[PATCH 2/2] arm64: cpufeatures: Only check for NV1 if NV is present

[Marc Zyngier]

On Thu, 15 Feb 2024 02:02:24 +0000,
Oliver Upton <oliver.upton at linux.dev> wrote:
> 
> On Tue, Feb 13, 2024 at 02:21:48PM +0000, Marc Zyngier wrote:
> > From cd75279d3b6c387c13972b61c486a203d9652e97 Mon Sep 17 00:00:00 2001
> > From: Marc Zyngier <maz at kernel.org>
> > Date: Tue, 13 Feb 2024 13:37:57 +0000
> > Subject: [PATCH] arm64: cpufeatures: Fix FEAT_NV check when checking for
> >  FEAT_NV1
> > 
> > Using this_cpu_has_cap() has the potential to go wrong when
> > used system-wide on a preemptible kernel. Instead, use the
> > __system_matches_cap() helper when checking for FEAT_NV in the
> > FEAT_NV1 probing helper.
> > 
> > Fixes: 3673d01a2f55 ("arm64: cpufeatures: Only check for NV1 if NV is present")
> > Reported-by: Marek Szyprowski <m.szyprowski at samsung.com>
> > Signed-off-by: Marc Zyngier <maz at kernel.org>
> 
> b4 wasn't very happy with grabbing this patch in reply to a series
> (probably user error), but I've picked this up for kvmarm/next.
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git/commit/?id=9aa030cee1c45d6e962f6bf22ba63d4aff2b1644

Ah, sorry, I should have posted as a proper patch instead of an inline
patch. Thanks for picking it up despite that.

	M.

-- 
Without deviation from the norm, progress is not possible.