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.
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
---
include/sound/core.h | 4 ++--
sound/core/device.c | 2 +-
2 files changed, 3 insertions(+), 3 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);
diff --git a/sound/core/device.c b/sound/core/device.c
index 708b91944de3..cdc5af526739 100644
--- a/sound/core/device.c
+++ b/sound/core/device.c
@@ -27,7 +27,7 @@
* Return: Zero if successful, or a negative error code on failure.
*/
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)
{
struct snd_device *dev;
struct list_head *p;
--
2.16.4
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