linux-kernel - Re: [PATCH 00/82] overflow: Refactor open-coded arithmetic wrap-around

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Message-ID: <202401282226.A4C1153769@keescook>
Date: Sun, 28 Jan 2024 22:27:29 -0800
From: Kees Cook <keescook@...omium.org>
To: Mark Rutland <mark.rutland@....com>
Cc: linux-hardening@...r.kernel.org,
	"Gustavo A. R. Silva" <gustavoars@...nel.org>,
	Bill Wendling <morbo@...gle.com>,
	Justin Stitt <justinstitt@...gle.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 00/82] overflow: Refactor open-coded arithmetic
 wrap-around

On Tue, Jan 23, 2024 at 09:46:35AM +0000, Mark Rutland wrote:
> This also misses the include/linux/atomic/atomic-arch-fallback.h
> implementations. Those are generated from the scripts/atomic/fallbacks/*
> templates, and you'll need to adjust at least fetch_add_unless and
> inc_unless_negative. As noted on other patches, my preference is to use
> add_wrap() in those.

How do I regenerate the header files using the templates? I found a
script, but its use eluded me, and it doesn't seem wired up to the
top-level Makefile? Maybe I missed something obvious...

-- 
Kees Cook