netdev - Re: [PATCH, v2] Xen: consolidate and simplify struct xenbus

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Date:	Thu, 22 Dec 2011 14:44:27 +0000
From:	Ben Hutchings <bhutchings@...arflare.com>
To:	Ian Campbell <Ian.Campbell@...rix.com>
CC:	Jan Beulich <JBeulich@...e.com>,
	Konrad Rzeszutek Wilk <konrad@...nok.org>,
	"davem@...emloft.net" <davem@...emloft.net>,
	"dmitry.torokhov@...il.com" <dmitry.torokhov@...il.com>,
	"FlorianSchandinat@....de" <FlorianSchandinat@....de>,
	Jeremy Fitzhardinge <jeremy@...p.org>,
	Jens Axboe <axboe@...nel.dk>,
	"xen-devel@...ts.xensource.com" <xen-devel@...ts.xensource.com>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: [PATCH, v2] Xen: consolidate and simplify struct xenbus_driver
 instantiation

On Thu, 2011-12-22 at 11:57 +0000, Ian Campbell wrote:
> On Thu, 2011-12-22 at 11:51 +0000, Jan Beulich wrote:
> > >>> On 22.12.11 at 10:57, Ian Campbell <Ian.Campbell@...rix.com> wrote:
> > > On Thu, 2011-12-22 at 09:08 +0000, Jan Beulich wrote:
> > >> The 'name', 'owner', and 'mod_name' members are redundant with the
> > >> identically named fields in the 'driver' sub-structure. Rather than
> > >> switching each instance to specify these fields explicitly, introduce
> > >> a macro to simplify this.
> > >> 
> > >> Eliminate further redundancy by allowing the drvname argument to
> > >> DEFINE_XENBUS_DRIVER() to be blank (in which case the first entry from
> > >> the ID table will be used for .driver.name).
> > > 
> > > Any reason not to always use DRV_NAME here (which is generally a bit
> > > more specific e.g. "xen-foofront" rather than "foo") and rely on the id
> > > table for the shorter names used in xenstore?
> > 
> > That would imply that DRV_NAME is always defined, but I don't
> > see this being the case.
> 
> My mistake, I thought it was a Kbuild thing.

You're maybe thinking of KBUILD_MODNAME.

Ben.

-- 
Ben Hutchings, Staff Engineer, Solarflare
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.

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