ALSA: pcm: Drop PCM vmalloc buffer helpers

As the last-standing user of PCM vmalloc buffer helper API took its
own buffer management, we can finally drop those API functions, which
were leftover after reorganization of ALSA memalloc code.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20240807152725.18948-3-tiwai@suse.de

1 files changed, 0 insertions, 42 deletions

diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index 384032b6c59c..732121b934fd 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -1358,48 +1358,6 @@ snd_pcm_set_fixed_buffer_all(struct snd_pcm *pcm, int type,
 	return snd_pcm_set_managed_buffer_all(pcm, type, data, size, 0);
 }
 
-int _snd_pcm_lib_alloc_vmalloc_buffer(struct snd_pcm_substream *substream,
-				      size_t size, gfp_t gfp_flags);
-int snd_pcm_lib_free_vmalloc_buffer(struct snd_pcm_substream *substream);
-struct page *snd_pcm_lib_get_vmalloc_page(struct snd_pcm_substream *substream,
-					  unsigned long offset);
-/**
- * snd_pcm_lib_alloc_vmalloc_buffer - allocate virtual DMA buffer
- * @substream: the substream to allocate the buffer to
- * @size: the requested buffer size, in bytes
- *
- * Allocates the PCM substream buffer using vmalloc(), i.e., the memory is
- * contiguous in kernel virtual space, but not in physical memory.  Use this
- * if the buffer is accessed by kernel code but not by device DMA.
- *
- * Return: 1 if the buffer was changed, 0 if not changed, or a negative error
- * code.
- */
-static inline int snd_pcm_lib_alloc_vmalloc_buffer
-			(struct snd_pcm_substream *substream, size_t size)
-{
-	return _snd_pcm_lib_alloc_vmalloc_buffer(substream, size,
-						 GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO);
-}
-
-/**
- * snd_pcm_lib_alloc_vmalloc_32_buffer - allocate 32-bit-addressable buffer
- * @substream: the substream to allocate the buffer to
- * @size: the requested buffer size, in bytes
- *
- * This function works like snd_pcm_lib_alloc_vmalloc_buffer(), but uses
- * vmalloc_32(), i.e., the pages are allocated from 32-bit-addressable memory.
- *
- * Return: 1 if the buffer was changed, 0 if not changed, or a negative error
- * code.
- */
-static inline int snd_pcm_lib_alloc_vmalloc_32_buffer
-			(struct snd_pcm_substream *substream, size_t size)
-{
-	return _snd_pcm_lib_alloc_vmalloc_buffer(substream, size,
-						 GFP_KERNEL | GFP_DMA32 | __GFP_ZERO);
-}
-
 #define snd_pcm_get_dma_buf(substream) ((substream)->runtime->dma_buffer_p)
 
 /**