diff options
| author | Simon Wunderlich <sw@simonwunderlich.de> | 2013-12-02 23:38:31 +0400 |
|---|---|---|
| committer | Antonio Quartulli <antonio@meshcoding.com> | 2013-12-28 15:51:16 +0400 |
| commit | a40d9b075c21f06872de3f05cc2eb3d06665e2ff (patch) | |
| tree | 85aefae654246aa4f89e046bb0bca6b5b85b76f6 /net/batman-adv/routing.c | |
| parent | 46b76e0b8b5e21fa5a2387d6f72b193514e7f722 (diff) | |
| download | linux-a40d9b075c21f06872de3f05cc2eb3d06665e2ff.tar.xz | |
batman-adv: fix header alignment by unrolling batadv_header
The size of the batadv_header of 3 is problematic on some architectures
which automatically pad all structures to a 32 bit boundary. To not lose
performance by packing this struct, better embed it into the various
host structures.
Reported-by: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
Diffstat (limited to 'net/batman-adv/routing.c')
| -rw-r--r-- | net/batman-adv/routing.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c index d4114d775ad6..5b52d718a6eb 100644 --- a/net/batman-adv/routing.c +++ b/net/batman-adv/routing.c @@ -308,7 +308,7 @@ static int batadv_recv_my_icmp_packet(struct batadv_priv *bat_priv, memcpy(icmph->dst, icmph->orig, ETH_ALEN); memcpy(icmph->orig, primary_if->net_dev->dev_addr, ETH_ALEN); icmph->msg_type = BATADV_ECHO_REPLY; - icmph->header.ttl = BATADV_TTL; + icmph->ttl = BATADV_TTL; res = batadv_send_skb_to_orig(skb, orig_node, NULL); if (res != NET_XMIT_DROP) @@ -363,7 +363,7 @@ static int batadv_recv_icmp_ttl_exceeded(struct batadv_priv *bat_priv, memcpy(icmp_packet->icmph.orig, primary_if->net_dev->dev_addr, ETH_ALEN); icmp_packet->icmph.msg_type = BATADV_TTL_EXCEEDED; - icmp_packet->icmph.header.ttl = BATADV_TTL; + icmp_packet->icmph.ttl = BATADV_TTL; if (batadv_send_skb_to_orig(skb, orig_node, NULL) != NET_XMIT_DROP) ret = NET_RX_SUCCESS; @@ -434,7 +434,7 @@ int batadv_recv_icmp_packet(struct sk_buff *skb, return batadv_recv_my_icmp_packet(bat_priv, skb); /* TTL exceeded */ - if (icmph->header.ttl < 2) + if (icmph->ttl < 2) return batadv_recv_icmp_ttl_exceeded(bat_priv, skb); /* get routing information */ @@ -449,7 +449,7 @@ int batadv_recv_icmp_packet(struct sk_buff *skb, icmph = (struct batadv_icmp_header *)skb->data; /* decrement ttl */ - icmph->header.ttl--; + icmph->ttl--; /* route it */ if (batadv_send_skb_to_orig(skb, orig_node, recv_if) != NET_XMIT_DROP) @@ -709,7 +709,7 @@ static int batadv_route_unicast_packet(struct sk_buff *skb, unicast_packet = (struct batadv_unicast_packet *)skb->data; /* TTL exceeded */ - if (unicast_packet->header.ttl < 2) { + if (unicast_packet->ttl < 2) { pr_debug("Warning - can't forward unicast packet from %pM to %pM: ttl exceeded\n", ethhdr->h_source, unicast_packet->dest); goto out; @@ -727,9 +727,9 @@ static int batadv_route_unicast_packet(struct sk_buff *skb, /* decrement ttl */ unicast_packet = (struct batadv_unicast_packet *)skb->data; - unicast_packet->header.ttl--; + unicast_packet->ttl--; - switch (unicast_packet->header.packet_type) { + switch (unicast_packet->packet_type) { case BATADV_UNICAST_4ADDR: hdr_len = sizeof(struct batadv_unicast_4addr_packet); break; @@ -970,7 +970,7 @@ int batadv_recv_unicast_packet(struct sk_buff *skb, unicast_packet = (struct batadv_unicast_packet *)skb->data; unicast_4addr_packet = (struct batadv_unicast_4addr_packet *)skb->data; - is4addr = unicast_packet->header.packet_type == BATADV_UNICAST_4ADDR; + is4addr = unicast_packet->packet_type == BATADV_UNICAST_4ADDR; /* the caller function should have already pulled 2 bytes */ if (is4addr) hdr_size = sizeof(*unicast_4addr_packet); @@ -1160,7 +1160,7 @@ int batadv_recv_bcast_packet(struct sk_buff *skb, if (batadv_is_my_mac(bat_priv, bcast_packet->orig)) goto out; - if (bcast_packet->header.ttl < 2) + if (bcast_packet->ttl < 2) goto out; orig_node = batadv_orig_hash_find(bat_priv, bcast_packet->orig); |