scsi: remove the second argument of k[un]map_atomic()

Signed-off-by: Cong Wang <amwang@redhat.com>
diff --git a/drivers/scsi/libfc/fc_libfc.h b/drivers/scsi/libfc/fc_libfc.h
index c7d0712..c2830cc 100644
--- a/drivers/scsi/libfc/fc_libfc.h
+++ b/drivers/scsi/libfc/fc_libfc.h
@@ -134,6 +134,6 @@
 u32 fc_copy_buffer_to_sglist(void *buf, size_t len,
 			     struct scatterlist *sg,
 			     u32 *nents, size_t *offset,
-			     enum km_type km_type, u32 *crc);
+			     u32 *crc);
 
 #endif /* _FC_LIBFC_H_ */