1DMA_BUF_KUNMAP(9)        Device drivers infrastructure       DMA_BUF_KUNMAP(9)
2
3
4

NAME

6       dma_buf_kunmap - Unmap a page obtained by dma_buf_kmap.
7

SYNOPSIS

9       void dma_buf_kunmap(struct dma_buf * dmabuf, unsigned long page_num,
10                           void * vaddr);
11

ARGUMENTS

13       dmabuf
14           [in] buffer to unmap page from.
15
16       page_num
17           [in] page in PAGE_SIZE units to unmap.
18
19       vaddr
20           [in] kernel space pointer obtained from dma_buf_kmap.
21

DESCRIPTION

23       This call must always succeed.
24

26Kernel Hackers Manual 3.10         June 2019                 DMA_BUF_KUNMAP(9)
Impressum