[SCSI] isci: fix support for large smp requests

Kill the local smp response buffer.

Besides being unnecessary, it is too small (currently truncates
responses to 60 bytes).  The mid-layer will have already allocated a
sufficiently sized buffer, just kmap and copy into it directly.

Cc: <stable@kernel.org>
Reported-by: Derick Marks <derick.w.marks@intel.com>
Tested-by: Derick Marks <derick.w.marks@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/isci/isci.h b/drivers/scsi/isci/isci.h
index d1de633..8efeb6b 100644
--- a/drivers/scsi/isci/isci.h
+++ b/drivers/scsi/isci/isci.h
@@ -97,7 +97,7 @@
 #define SCU_MAX_COMPLETION_QUEUE_SHIFT	  (ilog2(SCU_MAX_COMPLETION_QUEUE_ENTRIES))
 
 #define SCU_ABSOLUTE_MAX_UNSOLICITED_FRAMES (4096)
-#define SCU_UNSOLICITED_FRAME_BUFFER_SIZE   (1024)
+#define SCU_UNSOLICITED_FRAME_BUFFER_SIZE   (1024U)
 #define SCU_INVALID_FRAME_INDEX             (0xFFFF)
 
 #define SCU_IO_REQUEST_MAX_SGE_SIZE         (0x00FFFFFF)