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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 <[email protected]> Reviewed-by: Peter Ujfalusi <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Takashi Iwai <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
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@@ -47,8 +47,6 @@ | |
| * driver should be able to register multiple nodes | ||
| */ | ||
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| static DEFINE_MUTEX(device_mutex); | ||
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| struct snd_compr_file { | ||
| unsigned long caps; | ||
| struct snd_compr_stream stream; | ||
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@@ -1193,72 +1191,6 @@ int snd_compress_new(struct snd_card *card, int device, | |
| } | ||
| EXPORT_SYMBOL_GPL(snd_compress_new); | ||
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| static int snd_compress_add_device(struct snd_compr *device) | ||
| { | ||
| int ret; | ||
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| if (!device->card) | ||
| return -EINVAL; | ||
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| /* register the card */ | ||
| ret = snd_card_register(device->card); | ||
| if (ret) | ||
| goto out; | ||
| return 0; | ||
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| out: | ||
| pr_err("failed with %d\n", ret); | ||
| return ret; | ||
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| } | ||
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| static int snd_compress_remove_device(struct snd_compr *device) | ||
| { | ||
| return snd_card_free(device->card); | ||
| } | ||
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| /** | ||
| * snd_compress_register - register compressed device | ||
| * | ||
| * @device: compressed device to register | ||
| */ | ||
| int snd_compress_register(struct snd_compr *device) | ||
| { | ||
| int retval; | ||
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| if (device->name == NULL || device->ops == NULL) | ||
| return -EINVAL; | ||
|
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| 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; | ||
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| mutex_init(&device->lock); | ||
|
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| /* 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); | ||
|
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| 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); | ||
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| MODULE_DESCRIPTION("ALSA Compressed offload framework"); | ||
| MODULE_AUTHOR("Vinod Koul <[email protected]>"); | ||
| MODULE_LICENSE("GPL v2"); | ||