linux-kernel - RE: [PATCH 097/117] Staging: hv: storvsc: Add code to handle IDE devices using the storvsc driver

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Message-ID: <6E21E5352C11B742B20C142EB499E0480817A4DA@TK5EX14MBXC124.redmond.corp.microsoft.com>
Date:	Sat, 16 Jul 2011 12:57:29 +0000
From:	KY Srinivasan <kys@...rosoft.com>
To:	Christoph Hellwig <hch@...radead.org>
CC:	"gregkh@...e.de" <gregkh@...e.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devel@...uxdriverproject.org" <devel@...uxdriverproject.org>,
	"virtualization@...ts.osdl.org" <virtualization@...ts.osdl.org>,
	Haiyang Zhang <haiyangz@...rosoft.com>
Subject: RE: [PATCH 097/117] Staging: hv: storvsc: Add code to handle IDE
 devices using the storvsc driver



> -----Original Message-----
> From: Christoph Hellwig [mailto:hch@...radead.org]
> Sent: Friday, July 15, 2011 10:05 PM
> To: KY Srinivasan
> Cc: gregkh@...e.de; linux-kernel@...r.kernel.org;
> devel@...uxdriverproject.org; virtualization@...ts.osdl.org; Haiyang Zhang
> Subject: Re: [PATCH 097/117] Staging: hv: storvsc: Add code to handle IDE devices
> using the storvsc driver
> 
> Thanks, this looks much cleaner than the initial variant.
> 
> > +	if (dev_is_ide) {
> > +		storvsc_get_ide_info(device, &target, &path);
> > +		host_dev->path = device_info.path_id;
> > +		host_dev->target = device_info.target_id;
> > +	} else {
> > +		host_dev->path = device_info.path_id;
> > +		host_dev->target = device_info.target_id;
> > +	}
> 
> Is using the device_info values in both branches intentional?  If so
> there's no need to have these assignments duplicated.

While we set the values in both the branches, the value set is different;
The IDE side encodes the bits differently and is appropriately parsed in the
function storvsc_get_ide_info().

Regards,

K. Y
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