linux-kernel - Re: [PATCH 04/28] nios2: Exception handling

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Message-ID: <CAMuHMdX1xxuWhhBH0TKMtSEek5QDYchNVtC9QKoFQGr454_GVA@mail.gmail.com>
Date:	Wed, 23 Apr 2014 09:20:42 +0200
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Ley Foon Tan <lftan@...era.com>
Cc:	Arnd Bergmann <arnd@...db.de>,
	Linux-Arch <linux-arch@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	cltang@...esourcery.com
Subject: Re: [PATCH 04/28] nios2: Exception handling

Hi Ley,

On Wed, Apr 23, 2014 at 4:47 AM, Ley Foon Tan <lftan@...era.com> wrote:
> On Tue, Apr 22, 2014 at 8:33 PM, Arnd Bergmann <arnd@...db.de> wrote:
>> On Friday 18 April 2014, Ley Foon Tan wrote:
>>> +static const struct file_operations misalign_fops = {
>>> +       .open           = proc_misaligned_open,
>>> +       .read           = seq_read,
>>> +       .llseek         = seq_lseek,
>>> +       .release        = single_release,
>>> +       .write          = proc_misaligned_write,
>>> +};
>>> +#endif /* CONFIG_PROC_FS */
>>
>> We really shouldn't be doing new architecture specific procfs files
>> any more. I suggest you drop this one for now, and add back the
>> functionality using perf or ftrace at a later point.
>
> Okay, will remove this.

MIPS and powerpc handle this through debugfs, cfr.
arch/mips/kernel/unaligned.c and arch/powerpc/kernel/traps.c.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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