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staging: r8188eu: read back action code from ieee80211_mgmt

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Read the back action code from struct ieee80211_mgmt.

struct ieee80211_mgmt contains an "action" union. Each of its members
starts with an 8-bit action code. Treat the union as addba_req when we
read the action code although we do not yet know if it is an addba_req.
This approach is similar to ieee80211_iface_process_skb.

Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220508161451.115847-6-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Martin Kaiser 2022-05-08 18:14:51 +02:00 committed by Greg Kroah-Hartman
parent e2b1711fb5
commit 073d44eacc
1 changed files with 2 additions and 3 deletions
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5
drivers/staging/r8188eu/core/rtw_mlme_ext.c
View file

@ -1471,7 +1471,6 @@ unsigned int OnAction_back(struct adapter *padapter, struct recv_frame *precv_fr
struct sta_info *psta = NULL;
struct recv_reorder_ctrl *preorder_ctrl;
unsigned char *frame_body;
unsigned char action;
unsigned short tid, status;
struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
@ -1494,8 +1493,8 @@ unsigned int OnAction_back(struct adapter *padapter, struct recv_frame *precv_fr
if (!pmlmeinfo->HT_enable)
return _SUCCESS;
action = frame_body[1];
switch (action) {
/* All union members start with an action code, it's ok to use addba_req. */
switch (mgmt->u.action.u.addba_req.action_code) {
case WLAN_ACTION_ADDBA_REQ:
memcpy(&pmlmeinfo->ADDBA_req, &frame_body[2], sizeof(struct ADDBA_request));
process_addba_req(padapter, (u8 *)&pmlmeinfo->ADDBA_req, mgmt->sa);