linux-kernel - [PATCH v2] media: platform: samsung: s5p-jpeg: replace ternary operator with max()

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Date:   Wed, 18 May 2022 20:08:36 +0800
From:   Guo Zhengkui <guozhengkui@...o.com>
To:     Andrzej Pietrasiewicz <andrzejtp2010@...il.com>,
        Jacek Anaszewski <jacek.anaszewski@...il.com>,
        Sylwester Nawrocki <s.nawrocki@...sung.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-arm-kernel@...ts.infradead.org (moderated list:ARM/SAMSUNG S5P
        SERIES JPEG CODEC SUPPORT),
        linux-media@...r.kernel.org (open list:ARM/SAMSUNG S5P SERIES JPEG
        CODEC SUPPORT), linux-kernel@...r.kernel.org (open list)
Cc:     zhengkui_guo@...look.com, Guo Zhengkui <guozhengkui@...o.com>
Subject: [PATCH v2] media: platform: samsung: s5p-jpeg: replace ternary operator with max()

Fix the following coccicheck warning:

drivers/media/platform/samsung/s5p-jpeg/jpeg-core.c:1712:24-25:
WARNING opportunity for max()

max() macro is defined in include/linux/minmax.h. It avoids multiple
evaluations of the arguments when non-constant and performs strict
type-checking.

Signed-off-by: Guo Zhengkui <guozhengkui@...o.com>
---
v1 -> v2: Change the subject according to Hans Verkuil's suggestion.

 drivers/media/platform/samsung/s5p-jpeg/jpeg-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/platform/samsung/s5p-jpeg/jpeg-core.c b/drivers/media/platform/samsung/s5p-jpeg/jpeg-core.c
index 456287186ad8..55814041b8d8 100644
--- a/drivers/media/platform/samsung/s5p-jpeg/jpeg-core.c
+++ b/drivers/media/platform/samsung/s5p-jpeg/jpeg-core.c
@@ -1709,7 +1709,7 @@ static int exynos3250_jpeg_try_downscale(struct s5p_jpeg_ctx *ctx,
 	w_ratio = ctx->out_q.w / r->width;
 	h_ratio = ctx->out_q.h / r->height;
 
-	scale_factor = w_ratio > h_ratio ? w_ratio : h_ratio;
+	scale_factor = max(w_ratio, h_ratio);
 	scale_factor = clamp_val(scale_factor, 1, 8);
 
 	/* Align scale ratio to the nearest power of 2 */
-- 
2.20.1