diff options
| author | YOSHIFUJI Hideaki / 吉藤英明 <yoshfuji@linux-ipv6.org> | 2010-03-15 21:51:18 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-03-16 14:34:23 -0700 |
| commit | 32dec5dd0233ebffa9cae25ce7ba6daeb7df4467 (patch) | |
| tree | b086e355e9afa2cb6ab51988175afd619787029b /net/bridge/br_private.h | |
| parent | 858a18a6a2f74e8f0e5b2e9671d4b74694aba708 (diff) | |
bridge br_multicast: Don't refer to BR_INPUT_SKB_CB(skb)->mrouters_only without IGMP snooping.
Without CONFIG_BRIDGE_IGMP_SNOOPING,
BR_INPUT_SKB_CB(skb)->mrouters_only is not appropriately
initialized, so we can see garbage.
A clear option to fix this is to set it even without that
config, but we cannot optimize out the branch.
Let's introduce a macro that returns value of mrouters_only
and let it return 0 without CONFIG_BRIDGE_IGMP_SNOOPING.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge/br_private.h')
| -rw-r--r-- | net/bridge/br_private.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h index bfb8feb310a..846d7d1e207 100644 --- a/net/bridge/br_private.h +++ b/net/bridge/br_private.h @@ -206,12 +206,20 @@ struct net_bridge struct br_input_skb_cb { struct net_device *brdev; +#ifdef CONFIG_BRIDGE_IGMP_SNOOPING int igmp; int mrouters_only; +#endif }; #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) +#ifdef CONFIG_BRIDGE_IGMP_SNOOPING +# define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) +#else +# define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) +#endif + extern struct notifier_block br_device_notifier; extern const u8 br_group_address[ETH_ALEN]; |