staging: rtl8723au: Make rtw_get_capability23a_from_ie() return __le 16 *

This should make sparse happier.
Reported-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8723au/core/rtw_ieee80211.c

@@ -1004,8 +1004,8 @@ void rtw_get_bcn_info23a(struct wlan_network *pnetwork)
 	unsigned int		len;
 	unsigned char		*p;
 
-	memcpy(&cap, rtw_get_capability23a_from_ie(pnetwork->network.IEs), 2);
-	cap = le16_to_cpu(cap);
+	cap = get_unaligned_le16(
+		rtw_get_capability23a_from_ie(pnetwork->network.IEs));
 	if (cap & WLAN_CAPABILITY_PRIVACY) {
 		bencrypt = 1;
 		pnetwork->network.Privacy = 1;

drivers/staging/rtl8723au/core/rtw_mlme.c

@@ -333,9 +333,9 @@ void rtw23a_roaming(struct rtw_adapter *padapter,
 	spin_unlock_bh(&pmlmepriv->lock);
 }
 
-u8 *rtw_get_capability23a_from_ie(u8 *ie)
+__le16 *rtw_get_capability23a_from_ie(u8 *ie)
 {
-	return ie + 8 + 2;
+	return (__le16 *)(ie + 8 + 2);
 }
 
 u16 rtw_get_capability23a(struct wlan_bssid_ex *bss)
@@ -416,11 +416,8 @@ int is_same_network23a(struct wlan_bssid_ex *src, struct wlan_bssid_ex *dst)
 {
 	u16 s_cap, d_cap;
 
-	memcpy(&s_cap, rtw_get_capability23a_from_ie(src->IEs), 2);
-	memcpy(&d_cap, rtw_get_capability23a_from_ie(dst->IEs), 2);
-
-	s_cap = le16_to_cpu(s_cap);
-	d_cap = le16_to_cpu(d_cap);
+	s_cap = get_unaligned_le16(rtw_get_capability23a_from_ie(src->IEs));
+	d_cap = get_unaligned_le16(rtw_get_capability23a_from_ie(dst->IEs));
 
 	return ((src->Ssid.ssid_len == dst->Ssid.ssid_len) &&
 		/*	(src->Configuration.DSConfig == dst->Configuration.DSConfig) && */

drivers/staging/rtl8723au/include/rtw_mlme.h

@@ -469,7 +469,7 @@ int rtw_if_up23a(struct rtw_adapter *padapter);
 
 int rtw_linked_check(struct rtw_adapter *padapter);
 
-u8 *rtw_get_capability23a_from_ie(u8 *ie);
+__le16 *rtw_get_capability23a_from_ie(u8 *ie);
 u8 *rtw_get_beacon_interval23a_from_ie(u8 *ie);
 
 

drivers/staging/rtl8723au/os_dep/ioctl_cfg80211.c

@@ -292,7 +292,7 @@ static int rtw_cfg80211_inform_bss(struct rtw_adapter *padapter,
 	    le16_to_cpu(*(u16 *)
 			rtw_get_beacon_interval23a_from_ie(pnetwork->network.IEs));
 	notify_capability =
-	    le16_to_cpu(*(u16 *)
+		get_unaligned_le16(
 			rtw_get_capability23a_from_ie(pnetwork->network.IEs));
 
 	notify_ie = pnetwork->network.IEs + _FIXED_IE_LENGTH_;