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ALSA: compress: Drop unused functions 

snd_compress_register() and snd_compress_deregister() API functions
have been never used by in-tree drivers.
Let's clean up the dead code.

Acked-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20210714162424.4412-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2021-07-14 18:24:23 +02:00
parent 27757876d1
commit fc93c96fe3
2 changed files with 0 additions and 70 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
include/sound/compress_driver.h
View File

@ -165,8 +165,6 @@ struct snd_compr {
}; };
/* compress device register APIs */ /* compress device register APIs */
int snd_compress_register(struct snd_compr *device);
int snd_compress_deregister(struct snd_compr *device);
int snd_compress_new(struct snd_card *card, int device, int snd_compress_new(struct snd_card *card, int device,
int type, const char *id, struct snd_compr *compr); int type, const char *id, struct snd_compr *compr);

68
sound/core/compress_offload.c
View File

@ -47,8 +47,6 @@
* driver should be able to register multiple nodes * driver should be able to register multiple nodes
*/ */
static DEFINE_MUTEX(device_mutex);
struct snd_compr_file { struct snd_compr_file {
unsigned long caps; unsigned long caps;
struct snd_compr_stream stream; struct snd_compr_stream stream;
@ -1193,72 +1191,6 @@ int snd_compress_new(struct snd_card *card, int device,
} }
EXPORT_SYMBOL_GPL(snd_compress_new); EXPORT_SYMBOL_GPL(snd_compress_new);
static int snd_compress_add_device(struct snd_compr *device)
{
int ret;
if (!device->card)
return -EINVAL;
/* register the card */
ret = snd_card_register(device->card);
if (ret)
goto out;
return 0;
out:
pr_err("failed with %d\n", ret);
return ret;
}
static int snd_compress_remove_device(struct snd_compr *device)
{
return snd_card_free(device->card);
}
/**
* snd_compress_register - register compressed device
*
* @device: compressed device to register
*/
int snd_compress_register(struct snd_compr *device)
{
int retval;
if (device->name == NULL || device->ops == NULL)
return -EINVAL;
pr_debug("Registering compressed device %s\n", device->name);
if (snd_BUG_ON(!device->ops->open))
return -EINVAL;
if (snd_BUG_ON(!device->ops->free))
return -EINVAL;
if (snd_BUG_ON(!device->ops->set_params))
return -EINVAL;
if (snd_BUG_ON(!device->ops->trigger))
return -EINVAL;
mutex_init(&device->lock);
/* register a compressed card */
mutex_lock(&device_mutex);
retval = snd_compress_add_device(device);
mutex_unlock(&device_mutex);
return retval;
}
EXPORT_SYMBOL_GPL(snd_compress_register);
int snd_compress_deregister(struct snd_compr *device)
{
pr_debug("Removing compressed device %s\n", device->name);
mutex_lock(&device_mutex);
snd_compress_remove_device(device);
mutex_unlock(&device_mutex);
return 0;
}
EXPORT_SYMBOL_GPL(snd_compress_deregister);
MODULE_DESCRIPTION("ALSA Compressed offload framework"); MODULE_DESCRIPTION("ALSA Compressed offload framework");
MODULE_AUTHOR("Vinod Koul <vinod.koul@linux.intel.com>"); MODULE_AUTHOR("Vinod Koul <vinod.koul@linux.intel.com>");
MODULE_LICENSE("GPL v2"); MODULE_LICENSE("GPL v2");