linux-kernel - Re: [PATCH v2] x86/boot/KASLR: Fix unused variable warning

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Message-ID: <CAFH1YnNdmHD9rnriTVx-se-Z5MHsgUZ0jYWMrg6OYVjr4Ap+JQ@mail.gmail.com>
Date:   Fri, 10 Jan 2020 10:09:38 +0800
From:   Zhenzhong Duan <zhenzhong.duan@...il.com>
To:     Borislav Petkov <bp@...en8.de>
Cc:     Arvind Sankar <nivedita@...m.mit.edu>,
        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 v2] x86/boot/KASLR: Fix unused variable warning

On Fri, Jan 10, 2020 at 4:50 AM Borislav Petkov <bp@...en8.de> wrote:
>
> Drop fanc.fnst@...fujitsu.com from Cc because it bounces.
>
> On Thu, Jan 09, 2020 at 03:46:41PM -0500, Arvind Sankar wrote:
> > The boot/compressed Makefile resets KBUILD_CFLAGS.  Following hack and
> > building with W=1 shows it, or just add -Wunused in there.
>
> I'm interested in how he reproduced it on the stock tree, without
> additional hacks or changes.

I indeed used additional parameters as below for daily build.
# make O=/build/kernel/ -j4 EXTRA_CFLAGS=-Wall binrpm-pkg

Regards
Zhenzhong