linux-kernel - Re: [v4l-dvb-maintainer] [PATCH] dvb: usb vendor_ids/product_ids are _

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Message-ID: <37219a840811141115g539ef85fo81136ebd479f016f@mail.gmail.com>
Date:	Fri, 14 Nov 2008 14:15:10 -0500
From:	"Michael Krufky" <mkrufky@...uxtv.org>
To:	"Harvey Harrison" <harvey.harrison@...il.com>
Cc:	"Mauro Carvalho Chehab" <mchehab@...radead.org>,
	v4l-maintainer <v4l-dvb-maintainer@...uxtv.org>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [v4l-dvb-maintainer] [PATCH] dvb: usb vendor_ids/product_ids are __le16

On Fri, Nov 14, 2008 at 2:07 PM, Harvey Harrison
<harvey.harrison@...il.com> wrote:
> On Fri, 2008-11-14 at 14:05 -0500, Michael Krufky wrote:
>> Wouldn't it be nicer to just switch on
>> cpu_to_le16(udev->descriptor.idVendor) ?  This would be a 1-line change,
>> compile to a smaller footprint, and be easier to read.
>>
>> Personally, I prefer to try to avoid duplicating code in places where a
>> single operation may occur centrally.
>
> On a little-endian arch it makes no difference obviously, but on a
> big-endian arch it's the difference between compile-time and runtime
> byteswapping.
>

Its not my driver, but I think that doing the operation on the switch
is prettier than doing it on each case statement.  Also, it would
avoid future bugs, if somebody decides to add new cases to the switch
block.

-Mike
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