Re: [PATCH 1/2] xtensa: remove nargs from __SYSCALL

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On Wed, Jan 2, 2019 at 7:29 AM Firoz Khan <firoz.khan@xxxxxxxxxx> wrote:
>
> The __SYSCALL macro's arguments are system call number,
> system call entry name and number of arguments for the
> system call.
>
> Argument- nargs in __SYSCALL(nr, entry, nargs) is neither
> calculated nor used anywhere. So it would be better to
> keep the implementaion as  __SYSCALL(nr, entry). This will
> unifies the implementation with some other architetures
> too.

Perhaps "This will help unify the implementation with other architectures"?

> Signed-off-by: Firoz Khan <firoz.khan@xxxxxxxxxx>
> ---
>  arch/xtensa/kernel/syscall.c              | 2 +-
>  arch/xtensa/kernel/syscalls/syscalltbl.sh | 4 ++--
>  2 files changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/arch/xtensa/kernel/syscall.c b/arch/xtensa/kernel/syscall.c
> index 2c415fc..0665339 100644
> --- a/arch/xtensa/kernel/syscall.c
> +++ b/arch/xtensa/kernel/syscall.c
> @@ -31,7 +31,7 @@
>  syscall_t sys_call_table[__NR_syscalls] /* FIXME __cacheline_aligned */= {
>         [0 ... __NR_syscalls - 1] = (syscall_t)&sys_ni_syscall,
>
> -#define __SYSCALL(nr, entry, nargs)[nr] = (syscall_t)entry,
> +#define __SYSCALL(nr, entry)[nr] = (syscall_t)entry,
>  #include <asm/syscall_table.h>
>  #undef __SYSCALL
>  };
> diff --git a/arch/xtensa/kernel/syscalls/syscalltbl.sh b/arch/xtensa/kernel/syscalls/syscalltbl.sh
> index 85d78d9..904b8e6 100644
> --- a/arch/xtensa/kernel/syscalls/syscalltbl.sh
> +++ b/arch/xtensa/kernel/syscalls/syscalltbl.sh
> @@ -13,10 +13,10 @@ emit() {
>         t_entry="$3"
>
>         while [ $t_nxt -lt $t_nr ]; do
> -               printf "__SYSCALL(%s, sys_ni_syscall, )\n" "${t_nxt}"
> +               printf "__SYSCALL(%s,sys_ni_syscall)\n" "${t_nxt}"

Please add space after the comma.

>                 t_nxt=$((t_nxt+1))
>         done
> -       printf "__SYSCALL(%s, %s, )\n" "${t_nxt}" "${t_entry}"
> +       printf "__SYSCALL(%s,%s)\n" "${t_nxt}" "${t_entry}"

Ditto.

>  }
>
>  grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
> --
> 1.9.1

With the above changes:
Acked-by: Max Filippov <jcmvbkbc@xxxxxxxxx>

-- 
Thanks.
-- Max



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