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Groups > linux.kernel > #1709517

[PATCH 5/9] ALSA: msnd: constify snd_pcm_ops structures

From Arvind Yadav <arvind.yadav.cs@gmail.com>
Newsgroups linux.kernel
Subject [PATCH 5/9] ALSA: msnd: constify snd_pcm_ops structures
Date 2017-08-11 14:00 +0200
Message-ID <udgLE-34p-35@gated-at.bofh.it> (permalink)
References <udgLD-34p-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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snd_pcm_ops are not supposed to change at runtime. All functions
working with snd_pcm_ops provided by <sound/pcm.h> work with
const snd_pcm_ops. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
 sound/isa/msnd/msnd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/isa/msnd/msnd.c b/sound/isa/msnd/msnd.c
index 8109ab3..ae9562c 100644
--- a/sound/isa/msnd/msnd.c
+++ b/sound/isa/msnd/msnd.c
@@ -572,7 +572,7 @@ static int snd_msnd_playback_trigger(struct snd_pcm_substream *substream,
 }
 
 
-static struct snd_pcm_ops snd_msnd_playback_ops = {
+static const struct snd_pcm_ops snd_msnd_playback_ops = {
 	.open =		snd_msnd_playback_open,
 	.close =	snd_msnd_playback_close,
 	.ioctl =	snd_pcm_lib_ioctl,
@@ -669,7 +669,7 @@ static int snd_msnd_capture_hw_params(struct snd_pcm_substream *substream,
 }
 
 
-static struct snd_pcm_ops snd_msnd_capture_ops = {
+static const struct snd_pcm_ops snd_msnd_capture_ops = {
 	.open =		snd_msnd_capture_open,
 	.close =	snd_msnd_capture_close,
 	.ioctl =	snd_pcm_lib_ioctl,
-- 
1.9.1

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Thread

[PATCH 0/9] constify isa snd_pcm_ops structures Arvind Yadav <arvind.yadav.cs@gmail.com> - 2017-08-11 14:00 +0200
  [PATCH 1/9] ALSA: ad1816a: constify snd_pcm_ops structures Arvind Yadav <arvind.yadav.cs@gmail.com> - 2017-08-11 14:00 +0200
  [PATCH 7/9] ALSA: sb16: constify snd_pcm_ops structures Arvind Yadav <arvind.yadav.cs@gmail.com> - 2017-08-11 14:00 +0200
  [PATCH 9/9] ALSA: wss: constify snd_pcm_ops structures Arvind Yadav <arvind.yadav.cs@gmail.com> - 2017-08-11 14:00 +0200
  [PATCH 3/9] ALSA: es18xx: constify snd_pcm_ops structures Arvind Yadav <arvind.yadav.cs@gmail.com> - 2017-08-11 14:00 +0200
  [PATCH 5/9] ALSA: msnd: constify snd_pcm_ops structures Arvind Yadav <arvind.yadav.cs@gmail.com> - 2017-08-11 14:00 +0200
  [PATCH 4/9] ALSA: gus: constify snd_pcm_ops structures Arvind Yadav <arvind.yadav.cs@gmail.com> - 2017-08-11 14:10 +0200
  [PATCH 2/9] ALSA: es1688: constify snd_pcm_ops structures Arvind Yadav <arvind.yadav.cs@gmail.com> - 2017-08-11 14:10 +0200
  Re: [PATCH 0/9] constify isa snd_pcm_ops structures Takashi Iwai <tiwai@suse.de> - 2017-08-12 23:50 +0200

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