linux-kernel - Re: [PATCH] platform/x86: acer-wmi: Silence "unsupported" message a bit

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Date:   Fri, 17 Aug 2018 21:30:12 +1000
From:   Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     "Lee, Chun-Yi" <jlee@...e.com>, Darren Hart <dvhart@...radead.org>,
        Platform Driver <platform-driver-x86@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] platform/x86: acer-wmi: Silence "unsupported" message a
 bit

On Fri, 2018-08-17 at 14:27 +0300, Andy Shevchenko wrote:
> On Fri, Aug 17, 2018 at 2:22 PM, Benjamin Herrenschmidt
> <benh@...nel.crashing.org> wrote:
> > On Fri, 2018-08-17 at 14:09 +0300, Andy Shevchenko wrote:
> > > On Fri, Aug 17, 2018 at 2:07 PM, Andy Shevchenko
> > > <andy.shevchenko@...il.com> wrote:
> > > > On Thu, Aug 16, 2018 at 2:27 AM, Benjamin Herrenschmidt
> > > > <benh@...nel.crashing.org> wrote:
> > > > > This driver prints that "Unsupported machine..." message on every boot on
> > > > > ThinkPad X1 Carbon laptops (and I assume a number of other systems), which
> > > > > causes graphical boots to "glitch" a bit and is rather annoying ...
> > > > > 
> > > > > Make it a pr_debug instead.
> > > > 
> > > > Thanks for the patch. Unfortunately it doesn't apply.
> > > > Please, check your mail clients and tools for formatting patch (it
> > > > produced at the end spaces instead of tabs)
> > > 
> > > No need to resend _this_ time. I have pushed to my review and testing queue.
> > 
> > Thanks, odd. Not sure what's going on with the latest evolution, it's
> > the second time it's done this. I'll try to investigate. Small patch
> > like that I tend to just copy/paste in an email in "preformat" style
> > ;-)
> 
> Evolution is totally broken for years already (yes, I'm still using it
> due to Outlook Web Services support, but it's utter PITA).
> I could just easily come up with couple of dozens of bugs that are
> present there for more than 3 years.

I had reasonably good luck getting bugs fixed by reporting them via
Fedora actually. But yeah, something with the composer tends to break
regularly.

Cheers,
Ben.

> > 
> > Cheers,
> > Ben.
> > > 
> > > > > 
> > > > > Signed-off-by: Benjamin Herrenschmidt <benh@...nel.crashing.org>
> > > > > ---
> > > > > 
> > > > > diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
> > > > > index 8952173dd380..7f7192e8fdab 100644
> > > > > --- a/drivers/platform/x86/acer-wmi.c
> > > > > +++ b/drivers/platform/x86/acer-wmi.c
> > > > > @@ -2216,7 +2216,7 @@ static int __init acer_wmi_init(void)
> > > > >         if (wmi_has_guid(AMW0_GUID1) &&
> > > > >             !dmi_check_system(amw0_whitelist) &&
> > > > >             quirks == &quirk_unknown) {
> > > > > -               pr_err("Unsupported machine has AMW0_GUID1, unable to load\n");
> > > > > +               pr_debug("Unsupported machine has AMW0_GUID1, unable to load\n");
> > > > >                 return -ENODEV;
> > > > >         }
> > > > > 
> > > > > 
> > > > 
> > > > 
> > > > 
> > > > --
> > > > With Best Regards,
> > > > Andy Shevchenko
> > > 
> > > 
> > > 
> 
> 
>