staging: r8188eu: use mgmt to set the sequence number

Use the mgmt structure in issue_action_BA to set the sequence number of
the outgoing frame.

pwlanhdr is now unused, it can be removed.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220524090029.242584-6-martin@kaiser.cxSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/core/rtw_mlme_ext.c

@@ -5375,7 +5375,6 @@ void issue_action_BA(struct adapter *padapter, unsigned char *raddr, unsigned ch
 	struct xmit_frame *pmgntframe;
 	struct pkt_attrib *pattrib;
 	u8 *pframe;
-	struct ieee80211_hdr *pwlanhdr;
 	struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
 	struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
 	struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
@@ -5395,7 +5394,6 @@ void issue_action_BA(struct adapter *padapter, unsigned char *raddr, unsigned ch
 	memset(pmgntframe->buf_addr, 0, WLANHDR_OFFSET + TXDESC_OFFSET);
 
 	pframe = (u8 *)(pmgntframe->buf_addr) + TXDESC_OFFSET;
-	pwlanhdr = (struct ieee80211_hdr *)pframe;
 	mgmt = (struct ieee80211_mgmt *)pframe;
 
 	mgmt->frame_control = cpu_to_le16(IEEE80211_STYPE_ACTION | IEEE80211_FTYPE_MGMT);
@@ -5404,7 +5402,7 @@ void issue_action_BA(struct adapter *padapter, unsigned char *raddr, unsigned ch
 	memcpy(mgmt->sa, myid(&padapter->eeprompriv), ETH_ALEN);
 	memcpy(mgmt->bssid, get_my_bssid(&pmlmeinfo->network), ETH_ALEN);
 
-	SetSeqNum(pwlanhdr, pmlmeext->mgnt_seq);
+	mgmt->seq_ctrl = cpu_to_le16(pmlmeext->mgnt_seq);
 	pmlmeext->mgnt_seq++;
 
 	pframe += sizeof(struct ieee80211_hdr_3addr);