On Mon, 18 Feb 2019, Greg Kroah-Hartman wrote: > 4.4-stable review patch. If anyone has any objections, please let me know. > > ------------------ > > [ Upstream commit e86108940e541febf35813402ff29fa6f4a9ac0b ] > > When initializing a hub we want to give a USB3 port in link training > the same debounce delay time before autosuspening the hub as already > trained, connected enabled ports. > > USB3 ports won't reach the enabled state with "current connect status" and > "connect status change" bits set until the USB3 link training finishes. > > Catching the port in link training (polling) and adding the debounce delay > prevents unnecessary failed attempts to autosuspend the hub. > > Signed-off-by: Mathias Nyman <mathias.nyman@xxxxxxxxxxxxxxx> > Acked-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> > Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> > Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> We should be careful with this commit; it has caused problems for some people. Mathias has been working to fix them, but this commit shouldn't go into -stable until the fixes are also ready to go. Alan Stern
