On 08/01/2025 1:28, Kees Cook wrote: >> This resolves the following warning: >> memcpy: detected field-spanning write (size 8) of single field >> "_Generic(info, const struct ip_tunnel_info * : ((const void *)((info) + >> 1)), struct ip_tunnel_info * : ((void *)((info) + 1)) )" at >> include/net/ip_tunnels.h:662 (size 0) > > Then you can drop this macro and just use: info->options > > Looks like you'd need to do it for all the types in struct metadata_dst, but > at least you could stop hiding it from the compiler. :)
Can you please explain the "do it for all the types in struct metadata_dst" part? AFAICT, struct ip_tunnel_info is the only one that's extendable, I don't think others need to be modified.