staging/android/ion: delete dma_buf->kmap/unmap implemenation

There's no callers in-tree anymore.

For merging probably best to stuff this into drm-misc, since that's
where the dma-buf heaps will land too. And the resulting conflict
hopefully ensures that dma-buf heaps wont have a new ->kmap/unmap
implemenation.

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Laura Abbott <labbott@redhat.com>
Acked-by: Sumit Semwal <sumit.semwal@linaro.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Laura Abbott <labbott@redhat.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: devel@driverdev.osuosl.org
Cc: linaro-mm-sig@lists.linaro.org
Link: https://patchwork.freedesktop.org/patch/msgid/20191118103536.17675-5-daniel.vetter@ffwll.ch

diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c
index e6b1ca1..bb4eded 100644 (file)
--- a/drivers/staging/android/ion/ion.c
+++ b/drivers/staging/android/ion/ion.c
@@ -274,18 +274,6 @@ static void ion_dma_buf_release(struct dma_buf *dmabuf)
        _ion_buffer_destroy(buffer);
 }
 
-static void *ion_dma_buf_kmap(struct dma_buf *dmabuf, unsigned long offset)
-{
-       struct ion_buffer *buffer = dmabuf->priv;
-
-       return buffer->vaddr + offset * PAGE_SIZE;
-}
-
-static void ion_dma_buf_kunmap(struct dma_buf *dmabuf, unsigned long offset,
-                              void *ptr)
-{
-}
-
 static int ion_dma_buf_begin_cpu_access(struct dma_buf *dmabuf,
                                        enum dma_data_direction direction)
 {
@@ -349,8 +337,6 @@ static const struct dma_buf_ops dma_buf_ops = {
        .detach = ion_dma_buf_detatch,
        .begin_cpu_access = ion_dma_buf_begin_cpu_access,
        .end_cpu_access = ion_dma_buf_end_cpu_access,
-       .map = ion_dma_buf_kmap,
-       .unmap = ion_dma_buf_kunmap,
 };
 
 static int ion_alloc(size_t len, unsigned int heap_id_mask, unsigned int flags)