Re: [PATCH V2 1/7] Drivers: hv: vmbus: Export the vmbus_sendpacket_pagebuffer_ctl()

From: Greg KH
Date: Tue Mar 10 2015 - 11:15:08 EST

On Tue, Mar 10, 2015 at 03:05:26PM +0000, KY Srinivasan wrote:
> > -----Original Message-----
> > From: Greg KH [mailto:gregkh@xxxxxxxxxxxxxxxxxxx]
> > Sent: Tuesday, March 10, 2015 12:42 AM
> > To: KY Srinivasan
> > Cc: linux-kernel@xxxxxxxxxxxxxxx; devel@xxxxxxxxxxxxxxxxxxxxxx;
> > olaf@xxxxxxxxx; apw@xxxxxxxxxxxxx; vkuznets@xxxxxxxxxx
> > 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.


greg k-h
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