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batman-adv: Reduce preprocessor checks in multicast.c

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It is not necessary to disable these code sections in case other kernel
features are disabled. Instead the IS_ENABLED tests can be added directly
in the code and the compiler can remove the unnecessary code parts during
its optimization run.

Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
This commit is contained in:
Sven Eckelmann 2017-02-22 17:16:39 +01:00 committed by Simon Wunderlich
parent b96a898188
commit c1bacea053
1 changed files with 5 additions and 7 deletions
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12
net/batman-adv/multicast.c
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@ -494,9 +494,8 @@ static bool batadv_mcast_mla_tvlv_update(struct batadv_priv *bat_priv)
if (!bridged)
goto update;
#if !IS_ENABLED(CONFIG_BRIDGE_IGMP_SNOOPING)
pr_warn_once("No bridge IGMP snooping compiled - multicast optimizations disabled\n");
#endif
if (!IS_ENABLED(CONFIG_BRIDGE_IGMP_SNOOPING))
pr_warn_once("No bridge IGMP snooping compiled - multicast optimizations disabled\n");
querier4.exists = br_multicast_has_querier_anywhere(dev, ETH_P_IP);
querier4.shadowing = br_multicast_has_querier_adjacent(dev, ETH_P_IP);
@ -671,7 +670,6 @@ static int batadv_mcast_forw_mode_check_ipv4(struct batadv_priv *bat_priv,
return 0;
}
#if IS_ENABLED(CONFIG_IPV6)
/**
* batadv_mcast_is_report_ipv6 - check for MLD reports
* @skb: the ethernet frame destined for the mesh
@ -736,7 +734,6 @@ static int batadv_mcast_forw_mode_check_ipv6(struct batadv_priv *bat_priv,
return 0;
}
#endif
/**
* batadv_mcast_forw_mode_check - check for optimized forwarding potential
@ -765,11 +762,12 @@ static int batadv_mcast_forw_mode_check(struct batadv_priv *bat_priv,
case ETH_P_IP:
return batadv_mcast_forw_mode_check_ipv4(bat_priv, skb,
is_unsnoopable);
#if IS_ENABLED(CONFIG_IPV6)
case ETH_P_IPV6:
if (!IS_ENABLED(CONFIG_IPV6))
return -EINVAL;
return batadv_mcast_forw_mode_check_ipv6(bat_priv, skb,
is_unsnoopable);
#endif
default:
return -EINVAL;
}