[SCSI] wd33c93: cleanups

- #include <asm/irq.h> for getting the prototypes of {dis,en}able_irq()

- make the needlessly global wd33c93_setup() static
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

drivers/scsi/wd33c93.c

@@ -89,6 +89,8 @@
 #include <scsi/scsi_device.h>
 #include <scsi/scsi_host.h>
 
+#include <asm/irq.h>
+
 #include "wd33c93.h"
 
 #define optimum_sx_per(hostdata) (hostdata)->sx_table[1].period_ns
@@ -1762,7 +1764,7 @@ static char setup_buffer[SETUP_BUFFER_SIZE];
 static char setup_used[MAX_SETUP_ARGS];
 static int done_setup = 0;
 
-int
+static int
 wd33c93_setup(char *str)
 {
 	int i;