From: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Date: Mon, 16 Sep 2024 18:57:13 +0000 (+0200)
Subject: net: ipv6: select DST_CACHE from IPV6_RPL_LWTUNNEL
X-Git-Tag: v6.12-rc1~38^2~15
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=93c21077bb9ba08807c459982d440dbbee4c7af3;p=linux-block.git

net: ipv6: select DST_CACHE from IPV6_RPL_LWTUNNEL

The rpl sr tunnel code contains calls to dst_cache_*() which are
only present when the dst cache is built.
Select DST_CACHE to build the dst cache, similar to other kconfig
options in the same file.
Compiling the rpl sr tunnel without DST_CACHE will lead to linker
errors.

Fixes: a7a29f9c361f ("net: ipv6: add rpl sr tunnel")
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Simon Horman <horms@kernel.org> # build-tested
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ipv6/Kconfig b/net/ipv6/Kconfig
index 08d4b7132d4c..1c9c686d9522 100644
--- a/net/ipv6/Kconfig
+++ b/net/ipv6/Kconfig
@@ -323,6 +323,7 @@ config IPV6_RPL_LWTUNNEL
 	bool "IPv6: RPL Source Routing Header support"
 	depends on IPV6
 	select LWTUNNEL
+	select DST_CACHE
 	help
 	  Support for RFC6554 RPL Source Routing Header using the lightweight
 	  tunnels mechanism.