linux-kernel - Re: [PATCH] KVM: arm64: Drop 'const' from argument of vq

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Message-ID: <20190604093153.2pzv55knl6axugrv@vireshk-i7>
Date:   Tue, 4 Jun 2019 15:01:53 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Dave Martin <Dave.Martin@....com>
Cc:     Catalin Marinas <catalin.marinas@....com>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Marc Zyngier <marc.zyngier@....com>,
        Will Deacon <will.deacon@....com>,
        linux-kernel@...r.kernel.org, kvmarm@...ts.cs.columbia.edu,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] KVM: arm64: Drop 'const' from argument of vq_present()

On 04-06-19, 10:26, Dave Martin wrote:
> I'm in two minds about whether this is worth fixing, but if you want to
> post a patch to remove the extra const (or convert vq_present() to a
> macro), I'll take a look at it.

This patch already does what you are asking for (remove the extra
const), isn't it ?

I looked at my textbook (The C programming Language, By Brian W.
Kernighan and Dennis M. Ritchie.) and it says:

"
The const declaration can also be used with array arguments, to
indicate that the function does not change that array:

int strlen(const char[]);
"

and so this patch isn't necessary for sure.

-- 
viresh