On 2016年10月15日 22:55, Julia Lawall wrote:
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
3865 2784 384 7033 1b79 sound/soc/intel/boards/broadwell.o
3929 2720 384 7033 1b79 sound/soc/intel/boards/broadwell.o
Signed-off-by: Julia Lawall <Julia.Lawall@xxxxxxx>
Thanks. That works for me.
Acked-by: Jie Yang <yang.jie@xxxxxxxxx>
thanks,
~Keyon
---
sound/soc/intel/boards/broadwell.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -u -p a/sound/soc/intel/boards/broadwell.c b/sound/soc/intel/boards/broadwell.c
--- a/sound/soc/intel/boards/broadwell.c
+++ b/sound/soc/intel/boards/broadwell.c
@@ -126,7 +126,7 @@ static int broadwell_rt286_hw_params(str
return ret;
}
-static struct snd_soc_ops broadwell_rt286_ops = {
+static const struct snd_soc_ops broadwell_rt286_ops = {
.hw_params = broadwell_rt286_hw_params,
};
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