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Date: Tue, 8 May 2012 21:56:55 -0700
From: Joe Perches <joe@...ches.com>
To: "David S. Miller" <davem@...emloft.net>,
Johannes Berg <johannes@...solutions.net>,
"John W. Linville" <linville@...driver.com>
Cc: linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH 11/13] wireless: Convert compare_ether_addr to ether_addr_equal
Use the new bool function ether_addr_equal to add
some clarity and reduce the likelihood for misuse
of compare_ether_addr for sorting.
I removed a conversion from scan.c/cmp_bss_core
that appears to be a sorting function.
Done via cocci script:
$ cat compare_ether_addr.cocci
@@
expression a,b;
@@
- !compare_ether_addr(a, b)
+ ether_addr_equal(a, b)
@@
expression a,b;
@@
- compare_ether_addr(a, b)
+ !ether_addr_equal(a, b)
@@
expression a,b;
@@
- !ether_addr_equal(a, b) == 0
+ ether_addr_equal(a, b)
@@
expression a,b;
@@
- !ether_addr_equal(a, b) != 0
+ !ether_addr_equal(a, b)
@@
expression a,b;
@@
- ether_addr_equal(a, b) == 0
+ !ether_addr_equal(a, b)
@@
expression a,b;
@@
- ether_addr_equal(a, b) != 0
+ ether_addr_equal(a, b)
@@
expression a,b;
@@
- !!ether_addr_equal(a, b)
+ ether_addr_equal(a, b)
Signed-off-by: Joe Perches <joe@...ches.com>
---
net/wireless/ibss.c | 2 +-
net/wireless/mlme.c | 31 +++++++++++++++----------------
net/wireless/scan.c | 2 +-
net/wireless/util.c | 5 ++---
net/wireless/wext-sme.c | 2 +-
net/wireless/wext-spy.c | 2 +-
6 files changed, 21 insertions(+), 23 deletions(-)
diff --git a/net/wireless/ibss.c b/net/wireless/ibss.c
index 30f20fe..d2a19b0 100644
--- a/net/wireless/ibss.c
+++ b/net/wireless/ibss.c
@@ -473,7 +473,7 @@ int cfg80211_ibss_wext_siwap(struct net_device *dev,
/* fixed already - and no change */
if (wdev->wext.ibss.bssid && bssid &&
- compare_ether_addr(bssid, wdev->wext.ibss.bssid) == 0)
+ ether_addr_equal(bssid, wdev->wext.ibss.bssid))
return 0;
wdev_lock(wdev);
diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
index 6801d96..eb90988 100644
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -101,7 +101,7 @@ void __cfg80211_send_deauth(struct net_device *dev,
ASSERT_WDEV_LOCK(wdev);
if (wdev->current_bss &&
- compare_ether_addr(wdev->current_bss->pub.bssid, bssid) == 0) {
+ ether_addr_equal(wdev->current_bss->pub.bssid, bssid)) {
cfg80211_unhold_bss(wdev->current_bss);
cfg80211_put_bss(&wdev->current_bss->pub);
wdev->current_bss = NULL;
@@ -116,7 +116,7 @@ void __cfg80211_send_deauth(struct net_device *dev,
reason_code = le16_to_cpu(mgmt->u.deauth.reason_code);
- from_ap = compare_ether_addr(mgmt->sa, dev->dev_addr) != 0;
+ from_ap = !ether_addr_equal(mgmt->sa, dev->dev_addr);
__cfg80211_disconnected(dev, NULL, 0, reason_code, from_ap);
} else if (wdev->sme_state == CFG80211_SME_CONNECTING) {
__cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, NULL, 0,
@@ -155,7 +155,7 @@ void __cfg80211_send_disassoc(struct net_device *dev,
return;
if (wdev->current_bss &&
- compare_ether_addr(wdev->current_bss->pub.bssid, bssid) == 0) {
+ ether_addr_equal(wdev->current_bss->pub.bssid, bssid)) {
cfg80211_sme_disassoc(dev, wdev->current_bss);
cfg80211_unhold_bss(wdev->current_bss);
cfg80211_put_bss(&wdev->current_bss->pub);
@@ -166,7 +166,7 @@ void __cfg80211_send_disassoc(struct net_device *dev,
reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code);
- from_ap = compare_ether_addr(mgmt->sa, dev->dev_addr) != 0;
+ from_ap = !ether_addr_equal(mgmt->sa, dev->dev_addr);
__cfg80211_disconnected(dev, NULL, 0, reason_code, from_ap);
}
EXPORT_SYMBOL(__cfg80211_send_disassoc);
@@ -286,7 +286,7 @@ int __cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
return -EINVAL;
if (wdev->current_bss &&
- compare_ether_addr(bssid, wdev->current_bss->pub.bssid) == 0)
+ ether_addr_equal(bssid, wdev->current_bss->pub.bssid))
return -EALREADY;
memset(&req, 0, sizeof(req));
@@ -363,7 +363,7 @@ int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
memset(&req, 0, sizeof(req));
if (wdev->current_bss && prev_bssid &&
- compare_ether_addr(wdev->current_bss->pub.bssid, prev_bssid) == 0) {
+ ether_addr_equal(wdev->current_bss->pub.bssid, prev_bssid)) {
/*
* Trying to reassociate: Allow this to proceed and let the old
* association to be dropped when the new one is completed.
@@ -447,8 +447,7 @@ int __cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
if (local_state_change) {
if (wdev->current_bss &&
- compare_ether_addr(wdev->current_bss->pub.bssid, bssid)
- == 0) {
+ ether_addr_equal(wdev->current_bss->pub.bssid, bssid)) {
cfg80211_unhold_bss(wdev->current_bss);
cfg80211_put_bss(&wdev->current_bss->pub);
wdev->current_bss = NULL;
@@ -497,7 +496,7 @@ static int __cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
req.local_state_change = local_state_change;
req.ie = ie;
req.ie_len = ie_len;
- if (compare_ether_addr(wdev->current_bss->pub.bssid, bssid) == 0)
+ if (ether_addr_equal(wdev->current_bss->pub.bssid, bssid))
req.bss = &wdev->current_bss->pub;
else
return -ENOTCONN;
@@ -760,8 +759,8 @@ int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
break;
}
- if (compare_ether_addr(wdev->current_bss->pub.bssid,
- mgmt->bssid)) {
+ if (!ether_addr_equal(wdev->current_bss->pub.bssid,
+ mgmt->bssid)) {
err = -ENOTCONN;
break;
}
@@ -774,8 +773,8 @@ int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
break;
/* for station, check that DA is the AP */
- if (compare_ether_addr(wdev->current_bss->pub.bssid,
- mgmt->da)) {
+ if (!ether_addr_equal(wdev->current_bss->pub.bssid,
+ mgmt->da)) {
err = -ENOTCONN;
break;
}
@@ -783,11 +782,11 @@ int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
case NL80211_IFTYPE_AP:
case NL80211_IFTYPE_P2P_GO:
case NL80211_IFTYPE_AP_VLAN:
- if (compare_ether_addr(mgmt->bssid, dev->dev_addr))
+ if (!ether_addr_equal(mgmt->bssid, dev->dev_addr))
err = -EINVAL;
break;
case NL80211_IFTYPE_MESH_POINT:
- if (compare_ether_addr(mgmt->sa, mgmt->bssid)) {
+ if (!ether_addr_equal(mgmt->sa, mgmt->bssid)) {
err = -EINVAL;
break;
}
@@ -806,7 +805,7 @@ int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
return err;
}
- if (compare_ether_addr(mgmt->sa, dev->dev_addr) != 0)
+ if (!ether_addr_equal(mgmt->sa, dev->dev_addr))
return -EINVAL;
/* Transmit the Action frame as requested by user space */
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 1442bb6..26d96d7 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -281,7 +281,7 @@ static bool is_bss(struct cfg80211_bss *a,
{
const u8 *ssidie;
- if (bssid && compare_ether_addr(a->bssid, bssid))
+ if (bssid && !ether_addr_equal(a->bssid, bssid))
return false;
if (!ssid)
diff --git a/net/wireless/util.c b/net/wireless/util.c
index 6cba001..3ba366f 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -609,10 +609,9 @@ void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list,
payload = frame->data;
ethertype = (payload[6] << 8) | payload[7];
- if (likely((compare_ether_addr(payload, rfc1042_header) == 0 &&
+ if (likely((ether_addr_equal(payload, rfc1042_header) &&
ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) ||
- compare_ether_addr(payload,
- bridge_tunnel_header) == 0)) {
+ ether_addr_equal(payload, bridge_tunnel_header))) {
/* remove RFC1042 or Bridge-Tunnel
* encapsulation and replace EtherType */
skb_pull(frame, 6);
diff --git a/net/wireless/wext-sme.c b/net/wireless/wext-sme.c
index 7c01c2f..7decbd3 100644
--- a/net/wireless/wext-sme.c
+++ b/net/wireless/wext-sme.c
@@ -276,7 +276,7 @@ int cfg80211_mgd_wext_siwap(struct net_device *dev,
/* fixed already - and no change */
if (wdev->wext.connect.bssid && bssid &&
- compare_ether_addr(bssid, wdev->wext.connect.bssid) == 0)
+ ether_addr_equal(bssid, wdev->wext.connect.bssid))
goto out;
err = __cfg80211_disconnect(rdev, dev,
diff --git a/net/wireless/wext-spy.c b/net/wireless/wext-spy.c
index 5d643a5..33bef22 100644
--- a/net/wireless/wext-spy.c
+++ b/net/wireless/wext-spy.c
@@ -203,7 +203,7 @@ void wireless_spy_update(struct net_device * dev,
/* Update all records that match */
for (i = 0; i < spydata->spy_number; i++)
- if (!compare_ether_addr(address, spydata->spy_address[i])) {
+ if (ether_addr_equal(address, spydata->spy_address[i])) {
memcpy(&(spydata->spy_stat[i]), wstats,
sizeof(struct iw_quality));
match = i;
--
1.7.8.111.gad25c.dirty
--
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