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From:   Thomas Gleixner <tglx@linutronix.de>
To:     Zhenzhong Duan <zhenzhong.duan@gmail.com>,
        linux-kernel@vger.kernel.org
Cc:     x86@kernel.org, Zhenzhong Duan <zhenzhong.duan@gmail.com>,
        Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@suse.de>,
        "H. Peter Anvin" <hpa@zytor.com>,
        Chao Fan <fanc.fnst@cn.fujitsu.com>,
        Dave Hansen <dave.hansen@linux.intel.com>,
        "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Subject: Re: [PATCH v2] x86/boot/KASLR: Fix unused variable warning
In-Reply-To: <20200103033929.4956-1-zhenzhong.duan@gmail.com>
References: <20200103033929.4956-1-zhenzhong.duan@gmail.com>
Date:   Thu, 09 Jan 2020 22:00:05 +0100
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Zhenzhong Duan <zhenzhong.duan@gmail.com> writes:

> Local variable 'i' is referenced only when CONFIG_MEMORY_HOTREMOVE and
> CONFIG_ACPI are defined, but definition of variable 'i' is out of guard.
> If any of the two macros is undefined, below warning triggers during
> build, fix it by moving 'i' in the guard.
>
> arch/x86/boot/compressed/kaslr.c:698:6: warning: unused variable ‘i’ [-Wunused-variable]
>
> Also use true/false instead of 1/0 for boolean return.

No. This is not the scope of the unused variable issue. This want's to
be a separate patch.

Thanks,

        tglx