[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH 13/15] xen/gntdev-dmabuf: Ditch dummy map functions
There's no in-kernel users for the k(un)map stuff. And the mmap one is actively harmful - return 0 and then _not_ actually mmaping can't end well. Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx> Cc: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx> Cc: Juergen Gross <jgross@xxxxxxxx> Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx> Cc: xen-devel@xxxxxxxxxxxxxxxxxxxx -- Ack for merging this through drm trees very much appreciated. -Daniel --- drivers/xen/gntdev-dmabuf.c | 23 ----------------------- 1 file changed, 23 deletions(-) diff --git a/drivers/xen/gntdev-dmabuf.c b/drivers/xen/gntdev-dmabuf.c index 2c4f324f8626..fe7bd69d6955 100644 --- a/drivers/xen/gntdev-dmabuf.c +++ b/drivers/xen/gntdev-dmabuf.c @@ -342,35 +342,12 @@ static void dmabuf_exp_ops_release(struct dma_buf *dma_buf) mutex_unlock(&priv->lock); } -static void *dmabuf_exp_ops_kmap(struct dma_buf *dma_buf, - unsigned long page_num) -{ - /* Not implemented. */ - return NULL; -} - -static void dmabuf_exp_ops_kunmap(struct dma_buf *dma_buf, - unsigned long page_num, void *addr) -{ - /* Not implemented. */ -} - -static int dmabuf_exp_ops_mmap(struct dma_buf *dma_buf, - struct vm_area_struct *vma) -{ - /* Not implemented. */ - return 0; -} - static const struct dma_buf_ops dmabuf_exp_ops = { .attach = dmabuf_exp_ops_attach, .detach = dmabuf_exp_ops_detach, .map_dma_buf = dmabuf_exp_ops_map_dma_buf, .unmap_dma_buf = dmabuf_exp_ops_unmap_dma_buf, .release = dmabuf_exp_ops_release, - .map = dmabuf_exp_ops_kmap, - .unmap = dmabuf_exp_ops_kunmap, - .mmap = dmabuf_exp_ops_mmap, }; struct gntdev_dmabuf_export_args { -- 2.24.0 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxxx https://lists.xenproject.org/mailman/listinfo/xen-devel
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