dma-buf: Include ioctl.h in UAPI header

include/uapi/linux/dma-buf.h uses several macros from ioctl.h to define
its ioctl commands. However, it does not include ioctl.h itself. So,
if userspace source code tries to include the dma-buf.h file without
including ioctl.h, it can result in build failures.

Therefore, include ioctl.h in the dma-buf UAPI header.

Signed-off-by: Isaac J. Manjarres <[email protected]>
Reviewed-by: T.J. Mercier <[email protected]>
Reviewed-by: Christian König <[email protected]>
Signed-off-by: Christian König <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

Author: isaacmanjarres

include/uapi/linux/dma-buf.h

@@ -20,6 +20,7 @@
 #ifndef _DMA_BUF_UAPI_H_
 #define _DMA_BUF_UAPI_H_
 
+#include <linux/ioctl.h>
 #include <linux/types.h>
 
 /**