vfio/ccw: Remove unneeded GFP_DMA

Since the ccw_io_region was split out of the private the allocation no
longer needs the GFP_DMA. Remove it.

Reported-by: Christoph Hellwig <[email protected]>
Fixes: c98e16b ("s390/cio: Convert ccw_io_region to pointer")
Reviewed-by: Matthew Rosato <[email protected]>
Reviewed-by: Eric Farman <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Alex Williamson <[email protected]>

Author: jgunthorpe

drivers/s390/cio/vfio_ccw_drv.c

@@ -161,7 +161,7 @@ static int vfio_ccw_sch_probe(struct subchannel *sch)
 		return -ENODEV;
 	}
 
-	private = kzalloc(sizeof(*private), GFP_KERNEL | GFP_DMA);
+	private = kzalloc(sizeof(*private), GFP_KERNEL);
 	if (!private)
 		return -ENOMEM;