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

At Fri, 16 Nov 2012 23:35:16 -0800, Joe Perches wrote:

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

Signed-off-by: Joe Perches joe@perches.com

Thanks, applied.

Takashi

---

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;