
index 34de6f2..51a9aa3 100644
--- a/sound/usb/endpoint.c
+++ b/sound/usb/endpoint.c
@@ -485,15 +485,10 @@
static int wait_clear_urbs(struct snd_usb_endpoint *ep)
{
unsigned long end_time = jiffies + msecs_to_jiffies(1000);
- unsigned int i;
int alive;
do {
- alive = 0;
- for (i = 0; i < ep->nurbs; i++)
- if (test_bit(i, &ep->active_mask))
- alive++;
-
+ alive = bitmap_weight(&ep->active_mask, ep->nurbs);
if (!alive)
break;