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dma-buf: add support for compat ioctl

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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 <[email protected]>
Reviewed-by: Christian König <[email protected]>
Acked-by: Daniel Vetter <[email protected]>
Signed-off-by: Sumit Semwal <[email protected]>
Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
This commit is contained in:
Marek Szyprowski 2017-02-21 14:21:01 +01:00 • committed by Sumit Semwal
commit 888022c047
1 changed files with 3 additions and 0 deletions
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3
drivers/dma-buf/dma-buf.c
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@ -325,6 +325,9 @@ 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
};
/*