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| author | Marek Szyprowski <m.szyprowski@samsung.com> | 2020-09-04 15:17:11 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2020-09-26 10:35:18 +0200 |
| commit | 8b7c0280ab03ddf465c948cb510debb85eb4e8ac (patch) | |
| tree | 16fd162080d23d31e1ff5544bee68df9502a62bd /drivers/media/common/videobuf2/videobuf2-vmalloc.c | |
| parent | media: pci: fix common ALSA DMA-mapping related codes (diff) | |
| download | linux-8b7c0280ab03ddf465c948cb510debb85eb4e8ac.tar.xz linux-8b7c0280ab03ddf465c948cb510debb85eb4e8ac.zip | |
media: videobuf2: use sgtable-based scatterlist wrappers
Use recently introduced common wrappers operating directly on the struct
sg_table objects and scatterlist page iterators to make the code a bit
more compact, robust, easier to follow and copy/paste safe.
No functional change, because the code already properly did all the
scatterlist related calls.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'drivers/media/common/videobuf2/videobuf2-vmalloc.c')
| -rw-r--r-- | drivers/media/common/videobuf2/videobuf2-vmalloc.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/drivers/media/common/videobuf2/videobuf2-vmalloc.c b/drivers/media/common/videobuf2/videobuf2-vmalloc.c index c66fda4a65e4..bf5ac63a5742 100644 --- a/drivers/media/common/videobuf2/videobuf2-vmalloc.c +++ b/drivers/media/common/videobuf2/videobuf2-vmalloc.c @@ -229,7 +229,7 @@ static int vb2_vmalloc_dmabuf_ops_attach(struct dma_buf *dbuf, kfree(attach); return ret; } - for_each_sg(sgt->sgl, sg, sgt->nents, i) { + for_each_sgtable_sg(sgt, sg, i) { struct page *page = vmalloc_to_page(vaddr); if (!page) { @@ -259,8 +259,7 @@ static void vb2_vmalloc_dmabuf_ops_detach(struct dma_buf *dbuf, /* release the scatterlist cache */ if (attach->dma_dir != DMA_NONE) - dma_unmap_sg(db_attach->dev, sgt->sgl, sgt->orig_nents, - attach->dma_dir); + dma_unmap_sgtable(db_attach->dev, sgt, attach->dma_dir, 0); sg_free_table(sgt); kfree(attach); db_attach->priv = NULL; @@ -285,15 +284,12 @@ static struct sg_table *vb2_vmalloc_dmabuf_ops_map( /* release any previous cache */ if (attach->dma_dir != DMA_NONE) { - dma_unmap_sg(db_attach->dev, sgt->sgl, sgt->orig_nents, - attach->dma_dir); + dma_unmap_sgtable(db_attach->dev, sgt, attach->dma_dir, 0); attach->dma_dir = DMA_NONE; } /* mapping to the client with new direction */ - sgt->nents = dma_map_sg(db_attach->dev, sgt->sgl, sgt->orig_nents, - dma_dir); - if (!sgt->nents) { + if (dma_map_sgtable(db_attach->dev, sgt, dma_dir, 0)) { pr_err("failed to map scatterlist\n"); mutex_unlock(lock); return ERR_PTR(-EIO); |