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Message-ID: <20210609085650.1269008-1-liushixin2@huawei.com>
Date: Wed, 9 Jun 2021 16:56:49 +0800
From: Liu Shixin <liushixin2@...wei.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Joe Perches <joe@...ches.com>,
Fabio Aiuto <fabioaiuto83@...il.com>
CC: <linux-staging@...ts.linux.dev>, <linux-kernel@...r.kernel.org>,
"Liu Shixin" <liushixin2@...wei.com>
Subject: [PATCH -next v2 1/2] staging: rtl8188eu: Use is_{zero/broadcast}_ether_addr() instead of memcmp()
Simplify the code by using is_{zero/broadcast}_ether_addr() instead of
directly using memcmp() to determine if the ethernet address is all
zeros or broadcast address.
Signed-off-by: Liu Shixin <liushixin2@...wei.com>
---
v1->v2:
1. Add the benefit of this patch in changelog.
2. Change the subject line according to fabio's reminder.
drivers/staging/rtl8188eu/core/rtw_mlme.c | 4 ++--
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c | 7 +++----
drivers/staging/rtl8188eu/core/rtw_recv.c | 11 ++++++-----
drivers/staging/rtl8188eu/hal/odm.c | 5 +++--
4 files changed, 14 insertions(+), 13 deletions(-)
diff --git a/drivers/staging/rtl8188eu/core/rtw_mlme.c b/drivers/staging/rtl8188eu/core/rtw_mlme.c
index ba73ac5325e2..01bbfd29488f 100644
--- a/drivers/staging/rtl8188eu/core/rtw_mlme.c
+++ b/drivers/staging/rtl8188eu/core/rtw_mlme.c
@@ -19,6 +19,7 @@
#include <wlan_bssdef.h>
#include <rtw_ioctl_set.h>
#include <linux/vmalloc.h>
+#include <linux/etherdevice.h>
extern const u8 MCS_rate_1R[16];
@@ -179,9 +180,8 @@ struct wlan_network *rtw_find_network(struct __queue *scanned_queue, u8 *addr)
{
struct list_head *phead, *plist;
struct wlan_network *pnetwork = NULL;
- u8 zero_addr[ETH_ALEN] = {0, 0, 0, 0, 0, 0};
- if (!memcmp(zero_addr, addr, ETH_ALEN)) {
+ if (is_zero_ether_addr(addr)) {
pnetwork = NULL;
goto exit;
}
diff --git a/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c b/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
index b4d81d3a856c..8c1bc04dd830 100644
--- a/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
+++ b/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
@@ -7,6 +7,7 @@
#define _RTW_MLME_EXT_C_
#include <linux/ieee80211.h>
+#include <linux/etherdevice.h>
#include <asm/unaligned.h>
#include <osdep_service.h>
@@ -4048,13 +4049,12 @@ static void _mgt_dispatcher(struct adapter *padapter,
struct mlme_handler *ptable,
struct recv_frame *precv_frame)
{
- u8 bc_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
u8 *pframe = precv_frame->pkt->data;
if (ptable->func) {
/* receive the frames that ra(a1) is my address or ra(a1) is bc address. */
if (memcmp(GetAddr1Ptr(pframe), myid(&padapter->eeprompriv), ETH_ALEN) &&
- memcmp(GetAddr1Ptr(pframe), bc_addr, ETH_ALEN))
+ !is_broadcast_ether_addr(GetAddr1Ptr(pframe)))
return;
ptable->func(padapter, precv_frame);
}
@@ -4067,7 +4067,6 @@ void mgt_dispatcher(struct adapter *padapter, struct recv_frame *precv_frame)
#ifdef CONFIG_88EU_AP_MODE
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
#endif
- u8 bc_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
u8 *pframe = precv_frame->pkt->data;
struct sta_info *psta = rtw_get_stainfo(&padapter->stapriv, GetAddr2Ptr(pframe));
@@ -4085,7 +4084,7 @@ void mgt_dispatcher(struct adapter *padapter, struct recv_frame *precv_frame)
/* receive the frames that ra(a1) is my address or ra(a1) is bc address. */
if (memcmp(GetAddr1Ptr(pframe), myid(&padapter->eeprompriv), ETH_ALEN) &&
- memcmp(GetAddr1Ptr(pframe), bc_addr, ETH_ALEN))
+ !is_broadcast_ether_addr(GetAddr1Ptr(pframe)))
return;
ptable = mlme_sta_tbl;
diff --git a/drivers/staging/rtl8188eu/core/rtw_recv.c b/drivers/staging/rtl8188eu/core/rtw_recv.c
index e79cfdd4bf90..cb0629fefbc5 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 <linux/etherdevice.h>
#include <net/cfg80211.h>
#define ETHERNET_HEADER_SIZE 14 /* Ethernet Header Length */
@@ -651,8 +652,8 @@ static int sta2sta_data_frame(struct adapter *adapter,
goto exit;
}
- if (!memcmp(pattrib->bssid, "\x0\x0\x0\x0\x0\x0", ETH_ALEN) ||
- !memcmp(mybssid, "\x0\x0\x0\x0\x0\x0", ETH_ALEN) ||
+ if (is_zero_ether_addr(pattrib->bssid) ||
+ is_zero_ether_addr(mybssid) ||
memcmp(pattrib->bssid, mybssid, ETH_ALEN)) {
ret = _FAIL;
goto exit;
@@ -734,9 +735,9 @@ static int ap2sta_data_frame(struct adapter *adapter,
}
/* check BSSID */
- if (!memcmp(pattrib->bssid, "\x0\x0\x0\x0\x0\x0", ETH_ALEN) ||
- !memcmp(mybssid, "\x0\x0\x0\x0\x0\x0", ETH_ALEN) ||
- (memcmp(pattrib->bssid, mybssid, ETH_ALEN))) {
+ if (is_zero_ether_addr(pattrib->bssid) ||
+ is_zero_ether_addr(mybssid) ||
+ (memcmp(pattrib->bssid, mybssid, ETH_ALEN))) {
RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
(" %s: compare BSSID fail ; BSSID=%pM\n", __func__, (pattrib->bssid)));
RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("mybssid=%pM\n", (mybssid)));
diff --git a/drivers/staging/rtl8188eu/hal/odm.c b/drivers/staging/rtl8188eu/hal/odm.c
index 8348e02b4c86..041ee2965add 100644
--- a/drivers/staging/rtl8188eu/hal/odm.c
+++ b/drivers/staging/rtl8188eu/hal/odm.c
@@ -5,6 +5,8 @@
*
******************************************************************************/
+#include <linux/etherdevice.h>
+
#include "odm_precomp.h"
#include "phy.h"
@@ -893,7 +895,6 @@ void odm_RSSIMonitorCheckCE(struct odm_dm_struct *pDM_Odm)
u8 sta_cnt = 0;
u32 PWDB_rssi[NUM_STA] = {0};/* 0~15]:MACID, [16~31]:PWDB_rssi */
struct sta_info *psta;
- u8 bcast_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
if (!check_fwstate(&Adapter->mlmepriv, _FW_LINKED))
return;
@@ -902,7 +903,7 @@ void odm_RSSIMonitorCheckCE(struct odm_dm_struct *pDM_Odm)
psta = pDM_Odm->pODM_StaInfo[i];
if (IS_STA_VALID(psta) &&
(psta->state & WIFI_ASOC_STATE) &&
- memcmp(psta->hwaddr, bcast_addr, ETH_ALEN) &&
+ !is_broadcast_ether_addr(psta->hwaddr) &&
memcmp(psta->hwaddr, myid(&Adapter->eeprompriv), ETH_ALEN)) {
if (psta->rssi_stat.UndecoratedSmoothedPWDB < tmpEntryMinPWDB)
tmpEntryMinPWDB = psta->rssi_stat.UndecoratedSmoothedPWDB;
--
2.18.0.huawei.25
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