On Wed, 28 Feb 2024 13:46:10 -0800 Kees Cook wrote:
> I really don't like hiding these trailing allocations from the compiler.
> Why can't something like this be done (totally untested):
>
>
> diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
> index 118c40258d07..dae6df4fb177 100644
> --- a/include/linux/netdevice.h
> +++ b/include/linux/netdevice.h
> @@ -2475,6 +2475,8 @@ struct net_device {
> /** @page_pools: page pools created for this netdevice */
> struct hlist_head page_pools;
> #endif
> + u32 priv_size;
> + u8 priv_data[] __counted_by(priv_size)
> __aligned(NETDEV_ALIGN);
I like, FWIW, please submit! :)
