linux-kernel - Re: [PATCH 3/3] perf bench sched-seccomp-notify: Fix __NR

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Date:   Tue, 21 Nov 2023 10:57:17 -0800
From:   Namhyung Kim <namhyung@...nel.org>
To:     Yang Jihong <yangjihong1@...wei.com>
Cc:     peterz@...radead.org, mingo@...hat.com, acme@...nel.org,
        mark.rutland@....com, alexander.shishkin@...ux.intel.com,
        jolsa@...nel.org, irogers@...gle.com, adrian.hunter@...el.com,
        avagin@...gle.com, daniel.diaz@...aro.org,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] perf bench sched-seccomp-notify: Fix __NR_seccomp
 undeclared build error on i386

Hello,

On Fri, Nov 17, 2023 at 6:51 PM Yang Jihong <yangjihong1@...wei.com> wrote:
>
> Fix a build error on i386 system:
>
> bench/sched-seccomp-notify.c: In function 'seccomp':
> bench/sched-seccomp-notify.c:46:17: error: '__NR_seccomp' undeclared (first use in this function); did you mean 'seccomp'?
>   return syscall(__NR_seccomp, op, flags, args);
>                  ^~~~~~~~~~~~
>                  seccomp
> bench/sched-seccomp-notify.c:46:17: note: each undeclared identifier is reported only once for each function it appears in
> bench/sched-seccomp-notify.c:47:1: error: control reaches end of non-void function [-Werror=return-type]
>  }
>  ^
> cc1: all warnings being treated as errors
>
> Fixes: 7d5cb68af638 ("perf/benchmark: add a new benchmark for seccom_unotify")
> Signed-off-by: Yang Jihong <yangjihong1@...wei.com>

This is already fixed by:
  https://lore.kernel.org/all/20231017083019.31733-1-jirislaby@kernel.org/

Thanks,
Namhyung


> ---
>  tools/arch/x86/include/uapi/asm/unistd_32.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/tools/arch/x86/include/uapi/asm/unistd_32.h b/tools/arch/x86/include/uapi/asm/unistd_32.h
> index 4798f9d18fe8..9de35df1afc3 100644
> --- a/tools/arch/x86/include/uapi/asm/unistd_32.h
> +++ b/tools/arch/x86/include/uapi/asm/unistd_32.h
> @@ -26,6 +26,6 @@
>  #ifndef __NR_setns
>  #define __NR_setns 346
>  #endif
> -#ifdef __NR_seccomp
> +#ifndef __NR_seccomp
>  #define __NR_seccomp 354
>  #endif
> --
> 2.34.1
>