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author | Julia Lawall <Julia.Lawall@lip6.fr> | 2016-09-02 00:13:10 +0200 |
---|---|---|
committer | Takashi Iwai <tiwai@suse.de> | 2016-09-02 11:49:10 +0200 |
commit | 6769e988b0062bf8d63d35b0fdbb47b385dd3252 (patch) | |
tree | a45f07972e30404bb3f489a9631fbe31b8765ac8 /sound/pci/hda | |
parent | ALSA: cs5535audio: constify snd_pcm_ops structures (diff) | |
download | linux-6769e988b0062bf8d63d35b0fdbb47b385dd3252.tar.xz linux-6769e988b0062bf8d63d35b0fdbb47b385dd3252.zip |
ALSA: constify snd_pcm_ops structures
Check for snd_pcm_ops structures that are only stored in the ops field of a
snd_soc_platform_driver structure or passed as the third argument to
snd_pcm_set_ops. The corresponding field or parameter is declared const,
so snd_pcm_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_pcm_ops i@p = { ... };
@ok1@
identifier r.i;
struct snd_soc_platform_driver e;
position p;
@@
e.ops = &i@p;
@ok2@
identifier r.i;
expression e1, e2;
position p;
@@
snd_pcm_set_ops(e1, e2, &i@p)
@bad@
position p != {r.p,ok1.p,ok2.p};
identifier r.i;
struct snd_pcm_ops e;
@@
e@i@p
@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
struct snd_pcm_ops i = { ... };
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda')
-rw-r--r-- | sound/pci/hda/hda_controller.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/pci/hda/hda_controller.c b/sound/pci/hda/hda_controller.c index 2ad3b447483f..500878556578 100644 --- a/sound/pci/hda/hda_controller.c +++ b/sound/pci/hda/hda_controller.c @@ -696,7 +696,7 @@ static int azx_pcm_mmap(struct snd_pcm_substream *substream, return snd_pcm_lib_default_mmap(substream, area); } -static struct snd_pcm_ops azx_pcm_ops = { +static const struct snd_pcm_ops azx_pcm_ops = { .open = azx_pcm_open, .close = azx_pcm_close, .ioctl = snd_pcm_lib_ioctl, |