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From: Joe Perches <joe@perches.com>
To: Takashi Iwai <tiwai@suse.de>
Cc: Akinobu Mita <akinobu.mita@gmail.com>,
	alsa-devel@alsa-project.org, LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH] sound: use bitmap_weight
Date: Fri, 16 Nov 2012 23:35:16 -0800	[thread overview]
Message-ID: <1353137716.12430.3.camel@joe-AO722> (raw)
In-Reply-To: <1353134389-25583-1-git-send-email-akinobu.mita@gmail.com>

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;
 



WARNING: multiple messages have this Message-ID (diff)
From: Joe Perches <joe@perches.com>
To: Takashi Iwai <tiwai@suse.de>
Cc: alsa-devel@alsa-project.org,
	Akinobu Mita <akinobu.mita@gmail.com>,
	LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH] sound: use bitmap_weight
Date: Fri, 16 Nov 2012 23:35:16 -0800	[thread overview]
Message-ID: <1353137716.12430.3.camel@joe-AO722> (raw)
In-Reply-To: <1353134389-25583-1-git-send-email-akinobu.mita@gmail.com>

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;
 

  reply	other threads:[~2012-11-17  7:35 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-11-17  6:39 [PATCH] sctp: use bitmap_weight Akinobu Mita
2012-11-17  6:39 ` Akinobu Mita
2012-11-17  7:35 ` Joe Perches [this message]
2012-11-17  7:35   ` [PATCH] sound: " Joe Perches
2012-11-17 10:36   ` Takashi Iwai
2012-11-18  1:45 ` [PATCH] sctp: " Vlad Yasevich
2012-11-18  1:45   ` Vlad Yasevich
2012-11-18  3:01   ` David Miller
2012-11-18  3:01     ` David Miller

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