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authorSumit Semwal <sumit.semwal@linaro.org>2015-01-23 12:53:43 +0530
committerSumit Semwal <sumit.semwal@linaro.org>2015-04-21 14:47:16 +0530
commitd8fbe341beb617ebb22b98fb893e4aa32ae2d864 (patch)
tree2e19c951d2b6ffef2319d87ec8a6c39e4e1ab8ee /drivers/media
parent646da63172f660ba84f195c1165360a9b73583ee (diff)
downloadlinux-d8fbe341beb617ebb22b98fb893e4aa32ae2d864.tar.bz2
dma-buf: cleanup dma_buf_export() to make it easily extensible
At present, dma_buf_export() takes a series of parameters, which makes it difficult to add any new parameters for exporters, if required. Make it simpler by moving all these parameters into a struct, and pass the struct * as parameter to dma_buf_export(). While at it, unite dma_buf_export_named() with dma_buf_export(), and change all callers accordingly. Reviewed-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Acked-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/v4l2-core/videobuf2-dma-contig.c8
-rw-r--r--drivers/media/v4l2-core/videobuf2-dma-sg.c8
-rw-r--r--drivers/media/v4l2-core/videobuf2-vmalloc.c8
3 files changed, 21 insertions, 3 deletions
diff --git a/drivers/media/v4l2-core/videobuf2-dma-contig.c b/drivers/media/v4l2-core/videobuf2-dma-contig.c
index 69e0483adfee..644dec73d220 100644
--- a/drivers/media/v4l2-core/videobuf2-dma-contig.c
+++ b/drivers/media/v4l2-core/videobuf2-dma-contig.c
@@ -402,6 +402,12 @@ static struct dma_buf *vb2_dc_get_dmabuf(void *buf_priv, unsigned long flags)
{
struct vb2_dc_buf *buf = buf_priv;
struct dma_buf *dbuf;
+ DEFINE_DMA_BUF_EXPORT_INFO(exp_info);
+
+ exp_info.ops = &vb2_dc_dmabuf_ops;
+ exp_info.size = buf->size;
+ exp_info.flags = flags;
+ exp_info.priv = buf;
if (!buf->sgt_base)
buf->sgt_base = vb2_dc_get_base_sgt(buf);
@@ -409,7 +415,7 @@ static struct dma_buf *vb2_dc_get_dmabuf(void *buf_priv, unsigned long flags)
if (WARN_ON(!buf->sgt_base))
return NULL;
- dbuf = dma_buf_export(buf, &vb2_dc_dmabuf_ops, buf->size, flags, NULL);
+ dbuf = dma_buf_export(&exp_info);
if (IS_ERR(dbuf))
return NULL;
diff --git a/drivers/media/v4l2-core/videobuf2-dma-sg.c b/drivers/media/v4l2-core/videobuf2-dma-sg.c
index b1838abb6d00..45c708e463b9 100644
--- a/drivers/media/v4l2-core/videobuf2-dma-sg.c
+++ b/drivers/media/v4l2-core/videobuf2-dma-sg.c
@@ -583,11 +583,17 @@ static struct dma_buf *vb2_dma_sg_get_dmabuf(void *buf_priv, unsigned long flags
{
struct vb2_dma_sg_buf *buf = buf_priv;
struct dma_buf *dbuf;
+ DEFINE_DMA_BUF_EXPORT_INFO(exp_info);
+
+ exp_info.ops = &vb2_dma_sg_dmabuf_ops;
+ exp_info.size = buf->size;
+ exp_info.flags = flags;
+ exp_info.priv = buf;
if (WARN_ON(!buf->dma_sgt))
return NULL;
- dbuf = dma_buf_export(buf, &vb2_dma_sg_dmabuf_ops, buf->size, flags, NULL);
+ dbuf = dma_buf_export(&exp_info);
if (IS_ERR(dbuf))
return NULL;
diff --git a/drivers/media/v4l2-core/videobuf2-vmalloc.c b/drivers/media/v4l2-core/videobuf2-vmalloc.c
index bcde88572429..657ab302a5cf 100644
--- a/drivers/media/v4l2-core/videobuf2-vmalloc.c
+++ b/drivers/media/v4l2-core/videobuf2-vmalloc.c
@@ -368,11 +368,17 @@ static struct dma_buf *vb2_vmalloc_get_dmabuf(void *buf_priv, unsigned long flag
{
struct vb2_vmalloc_buf *buf = buf_priv;
struct dma_buf *dbuf;
+ DEFINE_DMA_BUF_EXPORT_INFO(exp_info);
+
+ exp_info.ops = &vb2_vmalloc_dmabuf_ops;
+ exp_info.size = buf->size;
+ exp_info.flags = flags;
+ exp_info.priv = buf;
if (WARN_ON(!buf->vaddr))
return NULL;
- dbuf = dma_buf_export(buf, &vb2_vmalloc_dmabuf_ops, buf->size, flags, NULL);
+ dbuf = dma_buf_export(&exp_info);
if (IS_ERR(dbuf))
return NULL;