From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joe Perches Date: Sun, 10 Jan 2016 15:17:31 +0000 Subject: Re: [PATCH v2 1/3] checkpatch.pl: add missing memory barriers Message-Id: <1452439051.7773.27.camel@perches.com> List-Id: References: <1452427000-4520-1-git-send-email-mst@redhat.com> <1452427000-4520-2-git-send-email-mst@redhat.com> <1452438425.7773.21.camel@perches.com> In-Reply-To: <1452438425.7773.21.camel-6d6DIl74uiNBDgjK7y7TUQ@public.gmane.org> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: "Michael S. Tsirkin" , linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: Andy Whitcroft , Peter Zijlstra , Arnd Bergmann , linux-arch-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Andrew Cooper , virtualization-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, Stefano Stabellini , Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , David Miller , linux-ia64-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linuxppc-dev-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org, linux-s390-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, sparclinux-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-metag-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-mips-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org, x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, user-mode-linux-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org, adi-buildroot-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org, linux-sh-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-xtensa-PjhNF2WwrV/0Sa2dR60CXw@public.gmane.org, xen-devel-GuqFBffKawtpuQazS67q72D2FQJk+8+b@public.gmane.org, Ingo Molnar , Tony Lindgren On Sun, 2016-01-10 at 07:07 -0800, Joe Perches wrote: > On Sun, 2016-01-10 at 13:56 +0200, Michael S. Tsirkin wrote: > > SMP-only barriers were missing in checkpatch.pl > > > > Refactor code slightly to make adding more variants easier. > [] > > diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl [] > If I use a variable called $smp_barriers, I'd expect > it to actually be the smp_barriers, not to have to > prefix it with smp_ before using it. > > my $smp_barriers = qr{ > smp_store_release| > smp_load_acquire| > smp_store_mb| > smp_read_barrier_depends That's missing (?:barriers) too. btw: shouldn't this also have smp_mb__(?:before|after)_atomic ?