diff options
| -rw-r--r-- | drivers/base/dma-buf.c | 9 | ||||
| -rw-r--r-- | include/linux/dma-buf.h | 3 |
2 files changed, 8 insertions, 4 deletions
diff --git a/drivers/base/dma-buf.c b/drivers/base/dma-buf.c index d43d80256fda..20258e179211 100644 --- a/drivers/base/dma-buf.c +++ b/drivers/base/dma-buf.c @@ -429,7 +429,7 @@ EXPORT_SYMBOL_GPL(dma_buf_kunmap); /** * dma_buf_mmap - Setup up a userspace mmap with the given vma - * @dma_buf: [in] buffer that should back the vma + * @dmabuf: [in] buffer that should back the vma * @vma: [in] vma for the mmap * @pgoff: [in] offset in pages where this mmap should start within the * dma-buf buffer. @@ -470,8 +470,9 @@ int dma_buf_mmap(struct dma_buf *dmabuf, struct vm_area_struct *vma, EXPORT_SYMBOL_GPL(dma_buf_mmap); /** - * dma_buf_vmap - Create virtual mapping for the buffer object into kernel address space. Same restrictions as for vmap and friends apply. - * @dma_buf: [in] buffer to vmap + * dma_buf_vmap - Create virtual mapping for the buffer object into kernel + * address space. Same restrictions as for vmap and friends apply. + * @dmabuf: [in] buffer to vmap * * This call may fail due to lack of virtual mapping address space. * These calls are optional in drivers. The intended use for them @@ -491,7 +492,7 @@ EXPORT_SYMBOL_GPL(dma_buf_vmap); /** * dma_buf_vunmap - Unmap a vmap obtained by dma_buf_vmap. - * @dma_buf: [in] buffer to vmap + * @dmabuf: [in] buffer to vunmap */ void dma_buf_vunmap(struct dma_buf *dmabuf, void *vaddr) { diff --git a/include/linux/dma-buf.h b/include/linux/dma-buf.h index a02b1ff6488e..eb48f3816df9 100644 --- a/include/linux/dma-buf.h +++ b/include/linux/dma-buf.h @@ -65,6 +65,9 @@ struct dma_buf_attachment; * mapping needs to be coherent - if the exporter doesn't directly * support this, it needs to fake coherency by shooting down any ptes * when transitioning away from the cpu domain. + * @vmap: [optional] creates a virtual mapping for the buffer into kernel + * address space. Same restrictions as for vmap and friends apply. + * @vunmap: [optional] unmaps a vmap from the buffer */ struct dma_buf_ops { int (*attach)(struct dma_buf *, struct device *, |