[SCSI] drivers/scsi/NCR53C9x.c: make a struct static

This patch makes a needlessly global struct static.
Signed-off-by: NAdrian Bunk <bunk@stusta.de>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

drivers/scsi/NCR53C9x.c

@@ -94,7 +94,7 @@ enum {
 };
 
 /* The master ring of all esp hosts we are managing in this driver. */
-struct NCR_ESP *espchain;
+static struct NCR_ESP *espchain;
 int nesps = 0, esps_in_use = 0, esps_running = 0;
 
 irqreturn_t esp_intr(int irq, void *dev_id, struct pt_regs *pregs);

drivers/scsi/sun3x_esp.c

@@ -23,8 +23,6 @@
 #include <asm/dvma.h>
 #include <asm/irq.h>
 
-extern struct NCR_ESP *espchain;
-
 static void dma_barrier(struct NCR_ESP *esp);
 static int  dma_bytes_sent(struct NCR_ESP *esp, int fifo_count);
 static int  dma_can_transfer(struct NCR_ESP *esp, Scsi_Cmnd *sp);