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authorTakashi Iwai <tiwai@suse.de>2020-01-03 09:16:19 +0100
committerTakashi Iwai <tiwai@suse.de>2020-01-03 09:23:50 +0100
commit8b575824304dd18a90616cbcf0f81ca1ed1fb5d2 (patch)
treed1c492e263fb25a53d8c930b2620389827344c1c /include/sound/core.h
parent2ead9d087fe2eafecf801dd2ab83bdb66dc08ced (diff)
downloadlinux-8b575824304dd18a90616cbcf0f81ca1ed1fb5d2.tar.bz2
ALSA: core: Treat snd_device_ops as const
This is a preliminary patch to allow const for snd_device_ops definitions in each driver's code. The ops reference is read-only, hence it can be declared as const for further optimization. There should be no functional changes by this patch. Link: https://lore.kernel.org/r/20200103081714.9560-4-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'include/sound/core.h')
-rw-r--r--include/sound/core.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/sound/core.h b/include/sound/core.h
index af3dce956c17..0e14b7a3e67b 100644
--- a/include/sound/core.h
+++ b/include/sound/core.h
@@ -69,7 +69,7 @@ struct snd_device {
enum snd_device_state state; /* state of the device */
enum snd_device_type type; /* device type */
void *device_data; /* device structure */
- struct snd_device_ops *ops; /* operations */
+ const struct snd_device_ops *ops; /* operations */
};
#define snd_device(n) list_entry(n, struct snd_device, list)
@@ -256,7 +256,7 @@ static inline void snd_card_unref(struct snd_card *card)
/* device.c */
int snd_device_new(struct snd_card *card, enum snd_device_type type,
- void *device_data, struct snd_device_ops *ops);
+ void *device_data, const struct snd_device_ops *ops);
int snd_device_register(struct snd_card *card, void *device_data);
int snd_device_register_all(struct snd_card *card);
void snd_device_disconnect(struct snd_card *card, void *device_data);