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Date: Tue, 10 Mar 2015 16:41:25 +0800 From: Ying Xue <ying.xue@...driver.com> To: <davem@...emloft.net> CC: <jon.maloy@...csson.com>, <Paul.Gortmaker@...driver.com>, <erik.hugne@...csson.com>, <fengguang.wu@...el.com>, <netdev@...r.kernel.org>, <tipc-discussion@...ts.sourceforge.net>, <kbuild-all@...org> Subject: [PATCH net-next v2] tipc: fix undefined __ipv6_sock_mc_join compile error When CONFIG_IPV6 option is disabled, below error will appear while building TIPC module: ERROR: "__ipv6_sock_mc_join" [net/tipc/tipc.ko] undefined! make[1]: *** [__modpost] Error 1 make: *** [net/tipc/tipc.ko] Error 1 This is because we don't check whether or not the CONFIG_IPV6 is enabled when calling __ipv6_sock_mc_join(). In addition, especially when TIPC=y, TIPC_MEDIA_UDP=y, and IPV6=m, TIPC module is also unable to be successfully built. Therefore, we add a dependency condition like (IPV6 || IPV6=n) to avoid the error. Fixes: d0f91938bede ("tipc: add ip/udp media type") Reported-by: Wu Fengguang <fengguang.wu@...el.com> Cc: Kbuild test robot <kbuild-all@...org> Signed-off-by: Ying Xue <ying.xue@...driver.com> --- v2: Fix another compile error when TIPC=y, TIPC_MEDIA_UDP=y, and IPV6=m net/tipc/Kconfig | 1 + net/tipc/udp_media.c | 2 ++ 2 files changed, 3 insertions(+) diff --git a/net/tipc/Kconfig b/net/tipc/Kconfig index c25a3a1..6f217ba 100644 --- a/net/tipc/Kconfig +++ b/net/tipc/Kconfig @@ -5,6 +5,7 @@ menuconfig TIPC tristate "The TIPC Protocol" depends on INET + depends on (IPV6 || IPV6=n) ---help--- The Transparent Inter Process Communication (TIPC) protocol is specially designed for intra cluster communication. This protocol diff --git a/net/tipc/udp_media.c b/net/tipc/udp_media.c index fc2fb11..6763002 100644 --- a/net/tipc/udp_media.c +++ b/net/tipc/udp_media.c @@ -247,10 +247,12 @@ static int enable_mcast(struct udp_bearer *ub, struct udp_media_addr *remote) mreqn.imr_multiaddr = remote->ipv4; mreqn.imr_ifindex = ub->ifindex; err = __ip_mc_join_group(sk, &mreqn); +#if IS_ENABLED(CONFIG_IPV6) } else { if (!ipv6_addr_is_multicast(&remote->ipv6)) return 0; err = __ipv6_sock_mc_join(sk, ub->ifindex, &remote->ipv6); +#endif } return err; } -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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