Hi all, After merging the net-next tree, today's linux-next build (powerpc pseries_le_defconfig) failed like this: net/bridge/br_multicast.c: In function '__br_multicast_enable_port': net/bridge/br_multicast.c:1743:3: error: implicit declaration of function 'br_ip6_multicast_add_router'; did you mean 'br_ip4_multicast_add_router'? [-Werror=implicit-function-declaration] 1743 | br_ip6_multicast_add_router(br, port); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ | br_ip4_multicast_add_router net/bridge/br_multicast.c: At top level: net/bridge/br_multicast.c:2804:13: warning: conflicting types for 'br_ip6_multicast_add_router' 2804 | static void br_ip6_multicast_add_router(struct net_bridge *br, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ net/bridge/br_multicast.c:2804:13: error: static declaration of 'br_ip6_multicast_add_router' follows non-static declaration net/bridge/br_multicast.c:1743:3: note: previous implicit declaration of 'br_ip6_multicast_add_router' was here 1743 | br_ip6_multicast_add_router(br, port); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ Caused by commit a3c02e769efe ("net: bridge: mcast: split multicast router state for IPv4 and IPv6") # CONFIG_IPV6 is not set I have reverted that commit for today (along with commit 3b85f9ba3480 ("net: bridge: mcast: export multicast router presence adjacent to a port") in case it depends on a3c02e769efe). -- Cheers, Stephen Rothwell