linux-hardening - Re: [PATCH 1/5] string.h: add array-wrappers for (v)memdup

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Date:   Thu, 31 Aug 2023 14:16:54 +0200
From:   Philipp Stanner <pstanner@...hat.com>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     Kees Cook <keescook@...omium.org>,
        Andy Shevchenko <andy@...nel.org>,
        Eric Biederman <ebiederm@...ssion.com>,
        Christian Brauner <brauner@...nel.org>,
        David Disseldorp <ddiss@...e.de>,
        Luis Chamberlain <mcgrof@...nel.org>,
        Siddh Raman Pant <code@...dh.me>,
        Nick Alcock <nick.alcock@...cle.com>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>, Zack Rusin <zackr@...are.com>,
        VMware Graphics Reviewers 
        <linux-graphics-maintainer@...are.com>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        kexec@...ts.infradead.org, linux-hardening@...r.kernel.org,
        David Airlie <airlied@...hat.com>
Subject: Re: [PATCH 1/5] string.h: add array-wrappers for (v)memdup_user()

On Thu, 2023-08-31 at 11:59 +0300, Andy Shevchenko wrote:
> On Wed, Aug 30, 2023 at 10:15 PM <pstanner@...hat.com> wrote:
> > On Wed, 2023-08-30 at 17:29 +0300, Andy Shevchenko wrote:
> > > On Wed, Aug 30, 2023 at 5:19 PM <pstanner@...hat.com> wrote:
> > > > On Wed, 2023-08-30 at 17:11 +0300, Andy Shevchenko wrote:
> > > > > On Wed, Aug 30, 2023 at 4:46 PM Philipp Stanner
> > > > > <pstanner@...hat.com>
> > > Alphabetical.
> > > 
> > > compiler.h
> > > err.h
> > > overflow.h
> > > ...the rest that is a bit unordered...
> > > 
> > > > > >  #include <linux/stdarg.h>
> > > > > >  #include <uapi/linux/string.h>
> > 
> > I mean I could include my own in a sorted manner – but the existing
> > ones are not sorted:
> 
> I know, that's why I put "(to some extent)" in my initial comment.
> 
> > We could sort them all, but I'd prefer to do that in a separate
> > patch
> > so that this commit does not make the impression of doing anything
> > else
> > than including the two new headers
> 
> But you can do your stuff first with better ordering than you
> proposed
> initially, so there will be less churn for any additional change
> (either that simply unifies the thing or something else).
> 
> 

I'll take care of those points in a v2 once I gathered some more
feedback from the other parties.

P.