diff mbox series

ASoC: rt1015: remove possible unused variable `bclk_ms'

Message ID 20210823153323.1297723-1-tzungbi@google.com
State Accepted
Commit d019403a777e9978767d0551fa55f624baf7df09
Headers show
Series ASoC: rt1015: remove possible unused variable `bclk_ms' | expand

Commit Message

Tzung-Bi Shih Aug. 23, 2021, 3:33 p.m. UTC 
bclk_ms is possible unused by using the given config (see [1]).

sound/soc/codecs/rt1015.c:724:2: warning: Value stored to 'bclk_ms' is
never read [clang-analyzer-deadcode.DeadStores]
           bclk_ms = frame_size > 32;
           ^         ~~~~~~~~~~~~~~~

In addition, bclk_ms is meaningless and confusing after applying commit
a5db2ca51367 ("ASoC: rt1015: remove unneeded variables in rt1015_priv").
The "> 32" in the expression looks like a typo but it was not.

Let's remove the confusing variable bclk_ms.

[1]: https://lkml.org/lkml/2021/8/23/305

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
---
For the other two reported files: tas2770.c and wm8731.c, it seems
there is no straightforward way to fix the warning. 

 sound/soc/codecs/rt1015.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)
diff mbox series

Patch

diff --git a/sound/soc/codecs/rt1015.c b/sound/soc/codecs/rt1015.c
index b3e69bf245dd..c0c5952cdff7 100644
--- a/sound/soc/codecs/rt1015.c
+++ b/sound/soc/codecs/rt1015.c
@@ -689,7 +689,7 @@  static int rt1015_hw_params(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_component *component = dai->component;
 	struct rt1015_priv *rt1015 = snd_soc_component_get_drvdata(component);
-	int pre_div, bclk_ms, frame_size, lrck;
+	int pre_div, frame_size, lrck;
 	unsigned int val_len = 0;
 
 	lrck = params_rate(params);
@@ -706,10 +706,7 @@  static int rt1015_hw_params(struct snd_pcm_substream *substream,
 		return -EINVAL;
 	}
 
-	bclk_ms = frame_size > 32;
-
-	dev_dbg(component->dev, "bclk_ms is %d and pre_div is %d for iis %d\n",
-				bclk_ms, pre_div, dai->id);
+	dev_dbg(component->dev, "pre_div is %d for iis %d\n", pre_div, dai->id);
 
 	dev_dbg(component->dev, "lrck is %dHz and pre_div is %d for iis %d\n",
 				lrck, pre_div, dai->id);