linux-kernel - [PATCH] drm/dp_mst: Simplify character output in drm_dp_mst_dump

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Message-ID: <af602b2e-4d92-4c54-9884-7db84700aa93@web.de>
Date: Mon, 15 Jul 2024 13:26:20 +0200
From: Markus Elfring <Markus.Elfring@....de>
To: dri-devel@...ts.freedesktop.org, kernel-janitors@...r.kernel.org,
 Christophe Jaillet <christophe.jaillet@...adoo.fr>,
 Daniel Vetter <daniel@...ll.ch>, David Airlie <airlied@...il.com>,
 Imre Deak <imre.deak@...el.com>, Jani Nikula <jani.nikula@...el.com>,
 Lyude Paul <lyude@...hat.com>,
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
 Ville Syrjälä <ville.syrjala@...ux.intel.com>,
 Wayne Lin <Wayne.Lin@....com>
Cc: LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] drm/dp_mst: Simplify character output in
 drm_dp_mst_dump_topology()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Mon, 15 Jul 2024 13:12:10 +0200

Single characters should be put into a sequence.
Thus use the corresponding function “seq_putc” for one selected call.

This issue was transformed by using the Coccinelle software.

Suggested-by: Christophe Jaillet <christophe.jaillet@...adoo.fr>
Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 drivers/gpu/drm/display/drm_dp_mst_topology.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/display/drm_dp_mst_topology.c b/drivers/gpu/drm/display/drm_dp_mst_topology.c
index fc2ceae61db2..65c1700f3e40 100644
--- a/drivers/gpu/drm/display/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/display/drm_dp_mst_topology.c
@@ -4963,7 +4963,7 @@ void drm_dp_mst_dump_topology(struct seq_file *m,
 		seq_printf(m, "branch oui: %*phN devid: ", 3, buf);

 		for (i = 0x3; i < 0x8 && buf[i]; i++)
-			seq_printf(m, "%c", buf[i]);
+			seq_putc(m, buf[i]);
 		seq_printf(m, " revision: hw: %x.%x sw: %x.%x\n",
 			   buf[0x9] >> 4, buf[0x9] & 0xf, buf[0xa], buf[0xb]);
 		if (dump_dp_payload_table(mgr, buf))
--
2.45.2