linux-kernel - Re: [PATCH] x86/process: Export start

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Message-ID: <alpine.DEB.2.21.1808200927550.2151@nanos.tec.linutronix.de>
Date:   Mon, 20 Aug 2018 09:30:07 +0200 (CEST)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Andy Lutomirski <luto@...capital.net>
cc:     Rian Hunter <rian@...m.mit.edu>, linux-kernel@...r.kernel.org,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        Andy Lutomirski <luto@...nel.org>,
        Borislav Petkov <bpetkov@...e.de>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Joerg Roedel <jroedel@...e.de>,
        Dmitry Safonov <dima@...sta.com>,
        Josh Poimboeuf <jpoimboe@...hat.com>
Subject: Re: [PATCH] x86/process: Export start_thread()

On Sun, 19 Aug 2018, Andy Lutomirski wrote:
> > On Aug 19, 2018, at 4:08 PM, Rian Hunter <rian@...m.mit.edu> wrote:
> > 
> > Commit e634d8fc792c ("x86-64: merge the standard and compat
> > start_thread() functions") removed exporting for the start_thread()
> > function in what seems like a typo. Add it back to
> > arch/x86/kernel/process_64.c for parity with process_32.c and other
> > arch.
> 
> What for?  Perhaps 32-bit could remove it instead?

No. start_thread() is called from various binfmt implementations which can
be built as modules.

Thanks,

	tglx