DMA_BUF_KUNMAP_ATOMI(9) Device drivers infrastructure DMA_BUF_KUNMAP_ATOMI(9)
NAME
dma_buf_kunmap_atomic - Unmap a page obtained by dma_buf_kmap_atomic.
SYNOPSIS
void dma_buf_kunmap_atomic(struct dma_buf * dmabuf, unsigned long page_num, void * vaddr);
ARGUMENTS
dmabuf
[in] buffer to unmap page from.
page_num
[in] page in PAGE_SIZE units to unmap.
vaddr
[in] kernel space pointer obtained from dma_buf_kmap_atomic.
DESCRIPTION
This call must always succeed.
COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 DMA_BUF_KUNMAP_ATOMI(9)
