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From: David Miller <davem@davemloft.net>
To: ebiederm@xmission.com
Cc: linux-kernel@vger.kernel.org, luto@kernel.org,
	torvalds@linux-foundation.org, viro@zeniv.linux.org.uk,
	oleg@redhat.com, avagin@virtuozzo.com, tglx@linutronix.de,
	greg@kroah.com, avagin@openvz.org, serge@hallyn.com,
	xemul@virtuozzo.com, gorcunov@openvz.org, peterz@infradead.org,
	w@1wt.eu, linux-arch@vger.kernel.org, linux-api@vger.kernel.org,
	containers@lists.linux-foundation.org, mtk.manpages@gmail.com,
	sparclinux@vger.kernel.org
Subject: Re: [PATCH 3/8] signal/sparc: Document a conflict with SI_USER with SIGFPE
Date: Fri, 30 Jun 2017 12:45:05 -0400 (EDT)	[thread overview]
Message-ID: <20170630.124505.736865959393416284.davem@davemloft.net> (raw)
In-Reply-To: <20170630123906.8865-3-ebiederm@xmission.com>

From: "Eric W. Biederman" <ebiederm@xmission.com>
Date: Fri, 30 Jun 2017 07:39:01 -0500

> diff --git a/arch/sparc/include/uapi/asm/siginfo.h b/arch/sparc/include/uapi/asm/siginfo.h
> index 2d9b79ccaa50..6bc5c677e92f 100644
> --- a/arch/sparc/include/uapi/asm/siginfo.h
> +++ b/arch/sparc/include/uapi/asm/siginfo.h
> @@ -17,6 +17,11 @@
>  #define SI_NOINFO	32767		/* no information in siginfo_t */
>  
>  /*
> + * SIGFPE si_codes
> + */
> +#define FPE_FIXME	(__SI_FAULT|0)	/* Broken dup of SI_USER */
> +
> +/*
>   * SIGEMT si_codes
>   */
>  #define EMT_TAGOVF	(__SI_FAULT|1)	/* tag overflow */

It's one thing to say FIXME in a comment in a kernel local header or
C file.

It's quite another to put this into the name of a macro which has
visibility in the global user compilation namespace.

I don't think you should really do that.

  reply	other threads:[~2017-06-30 16:45 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <87efu22set.fsf@xmission.com>
2017-06-30 12:38 ` [PATCH 1/8] signal/alpha: Document a conflict with SI_USER for SIGTRAP Eric W. Biederman
2017-07-02 14:13   ` Helge Deller
     [not found]     ` <20170702141320.GA32254-PwtjyNU/e7vkVFMGpb/cPg@public.gmane.org>
2017-07-14 10:59       ` Eric W. Biederman
2017-07-17  8:14         ` Michael Cree
2017-07-18 13:37           ` Eric W. Biederman
2017-06-30 12:39 ` [PATCH 2/8] signal/ia64: Document a conflict with SI_USER with SIGFPE Eric W. Biederman
2017-06-30 12:39 ` [PATCH 3/8] signal/sparc: " Eric W. Biederman
2017-06-30 16:45   ` David Miller [this message]
     [not found]     ` <20170630.124505.736865959393416284.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2017-06-30 18:13       ` Eric W. Biederman
     [not found]         ` <8737ahwdgr.fsf-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2017-07-18 13:43           ` Eric W. Biederman
     [not found] ` <87efu22set.fsf-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2017-06-30 12:39   ` [PATCH 4/8] signal/mips: " Eric W. Biederman
2017-06-30 12:39   ` [PATCH 5/8] signal/testing: Don't look for __SI_FAULT in userspace Eric W. Biederman
2017-06-30 12:39   ` [PATCH 6/8] signal/x86: Fix SIGSYS handling in copy_siginfo_to_user32 Eric W. Biederman
2017-06-30 12:39   ` [PATCH 7/8] fcntl: Don't use ambiguous SIG_POLL si_codes Eric W. Biederman
2017-06-30 12:39   ` [PATCH 8/8] signal: Remove kernel interal si_code magic Eric W. Biederman
     [not found]     ` <20170630123906.8865-8-ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2017-07-12 22:36       ` Andrei Vagin
2017-07-12 23:08         ` Eric W. Biederman

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