diff options
| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2019-11-18 13:35:30 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2019-11-26 00:36:14 +0300 |
| commit | 7f0de8d80816d9620e995cf98acf4b6cd2d7c230 (patch) | |
| tree | 6268e2a783a9923ab3c56404720cb89df33dc05b /include/linux/dma-buf.h | |
| parent | 7195cf427b6822a40210f5ab1078aecaa5aaea8a (diff) | |
| download | linux-7f0de8d80816d9620e995cf98acf4b6cd2d7c230.tar.xz | |
dma-buf: Drop dma_buf_k(un)map
It's unused.
10 years ago, back when 32bit was still fairly common and trying to
not exhaust vmalloc space sounded like a worthwhile goal, adding these
to dma_buf made sense.
Reality is that they simply never caught on, and nowadays everyone who
needs plenty of buffers will run in 64bit mode anyway.
Also update the docs in this area to adjust them to reality.
The actual hooks in dma_buf_ops will be removed once all the
implementations are gone.
Acked-by: Sumit Semwal <sumit.semwal@linaro.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: linux-media@vger.kernel.org
Cc: linaro-mm-sig@lists.linaro.org
Link: https://patchwork.freedesktop.org/patch/msgid/20191118103536.17675-10-daniel.vetter@ffwll.ch
Diffstat (limited to 'include/linux/dma-buf.h')
| -rw-r--r-- | include/linux/dma-buf.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/include/linux/dma-buf.h b/include/linux/dma-buf.h index af73f835c51c..7feb9c3805ae 100644 --- a/include/linux/dma-buf.h +++ b/include/linux/dma-buf.h @@ -464,8 +464,6 @@ int dma_buf_begin_cpu_access(struct dma_buf *dma_buf, enum dma_data_direction dir); int dma_buf_end_cpu_access(struct dma_buf *dma_buf, enum dma_data_direction dir); -void *dma_buf_kmap(struct dma_buf *, unsigned long); -void dma_buf_kunmap(struct dma_buf *, unsigned long, void *); int dma_buf_mmap(struct dma_buf *, struct vm_area_struct *, unsigned long); |