linux-kernel - [PATCH v2 13/13] staging: r8188eu: check destination address in OnAction

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Date:   Sun, 30 Oct 2022 18:33:26 +0100
From:   Martin Kaiser <martin@...ser.cx>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Larry Finger <Larry.Finger@...inger.net>,
        Phillip Potter <phil@...lpotter.co.uk>,
        Michael Straube <straube.linux@...il.com>,
        Pavel Skripkin <paskripkin@...il.com>,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Martin Kaiser <martin@...ser.cx>
Subject: [PATCH v2 13/13] staging: r8188eu: check destination address in OnAction

All subfunctions of OnAction check if the destination address matches the
local interface's address. It's simpler to move this check to OnAction.

Signed-off-by: Martin Kaiser <martin@...ser.cx>
---
 drivers/staging/r8188eu/core/rtw_mlme_ext.c | 15 +++------------
 1 file changed, 3 insertions(+), 12 deletions(-)

diff --git a/drivers/staging/r8188eu/core/rtw_mlme_ext.c b/drivers/staging/r8188eu/core/rtw_mlme_ext.c
index 93f3d387e92d..e985fc5fc575 100644
--- a/drivers/staging/r8188eu/core/rtw_mlme_ext.c
+++ b/drivers/staging/r8188eu/core/rtw_mlme_ext.c
@@ -1492,9 +1492,6 @@ static void OnAction_back(struct adapter *padapter, struct recv_frame *precv_fra
 	struct mlme_ext_info	*pmlmeinfo = &pmlmeext->mlmext_info;
 	u8 *pframe = precv_frame->rx_data;
 	struct sta_priv *pstapriv = &padapter->stapriv;
-	/* check RA matches or not */
-	if (memcmp(myid(&padapter->eeprompriv), mgmt->da, ETH_ALEN))/* for if1, sta/ap mode */
-		return;
 
 	if ((pmlmeinfo->state & 0x03) != WIFI_FW_AP_STATE)
 		if (!(pmlmeinfo->state & WIFI_FW_ASSOC_SUCCESS))
@@ -3795,10 +3792,6 @@ static void on_action_public(struct adapter *padapter, struct recv_frame *precv_
 {
 	struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)precv_frame->rx_data;
 
-	/* check RA matches or not */
-	if (memcmp(myid(&padapter->eeprompriv), mgmt->da, ETH_ALEN))
-		return;
-
 	/* All members of the action enum start with action_code. */
 	if (mgmt->u.action.u.s1g.action_code == WLAN_PUB_ACTION_VENDOR_SPECIFIC)
 		on_action_public_vendor(precv_frame);
@@ -3808,17 +3801,12 @@ static void on_action_public(struct adapter *padapter, struct recv_frame *precv_
 
 static void OnAction_p2p(struct adapter *padapter, struct recv_frame *precv_frame)
 {
-	struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)precv_frame->rx_data;
 	u8 *frame_body;
 	u8 OUI_Subtype;
 	u8 *pframe = precv_frame->rx_data;
 	uint len = precv_frame->len;
 	struct	wifidirect_info	*pwdinfo = &padapter->wdinfo;
 
-	/* check RA matches or not */
-	if (memcmp(myid(&padapter->eeprompriv), mgmt->da, ETH_ALEN))/* for if1, sta/ap mode */
-		return;
-
 	frame_body = (unsigned char *)(pframe + sizeof(struct ieee80211_hdr_3addr));
 
 	if (be32_to_cpu(*((__be32 *)(frame_body + 1))) != P2POUI)
@@ -3835,6 +3823,9 @@ static void OnAction(struct adapter *padapter, struct recv_frame *precv_frame)
 {
 	struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)precv_frame->rx_data;
 
+	if (memcmp(myid(&padapter->eeprompriv), mgmt->da, ETH_ALEN))
+		return;
+
 	switch (mgmt->u.action.category) {
 	case WLAN_CATEGORY_BACK:
 		OnAction_back(padapter, precv_frame);
-- 
2.30.2