linux-kernel - Re: [PATCH -next] KVM: x86: remove set but not used variable 'called'

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Message-ID: <20191119121423.GB5604@kadam>
Date:   Tue, 19 Nov 2019 15:14:26 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Vitaly Kuznetsov <vkuznets@...hat.com>
Cc:     Mao Wenan <maowenan@...wei.com>, pbonzini@...hat.com,
        rkrcmar@...hat.com, sean.j.christopherson@...el.com,
        wanpengli@...cent.com, jmattson@...gle.com, joro@...tes.org,
        tglx@...utronix.de, mingo@...hat.com, bp@...en8.de, hpa@...or.com,
        kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org
Subject: Re: [PATCH -next] KVM: x86: remove set but not used variable 'called'

On Tue, Nov 19, 2019 at 12:58:54PM +0100, Vitaly Kuznetsov wrote:
> Mao Wenan <maowenan@...wei.com> writes:
> 
> > Fixes gcc '-Wunused-but-set-variable' warning:
> >
> > arch/x86/kvm/x86.c: In function kvm_make_scan_ioapic_request_mask:
> > arch/x86/kvm/x86.c:7911:7: warning: variable called set but not
> > used [-Wunused-but-set-variable]
> >
> > It is not used since commit 7ee30bc132c6 ("KVM: x86: deliver KVM
> > IOAPIC scan request to target vCPUs")
> 
> Better expressed as 
> 
> Fixes: 7ee30bc132c6 ("KVM: x86: deliver KVM IOAPIC scan request to target vCPUs")
> 

There is sort of a debate about this whether the Fixes tag should be
used if it's only a cleanup.

regards,
dan carpenter