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From: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
To: <broonie@kernel.org>
Cc: <alsa-devel@alsa-project.org>, <lgirdwood@gmail.com>,
	<perex@perex.cz>, <tiwai@suse.com>,
	<yung-chuan.liao@linux.intel.com>, <Basavaraj.Hiregoudar@amd.com>,
	<Sunil-kumar.Dommati@amd.com>, <venkataprasad.potturu@amd.com>,
	<Syed.SabaKareem@amd.com>, <Mario.Limonciello@amd.com>,
	<Richard.Gong@amd.com>, <ckeepax@opensource.cirrus.com>,
	<linux-sound@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Subject: [PATCH 4/4] ASoC: amd: acp: fix card name length warning in SOF SoundWire machine driver
Date: Thu, 10 Sep 2026 21:46:49 +0530	[thread overview]
Message-ID: <20260910161728.1452808-5-Vijendar.Mukunda@amd.com> (raw)
In-Reply-To: <20260910161728.1452808-1-Vijendar.Mukunda@amd.com>

The ALSA snd_card driver[] field is 16 bytes (including the NUL
terminator), leaving 15 usable characters. The SOF framework
prepends a "sof-" prefix when registering the card, so
card->name = "amd-soundwire" becomes driver name "sof-amd-soundwire"
which is 17 characters and overflows the driver[16] buffer, triggering
a kernel warning.

Fix by shortening the card name to "amd-sdw"; the resulting driver
name "sof-amd-sdw" fits within the 15-character limit.

Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
---
 sound/soc/amd/acp/acp-sdw-sof-mach.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/amd/acp/acp-sdw-sof-mach.c b/sound/soc/amd/acp/acp-sdw-sof-mach.c
index e6d545fd665e..ec3e1f5f1052 100644
--- a/sound/soc/amd/acp/acp-sdw-sof-mach.c
+++ b/sound/soc/amd/acp/acp-sdw-sof-mach.c
@@ -390,7 +390,7 @@ static int mc_probe(struct platform_device *pdev)
 	ctx->private = amd_ctx;
 	card = &ctx->card;
 	card->dev = &pdev->dev;
-	card->name = "amd-soundwire";
+	card->name = "amd-sdw";
 	card->owner = THIS_MODULE;
 	card->late_probe = asoc_sdw_card_late_probe;
 
-- 
2.48.1


  parent reply	other threads:[~2026-09-10 16:19 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-10 16:16 [PATCH 0/4] ASoC: amd: acp: SoundWire machine driver fixes Vijendar Mukunda
2026-09-10 16:16 ` [PATCH 1/4] ASoC: amd: acp: bounds-check SoundWire link ID in machine drivers Vijendar Mukunda
2026-09-10 16:16 ` [PATCH 2/4] ASoC: amd: acp: refactor codec config count in SOF SoundWire machine driver Vijendar Mukunda
2026-09-10 16:16 ` [PATCH 3/4] ASoC: amd: acp: fix ffs() operator precedence for SoundWire link ID Vijendar Mukunda
2026-09-10 16:16 ` Vijendar Mukunda [this message]
2026-09-10 16:27 ` [PATCH 0/4] ASoC: amd: acp: SoundWire machine driver fixes Mario Limonciello
2026-09-15 17:02 ` Mark Brown
2026-09-16 19:08 ` Mark Brown

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