linux-kernel - Re: [PATCH v2 5/5] KVM: selftests: Remove __NR

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Message-ID: <CANgfPd_Vh52oWyMMcqL2iTVgcXQp3QDsM5MrAZxr=xe33rPMhg@mail.gmail.com>
Date:   Mon, 23 Aug 2021 16:46:30 -0700
From:   Ben Gardon <bgardon@...gle.com>
To:     Sean Christopherson <seanjc@...gle.com>
Cc:     Russell King <linux@...linux.org.uk>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, Guo Ren <guoren@...nel.org>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Michael Ellerman <mpe@...erman.id.au>,
        Heiko Carstens <hca@...ux.ibm.com>,
        Vasily Gorbik <gor@...ux.ibm.com>,
        Christian Borntraeger <borntraeger@...ibm.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Ingo Molnar <mingo@...hat.com>,
        Oleg Nesterov <oleg@...hat.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Peter Zijlstra <peterz@...radead.org>,
        Andy Lutomirski <luto@...nel.org>,
        Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
        "Paul E. McKenney" <paulmck@...nel.org>,
        Boqun Feng <boqun.feng@...il.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Shuah Khan <shuah@...nel.org>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        linux-arm-kernel@...ts.infradead.org,
        LKML <linux-kernel@...r.kernel.org>, linux-csky@...r.kernel.org,
        linux-mips@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-s390@...r.kernel.org, kvm <kvm@...r.kernel.org>,
        linux-kselftest@...r.kernel.org, Peter Foley <pefoley@...gle.com>,
        Shakeel Butt <shakeelb@...gle.com>
Subject: Re: [PATCH v2 5/5] KVM: selftests: Remove __NR_userfaultfd syscall fallback

On Fri, Aug 20, 2021 at 3:50 PM Sean Christopherson <seanjc@...gle.com> wrote:
>
> Revert the __NR_userfaultfd syscall fallback added for KVM selftests now
> that x86's unistd_{32,63}.h overrides are under uapi/ and thus not in
> KVM sefltests' search path, i.e. now that KVM gets x86 syscall numbers
> from the installed kernel headers.
>
> No functional change intended.
>
> Cc: Ben Gardon <bgardon@...gle.com>
> Signed-off-by: Sean Christopherson <seanjc@...gle.com>

Reviewed-by: Ben Gardon <bgardon@...gle.com>

> ---
>  tools/arch/x86/include/uapi/asm/unistd_64.h | 3 ---
>  1 file changed, 3 deletions(-)
>
> diff --git a/tools/arch/x86/include/uapi/asm/unistd_64.h b/tools/arch/x86/include/uapi/asm/unistd_64.h
> index 4205ed4158bf..cb52a3a8b8fc 100644
> --- a/tools/arch/x86/include/uapi/asm/unistd_64.h
> +++ b/tools/arch/x86/include/uapi/asm/unistd_64.h
> @@ -1,7 +1,4 @@
>  /* SPDX-License-Identifier: GPL-2.0 */
> -#ifndef __NR_userfaultfd
> -#define __NR_userfaultfd 282
> -#endif
>  #ifndef __NR_perf_event_open
>  # define __NR_perf_event_open 298
>  #endif
> --
> 2.33.0.rc2.250.ged5fa647cd-goog
>