* [PATCH] sound: use bitmap_weight
[not found] <1353134389-25583-1-git-send-email-akinobu.mita@gmail.com>
@ 2012-11-17 7:35 ` Joe Perches
2012-11-17 10:36 ` Takashi Iwai
0 siblings, 1 reply; 2+ messages in thread
From: Joe Perches @ 2012-11-17 7:35 UTC (permalink / raw)
To: Takashi Iwai; +Cc: Akinobu Mita, alsa-devel, LKML
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;
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] sound: use bitmap_weight
2012-11-17 7:35 ` [PATCH] sound: use bitmap_weight Joe Perches
@ 2012-11-17 10:36 ` Takashi Iwai
0 siblings, 0 replies; 2+ messages in thread
From: Takashi Iwai @ 2012-11-17 10:36 UTC (permalink / raw)
To: Joe Perches; +Cc: Akinobu Mita, alsa-devel, LKML
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;
>
>
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2012-11-17 7:35 ` [PATCH] sound: use bitmap_weight Joe Perches
2012-11-17 10:36 ` Takashi Iwai
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