zd1211rw: do not ratelimit no-ops

It is rather confusing to see this in the log:
[  695.606877] __ratelimit: 40 callbacks suppressed
[  700.726878] __ratelimit: 40 callbacks suppressed

without ever seeing any actual message. This is because
zd1211rw doesn't compile out the net_ratelimit() call
properly if debugging is not enabled.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/zd1211rw/zd_def.h

@@ -33,8 +33,13 @@ typedef u16 __nocast zd_addr_t;
 #ifdef DEBUG
 #  define dev_dbg_f(dev, fmt, args...) \
 	  dev_printk_f(KERN_DEBUG, dev, fmt, ## args)
+#  define dev_dbg_f_limit(dev, fmt, args...) do {\
+	if (net_ratelimit())
+		dev_printk_f(KERN_DEBUG, dev, fmt, ## args)
+} while (0)
 #else
 #  define dev_dbg_f(dev, fmt, args...) do { (void)(dev); } while (0)
+#  define dev_dbg_f_limit(dev, fmt, args...) do { (void)(dev); } while (0)
 #endif /* DEBUG */
 
 #ifdef DEBUG

drivers/net/wireless/zd1211rw/zd_mac.c

@@ -793,10 +793,9 @@ static void zd_process_intr(struct work_struct *work)
 	struct zd_mac *mac = container_of(work, struct zd_mac, process_intr);
 
 	int_status = le16_to_cpu(*(__le16 *)(mac->intr_buffer+4));
-	if (int_status & INT_CFG_NEXT_BCN) {
-		if (net_ratelimit())
-			dev_dbg_f(zd_mac_dev(mac), "INT_CFG_NEXT_BCN\n");
-	} else
+	if (int_status & INT_CFG_NEXT_BCN)
+		dev_dbg_f_limit(zd_mac_dev(mac), "INT_CFG_NEXT_BCN\n");
+	else
 		dev_dbg_f(zd_mac_dev(mac), "Unsupported interrupt\n");
 
 	zd_chip_enable_hwint(&mac->chip);