linux-kernel - Re: [PATCH 09/11] pragma once: convert scripts/selinux/genheaders/genheaders.c

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Message-ID: <YDvnhQY+kuMVtwVf@localhost.localdomain>
Date:   Sun, 28 Feb 2021 21:57:09 +0300
From:   Alexey Dobriyan <adobriyan@...il.com>
To:     Paul Moore <paul@...l-moore.com>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
        Stephen Smalley <stephen.smalley.work@...il.com>,
        Eric Paris <eparis@...isplace.org>, selinux@...r.kernel.org
Subject: Re: [PATCH 09/11] pragma once: convert
 scripts/selinux/genheaders/genheaders.c

On Sun, Feb 28, 2021 at 01:37:41PM -0500, Paul Moore wrote:
> On Sun, Feb 28, 2021 at 12:04 PM Alexey Dobriyan <adobriyan@...il.com> wrote:
> >
> > From 097f2c8b2af7d9e88cff59376ea0ad51b95341cb Mon Sep 17 00:00:00 2001
> > From: Alexey Dobriyan <adobriyan@...il.com>
> > Date: Tue, 9 Feb 2021 00:39:23 +0300
> > Subject: [PATCH 09/11] pragma once: convert scripts/selinux/genheaders/genheaders.c
> >
> > Generate security/selinux/flask.h and security/selinux/av_permissions.h
> > without include guards.
> >
> > Signed-off-by: Alexey Dobriyan <adobriyan@...il.com>
> > ---
> >  scripts/selinux/genheaders/genheaders.c | 6 ++----
> >  1 file changed, 2 insertions(+), 4 deletions(-)
> 
> My LKML subscription must have died at some point due to mail bounces,
> or maybe I dopped it (?), because I'm not seeing the rest of this
> patchset for context.
> 
> However, unless the rest of the kernel transitions to this, or there
> is some other big win that I'm missing, I don't see much of a reason
> for this; can you provide some compelling reason for why we should
> make this change?  A quick search on "#pragma once" seems to indicate
> it is non-standard, so why replace the simple #ifdef/#define solution
> for this?

See https://lore.kernel.org/lkml/CAHk-=wjFWZMVWTbvUMVxQqGKvGMC_BNrahCtTkpEjxoC0k-T=A@mail.gmail.com/T/#t