diff mbox

xen_hvc: no reason to write the type key on xenstore

Message ID alpine.DEB.2.02.1408111250150.2293@kaball.uk.xensource.com
State Accepted
Commit fb498df0787db0fb10a4a2cf91d0d3da13cc18f7
Headers show

Commit Message

Stefano Stabellini Aug. 11, 2014, 11:54 a.m. UTC
The backend type is chosen by the toolstack. Regardless, the frontend
should not care, especially given that it cannot have an effect as the
backend is started before this code is run.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>

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Comments

David Vrabel Aug. 11, 2014, 11:58 a.m. UTC | #1
On 11/08/14 12:54, Stefano Stabellini wrote:
> The backend type is chosen by the toolstack. Regardless, the frontend
> should not care, especially given that it cannot have an effect as the
> backend is started before this code is run.
> 
> Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>

Reviewed-by: David Vrabel <david.vrabel@citrix.com>

This needs go via the TTY subsystem (you didn't Cc the maintainers).

David
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Stefano Stabellini Aug. 11, 2014, 2:32 p.m. UTC | #2
CC'ing tty maintainers.

On Mon, 11 Aug 2014, Stefano Stabellini wrote:
> The backend type is chosen by the toolstack. Regardless, the frontend
> should not care, especially given that it cannot have an effect as the
> backend is started before this code is run.
> 
> Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
> 
> diff --git a/drivers/tty/hvc/hvc_xen.c b/drivers/tty/hvc/hvc_xen.c
> index 636c9ba..b8491f5 100644
> --- a/drivers/tty/hvc/hvc_xen.c
> +++ b/drivers/tty/hvc/hvc_xen.c
> @@ -402,9 +402,6 @@ static int xencons_connect_backend(struct xenbus_device *dev,
> 			    evtchn);
> 	if (ret)
> 		goto error_xenbus;
> -	ret = xenbus_printf(xbt, dev->nodename, "type", "ioemu");
> -	if (ret)
> -		goto error_xenbus;
> 	ret = xenbus_transaction_end(xbt, 0);
> 	if (ret) {
> 		if (ret == -EAGAIN)
> 
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Greg KH Aug. 12, 2014, 2:51 a.m. UTC | #3
On Mon, Aug 11, 2014 at 03:32:48PM +0100, Stefano Stabellini wrote:
> CC'ing tty maintainers.

Why?  Is that how you submit a patch to be included to the kernel tree?
(hint, the answer is no, and also you should cc: the linux-serial
list...)

greg k-h
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Stefano Stabellini Aug. 12, 2014, 9:06 a.m. UTC | #4
On Tue, 12 Aug 2014, Greg KH wrote:
> On Mon, Aug 11, 2014 at 03:32:48PM +0100, Stefano Stabellini wrote:
> > CC'ing tty maintainers.
> 
> Why?  Is that how you submit a patch to be included to the kernel tree?
> (hint, the answer is no, and also you should cc: the linux-serial
> list...)

Sorry, I resent it.
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diff mbox

Patch

diff --git a/drivers/tty/hvc/hvc_xen.c b/drivers/tty/hvc/hvc_xen.c
index 636c9ba..b8491f5 100644
--- a/drivers/tty/hvc/hvc_xen.c
+++ b/drivers/tty/hvc/hvc_xen.c
@@ -402,9 +402,6 @@  static int xencons_connect_backend(struct xenbus_device *dev,
			    evtchn);
	if (ret)
		goto error_xenbus;
-	ret = xenbus_printf(xbt, dev->nodename, "type", "ioemu");
-	if (ret)
-		goto error_xenbus;
	ret = xenbus_transaction_end(xbt, 0);
	if (ret) {
		if (ret == -EAGAIN)