linux-kernel - [PATCH 04/14] ASoC: SOF: Constify stored pointer to snd_sof_dsp

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Message-Id: <20240414-n-const-ops-var-v1-4-8f53ee5d981c@kernel.org>
Date: Sun, 14 Apr 2024 20:47:29 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>, 
 Liam Girdwood <lgirdwood@...il.com>, 
 Peter Ujfalusi <peter.ujfalusi@...ux.intel.com>, 
 Bard Liao <yung-chuan.liao@...ux.intel.com>, 
 Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>, 
 Daniel Baluta <daniel.baluta@....com>, 
 Kai Vehmanen <kai.vehmanen@...ux.intel.com>, 
 Mark Brown <broonie@...nel.org>, Jaroslav Kysela <perex@...ex.cz>, 
 Takashi Iwai <tiwai@...e.com>, Shawn Guo <shawnguo@...nel.org>, 
 Sascha Hauer <s.hauer@...gutronix.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Fabio Estevam <festevam@...il.com>, 
 Matthias Brugger <matthias.bgg@...il.com>, 
 AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Cc: sound-open-firmware@...a-project.org, linux-sound@...r.kernel.org, 
 linux-kernel@...r.kernel.org, imx@...ts.linux.dev, 
 linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org, 
 Krzysztof Kozlowski <krzk@...nel.org>
Subject: [PATCH 04/14] ASoC: SOF: Constify stored pointer to
 snd_sof_dsp_ops

The core code does not modify the 'struct snd_sof_dsp_ops', stored in
'struct sof_dev_desc'.  Make the pointer to 'struct snd_sof_dsp_ops'
const to annotate this, make code a bit safer and allow individual
drivers to also define this structure as const.

Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>
---
 include/sound/sof.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/sound/sof.h b/include/sound/sof.h
index 05213bb515a3..780c1a755917 100644
--- a/include/sound/sof.h
+++ b/include/sound/sof.h
@@ -166,7 +166,7 @@ struct sof_dev_desc {
 	/* default firmware name */
 	const char *default_fw_filename[SOF_IPC_TYPE_COUNT];
 
-	struct snd_sof_dsp_ops *ops;
+	const struct snd_sof_dsp_ops *ops;
 	int (*ops_init)(struct snd_sof_dev *sdev);
 	void (*ops_free)(struct snd_sof_dev *sdev);
 };

-- 
2.34.1