Re: [PATCH v4] compiler_types: Allow opting out of __counted_by and __counted_by_ptr

[Ard Biesheuvel]

On Thu, 8 Oct 2026, at 18:17, Nathan Chancellor wrote:
> On Thu, Oct 08, 2026 at 04:50:44PM +0200, Ard Biesheuvel wrote:
>> On Wed, 7 Oct 2026, at 11:36, Nathan Chancellor wrote:
>> > On Wed, Oct 07, 2026 at 02:32:45AM -0700, Bill Wendling wrote:
>> >> Ard,
>> >> 
>> >> What's the reason why x86 doesn't need the KBUILD_CFLAGS flags? Is
>> >> there something that breaks things?
>> >
>> > I think it is mostly historical. See Kees's series to address it:
>> >
>> >   https://lore.kernel.org/20261006204210.i.137-kees@xxxxxxxxxx/
>> >
>> 
>> I've queued that up now in the EFI tree.
>> 
>> Do we still need this patch then?
>
> I don't think so, since the efistub should now get
> '-fexperimental-late-parse-attributes' from the main KBUILD_CFLAGS,
> which is what prompted this patch in the first place:
>
>   
> https://lore.kernel.org/CAGG=3QWCmQ+LVvn2dtjEauj5WFwvx=pvg4Q6man_A2imdjRe7A@xxxxxxxxxxxxxx/
>
> As I mentioned up thread and to Kees in person, we should still consider
> adding '-fexperimental-late-parse-attributes' into CC_FLAGS_DIALECT to
> cover other areas that may see __counted_by_ptr use but it is probably
> not as high priority.
>

Excellent.