[PATCH 05/10] exynos4-is: Replace "hweight32(mask) == 1" with "is_power_of_2(mask)"

Path	csiph.com!eternal-september.org!feeder.eternal-september.org!aioe.org!bofh.it!news.nic.it!robomod
From	Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>
Newsgroups	linux.kernel
Subject	[PATCH 05/10] exynos4-is: Replace "hweight32(mask) == 1" with "is_power_of_2(mask)"
Date	Sun, 06 Dec 2015 11:50:01 +0100
Message-ID	<qCF3b-5NB-1@gated-at.bofh.it> (permalink)
X-Original-To	kyungmin.park@samsung.com, s.nawrocki@samsung.com, mchehab@osg.samsung.com, kgene@kernel.org, k.kozlowski@samsung.com, linux-media@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org
Dkim-Signature	v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id; bh=bCIbfc8wx9y+M6mna/oh36xteBffdqSgV1aweysLQuY=; b=qBdQhiyhK7vqH9sWkJuKAFTKfJ7eDiF2YbbxIg+XXd0XZhg/7280LbATR17ioxKpxm 0g55pnC3l6h10jIhwUTQxRNELiK7f966CGcoL2RsCWe9jAOqEWWQk1FQrt+tve1Dls3D 8AE6nzviqGqqXewmGMMYGHDh/CAUs73TW5AlLdi9DH5Qsrv5cTaUHyGtUBR8dqFN+tho h1MvaCM3z7oQJFZJmcEMF5xfJM2Gy0rDWGIreVsZ9NWFdw2aEycLyW0bUF2PIn36Lyu9 VEb19jRBbjCz+Hol6GsQDxZvL7vBZjnMx6OxyA2O7pos0mxE3xBXMwRXn/3Vw7eDyUY3 WYVg==
X-Received	by 10.98.73.133 with SMTP id r5mr34510970pfi.160.1449398780561; Sun, 06 Dec 2015 02:46:20 -0800 (PST)
X-Mailer	git-send-email 2.5.0
Sender	robomod@news.nic.it
List-ID	<linux-kernel.vger.kernel.org>
X-Mailing-List	linux-kernel@vger.kernel.org
Approved	robomod@news.nic.it
Lines	36
Organization	linux.* mail to news gateway
X-Original-Cc	linux-kernel@vger.kernel.org, Zeng Zhaoxiu <zhaoxiu.zeng@gmail.com>
X-Original-Date	Sun, 6 Dec 2015 18:44:29 +0800
X-Original-Message-ID	<1449398669-14507-1-git-send-email-zhaoxiu.zeng@gmail.com>
X-Original-Sender	linux-kernel-owner@vger.kernel.org
Xref	csiph.com linux.kernel:1284846

Show key headers only | View raw

From: Zeng Zhaoxiu <zhaoxiu.zeng@gmail.com>

Signed-off-by: Zeng Zhaoxiu <zhaoxiu.zeng@gmail.com>
---
 drivers/media/platform/exynos4-is/fimc-is-regs.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/exynos4-is/fimc-is-regs.c b/drivers/media/platform/exynos4-is/fimc-is-regs.c
index cfe4406..ec75a24 100644
--- a/drivers/media/platform/exynos4-is/fimc-is-regs.c
+++ b/drivers/media/platform/exynos4-is/fimc-is-regs.c
@@ -11,6 +11,7 @@
  * published by the Free Software Foundation.
  */
 #include <linux/delay.h>
+#include <linux/log2.h>
 
 #include "fimc-is.h"
 #include "fimc-is-command.h"
@@ -107,7 +108,7 @@ int fimc_is_hw_get_params(struct fimc_is *is, unsigned int num_args)
 
 void fimc_is_hw_set_isp_buf_mask(struct fimc_is *is, unsigned int mask)
 {
-	if (hweight32(mask) == 1) {
+	if (is_power_of_2(mask)) {
 		dev_err(&is->pdev->dev, "%s(): not enough buffers (mask %#x)\n",
 							__func__, mask);
 		return;
-- 
2.5.0

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next | Find similar | Unroll thread

Thread

[PATCH 05/10] exynos4-is: Replace "hweight32(mask) == 1" with "is_power_of_2(mask)" Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com> - 2015-12-06 11:50 +0100

csiph-web