drm/i915/dmabuf: Update dma_buf_ops.unmap_dma_buf callback to use drm_gem_unmap_dma_buf()

The dma_buf_ops.unmap_dma_buf callback used in i915,
i915_gem_unmap_dma_buf(), has the same code as drm_gem_unmap_dma_buf().
In order to eliminate defining and using duplicate function, it updates
the dma_buf_ops.unmap_dma_buf callback to use drm_gem_unmap_dma_buf().

Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Reviewed-by: Nirmoy Das <nirmoy.das@intel.com>
Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220225131316.1433515-2-gwan-gyeong.mun@intel.com

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c b/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c
index 13917231ae81a09e3b232d7d4b9fd5cb01f83f21..af899ae1f3c7b631e16d11e35f1a36fcd6592b12 100644 (file)
--- a/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c
@@ -66,15 +66,6 @@ err:
        return ERR_PTR(ret);
 }
 
-static void i915_gem_unmap_dma_buf(struct dma_buf_attachment *attachment,
-                                  struct sg_table *sg,
-                                  enum dma_data_direction dir)
-{
-       dma_unmap_sgtable(attachment->dev, sg, dir, DMA_ATTR_SKIP_CPU_SYNC);
-       sg_free_table(sg);
-       kfree(sg);
-}
-
 static int i915_gem_dmabuf_vmap(struct dma_buf *dma_buf,
                                struct iosys_map *map)
 {
@@ -209,7 +200,7 @@ static const struct dma_buf_ops i915_dmabuf_ops =  {
        .attach = i915_gem_dmabuf_attach,
        .detach = i915_gem_dmabuf_detach,
        .map_dma_buf = i915_gem_map_dma_buf,
-       .unmap_dma_buf = i915_gem_unmap_dma_buf,
+       .unmap_dma_buf = drm_gem_unmap_dma_buf,
        .release = drm_gem_dmabuf_release,
        .mmap = i915_gem_dmabuf_mmap,
        .vmap = i915_gem_dmabuf_vmap,