From: kfraser@localhost.localdomain <kfraser@localhost.localdomain>
Date: Thu, 26 Oct 2006 10:50:17 +0000 (+0100)
Subject: [NET] back: Advertise that we do not support rx-flip path any more.
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~15567^2~199
X-Git-Url: https://dgit.raspbian.org/%22http://www.example.com/cgi/success//%22http:/www.example.com/cgi/success/?a=commitdiff_plain;h=98c075c8048f38f570c7058ded8eb68f36ef2816;p=xen.git

[NET] back: Advertise that we do not support rx-flip path any more.
This will now be used only by older guests who do not understand
the feature-rx-{copy,flip} feature flags.
Signed-off-by: Keir Fraser <keir@xensource.com>
---

diff --git a/linux-2.6-xen-sparse/drivers/xen/netback/xenbus.c b/linux-2.6-xen-sparse/drivers/xen/netback/xenbus.c
index b81042d701..7d301965f4 100644
--- a/linux-2.6-xen-sparse/drivers/xen/netback/xenbus.c
+++ b/linux-2.6-xen-sparse/drivers/xen/netback/xenbus.c
@@ -93,10 +93,22 @@ static int netback_probe(struct xenbus_device *dev,
 			goto abort_transaction;
 		}
 
+		/* We support rx-copy path. */
 		err = xenbus_printf(xbt, dev->nodename,
 				    "feature-rx-copy", "%d", 1);
 		if (err) {
-			message = "writing feature-copying";
+			message = "writing feature-rx-copy";
+			goto abort_transaction;
+		}
+
+		/*
+		 * We don't support rx-flip path (except old guests who don't
+		 * grok this feature flag).
+		 */
+		err = xenbus_printf(xbt, dev->nodename,
+				    "feature-rx-flip", "%d", 0);
+		if (err) {
+			message = "writing feature-rx-flip";
 			goto abort_transaction;
 		}