cdc_ether: Do not set link down initially; not all devices send link change interrupts

svn path=/dists/trunk/linux-2.6/; revision=15060

debian/changelog

@@ -51,6 +51,8 @@ linux-2.6 (2.6.32-6) UNRELEASED; urgency=low
   * postinst: Enable escape sequences in debconf notes (Closes: #566539)
   * Add 3w-sas driver for LSI 3ware 9750 SAS controllers
   * aufs2: Update to snapshot from 2010-01-25 (Closes: #567391)
+  * cdc_ether: Do not set link down initially; not all devices send link
+    change interrupts
 
   [ Ian Campbell ]
   * xen: Enable up to 32G of guest memory on i386.

debian/patches/bugfix/all/cdc_ether-Partially-revert-usbnet-Set-link-down-init.patch

@@ -0,0 +1,36 @@
+From ee3585e8db845cba146ecfd829b8c37f1447e1a7 Mon Sep 17 00:00:00 2001
+From: Ben Hutchings <ben@decadent.org.uk>
+Date: Thu, 28 Jan 2010 23:11:20 +0000
+Subject: [PATCH] cdc_ether: Partially revert "usbnet: Set link down initially ..."
+
+Commit 37e8273cd30592d3a82bcb70cbb1bdc4eaeb6b71 ("usbnet: Set link down
+initially for drivers that update link state") changed the initial link
+state in cdc_ether and other drivers based on the understanding that the
+devices they support generate link change interrupts.  However, this is
+optional in the CDC Ethernet protocol, and two users have reported in
+<http://bugzilla.kernel.org/show_bug.cgi?id=14791> that the link state
+for their devices remains down.  Therefore, revert the change in
+cdc_ether.
+
+Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
+Tested-by: Avi Rozen <avi.rozen@gmail.com>
+---
+ drivers/net/usb/cdc_ether.c |    2 +-
+ 1 files changed, 1 insertions(+), 1 deletions(-)
+
+diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c
+index 21e183a..4f27f02 100644
+--- a/drivers/net/usb/cdc_ether.c
++++ b/drivers/net/usb/cdc_ether.c
+@@ -419,7 +419,7 @@ static int cdc_manage_power(struct usbnet *dev, int on)
+ 
+ static const struct driver_info	cdc_info = {
+ 	.description =	"CDC Ethernet Device",
+-	.flags =	FLAG_ETHER | FLAG_LINK_INTR,
++	.flags =	FLAG_ETHER,
+ 	// .check_connect = cdc_check_connect,
+ 	.bind =		cdc_bind,
+ 	.unbind =	usbnet_cdc_unbind,
+-- 
+1.6.6
+

debian/patches/series/6

@@ -34,3 +34,4 @@
 + bugfix/all/clockevents-Add-missing-include.patch
 + features/all/SCSI-3w-sas-Add-new-driver-for-LSI-3ware-9750.patch
 + features/all/aufs2/aufs2-20100125.patch
++ bugfix/all/cdc_ether-Partially-revert-usbnet-Set-link-down-init.patch