mac80211: fix alignment issue with compare_ether_addr()

This addresses an alignment issue with compare_ether_addr().
The addresses passed to compare_ether_addr should be two bytes aligned.
It may function properly in x86 platform. However may not work properly
on IA-64 or ARM processor.

This also fixes a typo in mlme.c where the sk_buff struct name is incorect.
Though sizeof() works for any incorrect structure pointer name as its just
a pointer length that we want, lets just fix it.

Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 33a356e..841278f 100644 (file)
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1325,7 +1325,7 @@ static void ieee80211_sta_process_addba_request(struct net_device *dev,
 
        /* prepare reordering buffer */
        tid_agg_rx->reorder_buf =
-               kmalloc(buf_size * sizeof(struct sk_buf *), GFP_ATOMIC);
+               kmalloc(buf_size * sizeof(struct sk_buff *), GFP_ATOMIC);
        if (!tid_agg_rx->reorder_buf) {
                if (net_ratelimit())
                        printk(KERN_ERR "can not allocate reordering buffer "
@@ -1334,7 +1334,7 @@ static void ieee80211_sta_process_addba_request(struct net_device *dev,
                goto end;
        }
        memset(tid_agg_rx->reorder_buf, 0,
-               buf_size * sizeof(struct sk_buf *));
+               buf_size * sizeof(struct sk_buff *));
 
        if (local->ops->ampdu_action)
                ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_RX_START,

diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 1958bfb..0941e5d 100644 (file)
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1091,7 +1091,7 @@ ieee80211_data_to_8023(struct ieee80211_rx_data *rx)
        u16 fc, hdrlen, ethertype;
        u8 *payload;
        u8 dst[ETH_ALEN];
-       u8 src[ETH_ALEN];
+       u8 src[ETH_ALEN] __aligned(2);
        struct sk_buff *skb = rx->skb;
        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
        DECLARE_MAC_BUF(mac);
@@ -1234,7 +1234,7 @@ ieee80211_data_to_8023(struct ieee80211_rx_data *rx)
  */
 static bool ieee80211_frame_allowed(struct ieee80211_rx_data *rx)
 {
-       static const u8 pae_group_addr[ETH_ALEN]
+       static const u8 pae_group_addr[ETH_ALEN] __aligned(2)
                = { 0x01, 0x80, 0xC2, 0x00, 0x00, 0x03 };
        struct ethhdr *ehdr = (struct ethhdr *) rx->skb->data;
 

diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 131e9e6..4e97b26 100644 (file)
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -34,11 +34,11 @@ void *mac80211_wiphy_privid = &mac80211_wiphy_privid;
 
 /* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */
 /* Ethernet-II snap header (RFC1042 for most EtherTypes) */
-const unsigned char rfc1042_header[] =
+const unsigned char rfc1042_header[] __aligned(2) =
        { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
 
 /* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */
-const unsigned char bridge_tunnel_header[] =
+const unsigned char bridge_tunnel_header[] __aligned(2) =
        { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };