[alsa-devel] [PATCH] sound: use bitmap_weight

Use bitmap_weight to count the total number of bits set in bitmap.

Signed-off-by: Joe Perches joe@perches.com --- sound/usb/endpoint.c | 7 +------ 1 files changed, 1 insertions(+), 6 deletions(-)

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 @@ __exit_unlock: 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;