linux-kernel - Re: [PATCH] arm64/kernel: Simplify __cpu

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Date:   Tue, 17 Mar 2020 10:08:58 +0000
From:   Catalin Marinas <catalin.marinas@....com>
To:     Mark Rutland <mark.rutland@....com>
Cc:     Gavin Shan <gshan@...hat.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        will@...nel.org, maz@...nel.org, shan.gavin@...il.com
Subject: Re: [PATCH] arm64/kernel: Simplify __cpu_up() by bailing out early

On Tue, Mar 17, 2020 at 10:06:09AM +0000, Mark Rutland wrote:
> On Mon, Mar 02, 2020 at 12:21:35PM +0000, Mark Rutland wrote:
> > On Mon, Mar 02, 2020 at 01:03:40PM +1100, Gavin Shan wrote:
> > > The function __cpu_up() is invoked to bring up the target CPU through
> > > the backend, PSCI for example. The nested if statements won't be needed
> > > if we bail out early on the following two conditions where the status
> > > won't be checked. The code looks simplified in that case.
> > > 
> > >    * Error returned from the backend (e.g. PSCI)
> > >    * The target CPU has been marked as onlined
> > > 
> > > Signed-off-by: Gavin Shan <gshan@...hat.com>
> > 
> > FWIW, this looks like a nice cleanup to me:
> > 
> > Reviewed-by: Mark Rutland <mark.rutland@....com>
> 
> Catalin, are you happy to pick this up?

Yes, it was on my list to pick up already, just haven't got around to it
yet.

-- 
Catalin