bnx2: In bnx2_set_mac_link() return void rather then int

bnx2_set_mac_link() doesn't need to return any error codes.  And
all the callers don't check the return code. It is safe to
change the return type to a void.
Signed-off-by: NBenjamin Li <benli@broadcom.com>
Signed-off-by: NMichael Chan <mchan@broadcom.com>
Acked-by: NJeff Garzik <jeff@garzik.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/bnx2.c

@@ -1127,7 +1127,7 @@ bnx2_init_all_rx_contexts(struct bnx2 *bp)
 	}
 }
 
-static int
+static void
 bnx2_set_mac_link(struct bnx2 *bp)
 {
 	u32 val;
@@ -1193,8 +1193,6 @@ bnx2_set_mac_link(struct bnx2 *bp)
 
 	if (CHIP_NUM(bp) == CHIP_NUM_5709)
 		bnx2_init_all_rx_contexts(bp);
-
-	return 0;
 }
 
 static void