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staging: r8188eu: calculate the delba length

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Use offsetofend to calculate the length of the delba message.

We are now calculating all message lengths based on the offset of their
last field. All intermediate updates of pattrib->pktlen can be removed.

Tested-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220602193726.280922-10-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Martin Kaiser 2022-06-02 21:37:24 +02:00 committed by Greg Kroah-Hartman
parent 3d7deed4ec
commit d8f2cff632
1 changed files with 1 additions and 6 deletions
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7
drivers/staging/r8188eu/core/rtw_mlme_ext.c
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@ -5401,10 +5401,7 @@ void issue_action_BA(struct adapter *padapter, unsigned char *raddr, unsigned ch
mgmt->seq_ctrl = cpu_to_le16(pmlmeext->mgnt_seq);
pmlmeext->mgnt_seq++;
pattrib->pktlen = sizeof(struct ieee80211_hdr_3addr);
mgmt->u.action.category = WLAN_CATEGORY_BACK;
pattrib->pktlen++;
switch (action) {
case WLAN_ACTION_ADDBA_REQ:
@ -5448,14 +5445,12 @@ void issue_action_BA(struct adapter *padapter, unsigned char *raddr, unsigned ch
break;
case WLAN_ACTION_DELBA:
mgmt->u.action.u.delba.action_code = WLAN_ACTION_DELBA;
pattrib->pktlen++;
mgmt->u.action.u.delba.params = cpu_to_le16((status & 0x1F) << 3);
params = u16_encode_bits((status & 0x1), IEEE80211_DELBA_PARAM_INITIATOR_MASK);
params |= u16_encode_bits((status >> 1) & 0xF, IEEE80211_DELBA_PARAM_TID_MASK);
mgmt->u.action.u.delba.params = cpu_to_le16(params);
pattrib->pktlen += 2;
mgmt->u.action.u.delba.reason_code = cpu_to_le16(WLAN_STATUS_REQUEST_DECLINED);
pattrib->pktlen += 2;
pattrib->pktlen = offsetofend(struct ieee80211_mgmt, u.action.u.delba.reason_code);
break;
default:
break;