linux-aspeed: Disable IPV6 SIT device
No one is using this device on OpenBMC systems, and there is no
code to manage it in phosphor-networkd as of March 2021:
> [...] if you don't add IPv6 addresses to the sit interface
> it doesn't do anything. The defacto way to do that on an interface in
> OpenBMC is to have it managed by phosphor-networkd. On top of this, to
> support sit you would need a way to configure the local / remote IPv4
> addresses used to back it. You can configure the linux kernel to build
> sit functionality but not create sit devices by default (I don't know
> how they haven't changed this yet in default kconfigs...) and it will
> still let you make them on the fly.
Facebook and Google systems force this option off already:
meta-facebook/meta-tiogapass/recipes-kernel/linux/linux-aspeed/tiogapass.cfg:CONFIG_IPV6_SIT=n
meta-google/recipes-kernel/linux/files/gbmc.cfg:CONFIG_IPV6_SIT=n
Change-Id: I9df02c761e82eeb2cca562bf68b9b755bc6feeb9
Signed-off-by: Joel Stanley <joel@jms.id.au>
diff --git a/meta-aspeed/recipes-kernel/linux/linux-aspeed/aspeed-g6/defconfig b/meta-aspeed/recipes-kernel/linux/linux-aspeed/aspeed-g6/defconfig
index c2363b2..fa3507d 100644
--- a/meta-aspeed/recipes-kernel/linux/linux-aspeed/aspeed-g6/defconfig
+++ b/meta-aspeed/recipes-kernel/linux/linux-aspeed/aspeed-g6/defconfig
@@ -65,6 +65,7 @@
CONFIG_IPV6_ROUTER_PREF=y
CONFIG_IPV6_ROUTE_INFO=y
CONFIG_IPV6_OPTIMISTIC_DAD=y
+# CONFIG_IPV6_SIT is not set
CONFIG_IPV6_MULTIPLE_TABLES=y
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_ADVANCED is not set