linux-kernel - [PATCH] staging: rtl8188eu: use common packet header constants

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Message-Id: <20200619160328.22776-1-straube.linux@gmail.com>
Date:   Fri, 19 Jun 2020 18:03:28 +0200
From:   Michael Straube <straube.linux@...il.com>
To:     gregkh@...uxfoundation.org
Cc:     Larry.Finger@...inger.net, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org,
        Michael Straube <straube.linux@...il.com>
Subject: [PATCH] staging: rtl8188eu: use common packet header constants

The driver replicates the definitions of rfc1042_header and
bridge_tunnel_header available from cfg80211.h. Use the common
ones from cfg80211.h.

Signed-off-by: Michael Straube <straube.linux@...il.com>
---
 drivers/staging/rtl8188eu/core/rtw_recv.c | 18 +++++-------------
 1 file changed, 5 insertions(+), 13 deletions(-)

diff --git a/drivers/staging/rtl8188eu/core/rtw_recv.c b/drivers/staging/rtl8188eu/core/rtw_recv.c
index a036ef104198..0257e56b551a 100644
--- a/drivers/staging/rtl8188eu/core/rtw_recv.c
+++ b/drivers/staging/rtl8188eu/core/rtw_recv.c
@@ -15,6 +15,7 @@
 #include <mon.h>
 #include <wifi.h>
 #include <linux/vmalloc.h>
+#include <net/cfg80211.h>
 
 #define ETHERNET_HEADER_SIZE	14	/*  Ethernet Header Length */
 #define LLC_HEADER_SIZE			6	/*  LLC Header Length */
@@ -22,15 +23,6 @@
 static u8 SNAP_ETH_TYPE_IPX[2] = {0x81, 0x37};
 static u8 SNAP_ETH_TYPE_APPLETALK_AARP[2] = {0x80, 0xf3};
 
-/* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */
-static u8 rtw_bridge_tunnel_header[] = {
-	0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8
-};
-
-static u8 rtw_rfc1042_header[] = {
-	0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00
-};
-
 static void rtw_signal_stat_timer_hdl(struct timer_list *t);
 
 void _rtw_init_sta_recv_priv(struct sta_recv_priv *psta_recvpriv)
@@ -1277,10 +1269,10 @@ static int wlanhdr_to_ethhdr(struct recv_frame *precvframe)
 	psnap = (struct ieee80211_snap_hdr *)(ptr+pattrib->hdrlen + pattrib->iv_len);
 	psnap_type = ptr+pattrib->hdrlen + pattrib->iv_len+SNAP_SIZE;
 	/* convert hdr + possible LLC headers into Ethernet header */
-	if ((!memcmp(psnap, rtw_rfc1042_header, SNAP_SIZE) &&
+	if ((!memcmp(psnap, rfc1042_header, SNAP_SIZE) &&
 	     memcmp(psnap_type, SNAP_ETH_TYPE_IPX, 2) &&
 	     memcmp(psnap_type, SNAP_ETH_TYPE_APPLETALK_AARP, 2)) ||
-	     !memcmp(psnap, rtw_bridge_tunnel_header, SNAP_SIZE)) {
+	     !memcmp(psnap, bridge_tunnel_header, SNAP_SIZE)) {
 		/* remove RFC1042 or Bridge-Tunnel encapsulation and replace EtherType */
 		bsnaphdr = true;
 	} else {
@@ -1560,9 +1552,9 @@ static int amsdu_to_msdu(struct adapter *padapter, struct recv_frame *prframe)
 		/* convert hdr + possible LLC headers into Ethernet header */
 		eth_type = get_unaligned_be16(&sub_skb->data[6]);
 		if (sub_skb->len >= 8 &&
-		    ((!memcmp(sub_skb->data, rtw_rfc1042_header, SNAP_SIZE) &&
+		    ((!memcmp(sub_skb->data, rfc1042_header, SNAP_SIZE) &&
 			  eth_type != ETH_P_AARP && eth_type != ETH_P_IPX) ||
-			 !memcmp(sub_skb->data, rtw_bridge_tunnel_header, SNAP_SIZE))) {
+			 !memcmp(sub_skb->data, bridge_tunnel_header, SNAP_SIZE))) {
 			/* remove RFC1042 or Bridge-Tunnel encapsulation and replace EtherType */
 			skb_pull(sub_skb, SNAP_SIZE);
 			memcpy(skb_push(sub_skb, ETH_ALEN), pattrib->src, ETH_ALEN);
-- 
2.27.0