linux-kernel - Re: [PATCH 6/9] x86/iommu: change Calgary to use dma

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Message-ID: <20080930183310.GB20341@il.ibm.com>
Date:	Tue, 30 Sep 2008 21:33:10 +0300
From:	Muli Ben-Yehuda <muli@...ibm.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Joerg Roedel <joerg.roedel@....com>, linux-kernel@...r.kernel.org,
	kvm@...r.kernel.org, iommu@...ts.linux-foundation.org,
	David Woodhouse <dwmw2@...radead.org>,
	Amit Shah <amit.shah@...ranet.com>,
	Ingo Molnar <mingo@...hat.com>,
	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
Subject: Re: [PATCH 6/9] x86/iommu: change Calgary to use dma_ops register
	interface

On Tue, Sep 30, 2008 at 05:38:15PM +0200, Ingo Molnar wrote:
> 
> * Muli Ben-Yehuda <muli@...ibm.com> wrote:
> 
> > > > +static int calgary_device_supported(struct device *dev)
> > > > +{
> > > > +	return translation_enabled(find_iommu_table(dev));
> > > > +}
> > 
> > Sure, but I prefer the explicit form since it lends itself to easier
> > debugging (oops line numbers, adding printks, etc.).
> 
> we never do that for simple stuff like this. The kernel would be
> twice as large if we did.

I assume you are talking about the source size, because the generated
code size should be exactly the same.

In any case, arguing where to place the semi-colon is a waste of
time. Do as you see fit.

Cheers,
Muli
-- 
The First Workshop on I/O Virtualization (WIOV '08)
Dec 2008, San Diego, CA, http://www.usenix.org/wiov08/
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