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authorJulia Lawall <Julia.Lawall@lip6.fr>2016-08-31 23:52:27 +0200
committerMark Brown <broonie@kernel.org>2016-09-01 20:55:31 +0100
commitf802d6c020658b5dce1732da0d5999a1a65afdd6 (patch)
treede881a189a3ea38294e52cad844531cbba0d41b5 /sound/soc/codecs/wm8990.c
parent2c452dd8af9da98b4b0ae1f12f8059160c7b11b5 (diff)
downloadlinux-f802d6c020658b5dce1732da0d5999a1a65afdd6.tar.gz
ASoC: constify snd_soc_codec_driver structures
Check for snd_soc_codec_driver structures that are only passed to
snd_soc_register_codec or memcpy (2nd arg), for which the corresponding
parameters are declared const.  Declare as const snd_soc_codec_driver
structures that have these properties.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r disable optional_qualifier@
identifier i;
position p;
@@
static struct snd_soc_codec_driver i@p = { ... };

@ok@
identifier r.i;
expression e1,e2,e3;
position p;
@@
(
snd_soc_register_codec(e1,&i@p,e2,e3)
|
memcpy(e1,&i@p,e2)
)

@bad@
position p != {r.p,ok.p};
identifier r.i;
@@
i@p

@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
 struct snd_soc_codec_driver i = { ... };
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/wm8990.c')
-rw-r--r--sound/soc/codecs/wm8990.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/soc/codecs/wm8990.c b/sound/soc/codecs/wm8990.c
index a412fd0a2e64..a8945001e696 100644
--- a/sound/soc/codecs/wm8990.c
+++ b/sound/soc/codecs/wm8990.c
@@ -1294,7 +1294,7 @@ static int wm8990_probe(struct snd_soc_codec *codec)
 	return 0;
 }
 
-static struct snd_soc_codec_driver soc_codec_dev_wm8990 = {
+static const struct snd_soc_codec_driver soc_codec_dev_wm8990 = {
 	.probe =	wm8990_probe,
 	.set_bias_level = wm8990_set_bias_level,
 	.suspend_bias_off = true,