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Subject[PATCH v2] staging: rtl8723bs: Use common packet header constants
From
This driver contains a local version of the rfc1042 header and bridge
tunnel header constants which are available from cfg80211.h, switch to
those.

Signed-off-by: Pascal Terjan <pterjan@google.com>
---
v2: improve description and drop confusing cosmetic changes

drivers/staging/rtl8723bs/core/rtw_recv.c | 9 +++------
drivers/staging/rtl8723bs/include/rtw_recv.h | 2 --
drivers/staging/rtl8723bs/os_dep/recv_linux.c | 5 +++--
3 files changed, 6 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/rtl8723bs/core/rtw_recv.c b/drivers/staging/rtl8723bs/core/rtw_recv.c
index 5245098b9ecf..7e1da0e35812 100644
--- a/drivers/staging/rtl8723bs/core/rtw_recv.c
+++ b/drivers/staging/rtl8723bs/core/rtw_recv.c
@@ -10,14 +10,11 @@
#include <rtw_debug.h>
#include <linux/jiffies.h>
#include <rtw_recv.h>
+#include <net/cfg80211.h>

static u8 SNAP_ETH_TYPE_IPX[2] = {0x81, 0x37};
static u8 SNAP_ETH_TYPE_APPLETALK_AARP[2] = {0x80, 0xf3};

-u8 rtw_rfc1042_header[] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
-/* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */
-u8 rtw_bridge_tunnel_header[] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
-
static void rtw_signal_stat_timer_hdl(struct timer_list *t);

void _rtw_init_sta_recv_priv(struct sta_recv_priv *psta_recvpriv)
@@ -1625,11 +1622,11 @@ sint wlanhdr_to_ethhdr(union recv_frame *precvframe)
psnap_type = ptr+pattrib->hdrlen + pattrib->iv_len+SNAP_SIZE;
/* convert hdr + possible LLC headers into Ethernet header */
/* eth_type = (psnap_type[0] << 8) | psnap_type[1]; */
- 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))) ||
/* eth_type != ETH_P_AARP && eth_type != ETH_P_IPX) || */
- !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
diff --git a/drivers/staging/rtl8723bs/include/rtw_recv.h b/drivers/staging/rtl8723bs/include/rtw_recv.h
index 98c3e92245b7..a851b818ef0e 100644
--- a/drivers/staging/rtl8723bs/include/rtw_recv.h
+++ b/drivers/staging/rtl8723bs/include/rtw_recv.h
@@ -38,8 +38,6 @@
#define RX_MAX_QUEUE 2

#define MAX_SUBFRAME_COUNT 64
-extern u8 rtw_rfc1042_header[];
-extern u8 rtw_bridge_tunnel_header[];

/* for Rx reordering buffer control */
struct recv_reorder_ctrl
diff --git a/drivers/staging/rtl8723bs/os_dep/recv_linux.c b/drivers/staging/rtl8723bs/os_dep/recv_linux.c
index 2a7b9922b1d4..eb4d1c3008fe 100644
--- a/drivers/staging/rtl8723bs/os_dep/recv_linux.c
+++ b/drivers/staging/rtl8723bs/os_dep/recv_linux.c
@@ -9,6 +9,7 @@
#include <drv_types.h>
#include <rtw_debug.h>
#include <linux/jiffies.h>
+#include <net/cfg80211.h>

void rtw_os_free_recvframe(union recv_frame *precvframe)
{
@@ -71,9 +72,9 @@ _pkt *rtw_os_alloc_msdu_pkt(union recv_frame *prframe, u16 nSubframe_Length, u8
eth_type = RTW_GET_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
--
2.27.0.rc0.183.gde8f92d652-goog
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