netdev - [PATCH 1/2] udp_diag: Make it module when ipv6 is a module

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Date:	Sat, 10 Dec 2011 13:33:43 +0400
From:	Pavel Emelyanov <xemul@...allels.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
CC:	David Miller <davem@...emloft.net>,
	Linux Netdev List <netdev@...r.kernel.org>
Subject: [PATCH 1/2] udp_diag: Make it module when ipv6 is a module

Eric Dumazet reported, that when inet_diag is built-in the udp_diag also goes
built-in and when ipv6 is a module the udp6 lookup symbol is not found.

  LD      .tmp_vmlinux1
net/built-in.o: In function `udp_dump_one':
udp_diag.c:(.text+0xa2b40): undefined reference to `__udp6_lib_lookup'
make: *** [.tmp_vmlinux1] Erreur 1

Fix this by making udp diag build mode depend on both -- inet diag and ipv6.

Reported-by: Eric Dumazet <eric.dumazet@...il.com>
Signed-off-by: Pavel Emelyanov <xemul@...allels.com>

---

diff --git a/net/ipv4/Kconfig b/net/ipv4/Kconfig
index a51e33e..1a8f93b 100644
--- a/net/ipv4/Kconfig
+++ b/net/ipv4/Kconfig
@@ -411,7 +411,7 @@ config INET_TCP_DIAG
 
 config INET_UDP_DIAG
 	depends on INET_DIAG
-	def_tristate INET_DIAG
+	def_tristate INET_DIAG && IPV6
 
 menuconfig TCP_CONG_ADVANCED
 	bool "TCP: advanced congestion control"
--
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