linux-kernel - Re: [PATCH 12/18] arm64: ilp32: add sys_ilp32.c and a separate table (in entry.S) to use it

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Date:   Fri, 02 Sep 2016 14:55:34 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     libc-alpha@...rceware.org
Cc:     Bamvor Jian Zhang <bamvor.zhangjian@...wei.com>,
        Yury Norov <ynorov@...iumnetworks.com>,
        catalin.marinas@....com, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
        linux-arch@...r.kernel.org, schwidefsky@...ibm.com,
        heiko.carstens@...ibm.com, pinskia@...il.com, broonie@...nel.org,
        joseph@...esourcery.com, christoph.muellner@...obroma-systems.com,
        szabolcs.nagy@....com, klimov.linux@...il.com,
        Nathan_Lynch@...tor.com, agraf@...e.de,
        Prasun.Kapoor@...iumnetworks.com, kilobyte@...band.pl,
        geert@...ux-m68k.org, philipp.tomsich@...obroma-systems.com,
        manuel.montezelo@...il.com, linyongting@...wei.com,
        maxim.kuvyrkov@...aro.org, davem@...emloft.net,
        zhouchengming1@...wei.com, cmetcalf@...hip.com,
        Andrew Pinski <apinski@...ium.com>,
        Andrew Pinski <Andrew.Pinski@...iumnetworks.com>,
        Hanjun Guo <guohanjun@...wei.com>,
        chenjianguo 00365834 <chenjianguo3@...wei.com>,
        jijun 00321192 <jijun2@...wei.com>
Subject: Re: [PATCH 12/18] arm64: ilp32: add sys_ilp32.c and a separate table (in entry.S) to use it

On Friday, September 2, 2016 6:46:19 PM CEST Bamvor Jian Zhang wrote:
> diff --git a/arch/arm64/include/uapi/asm/unistd.h b/arch/arm64/include/uapi/asm/unistd.h
> index 043d17a..78bea1d 100644
> --- a/arch/arm64/include/uapi/asm/unistd.h
> +++ b/arch/arm64/include/uapi/asm/unistd.h
> @@ -16,4 +16,9 @@
> 
>  #define __ARCH_WANT_RENAMEAT
> 
> +/* We need to make sure it works for both userspace and kernel(sys_ilp32.c) */
> +#if defined(__ILP32__) || defined(__SYSCALL_COMPAT)
> +#define __ARCH_WANT_SYNC_FILE_RANGE2
> +#endif
> +
>  #include <asm-generic/unistd.h>
> diff --git a/arch/arm64/kernel/sys_ilp32.c b/arch/arm64/kernel/sys_ilp32.c
> index 10fc0ca..13c9c9d 100644
> --- a/arch/arm64/kernel/sys_ilp32.c
> +++ b/arch/arm64/kernel/sys_ilp32.c
> @@ -42,7 +42,7 @@
>  #define compat_sys_pwrite64            compat_sys_pwrite64_wrapper
>  #define compat_sys_readahead           compat_sys_readahead_wrapper
>  #define compat_sys_shmat               sys_shmat
> -#define compat_sys_sync_file_range     compat_sys_sync_file_range2_wrapper
> +#define compat_sys_sync_file_range2    compat_sys_sync_file_range2_wrapper
>  #define compat_sys_truncate64          compat_sys_truncate64_wrapper
>  #define sys_mmap2                      compat_sys_mmap2_wrapper
>  #define sys_ptrace                     compat_sys_ptrace
> 

Looks good to me.

	Arnd