linux-kernel - Re: [PATCH] x86/boot/KASLR: Fix unused variable warning

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Message-ID: <20200110095243.GE19453@zn.tnic>
Date:   Fri, 10 Jan 2020 10:52:43 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Zhenzhong Duan <zhenzhong.duan@...il.com>
Cc:     linux-kernel@...r.kernel.org, x86@...nel.org,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>
Subject: Re: [PATCH] x86/boot/KASLR: Fix unused variable warning

On Fri, Jan 10, 2020 at 05:43:04PM +0800, Zhenzhong Duan wrote:
> 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 with 'make EXTRA_CFLAGS=-Wall binrpm-pkg', fix it by moving 'i'
> in the guard.

Maybe I wasn't clear: save this patch for when it triggers in the normal
build, without additional build flags.

-- 
Regards/Gruss,
    Boris.

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