linux-kernel - [PATCH] drm/sun4i: dsi: Simplify maximum determination in sun6i_dsi_setup

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Message-ID: <8b046033-0f97-49e0-afdd-a3a3a3c23ec4@web.de>
Date: Fri, 28 Feb 2025 18:33:47 +0100
From: Markus Elfring <Markus.Elfring@....de>
To: dri-devel@...ts.freedesktop.org, linux-sunxi@...ts.linux.dev,
 linux-arm-kernel@...ts.infradead.org, Chen-Yu Tsai <wens@...e.org>,
 David Airlie <airlied@...il.com>, Jernej Skrabec <jernej.skrabec@...il.com>,
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
 Maxime Ripard <mripard@...nel.org>, Samuel Holland <samuel@...lland.org>,
 Simona Vetter <simona@...ll.ch>, Thomas Zimmermann <tzimmermann@...e.de>
Cc: LKML <linux-kernel@...r.kernel.org>, kernel-janitors@...r.kernel.org,
 Qasim Ijaz <qasdev00@...il.com>
Subject: [PATCH] drm/sun4i: dsi: Simplify maximum determination in
 sun6i_dsi_setup_timings()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Fri, 28 Feb 2025 18:25:31 +0100

Reduce nested max() calls by a single max3() call in this
function implementation.

This issue was transformed by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c
index c35b70d83e53..7765a29e2ef6 100644
--- a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c
+++ b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c
@@ -597,7 +597,7 @@ static void sun6i_dsi_setup_timings(struct sun6i_dsi *dsi,
 	}

 	/* How many bytes do we need to send all payloads? */
-	bytes = max_t(size_t, max(max(hfp, hblk), max(hsa, hbp)), vblk);
+	bytes = max_t(size_t, max3(hfp, hblk, max(hsa, hbp)), vblk);
 	buffer = kmalloc(bytes, GFP_KERNEL);
 	if (WARN_ON(!buffer))
 		return;
--
2.48.1