linux-kernel - Re: [PATCH 1/1] x86/purgatory: Change compiler flags to avoid relocation errors.

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Date:   Thu, 5 Sep 2019 11:15:14 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Steve Wahl <steve.wahl@....com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        clang-built-linux@...glegroups.com, vaibhavrustagi@...gle.com,
        russ.anderson@....com, dimitri.sivanich@....com,
        mike.travis@....com
Subject: Re: [PATCH 1/1] x86/purgatory: Change compiler flags to avoid
 relocation errors.

On Wed, Sep 04, 2019 at 04:45:05PM -0500, Steve Wahl wrote:
> The last change to this Makefile caused relocation errors when loading
> a kdump kernel.

How do those relocation errors look like?

What exactly caused those errors, the flags removal from
kexec-purgatory.o?

Because this is the difference I can see from

b059f801a937 ("x86/purgatory: Use CFLAGS_REMOVE rather than reset KBUILD_CFLAGS")

Or is it something else?

Can we have the failure properly explained in the commit message pls?

> This change restores the appropriate flags, without

You don't have to say "This change" in the commit message - it is
obvious which change you're talking about. Instead say: "Restore the
appropriate... "

Thx.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette