linux-kernel - [PATCH] ASoC: Intel: Skylake: remove redundant re-assignments to pointer array

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Date:   Tue, 14 Jun 2022 19:38:09 +0100
From:   Colin Ian King <colin.i.king@...il.com>
To:     Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
        Liam Girdwood <liam.r.girdwood@...ux.intel.com>,
        Peter Ujfalusi <peter.ujfalusi@...ux.intel.com>,
        Bard Liao <yung-chuan.liao@...ux.intel.com>,
        Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>,
        Kai Vehmanen <kai.vehmanen@...ux.intel.com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>, alsa-devel@...a-project.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] ASoC: Intel: Skylake: remove redundant re-assignments to pointer array

There are two occurrences where the pointer array is being assigned a value
that is never read, the pointer gets updated in the next iteration of a
loop. These assignments are redundant and can be removed.

Cleans up clang scan-build warnings:
sound/soc/intel/skylake/skl-topology.c:2953:3: warning: Value stored to
'array' is never read [deadcode.DeadStores]
sound/soc/intel/skylake/skl-topology.c:3602:3: warning: Value stored to
'array' is never read [deadcode.DeadStores]

Signed-off-by: Colin Ian King <colin.i.king@...il.com>
---
 sound/soc/intel/skylake/skl-topology.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/sound/soc/intel/skylake/skl-topology.c b/sound/soc/intel/skylake/skl-topology.c
index 9bdf020a2b64..e06eac592da1 100644
--- a/sound/soc/intel/skylake/skl-topology.c
+++ b/sound/soc/intel/skylake/skl-topology.c
@@ -2950,9 +2950,6 @@ static int skl_tplg_get_pvt_data(struct snd_soc_tplg_dapm_widget *tplg_w,
 		block_size = ret;
 		off += array->size;
 
-		array = (struct snd_soc_tplg_vendor_array *)
-			(tplg_w->priv.data + off);
-
 		data = (tplg_w->priv.data + off);
 
 		if (block_type == SKL_TYPE_TUPLE) {
@@ -3599,9 +3596,6 @@ static int skl_tplg_get_manifest_data(struct snd_soc_tplg_manifest *manifest,
 		block_size = ret;
 		off += array->size;
 
-		array = (struct snd_soc_tplg_vendor_array *)
-			(manifest->priv.data + off);
-
 		data = (manifest->priv.data + off);
 
 		if (block_type == SKL_TYPE_TUPLE) {
-- 
2.35.3