bridge: only provide proxy ARP when CONFIG_INET is enabled
When IPV4 support is disabled, we cannot call arp_send from
the bridge code, which would result in a kernel link error:
net/built-in.o: In function `br_handle_frame_finish':
:(.text+0x59914): undefined reference to `arp_send'
:(.text+0x59a50): undefined reference to `arp_tbl'
This makes the newly added proxy ARP support in the bridge
code depend on the CONFIG_INET symbol and lets the compiler
optimize the code out to avoid the link error.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 958501163d
("bridge: Add support for IEEE 802.11 Proxy ARP")
Cc: Kyeyoon Park <kyeyoonp@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -154,7 +154,8 @@ int br_handle_frame_finish(struct sk_buff *skb)
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dst = NULL;
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dst = NULL;
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if (is_broadcast_ether_addr(dest)) {
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if (is_broadcast_ether_addr(dest)) {
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if (p->flags & BR_PROXYARP &&
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if (IS_ENABLED(CONFIG_INET) &&
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p->flags & BR_PROXYARP &&
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skb->protocol == htons(ETH_P_ARP))
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skb->protocol == htons(ETH_P_ARP))
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br_do_proxy_arp(skb, br, vid);
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br_do_proxy_arp(skb, br, vid);
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