linux-kernel - Re: [PATCH 1/2] ima: fix build error redeclaration of enumerator

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Message-ID: <CAHp75VcPeKDLOB7vKeSG9+UfsYnPfTPy_omuTgJSUgKzC0caNw@mail.gmail.com>
Date:   Tue, 12 Feb 2019 12:23:24 +0200
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Anders Roxell <anders.roxell@...aro.org>
Cc:     Mimi Zohar <zohar@...ux.ibm.com>,
        Dmitry Kasatkin <dmitry.kasatkin@...il.com>,
        James Morris <jmorris@...ei.org>,
        "Serge E. Hallyn" <serge@...lyn.com>,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        linux-integrity <linux-integrity@...r.kernel.org>,
        linux-security-module <linux-security-module@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" <x86@...nel.org>,
        linux-efi <linux-efi@...r.kernel.org>,
        Platform Driver <platform-driver-x86@...r.kernel.org>
Subject: Re: [PATCH 1/2] ima: fix build error redeclaration of enumerator

On Tue, Feb 12, 2019 at 12:21 PM Andy Shevchenko
<andy.shevchenko@...il.com> wrote:
>
> On Tue, Feb 12, 2019 at 12:15 PM Anders Roxell <anders.roxell@...aro.org> wrote:
> >
> > Commit a893ea15d764 ("tpm: move tpm_chip definition to
> > include/linux/tpm.h") introduced a build error when both ima and efi is
> > enabled. What happens is that both headers (ima.h and efi.h) defines the
> > same 'NONE' constant, and it broke when they started getting included
> > from the same file.
>
> > We only need one of the two patches applied.
>
> I would argue that we need two patches applied. Namespace is a hidden
> issue in the code.
>
> This patch looks good to me, FWIW,
> Reviewed-by: Andy Shevchenko <andy.shevchenko@...il.com>

Oh, did you change ABI? So, I have to say that enum changes are okay,
but ABI, if any, are not.

-- 
With Best Regards,
Andy Shevchenko