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

On Sat, 2011-07-16 at 12:57 +0000, KY Srinivasan wrote:

quoted

-----Original Message-----
From: Christoph Hellwig [mailto:hch@infradead.org]
Sent: Friday, July 15, 2011 10:05 PM
To: KY Srinivasan
Cc: gregkh@suse.de; linux-kernel@vger.kernel.org;
devel@linuxdriverproject.org; virtualization@lists.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.

quoted

+	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().

Is think that what Christoph meant was simplifying it to:

	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;

-- 

Sasha.