linux-kernel - Re: [PATCH v2 14/29] arch: add pkey and rseq syscall numbers everywhere

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Message-Id: <20190121115905.GC4020@osiris>
Date:   Mon, 21 Jan 2019 12:59:05 +0100
From:   Heiko Carstens <heiko.carstens@...ibm.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     y2038@...ts.linaro.org, linux-api@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
        mattst88@...il.com, linux@...linux.org.uk, catalin.marinas@....com,
        will.deacon@....com, tony.luck@...el.com, fenghua.yu@...el.com,
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        linux-alpha@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
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        linux-sh@...r.kernel.org, sparclinux@...r.kernel.org,
        netdev@...r.kernel.org, linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH v2 14/29] arch: add pkey and rseq syscall numbers
 everywhere

On Fri, Jan 18, 2019 at 05:18:20PM +0100, Arnd Bergmann wrote:
> Most architectures define system call numbers for the rseq and pkey system
> calls, even when they don't support the features, and perhaps never will.
> 
> Only a few architectures are missing these, so just define them anyway
> for consistency. If we decide to add them later to one of these, the
> system call numbers won't get out of sync then.
> 
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> ---
>  arch/alpha/include/asm/unistd.h         | 4 ----
>  arch/alpha/kernel/syscalls/syscall.tbl  | 4 ++++
>  arch/ia64/kernel/syscalls/syscall.tbl   | 4 ++++
>  arch/m68k/kernel/syscalls/syscall.tbl   | 4 ++++
>  arch/parisc/include/asm/unistd.h        | 3 ---
>  arch/parisc/kernel/syscalls/syscall.tbl | 4 ++++
>  arch/s390/include/asm/unistd.h          | 3 ---
>  arch/s390/kernel/syscalls/syscall.tbl   | 3 +++
>  arch/sh/kernel/syscalls/syscall.tbl     | 4 ++++
>  arch/sparc/include/asm/unistd.h         | 5 -----
>  arch/sparc/kernel/syscalls/syscall.tbl  | 4 ++++
>  arch/xtensa/kernel/syscalls/syscall.tbl | 1 +
>  12 files changed, 28 insertions(+), 15 deletions(-)

For the s390 bits:
Acked-by: Heiko Carstens <heiko.carstens@...ibm.com>