staging:r8188eu: remove ieee80211_get_hdrlen()

ieee80211_get_hdrlen is unused, remove it and all corresponding code.
Signed-off-by: NIvan Safonov <insafonov@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/core/rtw_ieee80211.c

@@ -972,33 +972,6 @@ int ieee80211_is_empty_essid(const char *essid, int essid_len)
 	return 1;
 }
 
-int ieee80211_get_hdrlen(u16 fc)
-{
-	int hdrlen = 24;
-
-	switch (WLAN_FC_GET_TYPE(fc)) {
-	case RTW_IEEE80211_FTYPE_DATA:
-		if (fc & RTW_IEEE80211_STYPE_QOS_DATA)
-			hdrlen += 2;
-		if ((fc & RTW_IEEE80211_FCTL_FROMDS) && (fc & RTW_IEEE80211_FCTL_TODS))
-			hdrlen += 6; /* Addr4 */
-		break;
-	case RTW_IEEE80211_FTYPE_CTL:
-		switch (WLAN_FC_GET_STYPE(fc)) {
-		case RTW_IEEE80211_STYPE_CTS:
-		case RTW_IEEE80211_STYPE_ACK:
-			hdrlen = 10;
-			break;
-		default:
-			hdrlen = 16;
-			break;
-		}
-		break;
-	}
-
-	return hdrlen;
-}
-
 static int rtw_get_cipher_info(struct wlan_network *pnetwork)
 {
 	uint wpa_ielen;

drivers/staging/rtl8188eu/include/ieee80211.h

@@ -308,10 +308,6 @@ enum eap_type {
 
 /* Frame control field constants */
 #define RTW_IEEE80211_FCTL_VERS		0x0003
-#define RTW_IEEE80211_FCTL_FTYPE	0x000c
-#define RTW_IEEE80211_FCTL_STYPE	0x00f0
-#define RTW_IEEE80211_FCTL_TODS		0x0100
-#define RTW_IEEE80211_FCTL_FROMDS	0x0200
 #define RTW_IEEE80211_FCTL_MOREFRAGS	0x0400
 #define RTW_IEEE80211_FCTL_RETRY	0x0800
 #define RTW_IEEE80211_FCTL_PM		0x1000
@@ -321,8 +317,6 @@ enum eap_type {
 #define RTW_IEEE80211_FCTL_CTL_EXT	0x0f00
 
 #define RTW_IEEE80211_FTYPE_MGMT	0x0000
-#define RTW_IEEE80211_FTYPE_CTL		0x0004
-#define RTW_IEEE80211_FTYPE_DATA	0x0008
 #define RTW_IEEE80211_FTYPE_EXT		0x000c
 
 /* management */
@@ -345,8 +339,6 @@ enum eap_type {
 #define RTW_IEEE80211_STYPE_BACK	0x0090
 #define RTW_IEEE80211_STYPE_PSPOLL	0x00A0
 #define RTW_IEEE80211_STYPE_RTS		0x00B0
-#define RTW_IEEE80211_STYPE_CTS		0x00C0
-#define RTW_IEEE80211_STYPE_ACK		0x00D0
 #define RTW_IEEE80211_STYPE_CFEND	0x00E0
 #define RTW_IEEE80211_STYPE_CFENDACK	0x00F0
 
@@ -359,7 +351,6 @@ enum eap_type {
 #define RTW_IEEE80211_STYPE_CFACK	0x0050
 #define RTW_IEEE80211_STYPE_CFPOLL	0x0060
 #define RTW_IEEE80211_STYPE_CFACKPOLL	0x0070
-#define RTW_IEEE80211_STYPE_QOS_DATA	0x0080
 #define RTW_IEEE80211_STYPE_QOS_DATA_CFACK	0x0090
 #define RTW_IEEE80211_STYPE_QOS_DATA_CFPOLL	0x00A0
 #define RTW_IEEE80211_STYPE_QOS_DATA_CFACKPOLL	0x00B0
@@ -408,9 +399,6 @@ struct ieee80211_snap_hdr {
 
 #define SNAP_SIZE sizeof(struct ieee80211_snap_hdr)
 
-#define WLAN_FC_GET_TYPE(fc) ((fc) & RTW_IEEE80211_FCTL_FTYPE)
-#define WLAN_FC_GET_STYPE(fc) ((fc) & RTW_IEEE80211_FCTL_STYPE)
-
 #define WLAN_QC_GET_TID(qc) ((qc) & 0x0f)
 
 #define WLAN_GET_SEQ_FRAG(seq) ((seq) & RTW_IEEE80211_SCTL_FRAG)
@@ -646,7 +634,6 @@ static inline int is_broadcast_mac_addr(const u8 *addr)
 
 /* Baron move to ieee80211.c */
 int ieee80211_is_empty_essid(const char *essid, int essid_len);
-int ieee80211_get_hdrlen(u16 fc);
 
 /* Action category code */
 enum rtw_ieee80211_category {