dmaengine: ioatdma: Squelch framesize warnings

  CC [M]  drivers/dma/ioat/prep.o
drivers/dma/ioat/prep.c: In function 'ioat_prep_pqxor':
drivers/dma/ioat/prep.c:682:1: warning: the frame size of 1048 bytes is larger than 1024 bytes [-Wframe-larger-than=]
 }
 ^
drivers/dma/ioat/prep.c: In function 'ioat_prep_pqxor_val':
drivers/dma/ioat/prep.c:714:1: warning: the frame size of 1048 bytes is larger than 1024 bytes [-Wframe-larger-than=]
 }

gcc version 5.3.1 20151219 (Ubuntu 5.3.1-4ubuntu1)

Cc: Vinod Koul <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: Dave Jiang <[email protected]>
Cc: Prarit Bhargava <[email protected]>
Cc: Nicholas Mc Guire <[email protected]>
Cc: Jarkko Nikula <[email protected]>
Signed-off-by: Tim Gardner <[email protected]>
Signed-off-by: Vinod Koul <[email protected]>

drivers/dma/ioat/prep.c

@@ -26,7 +26,7 @@
 #include "hw.h"
 #include "dma.h"
 
-#define MAX_SCF	1024
+#define MAX_SCF	256
 
 /* provide a lookup table for setting the source address in the base or
  * extended descriptor of an xor or pq descriptor