Re: [PATCH v2 16/19] objtool: Implement noinstr validation

[Peter Zijlstra]

On Tue, Mar 17, 2020 at 06:02:50PM +0100, Peter Zijlstra wrote:
> +static int validate_vmlinux_functions(struct objtool_file *file)
> +{
> +	struct section *sec;
> +
> +	sec = find_section_by_name(file->elf, ".noinstr.text");
> +	if (!sec) {
> +		WARN("No .noinstr.text section");
> +		return -1;

And that is a little too agressive, seeing how the current x86_64 kernel
does not include it. I made it a silent exit for now, so as not to break
the build (with patch 20/19 added on).

>  	}
>  
> +	return validate_sec_functions(file, sec);
> +}