linux-kernel - Re: [PATCH v2] KVM: arm64: nvhe: Fix build with profile optimization

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Message-ID: <87sfjxhh4k.wl-maz@kernel.org>
Date:   Sun, 09 Oct 2022 03:20:59 +0100
From:   Marc Zyngier <maz@...nel.org>
To:     Denis Nikitin <denik@...omium.org>
Cc:     Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        James Morse <james.morse@....com>,
        Alexandru Elisei <alexandru.elisei@....com>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        David Brazdil <dbrazdil@...gle.com>,
        linux-arm-kernel@...ts.infradead.org, kvmarm@...ts.cs.columbia.edu,
        linux-kernel@...r.kernel.org, Manoj Gupta <manojgupta@...gle.com>
Subject: Re: [PATCH v2] KVM: arm64: nvhe: Fix build with profile optimization

On Thu, 06 Oct 2022 17:28:17 +0100,
Denis Nikitin <denik@...omium.org> wrote:
> 
> Hi Mark,

s/k/c/

> 
> This problem currently blocks the PGO roll on the ChromeOS kernel and
> we need some kind of a solution.

I'm sorry, but I don't feel constrained by your internal deadlines. I
have my own...

> Could you please take a look?

I have asked for a reproducer. All I got for an answer is "this is
hard". Providing a profiling file would help, for example.

	M.

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