linux-kernel - Re: [PATCH RESEND] x86: iosf_mbi: Provide dummy functions if CONFIG_IOSF

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Date:	Mon, 24 Feb 2014 13:29:16 +0000
From:	One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	"David E. Box" <david.e.box@...ux.intel.com>, tglx@...utronix.de,
	mingo@...hat.com, x86@...nel.org, linux-kernel@...r.kernel.org,
	srinivas.pandruvada@...ux.intel.com, jacob.jun.pan@...el.com
Subject: Re: [PATCH RESEND] x86: iosf_mbi: Provide dummy functions if
 CONFIG_IOSF_MBI not set

On Mon, 24 Feb 2014 05:21:43 -0800
"H. Peter Anvin" <hpa@...or.com> wrote:

> On 02/24/2014 05:19 AM, One Thousand Gnomes wrote:
> >
> > Other than _available I would have expected all the others to resolve to
> > returning an error or doing a WARN() in the not compiled in case.
> >
> 
> WARN() or BUG()?

WARN I think. The usage cases I am aware of don't end up in catastrophic
failure if you get this wrong, but would be annoying to debug if missed.

Alan
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