Merge branch 'topic/noncached-mmap' into topic/misc

1 files changed, 9 insertions, 2 deletions

diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index 43552fd73d24..b53fa845004d 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -3165,9 +3165,7 @@ int snd_pcm_lib_mmap_iomem(struct snd_pcm_substream *substream,
         long size;
         unsigned long offset;
 
-#ifdef pgprot_noncached
         area->vm_page_prot = pgprot_noncached(area->vm_page_prot);
-#endif
         area->vm_flags |= VM_IO;
         size = area->vm_end - area->vm_start;
         offset = area->vm_pgoff << PAGE_SHIFT;
@@ -3181,6 +3179,15 @@ int snd_pcm_lib_mmap_iomem(struct snd_pcm_substream *substream,
 EXPORT_SYMBOL(snd_pcm_lib_mmap_iomem);
 #endif /* SNDRV_PCM_INFO_MMAP */
 
+/* mmap callback with pgprot_noncached */
+int snd_pcm_lib_mmap_noncached(struct snd_pcm_substream *substream,
+                               struct vm_area_struct *area)
+{
+        area->vm_page_prot = pgprot_noncached(area->vm_page_prot);
+        return snd_pcm_default_mmap(substream, area);
+}
+EXPORT_SYMBOL(snd_pcm_lib_mmap_noncached);
+
 /*
  * mmap DMA buffer
  */