linux-kernel - Re: [PATCH 2/6] nds32: use uaccess_kernel in show

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Message-ID: <CAEbi=3dKwDQ5-wdxQagX2n5Z3tYeYwTcmDNqxPH=83Dy-VKA1w@mail.gmail.com>
Date:   Mon, 13 Jul 2020 18:02:44 +0800
From:   Greentime Hu <green.hu@...il.com>
To:     Christoph Hellwig <hch@....de>
Cc:     Nick Hu <nickhu@...estech.com>, Vincent Chen <deanbo422@...il.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        linux-riscv@...ts.infradead.org,
        linux-arch <linux-arch@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/6] nds32: use uaccess_kernel in show_regs

Christoph Hellwig <hch@....de> 於 2020年7月10日 週五 下午9:57寫道：
>
> Use the uaccess_kernel helper instead of duplicating it.
>
> Signed-off-by: Christoph Hellwig <hch@....de>
> ---
>  arch/nds32/kernel/process.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/nds32/kernel/process.c b/arch/nds32/kernel/process.c
> index 9712fd474f2ca3..f06265949ec28b 100644
> --- a/arch/nds32/kernel/process.c
> +++ b/arch/nds32/kernel/process.c
> @@ -121,7 +121,7 @@ void show_regs(struct pt_regs *regs)
>                 regs->uregs[3], regs->uregs[2], regs->uregs[1], regs->uregs[0]);
>         pr_info("  IRQs o%s  Segment %s\n",
>                 interrupts_enabled(regs) ? "n" : "ff",
> -               segment_eq(get_fs(), KERNEL_DS)? "kernel" : "user");
> +               uaccess_kernel() ? "kernel" : "user");
>  }
>
>  EXPORT_SYMBOL(show_regs);

Hi Christoph, Thank you.
Acked-by: Greentime Hu <green.hu@...il.com>