From 6769e988b0062bf8d63d35b0fdbb47b385dd3252 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Fri, 2 Sep 2016 00:13:10 +0200 Subject: 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/) // @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 = { ... }; // Signed-off-by: Julia Lawall Signed-off-by: Takashi Iwai --- sound/pci/cs4281.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'sound/pci/cs4281.c') diff --git a/sound/pci/cs4281.c b/sound/pci/cs4281.c index c296fd0dbc9c..615d8a99d8c8 100644 --- a/sound/pci/cs4281.c +++ b/sound/pci/cs4281.c @@ -951,7 +951,7 @@ static int snd_cs4281_capture_close(struct snd_pcm_substream *substream) return 0; } -static struct snd_pcm_ops snd_cs4281_playback_ops = { +static const struct snd_pcm_ops snd_cs4281_playback_ops = { .open = snd_cs4281_playback_open, .close = snd_cs4281_playback_close, .ioctl = snd_pcm_lib_ioctl, @@ -962,7 +962,7 @@ static struct snd_pcm_ops snd_cs4281_playback_ops = { .pointer = snd_cs4281_pointer, }; -static struct snd_pcm_ops snd_cs4281_capture_ops = { +static const struct snd_pcm_ops snd_cs4281_capture_ops = { .open = snd_cs4281_capture_open, .close = snd_cs4281_capture_close, .ioctl = snd_pcm_lib_ioctl, -- cgit