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

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Date:	Tue, 10 Mar 2015 16:14:53 +0100
From:	Greg KH <gregkh@...uxfoundation.org>
To:	KY Srinivasan <kys@...rosoft.com>
Cc:	"apw@...onical.com" <apw@...onical.com>,
	"devel@...uxdriverproject.org" <devel@...uxdriverproject.org>,
	"olaf@...fle.de" <olaf@...fle.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH V2 1/7] Drivers: hv: vmbus: Export the
 vmbus_sendpacket_pagebuffer_ctl()

On Tue, Mar 10, 2015 at 03:05:26PM +0000, KY Srinivasan wrote:
> 
> 
> > -----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.

Then just send it as part of the netvsc patches please.

> 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

That should have been pointed out somewhere :)

> Do you want me to resend this set?

Yes, please do.  Break it up into two different sets, one for 4.0-final,
and one for 4.1-rc1.

thanks,

greg k-h
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