staging: rtl8188eu: fix sparse signedness warnings in rtw_get_ie

Changed the type of len from (int *) to (unsigned int *) in the
function rtw_get_ie(..) and wherever this function is called to
suppress signedness mismatch warnings of the type-

drivers/staging/rtl8188eu//core/rtw_ap.c:78:60: warning: incorrect type
in argument 3 (different signedness)
drivers/staging/rtl8188eu//core/rtw_ap.c:78:60:    expected int *len
drivers/staging/rtl8188eu//core/rtw_ap.c:78:60:    got unsigned int
*<noident>

Signed-off-by: Aishwarya Pant <aishpant@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/core/rtw_ap.c

@@ -719,7 +719,7 @@ static void start_bss_network(struct adapter *padapter, u8 *pbuf)
 	u8 val8, cur_channel, cur_bwmode, cur_ch_offset;
 	u16 bcn_interval;
 	u32	acparm;
-	int	ie_len;
+	uint	ie_len;
 	struct registry_priv	 *pregpriv = &padapter->registrypriv;
 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 	struct security_priv *psecuritypriv = &padapter->securitypriv;

drivers/staging/rtl8188eu/core/rtw_ieee80211.c

@@ -158,7 +158,7 @@ u8 *rtw_set_ie
 /*----------------------------------------------------------------------------
 index: the information element id index, limit is the limit for search
 -----------------------------------------------------------------------------*/
-u8 *rtw_get_ie(u8 *pbuf, int index, int *len, int limit)
+u8 *rtw_get_ie(u8 *pbuf, int index, uint *len, int limit)
 {
 	int tmp, i;
 	u8 *p;
@@ -293,7 +293,7 @@ int rtw_generate_ie(struct registry_priv *pregistrypriv)
 
 unsigned char *rtw_get_wpa_ie(unsigned char *pie, int *wpa_ie_len, int limit)
 {
-	int len;
+	uint len;
 	u16 val16;
 	__le16 le_tmp;
 	unsigned char wpa_oui_type[] = {0x00, 0x50, 0xf2, 0x01};
@@ -331,7 +331,7 @@ check_next_ie:
 	return NULL;
 }
 
-unsigned char *rtw_get_wpa2_ie(unsigned char *pie, int *rsn_ie_len, int limit)
+unsigned char *rtw_get_wpa2_ie(unsigned char *pie, uint *rsn_ie_len, int limit)
 {
 
 	return rtw_get_ie(pie, _WPA2_IE_ID_, rsn_ie_len, limit);
@@ -1000,7 +1000,7 @@ int ieee80211_get_hdrlen(u16 fc)
 
 static int rtw_get_cipher_info(struct wlan_network *pnetwork)
 {
-	int wpa_ielen;
+	uint wpa_ielen;
 	unsigned char *pbuf;
 	int group_cipher = 0, pairwise_cipher = 0, is8021x = 0;
 	int ret = _FAIL;
@@ -1045,7 +1045,7 @@ void rtw_get_bcn_info(struct wlan_network *pnetwork)
 	__le16 le_tmp;
 	u16 wpa_len = 0, rsn_len = 0;
 	struct HT_info_element *pht_info = NULL;
-	int len;
+	uint len;
 	unsigned char		*p;
 
 	memcpy(&le_tmp, rtw_get_capability_from_ie(pnetwork->network.IEs), 2);

drivers/staging/rtl8188eu/core/rtw_mlme_ext.c

@@ -286,7 +286,7 @@ static s32 dump_mgntframe_and_wait_ack(struct adapter *padapter,
 static int update_hidden_ssid(u8 *ies, u32 ies_len, u8 hidden_ssid_mode)
 {
 	u8 *ssid_ie;
-	int ssid_len_ori;
+	uint ssid_len_ori;
 	int len_diff = 0;
 
 	ssid_ie = rtw_get_ie(ies,  WLAN_EID_SSID, &ssid_len_ori, ies_len);
@@ -1786,7 +1786,7 @@ static void issue_action_BSSCoexistPacket(struct adapter *padapter)
 		plist = phead->next;
 
 		while (phead != plist) {
-			int len;
+			uint len;
 			u8 *p;
 			struct wlan_bssid_ex *pbss_network;
 
@@ -2556,7 +2556,7 @@ static unsigned int OnProbeReq(struct adapter *padapter,
 	    !check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE|WIFI_AP_STATE))
 		return _SUCCESS;
 
-	p = rtw_get_ie(pframe + WLAN_HDR_A3_LEN + _PROBEREQ_IE_OFFSET_, _SSID_IE_, (int *)&ielen,
+	p = rtw_get_ie(pframe + WLAN_HDR_A3_LEN + _PROBEREQ_IE_OFFSET_, _SSID_IE_, &ielen,
 			len - WLAN_HDR_A3_LEN - _PROBEREQ_IE_OFFSET_);
 
 	/* check (wildcard) SSID */
@@ -2793,7 +2793,7 @@ static unsigned int OnAuth(struct adapter *padapter,
 			/* checking for challenging txt... */
 			DBG_88E("checking for challenging txt...\n");
 
-			p = rtw_get_ie(pframe + WLAN_HDR_A3_LEN + 4 + _AUTH_IE_OFFSET_, _CHLGETXT_IE_, (int *)&ie_len,
+			p = rtw_get_ie(pframe + WLAN_HDR_A3_LEN + 4 + _AUTH_IE_OFFSET_, _CHLGETXT_IE_, &ie_len,
 					len - WLAN_HDR_A3_LEN - _AUTH_IE_OFFSET_ - 4);
 
 			if ((p == NULL) || (ie_len <= 0)) {
@@ -2887,7 +2887,7 @@ static unsigned int OnAuthClient(struct adapter *padapter,
 	if (seq == 2) {
 		if (pmlmeinfo->auth_algo == dot11AuthAlgrthm_Shared) {
 			/*  legendary shared system */
-			p = rtw_get_ie(pframe + WLAN_HDR_A3_LEN + _AUTH_IE_OFFSET_, _CHLGETXT_IE_, (int *)&len,
+			p = rtw_get_ie(pframe + WLAN_HDR_A3_LEN + _AUTH_IE_OFFSET_, _CHLGETXT_IE_, &len,
 				pkt_len - WLAN_HDR_A3_LEN - _AUTH_IE_OFFSET_);
 
 			if (p == NULL)
@@ -2931,7 +2931,7 @@ static unsigned int OnAssocReq(struct adapter *padapter,
 	struct sta_info	*pstat;
 	unsigned char		reassoc, *p, *pos, *wpa_ie;
 	unsigned char WMM_IE[] = {0x00, 0x50, 0xf2, 0x02, 0x00, 0x01};
-	int		i, ie_len, wpa_ie_len, left;
+	int		i, wpa_ie_len, left;
 	unsigned char		supportRate[16];
 	int					supportRateNum;
 	unsigned short		status = _STATS_SUCCESSFUL_;
@@ -2943,7 +2943,7 @@ static unsigned int OnAssocReq(struct adapter *padapter,
 	struct wlan_bssid_ex *cur = &(pmlmeinfo->network);
 	struct sta_priv *pstapriv = &padapter->stapriv;
 	u8 *pframe = precv_frame->pkt->data;
-	uint pkt_len = precv_frame->pkt->len;
+	uint ie_len, pkt_len = precv_frame->pkt->len;
 
 	if ((pmlmeinfo->state&0x03) != WIFI_FW_AP_STATE)
 		return _FAIL;

drivers/staging/rtl8188eu/core/rtw_xmit.c

@@ -1139,9 +1139,8 @@ s32 rtw_put_snap(u8 *data, u16 h_proto)
 
 void rtw_update_protection(struct adapter *padapter, u8 *ie, uint ie_len)
 {
-	uint	protection;
+	uint	protection, erp_len;
 	u8	*perp;
-	int	 erp_len;
 	struct	xmit_priv *pxmitpriv = &padapter->xmitpriv;
 	struct	registry_priv *pregistrypriv = &padapter->registrypriv;
 

drivers/staging/rtl8188eu/include/ieee80211.h

@@ -857,12 +857,12 @@ enum secondary_ch_offset {
 	SCB = 3,  /* secondary channel below */
 };
 
-u8 *rtw_get_ie(u8 *pbuf, int index, int *len, int limit);
+u8 *rtw_get_ie(u8 *pbuf, int index, uint *len, int limit);
 
 void rtw_set_supported_rate(u8 *SupportedRates, uint mode);
 
 unsigned char *rtw_get_wpa_ie(unsigned char *pie, int *wpa_ie_len, int limit);
-unsigned char *rtw_get_wpa2_ie(unsigned char *pie, int *rsn_ie_len, int limit);
+unsigned char *rtw_get_wpa2_ie(unsigned char *pie, uint *rsn_ie_len, int limit);
 int rtw_get_wpa_cipher_suite(u8 *s);
 int rtw_get_wpa2_cipher_suite(u8 *s);
 int rtw_get_wapi_ie(u8 *in_ie, uint in_len, u8 *wapi_ie, u16 *wapi_len);