2.6.35.12 Version Please apply the upstream git commit c36b58e8a9112017c2bcc322cc98e71241814303 (Input: xen-kbdfront - fix mouse getting stuck after save/restore) which fixes a regression introduced by 8c3c283e6bf463ab498d6e7823aff6c4762314b6 (Input: xen-kbdfront - advertise either absolute or relative coordinates)
commit c36b58e8a9112017c2bcc322cc98e71241814303 Author: Igor Mammedov <[email protected]> Date: Mon Apr 18 10:17:17 2011 -0700 Input: xen-kbdfront - fix mouse getting stuck after save/restore Mouse gets "stuck" after restore of PV guest but buttons are in working condition. If driver has been configured for ABS coordinates at start it will get XENKBD_TYPE_POS events and then suddenly after restore it'll start getting XENKBD_TYPE_MOTION events, that will be dropped later and they won't get into user-space. Regression was introduced by hunk 5 and 6 of 5ea5254aa0ad269cfbd2875c973ef25ab5b5e9db ("Input: xen-kbdfront - advertise either absolute or relative coordinates"). Driver on restore should ask xen for request-abs-pointer again if it is available. So restore parts that did it before 5ea5254. Acked-by: Olaf Hering <[email protected]> Signed-off-by: Igor Mammedov <[email protected]> [v1: Expanded the commit description] Signed-off-by: Konrad Rzeszutek Wilk <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]> --- drivers/input/xen-kbdfront.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) Index: linux-2.6.35.12/drivers/input/xen-kbdfront.c =================================================================== --- linux-2.6.35.12.orig/drivers/input/xen-kbdfront.c +++ linux-2.6.35.12/drivers/input/xen-kbdfront.c @@ -285,7 +285,7 @@ static void xenkbd_backend_changed(struc enum xenbus_state backend_state) { struct xenkbd_info *info = dev_get_drvdata(&dev->dev); - int val; + int ret, val; switch (backend_state) { case XenbusStateInitialising: @@ -296,6 +296,17 @@ static void xenkbd_backend_changed(struc case XenbusStateInitWait: InitWait: + ret = xenbus_scanf(XBT_NIL, info->xbdev->otherend, + "feature-abs-pointer", "%d", &val); + if (ret < 0) + val = 0; + if (val) { + ret = xenbus_printf(XBT_NIL, info->xbdev->nodename, + "request-abs-pointer", "1"); + if (ret) + printk(KERN_WARNING + "xenkbd: can't request abs-pointer"); + } xenbus_switch_state(dev, XenbusStateConnected); break; _______________________________________________ stable mailing list [email protected] http://linux.kernel.org/mailman/listinfo/stable
