linux-kernel - Re: [PATCH] platform/x86: wmi: Fix printing info about WDG structure

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Message-Id: <201706082018.24251@pali>
Date:   Thu, 8 Jun 2017 20:18:24 +0200
From:   Pali Rohár <pali.rohar@...il.com>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     Joe Perches <joe@...ches.com>, Darren Hart <dvhart@...radead.org>,
        Andy Shevchenko <andy@...radead.org>,
        Andy Lutomirski <luto@...nel.org>,
        Platform Driver <platform-driver-x86@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] platform/x86: wmi: Fix printing info about WDG structure

On Thursday 08 June 2017 19:44:39 Andy Shevchenko wrote:
> On Thu, Jun 8, 2017 at 8:42 PM, Andy Shevchenko
> 
> <andy.shevchenko@...il.com> wrote:
> > On Thu, Jun 8, 2017 at 6:38 PM, Joe Perches <joe@...ches.com> wrote:
> >> On Thu, 2017-06-08 at 08:16 -0700, Darren Hart wrote:
> >>> On Sat, May 27, 2017 at 11:49:22PM +0300, Andy Shevchenko wrote:
> >>> > On Sat, May 27, 2017 at 11:48 PM, Pali Rohár
> >>> > <pali.rohar@...il.com> wrote:
> >>> > > On Saturday 27 May 2017 15:33:14 Andy Shevchenko wrote:
> >> Perhaps
> >> 
> >>         pr_info("\t%*pE\n", (int)sizeof(g->object_id),
> >>         g->object_id);
> > 
> > It will print some noisy characters as far as I understood the
> > initial intention.
> 
> Ah, sorry, it will work, though sligtly differently. It will take
> extra argument from the stack which we can avoid. I don't expect the
> size of that growing. Pali?

ObjectID is always 2 bytes. And it should be printable ASCII (probably 
only [A-Za-z0-9_]) as it is used as ACPI method name.

Size is not going to change.

-- 
Pali Rohár
pali.rohar@...il.com

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