linux-kernel - Re: [PATCH v4 0/3] checkpatch: handling of memory barriers

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Message-ID: <20160111130334-mutt-send-email-mst@redhat.com>
Date:	Mon, 11 Jan 2016 13:04:21 +0200
From:	"Michael S. Tsirkin" <mst@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	Andy Whitcroft <apw@...onical.com>, Joe Perches <joe@...ches.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Arnd Bergmann <arnd@...db.de>, linux-arch@...r.kernel.org,
	Andrew Cooper <andrew.cooper3@...rix.com>,
	virtualization@...ts.linux-foundation.org,
	Stefano Stabellini <stefano.stabellini@...citrix.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>,
	David Miller <davem@...emloft.net>, linux-ia64@...r.kernel.org,
	linuxppc-dev@...ts.ozlabs.org, linux-s390@...r.kernel.org,
	sparclinux@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-metag@...r.kernel.org, linux-mips@...ux-mips.org,
	x86@...nel.org, user-mode-linux-devel@...ts.sourceforge.net,
	adi-buildroot-devel@...ts.sourceforge.net,
	linux-sh@...r.kernel.org, linux-xtensa@...ux-xtensa.org,
	xen-devel@...ts.xenproject.org, Ingo Molnar <mingo@...nel.org>,
	Tony Lindgren <tony@...mide.com>,
	Julian Calaby <julian.calaby@...il.com>,
	Russell King - ARM Linux <linux@....linux.org.uk>
Subject: Re: [PATCH v4 0/3] checkpatch: handling of memory barriers

On Mon, Jan 11, 2016 at 12:59:25PM +0200, Michael S. Tsirkin wrote:
> As part of memory barrier cleanup, this patchset
> extends checkpatch to make it easier to stop
> incorrect memory barrier usage.
> 
> This replaces the checkpatch patches in my series
> 	arch: barrier cleanup + barriers for virt
> and will be included in the pull request including
> the series.
> 
> changes from v3:
> 	rename smp_barrier_stems to barrier_stems
> 	as suggested by Julian Calaby.

In fact it was Joe Perches that suggested it.
Sorry about the confusion.

> 	add (?: ... ) around a variable in regexp,
> 	in case we change the value later so that it matters.
> changes from v2:
> 	address comments by Joe Perches:
> 	use (?: ... ) to avoid unnecessary capture groups
> 	rename smp_barriers to smp_barrier_stems for clarity
> 	add barriers before/after atomic
> Changes from v1:
> 	catch optional\s* before () in barriers
> 	rewrite using qr{} instead of map
> 
> Michael S. Tsirkin (3):
>   checkpatch.pl: add missing memory barriers
>   checkpatch: check for __smp outside barrier.h
>   checkpatch: add virt barriers
> 
> Michael S. Tsirkin (3):
>   checkpatch.pl: add missing memory barriers
>   checkpatch: check for __smp outside barrier.h
>   checkpatch: add virt barriers
> 
>  scripts/checkpatch.pl | 33 ++++++++++++++++++++++++++++++++-
>  1 file changed, 32 insertions(+), 1 deletion(-)
> 
> -- 
> MST