linux-kernel - Re: [PATCH 1/4] x86: use the correct function type in SYSCALL

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Message-ID: <CALCETrXDRY_q+-C24qZd3FNMLS2W8yCBOSMOHaA7jiVD-ayVNQ@mail.gmail.com>
Date:   Fri, 13 Sep 2019 15:33:40 -0700
From:   Andy Lutomirski <luto@...nel.org>
To:     Sami Tolvanen <samitolvanen@...gle.com>
Cc:     Andy Lutomirski <luto@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "H . Peter Anvin" <hpa@...or.com>,
        Kees Cook <keescook@...omium.org>, X86 ML <x86@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/4] x86: use the correct function type in SYSCALL_DEFINE0

On Fri, Sep 13, 2019 at 2:00 PM Sami Tolvanen <samitolvanen@...gle.com> wrote:
>
> Although a syscall defined using SYSCALL_DEFINE0 doesn't accept
> parameters, use the correct function type to avoid type mismatches
> with Control-Flow Integrity (CFI) checking.

Acked-by: Andy Lutomirski <luto@...nel.org>