linux-hardening - Re: [PATCH v2 1/2] Compiler Attributes: Add __counted_by

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Message-ID: <CANiq72mCDAKF+PEkUDHBSNcnfxiAU1oF5RA7zysTbiU+x7m3OQ@mail.gmail.com>
Date: Sat, 17 Jan 2026 20:18:37 +0100
From: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
To: Peter Zijlstra <peterz@...radead.org>
Cc: Bill Wendling <morbo@...gle.com>, linux-kernel@...r.kernel.org, 
	Kees Cook <kees@...nel.org>, Qing Zhao <qing.zhao@...cle.com>, 
	"Gustavo A. R. Silva" <gustavoars@...nel.org>, Nathan Chancellor <nathan@...nel.org>, 
	Nick Desaulniers <nick.desaulniers+lkml@...il.com>, Justin Stitt <justinstitt@...gle.com>, 
	Miguel Ojeda <ojeda@...nel.org>, Andrew Morton <akpm@...ux-foundation.org>, 
	Heiko Carstens <hca@...ux.ibm.com>, Marc Herbert <Marc.Herbert@...ux.intel.com>, 
	Uros Bizjak <ubizjak@...il.com>, Tejun Heo <tj@...nel.org>, Jeff Xu <jeffxu@...omium.org>, 
	Michal Koutný <mkoutny@...e.com>, 
	Shakeel Butt <shakeel.butt@...ux.dev>, 
	Thomas Weißschuh <thomas.weissschuh@...utronix.de>, 
	John Stultz <jstultz@...gle.com>, Christian Brauner <brauner@...nel.org>, 
	Randy Dunlap <rdunlap@...radead.org>, Brian Gerst <brgerst@...il.com>, 
	Masahiro Yamada <masahiroy@...nel.org>, linux-hardening@...r.kernel.org, 
	llvm@...ts.linux.dev, Jan Hendrik Farr <kernel@...rr.cc>
Subject: Re: [PATCH v2 1/2] Compiler Attributes: Add __counted_by_ptr macro

On Fri, Jan 16, 2026 at 9:35 AM Peter Zijlstra <peterz@...radead.org> wrote:
>
> Kees promised to drop this attribute once GCC-16 releases by basically
> doing 's/__counted_by_ptr/__counted_by/' and unifying things again.
>
> This split out state will only exist for a very short while until GCC
> has a release with this feature on.

Ah, I see, thanks!

(even if it happens later, that sounds fine)

Cheers,
Miguel