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ALSA: rawmidi: Add const to snd_rawmidi_ops

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Make snd_rawmidi_substream.ops to be a const pointer to be safer and
allow more optimization.  The patches to constify each rawmidi ops
will follow.

Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2017-01-05 17:01:14 +01:00
parent 46a049dae7
commit 6ba79b8532
2 changed files with 3 additions and 3 deletions
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4
include/sound/rawmidi.h
View File

@ -103,7 +103,7 @@ struct snd_rawmidi_substream {
struct snd_rawmidi_runtime *runtime;
struct pid *pid;
/* hardware layer */
struct snd_rawmidi_ops *ops;
const struct snd_rawmidi_ops *ops;
};
struct snd_rawmidi_file {
@ -155,7 +155,7 @@ int snd_rawmidi_new(struct snd_card *card, char *id, int device,
int output_count, int input_count,
struct snd_rawmidi **rmidi);
void snd_rawmidi_set_ops(struct snd_rawmidi *rmidi, int stream,
struct snd_rawmidi_ops *ops);
const struct snd_rawmidi_ops *ops);
/* callbacks */

2
sound/core/rawmidi.c
View File

@ -1749,7 +1749,7 @@ static int snd_rawmidi_dev_disconnect(struct snd_device *device)
* Sets the rawmidi operators for the given stream direction.
*/
void snd_rawmidi_set_ops(struct snd_rawmidi *rmidi, int stream,
struct snd_rawmidi_ops *ops)
const struct snd_rawmidi_ops *ops)
{
struct snd_rawmidi_substream *substream;