diff --git a/drivers/net/wireless/rtl8188eu/include/ieee80211.h b/drivers/net/wireless/rtl8188eu/include/ieee80211.h
index fc293c45759882..0898cd47e40c3d 100755
--- a/drivers/net/wireless/rtl8188eu/include/ieee80211.h
+++ b/drivers/net/wireless/rtl8188eu/include/ieee80211.h
@@ -1314,18 +1314,18 @@ enum ieee80211_state {
 (((Addr[2]) & 0xff) == 0xff) && (((Addr[3]) & 0xff) == 0xff) && (((Addr[4]) & 0xff) == 0xff) && \
 (((Addr[5]) & 0xff) == 0xff))
 #else
-extern __inline int is_multicast_mac_addr(const u8 *addr)
+static __inline int is_multicast_mac_addr(const u8 *addr)
 {
         return ((addr[0] != 0xff) && (0x01 & addr[0]));
 }
 
-extern __inline int is_broadcast_mac_addr(const u8 *addr)
+static __inline int is_broadcast_mac_addr(const u8 *addr)
 {
 	return ((addr[0] == 0xff) && (addr[1] == 0xff) && (addr[2] == 0xff) &&   \
 		(addr[3] == 0xff) && (addr[4] == 0xff) && (addr[5] == 0xff));
 }
 
-extern __inline int is_zero_mac_addr(const u8 *addr)
+static __inline int is_zero_mac_addr(const u8 *addr)
 {
 	return ((addr[0] == 0x00) && (addr[1] == 0x00) && (addr[2] == 0x00) &&   \
 		(addr[3] == 0x00) && (addr[4] == 0x00) && (addr[5] == 0x00));
diff --git a/drivers/net/wireless/rtl8189es/include/ieee80211.h b/drivers/net/wireless/rtl8189es/include/ieee80211.h
index fc293c45759882..0898cd47e40c3d 100755
--- a/drivers/net/wireless/rtl8189es/include/ieee80211.h
+++ b/drivers/net/wireless/rtl8189es/include/ieee80211.h
@@ -1314,18 +1314,18 @@ enum ieee80211_state {
 (((Addr[2]) & 0xff) == 0xff) && (((Addr[3]) & 0xff) == 0xff) && (((Addr[4]) & 0xff) == 0xff) && \
 (((Addr[5]) & 0xff) == 0xff))
 #else
-extern __inline int is_multicast_mac_addr(const u8 *addr)
+static __inline int is_multicast_mac_addr(const u8 *addr)
 {
         return ((addr[0] != 0xff) && (0x01 & addr[0]));
 }
 
-extern __inline int is_broadcast_mac_addr(const u8 *addr)
+static __inline int is_broadcast_mac_addr(const u8 *addr)
 {
 	return ((addr[0] == 0xff) && (addr[1] == 0xff) && (addr[2] == 0xff) &&   \
 		(addr[3] == 0xff) && (addr[4] == 0xff) && (addr[5] == 0xff));
 }
 
-extern __inline int is_zero_mac_addr(const u8 *addr)
+static __inline int is_zero_mac_addr(const u8 *addr)
 {
 	return ((addr[0] == 0x00) && (addr[1] == 0x00) && (addr[2] == 0x00) &&   \
 		(addr[3] == 0x00) && (addr[4] == 0x00) && (addr[5] == 0x00));
diff --git a/drivers/net/wireless/rtl8723bs/include/ieee80211.h b/drivers/net/wireless/rtl8723bs/include/ieee80211.h
index fc293c45759882..0898cd47e40c3d 100755
--- a/drivers/net/wireless/rtl8723bs/include/ieee80211.h
+++ b/drivers/net/wireless/rtl8723bs/include/ieee80211.h
@@ -1314,18 +1314,18 @@ enum ieee80211_state {
 (((Addr[2]) & 0xff) == 0xff) && (((Addr[3]) & 0xff) == 0xff) && (((Addr[4]) & 0xff) == 0xff) && \
 (((Addr[5]) & 0xff) == 0xff))
 #else
-extern __inline int is_multicast_mac_addr(const u8 *addr)
+static __inline int is_multicast_mac_addr(const u8 *addr)
 {
         return ((addr[0] != 0xff) && (0x01 & addr[0]));
 }
 
-extern __inline int is_broadcast_mac_addr(const u8 *addr)
+static __inline int is_broadcast_mac_addr(const u8 *addr)
 {
 	return ((addr[0] == 0xff) && (addr[1] == 0xff) && (addr[2] == 0xff) &&   \
 		(addr[3] == 0xff) && (addr[4] == 0xff) && (addr[5] == 0xff));
 }
 
-extern __inline int is_zero_mac_addr(const u8 *addr)
+static __inline int is_zero_mac_addr(const u8 *addr)
 {
 	return ((addr[0] == 0x00) && (addr[1] == 0x00) && (addr[2] == 0x00) &&   \
 		(addr[3] == 0x00) && (addr[4] == 0x00) && (addr[5] == 0x00));
diff --git a/drivers/staging/rtl8712/ieee80211.h b/drivers/staging/rtl8712/ieee80211.h
index 3c0092b7de0941..1e7b55bc956852 100644
--- a/drivers/staging/rtl8712/ieee80211.h
+++ b/drivers/staging/rtl8712/ieee80211.h
@@ -734,7 +734,7 @@ enum ieee80211_state {
 #define IEEE_G            (1<<2)
 #define IEEE_MODE_MASK    (IEEE_A|IEEE_B|IEEE_G)
 
-extern inline int ieee80211_is_empty_essid(const char *essid, int essid_len)
+static inline int ieee80211_is_empty_essid(const char *essid, int essid_len)
 {
 	/* Single white space is for Linksys APs */
 	if (essid_len == 1 && essid[0] == ' ')
@@ -748,7 +748,7 @@ extern inline int ieee80211_is_empty_essid(const char *essid, int essid_len)
 	return 1;
 }
 
-extern inline int ieee80211_get_hdrlen(u16 fc)
+static inline int ieee80211_get_hdrlen(u16 fc)
 {
 	int hdrlen = 24;