linux-kernel - Re: [PATCH] proc: Convert S_<FOO> permission uses to octal

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Date:   Sat, 13 Feb 2021 11:02:50 +0300
From:   Alexey Dobriyan <adobriyan@...il.com>
To:     "Eric W. Biederman" <ebiederm@...ssion.com>
Cc:     Joe Perches <joe@...ches.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] proc: Convert S_<FOO> permission uses to octal

On Fri, Feb 12, 2021 at 04:01:48PM -0600, Eric W. Biederman wrote:
> Joe Perches <joe@...ches.com> writes:
> 
> > Convert S_<FOO> permissions to the more readable octal.

> Something like that should be able to address the readability while
> still using symbolic constants.

Macros are easy. I've sent a patch long time ago which does essentially

	#define rwxrwxrwx 0777
		...

But then kernel will start using something nobode else does.

This whole issue is like sizeof(*ptr) vs sizeof(sizeof(struct S)).
No preferred way overall with ever vigilant checkpatch.pl guarding
kernel 24/7. :-)