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| author | Magnus Damm <damm@igel.co.jp> | 2009-04-28 05:45:39 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-06-16 18:20:57 -0300 |
| commit | c9adb4314f0cd2be9304cef8342d71464becb40e (patch) | |
| tree | bd914f36b6e5863ddb481de993fba9fb3748caa5 /drivers/media/video/videobuf-dma-contig.c | |
| parent | 6e9c1a2a6766df0cad1632812c6ad05eabf158e4 (diff) | |
| download | kernel_samsung_smdk4412-c9adb4314f0cd2be9304cef8342d71464becb40e.tar.gz kernel_samsung_smdk4412-c9adb4314f0cd2be9304cef8342d71464becb40e.tar.bz2 kernel_samsung_smdk4412-c9adb4314f0cd2be9304cef8342d71464becb40e.zip | |
V4L/DVB (11731): buf-dma-contig: remove sync operation
Remove the videobuf-dma-contig sync operation. Sync is only needed
for noncoherent buffers, and since videobuf-dma-contig is built on
coherent memory allocators the memory is by definition always in sync.
Reported-by: Matthieu CASTET <matthieu.castet@parrot.com>
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Reviewed-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/videobuf-dma-contig.c')
| -rw-r--r-- | drivers/media/video/videobuf-dma-contig.c | 14 |
1 files changed, 0 insertions, 14 deletions
diff --git a/drivers/media/video/videobuf-dma-contig.c b/drivers/media/video/videobuf-dma-contig.c index 6109fb5f34e..08d3e17c450 100644 --- a/drivers/media/video/videobuf-dma-contig.c +++ b/drivers/media/video/videobuf-dma-contig.c @@ -182,19 +182,6 @@ static int __videobuf_iolock(struct videobuf_queue *q, return 0; } -static int __videobuf_sync(struct videobuf_queue *q, - struct videobuf_buffer *buf) -{ - struct videobuf_dma_contig_memory *mem = buf->priv; - - BUG_ON(!mem); - MAGIC_CHECK(mem->magic, MAGIC_DC_MEM); - - dma_sync_single_for_cpu(q->dev, mem->dma_handle, mem->size, - DMA_FROM_DEVICE); - return 0; -} - static int __videobuf_mmap_free(struct videobuf_queue *q) { unsigned int i; @@ -356,7 +343,6 @@ static struct videobuf_qtype_ops qops = { .alloc = __videobuf_alloc, .iolock = __videobuf_iolock, - .sync = __videobuf_sync, .mmap_free = __videobuf_mmap_free, .mmap_mapper = __videobuf_mmap_mapper, .video_copy_to_user = __videobuf_copy_to_user, |