linux-kernel - RE: [PATCH V2 1/7] Drivers: hv: vmbus: Export the vmbus_sendpacket_pagebuffer

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Date:	Tue, 10 Mar 2015 15:05:26 +0000
From:	KY Srinivasan <kys@...rosoft.com>
To:	Greg KH <gregkh@...uxfoundation.org>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devel@...uxdriverproject.org" <devel@...uxdriverproject.org>,
	"olaf@...fle.de" <olaf@...fle.de>,
	"apw@...onical.com" <apw@...onical.com>,
	"vkuznets@...hat.com" <vkuznets@...hat.com>
Subject: RE: [PATCH V2 1/7] Drivers: hv: vmbus: Export the
 vmbus_sendpacket_pagebuffer_ctl()



> -----Original Message-----
> From: Greg KH [mailto:gregkh@...uxfoundation.org]
> Sent: Tuesday, March 10, 2015 12:42 AM
> To: KY Srinivasan
> Cc: linux-kernel@...r.kernel.org; devel@...uxdriverproject.org;
> olaf@...fle.de; apw@...onical.com; vkuznets@...hat.com
> Subject: Re: [PATCH V2 1/7] Drivers: hv: vmbus: Export the
> vmbus_sendpacket_pagebuffer_ctl()
> 
> On Fri, Mar 06, 2015 at 11:04:28PM -0800, K. Y. Srinivasan wrote:
> > Export the vmbus_sendpacket_pagebuffer_ctl() interface.
> 
> Why?  Nothing in this patch needs it.  Please include this in the patch that
> needs the symbol, or at least give a hint as to what is going on.
> 
> As it is, this just looks like a random export for no reason at all :(

This will be used by Hyper-V networking driver to optimize signaling on
the send path. I wanted these patches committed before I sent the networking
patch to David Miller. I implemented the two vmbus APIs for sending messages:
1) vmbus_sendpacket_ctl()
2) vmbus_sendpacket_pagebuffer_ctl()

and I forgot to export the second form of the send API in an earlier patch-set that you have
already  committed. I need both to be exported to
for the netvsc patch I have.

On a different note, upstream Linux is currently broken on Hyper-V and a patch in this set
Fixes it:
0002-Drivers-hv-vmbus-Perform-device-register-in-the-per-.patch

Do you want me to resend this set?

Regards,

K. Y


> 
> greg k-h
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