linux-kernel - [PATCH 7/9] staging: r8188eu: use ieee80211

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Date:   Mon,  2 May 2022 22:06:50 +0200
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>,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Martin Kaiser <martin@...ser.cx>
Subject: [PATCH 7/9] staging: r8188eu: use ieee80211_mgmt for action category

Use the struct ieee80211_mgmt from ieee80211.h to read the action
category. There's no need to parse the incoming frame ourselves.

Signed-off-by: Martin Kaiser <martin@...ser.cx>
---
 drivers/staging/r8188eu/core/rtw_mlme_ext.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/r8188eu/core/rtw_mlme_ext.c b/drivers/staging/r8188eu/core/rtw_mlme_ext.c
index 0df89bbdb63a..96b0da90c2ba 100644
--- a/drivers/staging/r8188eu/core/rtw_mlme_ext.c
+++ b/drivers/staging/r8188eu/core/rtw_mlme_ext.c
@@ -3871,15 +3871,9 @@ unsigned int OnAction_p2p(struct adapter *padapter, struct recv_frame *precv_fra
 
 unsigned int OnAction(struct adapter *padapter, struct recv_frame *precv_frame)
 {
-	unsigned char	category;
-	unsigned char	*frame_body;
-	u8 *pframe = precv_frame->rx_data;
-
-	frame_body = (unsigned char *)(pframe + sizeof(struct ieee80211_hdr_3addr));
-
-	category = frame_body[0];
+	struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)precv_frame->rx_data;
 
-	switch (category) {
+	switch (mgmt->u.action.category) {
 	case RTW_WLAN_CATEGORY_BACK:
 		OnAction_back(padapter, precv_frame);
 		break;
-- 
2.30.2