netdev - [PATCH] amt: add IPV6 Kconfig dependency

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Message-Id: <20211108111322.3852690-1-arnd@kernel.org>
Date:   Mon,  8 Nov 2021 12:12:24 +0100
From:   Arnd Bergmann <arnd@...nel.org>
To:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Taehee Yoo <ap420073@...il.com>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Loic Poulain <loic.poulain@...aro.org>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] amt: add IPV6 Kconfig dependency

From: Arnd Bergmann <arnd@...db.de>

This driver cannot be built-in if IPV6 is a loadable module:

x86_64-linux-ld: drivers/net/amt.o: in function `amt_build_mld_gq':
amt.c:(.text+0x2e7d): undefined reference to `ipv6_dev_get_saddr'

Add the idiomatic Kconfig dependency that all such modules
have.

Fixes: b9022b53adad ("amt: add control plane of amt interface")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/net/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 034dbd487c33..10506a4b66ef 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -294,6 +294,7 @@ config GTP
 config AMT
 	tristate "Automatic Multicast Tunneling (AMT)"
 	depends on INET && IP_MULTICAST
+	depends on IPV6 || !IPV6
 	select NET_UDP_TUNNEL
 	help
 	  This allows one to create AMT(Automatic Multicast Tunneling)
-- 
2.29.2