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author | 2016-10-15 16:55:46 +0200 | |
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committer | 2016-10-24 18:32:54 +0100 | |
commit | 28549313da65cc8711401ee5466c526bd67de5f1 (patch) | |
tree | 00ac103de1fe4477a4e3e3da93ea6e81ef0ab79a | |
parent | Linux 4.9-rc1 (diff) | |
download | linux-28549313da65cc8711401ee5466c526bd67de5f1.tar.gz linux-28549313da65cc8711401ee5466c526bd67de5f1.tar.bz2 linux-28549313da65cc8711401ee5466c526bd67de5f1.zip |
ASoC: atmel_wm8904: constify snd_soc_ops structures
Check for snd_soc_ops structures that are only stored in the ops field of a
snd_soc_dai_link structure. This field is declared const, so snd_soc_ops
structures that have this property can be declared as const also.
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_ops i@p = { ... };
@ok1@
identifier r.i;
struct snd_soc_dai_link e;
position p;
@@
e.ops = &i@p;
@ok2@
identifier r.i, e;
position p;
@@
struct snd_soc_dai_link e[] = { ..., { .ops = &i@p, }, ..., };
@bad@
position p != {r.p,ok1.p,ok2.p};
identifier r.i;
struct snd_soc_ops e;
@@
e@i@p
@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
struct snd_soc_ops i = { ... };
// </smpl>
The effect on the layout of the .o file is shown by the following output of
the size command, first before then after the transformation:
text data bss dec hex filename
2611 1536 0 4147 1033 sound/soc/atmel/atmel_wm8904.o
2675 1480 0 4155 103b sound/soc/atmel/atmel_wm8904.o
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
-rw-r--r-- | sound/soc/atmel/atmel_wm8904.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/soc/atmel/atmel_wm8904.c b/sound/soc/atmel/atmel_wm8904.c index fdd28ed3e0b9..fbc10f61eb55 100644 --- a/sound/soc/atmel/atmel_wm8904.c +++ b/sound/soc/atmel/atmel_wm8904.c @@ -53,7 +53,7 @@ static int atmel_asoc_wm8904_hw_params(struct snd_pcm_substream *substream, return 0; } -static struct snd_soc_ops atmel_asoc_wm8904_ops = { +static const struct snd_soc_ops atmel_asoc_wm8904_ops = { .hw_params = atmel_asoc_wm8904_hw_params, }; |