staging: rtl8723au: OnAssocReq23a(): use ieee80211_mgmt to calculate offset

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/rtl8723au/core/rtw_mlme_ext.c b/drivers/staging/rtl8723au/core/rtw_mlme_ext.c
index 8c48ca4..0277ee6 100644 (file)
--- a/drivers/staging/rtl8723au/core/rtw_mlme_ext.c
+++ b/drivers/staging/rtl8723au/core/rtw_mlme_ext.c
@@ -1304,11 +1304,11 @@ OnAssocReq23a(struct rtw_adapter *padapter, struct recv_frame *precv_frame)
        if (ieee80211_is_assoc_req(mgmt->frame_control)) {
                reassoc = 0;
                pos = mgmt->u.assoc_req.variable;
-               left -= _ASOCREQ_IE_OFFSET_;
+               left -= offsetof(struct ieee80211_mgmt, u.assoc_req.variable);
        } else { /*  WIFI_REASSOCREQ */
                reassoc = 1;
                pos = mgmt->u.reassoc_req.variable;
-               left -= _REASOCREQ_IE_OFFSET_;
+               left -= offsetof(struct ieee80211_mgmt, u.reassoc_req.variable);
        }
 
        if (left < 0) {