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@xxxxxxx>
---
include/sound/pcm.h | 42 -----------------------------
sound/core/pcm_memory.c | 59 -----------------------------------------
2 files changed, 101 deletions(-)
diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index ac8f3aef9205..3c56a648bdcd 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -1355,48 +1355,6 @@ 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)
/**
diff --git a/sound/core/pcm_memory.c b/sound/core/pcm_memory.c
index 506386959f08..8e4c68e3bbd0 100644
--- a/sound/core/pcm_memory.c
+++ b/sound/core/pcm_memory.c
@@ -9,7 +9,6 @@
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/moduleparam.h>
-#include <linux/vmalloc.h>
#include <linux/export.h>
#include <sound/core.h>
#include <sound/pcm.h>
@@ -497,61 +496,3 @@ int snd_pcm_lib_free_pages(struct snd_pcm_substream *substream)
return 0;
}
EXPORT_SYMBOL(snd_pcm_lib_free_pages);
-
-int _snd_pcm_lib_alloc_vmalloc_buffer(struct snd_pcm_substream *substream,
- size_t size, gfp_t gfp_flags)
-{
- struct snd_pcm_runtime *runtime;
-
- if (PCM_RUNTIME_CHECK(substream))
- return -EINVAL;
- runtime = substream->runtime;
- if (runtime->dma_area) {
- if (runtime->dma_bytes >= size)
- return 0; /* already large enough */
- vfree(runtime->dma_area);
- }
- runtime->dma_area = __vmalloc(size, gfp_flags);
- if (!runtime->dma_area)
- return -ENOMEM;
- runtime->dma_bytes = size;
- return 1;
-}
-EXPORT_SYMBOL(_snd_pcm_lib_alloc_vmalloc_buffer);
-
-/**
- * snd_pcm_lib_free_vmalloc_buffer - free vmalloc buffer
- * @substream: the substream with a buffer allocated by
- * snd_pcm_lib_alloc_vmalloc_buffer()
- *
- * Return: Zero if successful, or a negative error code on failure.
- */
-int snd_pcm_lib_free_vmalloc_buffer(struct snd_pcm_substream *substream)
-{
- struct snd_pcm_runtime *runtime;
-
- if (PCM_RUNTIME_CHECK(substream))
- return -EINVAL;
- runtime = substream->runtime;
- vfree(runtime->dma_area);
- runtime->dma_area = NULL;
- return 0;
-}
-EXPORT_SYMBOL(snd_pcm_lib_free_vmalloc_buffer);
-
-/**
- * snd_pcm_lib_get_vmalloc_page - map vmalloc buffer offset to page struct
- * @substream: the substream with a buffer allocated by
- * snd_pcm_lib_alloc_vmalloc_buffer()
- * @offset: offset in the buffer
- *
- * This function is to be used as the page callback in the PCM ops.
- *
- * Return: The page struct, or %NULL on failure.
- */
-struct page *snd_pcm_lib_get_vmalloc_page(struct snd_pcm_substream *substream,
- unsigned long offset)
-{
- return vmalloc_to_page(substream->runtime->dma_area + offset);
-}
-EXPORT_SYMBOL(snd_pcm_lib_get_vmalloc_page);
--
2.43.0
