[RFC PATCH v2 3/8] media: videobuf2: move out of setting pgprot_noncached from vb2_mmap_pfn_range
Ming Lei
ming.lei at canonical.com
Wed Dec 14 09:00:09 EST 2011
So that we can reuse vb2_mmap_pfn_range for the coming videobuf2_page
memops.
Signed-off-by: Ming Lei <ming.lei at canonical.com>
---
drivers/media/video/videobuf2-dma-contig.c | 1 +
drivers/media/video/videobuf2-memops.c | 1 -
2 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/media/video/videobuf2-dma-contig.c b/drivers/media/video/videobuf2-dma-contig.c
index f17ad98..0ea8866 100644
--- a/drivers/media/video/videobuf2-dma-contig.c
+++ b/drivers/media/video/videobuf2-dma-contig.c
@@ -106,6 +106,7 @@ static int vb2_dma_contig_mmap(void *buf_priv, struct vm_area_struct *vma)
return -EINVAL;
}
+ vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
return vb2_mmap_pfn_range(vma, buf->dma_addr, buf->size,
&vb2_common_vm_ops, &buf->handler);
}
diff --git a/drivers/media/video/videobuf2-memops.c b/drivers/media/video/videobuf2-memops.c
index 71a7a78..77e0def 100644
--- a/drivers/media/video/videobuf2-memops.c
+++ b/drivers/media/video/videobuf2-memops.c
@@ -162,7 +162,6 @@ int vb2_mmap_pfn_range(struct vm_area_struct *vma, unsigned long paddr,
size = min_t(unsigned long, vma->vm_end - vma->vm_start, size);
- vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
ret = remap_pfn_range(vma, vma->vm_start, paddr >> PAGE_SHIFT,
size, vma->vm_page_prot);
if (ret) {
--
1.7.5.4
More information about the linux-arm-kernel
mailing list