[PATCH 1/5] dma_buf: remove device parameter from attach callback
Daniel Vetter
daniel at ffwll.ch
Mon Jun 18 08:14:32 UTC 2018
On Fri, Jun 01, 2018 at 02:00:16PM +0200, Christian König wrote:
> The device parameter is completely unused because it is available in the
> attachment structure as well.
>
> Signed-off-by: Christian König <christian.koenig at amd.com>
> ---
> drivers/dma-buf/dma-buf.c | 2 +-
> drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c | 3 +--
> drivers/gpu/drm/drm_prime.c | 3 +--
> drivers/gpu/drm/udl/udl_dmabuf.c | 1 -
> drivers/gpu/drm/vmwgfx/vmwgfx_prime.c | 1 -
> drivers/media/common/videobuf2/videobuf2-dma-contig.c | 2 +-
> drivers/media/common/videobuf2/videobuf2-dma-sg.c | 2 +-
> drivers/media/common/videobuf2/videobuf2-vmalloc.c | 2 +-
> include/drm/drm_prime.h | 2 +-
> include/linux/dma-buf.h | 3 +--
> 10 files changed, 8 insertions(+), 13 deletions(-)
>
> diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
> index d78d5fc173dc..e99a8d19991b 100644
> --- a/drivers/dma-buf/dma-buf.c
> +++ b/drivers/dma-buf/dma-buf.c
> @@ -568,7 +568,7 @@ struct dma_buf_attachment *dma_buf_attach(struct dma_buf *dmabuf,
> mutex_lock(&dmabuf->lock);
>
> if (dmabuf->ops->attach) {
> - ret = dmabuf->ops->attach(dmabuf, dev, attach);
> + ret = dmabuf->ops->attach(dmabuf, attach);
> if (ret)
> goto err_attach;
> }
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c
> index 4683626b065f..f1500f1ec0f5 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c
> @@ -133,7 +133,6 @@ amdgpu_gem_prime_import_sg_table(struct drm_device *dev,
> }
>
> static int amdgpu_gem_map_attach(struct dma_buf *dma_buf,
> - struct device *target_dev,
> struct dma_buf_attachment *attach)
> {
> struct drm_gem_object *obj = dma_buf->priv;
> @@ -141,7 +140,7 @@ static int amdgpu_gem_map_attach(struct dma_buf *dma_buf,
> struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
> long r;
>
> - r = drm_gem_map_attach(dma_buf, target_dev, attach);
> + r = drm_gem_map_attach(dma_buf, attach);
> if (r)
> return r;
>
> diff --git a/drivers/gpu/drm/drm_prime.c b/drivers/gpu/drm/drm_prime.c
> index 7856a9b3f8a8..4a3a232fea67 100644
> --- a/drivers/gpu/drm/drm_prime.c
> +++ b/drivers/gpu/drm/drm_prime.c
> @@ -186,7 +186,6 @@ static int drm_prime_lookup_buf_handle(struct drm_prime_file_private *prime_fpri
> /**
> * drm_gem_map_attach - dma_buf attach implementation for GEM
> * @dma_buf: buffer to attach device to
> - * @target_dev: not used
> * @attach: buffer attachment data
> *
> * Allocates &drm_prime_attachment and calls &drm_driver.gem_prime_pin for
> @@ -195,7 +194,7 @@ static int drm_prime_lookup_buf_handle(struct drm_prime_file_private *prime_fpri
> *
> * Returns 0 on success, negative error code on failure.
> */
> -int drm_gem_map_attach(struct dma_buf *dma_buf, struct device *target_dev,
> +int drm_gem_map_attach(struct dma_buf *dma_buf,
> struct dma_buf_attachment *attach)
> {
> struct drm_prime_attachment *prime_attach;
> diff --git a/drivers/gpu/drm/udl/udl_dmabuf.c b/drivers/gpu/drm/udl/udl_dmabuf.c
> index 2867ed155ff6..5fdc8bdc2026 100644
> --- a/drivers/gpu/drm/udl/udl_dmabuf.c
> +++ b/drivers/gpu/drm/udl/udl_dmabuf.c
> @@ -29,7 +29,6 @@ struct udl_drm_dmabuf_attachment {
> };
>
> static int udl_attach_dma_buf(struct dma_buf *dmabuf,
> - struct device *dev,
> struct dma_buf_attachment *attach)
> {
> struct udl_drm_dmabuf_attachment *udl_attach;
> diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_prime.c b/drivers/gpu/drm/vmwgfx/vmwgfx_prime.c
> index 0d42a46521fc..fbffb37ccf42 100644
> --- a/drivers/gpu/drm/vmwgfx/vmwgfx_prime.c
> +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_prime.c
> @@ -40,7 +40,6 @@
> */
>
> static int vmw_prime_map_attach(struct dma_buf *dma_buf,
> - struct device *target_dev,
> struct dma_buf_attachment *attach)
> {
> return -ENOSYS;
> diff --git a/drivers/media/common/videobuf2/videobuf2-dma-contig.c b/drivers/media/common/videobuf2/videobuf2-dma-contig.c
> index f1178f6f434d..12d0072c52c2 100644
> --- a/drivers/media/common/videobuf2/videobuf2-dma-contig.c
> +++ b/drivers/media/common/videobuf2/videobuf2-dma-contig.c
> @@ -222,7 +222,7 @@ struct vb2_dc_attachment {
> enum dma_data_direction dma_dir;
> };
>
> -static int vb2_dc_dmabuf_ops_attach(struct dma_buf *dbuf, struct device *dev,
> +static int vb2_dc_dmabuf_ops_attach(struct dma_buf *dbuf,
> struct dma_buf_attachment *dbuf_attach)
> {
> struct vb2_dc_attachment *attach;
> diff --git a/drivers/media/common/videobuf2/videobuf2-dma-sg.c b/drivers/media/common/videobuf2/videobuf2-dma-sg.c
> index 753ed3138dcc..cf94765e593f 100644
> --- a/drivers/media/common/videobuf2/videobuf2-dma-sg.c
> +++ b/drivers/media/common/videobuf2/videobuf2-dma-sg.c
> @@ -371,7 +371,7 @@ struct vb2_dma_sg_attachment {
> enum dma_data_direction dma_dir;
> };
>
> -static int vb2_dma_sg_dmabuf_ops_attach(struct dma_buf *dbuf, struct device *dev,
> +static int vb2_dma_sg_dmabuf_ops_attach(struct dma_buf *dbuf,
> struct dma_buf_attachment *dbuf_attach)
> {
> struct vb2_dma_sg_attachment *attach;
> diff --git a/drivers/media/common/videobuf2/videobuf2-vmalloc.c b/drivers/media/common/videobuf2/videobuf2-vmalloc.c
> index 3a7c80cd1a17..298ffb9ecdae 100644
> --- a/drivers/media/common/videobuf2/videobuf2-vmalloc.c
> +++ b/drivers/media/common/videobuf2/videobuf2-vmalloc.c
> @@ -209,7 +209,7 @@ struct vb2_vmalloc_attachment {
> enum dma_data_direction dma_dir;
> };
>
> -static int vb2_vmalloc_dmabuf_ops_attach(struct dma_buf *dbuf, struct device *dev,
> +static int vb2_vmalloc_dmabuf_ops_attach(struct dma_buf *dbuf,
> struct dma_buf_attachment *dbuf_attach)
> {
> struct vb2_vmalloc_attachment *attach;
> diff --git a/include/drm/drm_prime.h b/include/drm/drm_prime.h
> index 4d5f5d6cf6a6..ef338151cea8 100644
> --- a/include/drm/drm_prime.h
> +++ b/include/drm/drm_prime.h
> @@ -82,7 +82,7 @@ int drm_gem_prime_fd_to_handle(struct drm_device *dev,
> struct dma_buf *drm_gem_dmabuf_export(struct drm_device *dev,
> struct dma_buf_export_info *exp_info);
> void drm_gem_dmabuf_release(struct dma_buf *dma_buf);
> -int drm_gem_map_attach(struct dma_buf *dma_buf, struct device *target_dev,
> +int drm_gem_map_attach(struct dma_buf *dma_buf,
> struct dma_buf_attachment *attach);
> void drm_gem_map_detach(struct dma_buf *dma_buf,
> struct dma_buf_attachment *attach);
> diff --git a/include/linux/dma-buf.h b/include/linux/dma-buf.h
> index 085db2fee2d7..346caf77937f 100644
> --- a/include/linux/dma-buf.h
> +++ b/include/linux/dma-buf.h
> @@ -77,8 +77,7 @@ struct dma_buf_ops {
> * to signal that backing storage is already allocated and incompatible
> * with the requirements of requesting device.
Needs the the kerneldoc above updated slightly, which still references the
device paramater. Replacing that with struct &dma_buf_attachment.dev (pls
double-check the hyperlink keeps working) is all that's needed I think.
With that fixed:
Reviewed-by: Daniel Vetter <daniel.vetter at ffwll.ch>
> */
> - int (*attach)(struct dma_buf *, struct device *,
> - struct dma_buf_attachment *);
> + int (*attach)(struct dma_buf *, struct dma_buf_attachment *);
>
> /**
> * @detach:
> --
> 2.14.1
>
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--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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