dma-buf: add support for compat ioctl

commit 888022c0473d079bff9b47fb50434b1f20f8f37f upstream.

Add compat ioctl support to dma-buf. This lets one to use DMA_BUF_IOCTL_SYNC
ioctl from 32bit application on 64bit kernel. Data structures for both 32
and 64bit modes are same, so there is no need for additional translation
layer.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1487683261-2655-1-git-send-email-m.szyprowski@samsung.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
index cf04d249a6a43b26b5168c3a7a55d54eff4ffcde..6b54e02da10c9c447b5dc573a2bd79f94329ebcb 100644 (file)
--- a/drivers/dma-buf/dma-buf.c
+++ b/drivers/dma-buf/dma-buf.c
@@ -303,6 +303,9 @@ static const struct file_operations dma_buf_fops = {
        .llseek         = dma_buf_llseek,
        .poll           = dma_buf_poll,
        .unlocked_ioctl = dma_buf_ioctl,
+#ifdef CONFIG_COMPAT
+       .compat_ioctl   = dma_buf_ioctl,
+#endif
 };
 
 /*