linux-hardening - Re: [PATCH] Compiler Attributes: counted_by: Adjust name and identifier expansion

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Date:   Thu, 17 Aug 2023 16:45:40 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
Cc:     Miguel Ojeda <ojeda@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Nathan Chancellor <nathan@...nel.org>,
        Tom Rix <trix@...hat.com>,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        linux-kernel@...r.kernel.org, llvm@...ts.linux.dev,
        linux-hardening@...r.kernel.org
Subject: Re: [PATCH] Compiler Attributes: counted_by: Adjust name and
 identifier expansion

On Fri, Aug 18, 2023 at 12:06:15AM +0200, Miguel Ojeda wrote:
> On Thu, Aug 17, 2023 at 10:06 PM Kees Cook <keescook@...omium.org> wrote:
> >
> > GCC and Clang's current RFCs name this attribute "counted_by", and have
> > moved away from using a string for the member name. Update the kernel's
> > macros to match. Additionally provide a UAPI no-op macro for UAPI structs
> > that will gain annotations.
> >
> > Cc: Miguel Ojeda <ojeda@...nel.org>
> > Cc: Nick Desaulniers <ndesaulniers@...gle.com>
> > Fixes: dd06e72e68bc ("Compiler Attributes: Add __counted_by macro")
> > Signed-off-by: Kees Cook <keescook@...omium.org>
> 
> Looks good to me, thanks. Perhaps we should split the UAPI bit into a
> second patch.

I'd like to keep the UAPI part -- that was an oversight when I first
added it.

> I can take it into my tree; otherwise if you need this elsewhere:
> 
>     Acked-by: Miguel Ojeda <ojeda@...nel.org>

Thanks! It'd be slightly easier for me if it was is my tree, so I'll
grab your Ack. :) Let me know if you'd prefer it otherwise.

-Kees

-- 
Kees Cook