On 07/02/2016 03:20 PM, Baptiste Jonglez wrote: > Hi, > > I am packaging a new kernel module (wireguard), the package is currently here > [1]. > > However, I have some trouble understanding what KCONFIG does. Wireguard > needs a few kernel options, so I thought that KCONFIG was the place to > declare such dependencies: > > > https://github.com/zorun/packages-1/blob/wireguard/net/wireguard/Makefile#L90
> KCONFIG:=CONFIG_NET_UDP_TUNNEL CONFIG_IPV6 \ > CONFIG_NETFILTER_XT_MATCH_HASHLIMIT Instead of activating the kernel symbols you should add a dependency to the packages which are building these models: DEPENDS:=+kmod-udptunnel4 +kmod-udptunnel6 +kmod-ipt-hashlimit > However, it does not seem to enable these options. The module compiles > fine, it installs fine [2], but then it fails to load at runtime: > > Sat Jul 2 10:04:50 2016 kern.warn kernel: [ 95.015838] wireguard: Unknown > symbol udp_sock_create4 (err 0) > Sat Jul 2 10:04:50 2016 kern.warn kernel: [ 95.022021] wireguard: Unknown > symbol udp_tunnel6_xmit_skb (err 0) > Sat Jul 2 10:04:50 2016 kern.warn kernel: [ 95.028767] wireguard: Unknown > symbol udp_tunnel_sock_release (err 0) > Sat Jul 2 10:04:50 2016 kern.warn kernel: [ 95.035570] wireguard: Unknown > symbol setup_udp_tunnel_sock (err 0) > Sat Jul 2 10:04:50 2016 kern.warn kernel: [ 95.042136] wireguard: Unknown > symbol udp_sock_create6 (err 0) > Sat Jul 2 10:04:50 2016 kern.warn kernel: [ 95.048297] wireguard: Unknown > symbol udp_tunnel_xmit_skb (err 0) > > It works when selecting the needed options manually in kernel_menuconfig, > but it's a huge pain. You should avoid make kernel_menuconfig > Is there a way to get the needed kernel options automatically? Maybe this > only happens for packages that are part of the core Lede distribution? > > Thanks, > Baptiste > > [1] https://github.com/zorun/packages-1/blob/wireguard/net/wireguard/Makefile > [2] http://paste.aliens-lyon.fr/CBI
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