Re: [RFC PATCH 3/3] module: pre-test setting ro_after_init data read-only

[Luis Chamberlain <mcgrof@xxxxxxxxxx>]

On Sat, Nov 09, 2024 at 11:35:37AM +0100, Christophe Leroy wrote:
> diff --git a/kernel/module/main.c b/kernel/module/main.c
> index 1bf4b0db291b..b603c9647e73 100644
> --- a/kernel/module/main.c
> +++ b/kernel/module/main.c
> @@ -2582,7 +2582,7 @@ static noinline int do_init_module(struct module *mod)
>  	rcu_assign_pointer(mod->kallsyms, &mod->core_kallsyms);
>  #endif
>  	ret = module_enable_rodata_ro_after_init(mod);
> -	if (ret)
> +	if (WARN_ON_ONCE(ret))

Do we want panic on warn systems to crash with this?

  Luis