linux-kernel - Re: [RFC v5 56/57] arm64: entry: Avoid empty alternatives entries

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Message-ID: <20200121103050.GD11154@willie-the-truck>
Date:   Tue, 21 Jan 2020 10:30:50 +0000
From:   Will Deacon <will@...nel.org>
To:     Mark Rutland <mark.rutland@....com>
Cc:     Julien Thierry <jthierry@...hat.com>, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, jpoimboe@...hat.com,
        peterz@...radead.org, raphael.gault@....com,
        catalin.marinas@....com
Subject: Re: [RFC v5 56/57] arm64: entry: Avoid empty alternatives entries

On Thu, Jan 09, 2020 at 04:51:46PM +0000, Mark Rutland wrote:
> On Thu, Jan 09, 2020 at 04:02:59PM +0000, Julien Thierry wrote:
> > kernel_ventry will create alternative entries to potentially replace
> > 0 instructions with 0 instructions for EL1 vectors. While this does not
> > cause an issue, it pointlessly takes up some bytes in the alternatives
> > section.
> > 
> > Do not generate such entries.
> > 
> > Signed-off-by: Julien Thierry <jthierry@...hat.com>
> 
> This looks like a sensible cleanup on its own. FWIW:
> 
> Acked-by: Mark Rutland <mark.rutland@....com>

I'll pick this one up, thanks.

Will