diff mbox

[06/12] wireless: Convert simple uses of a static const Ethernet broadcast address

Message ID 79196f134a513d50968e8e208a0e56b3c0236ee3.1522479607.git.joe@perches.com (mailing list archive)
State Not Applicable
Delegated to: Kalle Valo
Headers show

Commit Message

Joe Perches March 31, 2018, 7:05 a.m. UTC
Use the new ether_broadcast_addr global instead to save some object code.

Signed-off-by: Joe Perches <joe@perches.com>
---
 drivers/net/wireless/admtek/adm8211.c           | 3 +--
 drivers/net/wireless/ath/carl9170/mac.c         | 4 +---
 drivers/net/wireless/broadcom/b43/main.c        | 3 +--
 drivers/net/wireless/marvell/mwifiex/cfg80211.c | 3 +--
 drivers/net/wireless/realtek/rtlwifi/core.c     | 5 ++---
 drivers/net/wireless/rndis_wlan.c               | 6 +-----
 drivers/net/wireless/ti/wl1251/main.c           | 5 +----
 drivers/net/wireless/ti/wlcore/main.c           | 5 +----
 8 files changed, 9 insertions(+), 25 deletions(-)

Comments

Ping-Ke Shih March 31, 2018, 2:01 p.m. UTC | #1
On Sat, 2018-03-31 at 00:05 -0700, Joe Perches wrote:
> Use the new ether_broadcast_addr global instead to save some object code.

> 

> Signed-off-by: Joe Perches <joe@perches.com>

> ---

>  drivers/net/wireless/admtek/adm8211.c           | 3 +--

>  drivers/net/wireless/ath/carl9170/mac.c         | 4 +---

>  drivers/net/wireless/broadcom/b43/main.c        | 3 +--

>  drivers/net/wireless/marvell/mwifiex/cfg80211.c | 3 +--

>  drivers/net/wireless/realtek/rtlwifi/core.c     | 5 ++---

>  drivers/net/wireless/rndis_wlan.c               | 6 +-----

>  drivers/net/wireless/ti/wl1251/main.c           | 5 +----

>  drivers/net/wireless/ti/wlcore/main.c           | 5 +----

>  8 files changed, 9 insertions(+), 25 deletions(-)

> 

>  

> diff --git a/drivers/net/wireless/realtek/rtlwifi/core.c

> b/drivers/net/wireless/realtek/rtlwifi/core.c

> index cfea57efa7f4..8c534a93dad5 100644

> --- a/drivers/net/wireless/realtek/rtlwifi/core.c

> +++ b/drivers/net/wireless/realtek/rtlwifi/core.c

> @@ -1527,7 +1527,6 @@ static int rtl_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,

>  	bool wep_only = false;

>  	int err = 0;

>  	u8 mac_addr[ETH_ALEN];

> -	u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };

>  

>  	rtlpriv->btcoexist.btc_info.in_4way = false;

>  

> @@ -1544,7 +1543,7 @@ static int rtl_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,

>  	RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,

>  		 "%s hardware based encryption for keyidx: %d, mac: %pM\n",

>  		  cmd == SET_KEY ? "Using" : "Disabling", key->keyidx,

> -		  sta ? sta->addr : bcast_addr);

> +		  sta ? sta->addr : ether_broadcast_addr);

>  	rtlpriv->sec.being_setkey = true;

>  	rtl_ips_nic_on(hw);

>  	mutex_lock(&rtlpriv->locks.conf_mutex);

> @@ -1649,7 +1648,7 @@ static int rtl_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,

>  			memcpy(rtlpriv->sec.key_buf[key_idx],

>  			       key->key, key->keylen);

>  			rtlpriv->sec.key_len[key_idx] = key->keylen;

> -			memcpy(mac_addr, bcast_addr, ETH_ALEN);

> +			memcpy(mac_addr, ether_broadcast_addr, ETH_ALEN);


Use ether_addr_copy(mac_addr, ether_broadcast_addr) ?


>  		} else {	/* pairwise key */

>  			RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,

>  				 "set pairwise key\n");
Joe Perches March 31, 2018, 2:33 p.m. UTC | #2
On Sat, 2018-03-31 at 14:01 +0000, Pkshih wrote:
> On Sat, 2018-03-31 at 00:05 -0700, Joe Perches wrote:
> > Use the new ether_broadcast_addr global instead to save some object code.
[]
> > diff --git a/drivers/net/wireless/realtek/rtlwifi/core.c
[]
> > @@ -1649,7 +1648,7 @@ static int rtl_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
> >  			memcpy(rtlpriv->sec.key_buf[key_idx],
> >  			       key->key, key->keylen);
> >  			rtlpriv->sec.key_len[key_idx] = key->keylen;
> > -			memcpy(mac_addr, bcast_addr, ETH_ALEN);
> > +			memcpy(mac_addr, ether_broadcast_addr, ETH_ALEN);
> 
> Use ether_addr_copy(mac_addr, ether_broadcast_addr) ?

This should use eth_broadcast_addr(mac_addr) instead.

There are similar conversion still possible in the tree.
One day.
Kalle Valo April 5, 2018, 12:39 p.m. UTC | #3
Joe Perches <joe@perches.com> writes:

> Use the new ether_broadcast_addr global instead to save some object code.
>
> Signed-off-by: Joe Perches <joe@perches.com>
> ---
>  drivers/net/wireless/admtek/adm8211.c           | 3 +--
>  drivers/net/wireless/ath/carl9170/mac.c         | 4 +---
>  drivers/net/wireless/broadcom/b43/main.c        | 3 +--
>  drivers/net/wireless/marvell/mwifiex/cfg80211.c | 3 +--
>  drivers/net/wireless/realtek/rtlwifi/core.c     | 5 ++---
>  drivers/net/wireless/rndis_wlan.c               | 6 +-----
>  drivers/net/wireless/ti/wl1251/main.c           | 5 +----
>  drivers/net/wireless/ti/wlcore/main.c           | 5 +----
>  8 files changed, 9 insertions(+), 25 deletions(-)

It would be really helpful if you could CLEARLY document in the patches
(or in the cover letter but then you need to cc all parties) to what
tree the patches are meant for. Otherwise I, and other maintainers as
well, need to waste time trying to guess what's your plan.

I will now drop the four wireless patches from my queue. So if you want
to me to take them please resubmit.
Kalle Valo April 5, 2018, 12:48 p.m. UTC | #4
Kalle Valo <kvalo@codeaurora.org> writes:

> Joe Perches <joe@perches.com> writes:
>
>> Use the new ether_broadcast_addr global instead to save some object code.
>>
>> Signed-off-by: Joe Perches <joe@perches.com>
>> ---
>>  drivers/net/wireless/admtek/adm8211.c           | 3 +--
>>  drivers/net/wireless/ath/carl9170/mac.c         | 4 +---
>>  drivers/net/wireless/broadcom/b43/main.c        | 3 +--
>>  drivers/net/wireless/marvell/mwifiex/cfg80211.c | 3 +--
>>  drivers/net/wireless/realtek/rtlwifi/core.c     | 5 ++---
>>  drivers/net/wireless/rndis_wlan.c               | 6 +-----
>>  drivers/net/wireless/ti/wl1251/main.c           | 5 +----
>>  drivers/net/wireless/ti/wlcore/main.c           | 5 +----
>>  8 files changed, 9 insertions(+), 25 deletions(-)
>
> It would be really helpful if you could CLEARLY document in the patches
> (or in the cover letter but then you need to cc all parties) to what
> tree the patches are meant for. Otherwise I, and other maintainers as
> well, need to waste time trying to guess what's your plan.

Forgot to mention that for me the best approach is to have the tree name
in subject, just like Dave and Linus both recommend:

[PATCH 06/12 wireless-drivers-next] wireless: Convert simple uses of a static const Ethernet broadcast address

This way I can immeaditely see from patchwork to which tree the patch
should go which helps tremendously. And if the tree name is too long you
can always shorten it to w-d and w-d-next.
diff mbox

Patch

diff --git a/drivers/net/wireless/admtek/adm8211.c b/drivers/net/wireless/admtek/adm8211.c
index 3b0802fc5bf5..0aa2d114d5b3 100644
--- a/drivers/net/wireless/admtek/adm8211.c
+++ b/drivers/net/wireless/admtek/adm8211.c
@@ -1354,7 +1354,6 @@  static void adm8211_configure_filter(struct ieee80211_hw *dev,
 				     unsigned int *total_flags,
 				     u64 multicast)
 {
-	static const u8 bcast[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
 	struct adm8211_priv *priv = dev->priv;
 	unsigned int new_flags;
 	u32 mc_filter[2];
@@ -1385,7 +1384,7 @@  static void adm8211_configure_filter(struct ieee80211_hw *dev,
 		__clear_bit(IEEE80211_HW_RX_INCLUDES_FCS, dev->flags);
 
 	if (*total_flags & FIF_BCN_PRBRESP_PROMISC)
-		adm8211_set_bssid(dev, bcast);
+		adm8211_set_bssid(dev, ether_broadcast_addr);
 	else
 		adm8211_set_bssid(dev, priv->bssid);
 
diff --git a/drivers/net/wireless/ath/carl9170/mac.c b/drivers/net/wireless/ath/carl9170/mac.c
index 7d4a72dc98db..b1c608db047c 100644
--- a/drivers/net/wireless/ath/carl9170/mac.c
+++ b/drivers/net/wireless/ath/carl9170/mac.c
@@ -476,10 +476,8 @@  int carl9170_upload_key(struct ar9170 *ar, const u8 id, const u8 *mac,
 			const int keylen)
 {
 	struct carl9170_set_key_cmd key = { };
-	static const u8 bcast[ETH_ALEN] = {
-		0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
 
-	mac = mac ? : bcast;
+	mac = mac ? : ether_broadcast_addr;
 
 	key.user = cpu_to_le16(id);
 	key.keyId = cpu_to_le16(keyidx);
diff --git a/drivers/net/wireless/broadcom/b43/main.c b/drivers/net/wireless/broadcom/b43/main.c
index b37e7391f55d..f23d60064691 100644
--- a/drivers/net/wireless/broadcom/b43/main.c
+++ b/drivers/net/wireless/broadcom/b43/main.c
@@ -4185,7 +4185,6 @@  static int b43_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 	u8 algorithm;
 	u8 index;
 	int err;
-	static const u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
 
 	if (modparam_nohwcrypt)
 		return -ENOSPC; /* User disabled HW-crypto */
@@ -4293,7 +4292,7 @@  static int b43_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 		b43dbg(wl, "%s hardware based encryption for keyidx: %d, "
 		       "mac: %pM\n",
 		       cmd == SET_KEY ? "Using" : "Disabling", key->keyidx,
-		       sta ? sta->addr : bcast_addr);
+		       sta ? sta->addr : ether_broadcast_addr);
 		b43_dump_keymemory(dev);
 	}
 	mutex_unlock(&wl->mutex);
diff --git a/drivers/net/wireless/marvell/mwifiex/cfg80211.c b/drivers/net/wireless/marvell/mwifiex/cfg80211.c
index 7f7e9de2db1c..400a4a67d545 100644
--- a/drivers/net/wireless/marvell/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/marvell/mwifiex/cfg80211.c
@@ -174,7 +174,6 @@  mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
 static int
 mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
 {
-	u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
 	u16 pkt_len;
 	u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
 
@@ -191,7 +190,7 @@  mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
 
 	/* Add packet data and address4 */
 	skb_put_data(skb, buf, sizeof(struct ieee80211_hdr_3addr));
-	skb_put_data(skb, addr, ETH_ALEN);
+	skb_put_data(skb, ether_broadcast_addr, ETH_ALEN);
 	skb_put_data(skb, buf + sizeof(struct ieee80211_hdr_3addr),
 		     len - sizeof(struct ieee80211_hdr_3addr));
 
diff --git a/drivers/net/wireless/realtek/rtlwifi/core.c b/drivers/net/wireless/realtek/rtlwifi/core.c
index cfea57efa7f4..8c534a93dad5 100644
--- a/drivers/net/wireless/realtek/rtlwifi/core.c
+++ b/drivers/net/wireless/realtek/rtlwifi/core.c
@@ -1527,7 +1527,6 @@  static int rtl_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 	bool wep_only = false;
 	int err = 0;
 	u8 mac_addr[ETH_ALEN];
-	u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
 
 	rtlpriv->btcoexist.btc_info.in_4way = false;
 
@@ -1544,7 +1543,7 @@  static int rtl_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 	RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
 		 "%s hardware based encryption for keyidx: %d, mac: %pM\n",
 		  cmd == SET_KEY ? "Using" : "Disabling", key->keyidx,
-		  sta ? sta->addr : bcast_addr);
+		  sta ? sta->addr : ether_broadcast_addr);
 	rtlpriv->sec.being_setkey = true;
 	rtl_ips_nic_on(hw);
 	mutex_lock(&rtlpriv->locks.conf_mutex);
@@ -1649,7 +1648,7 @@  static int rtl_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 			memcpy(rtlpriv->sec.key_buf[key_idx],
 			       key->key, key->keylen);
 			rtlpriv->sec.key_len[key_idx] = key->keylen;
-			memcpy(mac_addr, bcast_addr, ETH_ALEN);
+			memcpy(mac_addr, ether_broadcast_addr, ETH_ALEN);
 		} else {	/* pairwise key */
 			RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
 				 "set pairwise key\n");
diff --git a/drivers/net/wireless/rndis_wlan.c b/drivers/net/wireless/rndis_wlan.c
index 9935bd09db1f..da0c4f790dd0 100644
--- a/drivers/net/wireless/rndis_wlan.c
+++ b/drivers/net/wireless/rndis_wlan.c
@@ -1021,11 +1021,7 @@  static int set_bssid(struct usbnet *usbdev, const u8 *bssid)
 
 static int clear_bssid(struct usbnet *usbdev)
 {
-	static const u8 broadcast_mac[ETH_ALEN] = {
-		0xff, 0xff, 0xff, 0xff, 0xff, 0xff
-	};
-
-	return set_bssid(usbdev, broadcast_mac);
+	return set_bssid(usbdev, ether_broadcast_addr);
 }
 
 static int get_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
diff --git a/drivers/net/wireless/ti/wl1251/main.c b/drivers/net/wireless/ti/wl1251/main.c
index bd8641ad953b..442a557ad2e2 100644
--- a/drivers/net/wireless/ti/wl1251/main.c
+++ b/drivers/net/wireless/ti/wl1251/main.c
@@ -887,9 +887,6 @@  static int wl1251_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 	const u8 *addr;
 	int ret;
 
-	static const u8 bcast_addr[ETH_ALEN] =
-		{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
-
 	wl1251_debug(DEBUG_MAC80211, "mac80211 set key");
 
 	wl_cmd = kzalloc(sizeof(*wl_cmd), GFP_KERNEL);
@@ -898,7 +895,7 @@  static int wl1251_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 		goto out;
 	}
 
-	addr = sta ? sta->addr : bcast_addr;
+	addr = sta ? sta->addr : ether_broadcast_addr;
 
 	wl1251_debug(DEBUG_CRYPT, "CMD: 0x%x", cmd);
 	wl1251_dump(DEBUG_CRYPT, "ADDR: ", addr, ETH_ALEN);
diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index 3a51ab116e79..a4a408f48eeb 100644
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -3392,11 +3392,8 @@  static int wl1271_set_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
 			return ret;
 	} else {
 		const u8 *addr;
-		static const u8 bcast_addr[ETH_ALEN] = {
-			0xff, 0xff, 0xff, 0xff, 0xff, 0xff
-		};
 
-		addr = sta ? sta->addr : bcast_addr;
+		addr = sta ? sta->addr : ether_broadcast_addr;
 
 		if (is_zero_ether_addr(addr)) {
 			/* We dont support TX only encryption */