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From: Joe Perches <joe@perches•com>
To: Julian Calaby <julian.calaby@gmail•com>,
	"Michael S. Tsirkin" <mst@redhat•com>
Cc: "linux-kernel@vger•kernel.org" <linux-kernel@vger•kernel.org>,
	Andy Whitcroft <apw@canonical•com>,
	Peter Zijlstra <peterz@infradead•org>,
	Arnd Bergmann <arnd@arndb•de>,
	 linux-arch@vger•kernel.org,
	Andrew Cooper <andrew.cooper3@citrix•com>,
	 virtualization@lists•linux-foundation.org,
	Stefano Stabellini <stefano.stabellini@eu•citrix.com>,
	Thomas Gleixner <tglx@linutronix•de>,
	 Ingo Molnar <mingo@elte•hu>, "H. Peter Anvin" <hpa@zytor•com>,
	David Miller <davem@davemloft•net>,
	linux-ia64@vger•kernel.org, linuxppc-dev@lists•ozlabs.org,
	linux-s390@vger•kernel.org,
	sparclinux <sparclinux@vger•kernel.org>,
	"Mailing List, Arm" <linux-arm-kernel@lists•infradead.org>,
	linux-metag@vger•kernel.org,  linux-mips@linux-mips•org,
	x86@kernel•org, user-mode-linux-devel@lists•sourceforge.net,
	adi-buildroot-devel@lists•sourceforge.net,
	linux-sh@vger•kernel.org, linux-xtensa@linux-xtensa•org,
	xen-devel@lists•xenproject.org, Ingo Molnar <mingo@kernel•org>,
	Tony Lindgren <tony@atomide•com>,
	Andrey Konovalov <andreyknvl@google•com>,
	Russell King - ARM Linux <linux@arm•linux.org.uk>
Subject: Re: [PATCH v3 3/3] checkpatch: add virt barriers
Date: Sun, 10 Jan 2016 14:52:16 -0800	[thread overview]
Message-ID: <1452466336.7773.46.camel@perches.com> (raw)
In-Reply-To: <CAGRGNgXQANbKD=VA0Qx4Wp1+MpZUVV7by8RrKxF9o=qu=vUQqA@mail.gmail.com>

On Mon, 2016-01-11 at 09:13 +1100, Julian Calaby wrote:
> On Mon, Jan 11, 2016 at 6:31 AM, Michael S. Tsirkin <mst@redhat•com> wrote:
> > Add virt_ barriers to list of barriers to check for
> > presence of a comment.
[]
> > diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
[]
> > @@ -5133,7 +5133,8 @@ sub process {
> >                 }x;
> >                 my $all_barriers = qr{
> >                         $barriers|
> > -                       smp_(?:$smp_barrier_stems)
> > +                       smp_(?:$smp_barrier_stems)|
> > +                       virt_(?:$smp_barrier_stems)
> 
> Sorry I'm late to the party here, but would it make sense to write this as:
> 
> (?:smp|virt)_(?:$smp_barrier_stems)

Yes.  Perhaps the name might be better as barrier_stems.

Also, ideally this would be longest match first or use \b
after the matches so that $all_barriers could work
successfully without a following \s*\(

my $all_barriers = qr{
	(?:smp|virt)_(?:barrier_stems)|
	$barriers)
}x;

or maybe add separate $smp_barriers and $virt_barriers

<shrug>  it doesn't matter much in any case

  reply	other threads:[~2016-01-10 22:52 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-01-10 19:30 [PATCH v3 0/3] checkpatch: handling of memory barriers Michael S. Tsirkin
2016-01-10 19:30 ` [PATCH v3 1/3] checkpatch.pl: add missing " Michael S. Tsirkin
2016-01-10 19:30 ` [PATCH v3 2/3] checkpatch: check for __smp outside barrier.h Michael S. Tsirkin
2016-01-10 19:31 ` [PATCH v3 3/3] checkpatch: add virt barriers Michael S. Tsirkin
2016-01-10 22:13   ` Julian Calaby
2016-01-10 22:52     ` Joe Perches [this message]
2016-01-11 10:35       ` Michael S. Tsirkin
2016-01-11 10:40         ` Julian Calaby
2016-01-11 10:56           ` Michael S. Tsirkin

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