Re: [PATCH] usb: Don't disable Latency tolerance Messaging (LTM) before port reset

2018-03-02 Thread Mathias Nyman
On 01.03.2018 20:07, Alan Stern wrote: On Thu, 1 Mar 2018, Mathias Nyman wrote: Disabing Latency Tolerance Messaging before port reset is unnecessary. LTM is automatically disabled at port reset. If host can't communicate with the device the LTM message will fail, and the hub driver will unnec

Re: [PATCH] usb: Don't disable Latency tolerance Messaging (LTM) before port reset

2018-03-01 Thread Alan Stern
On Thu, 1 Mar 2018, Mathias Nyman wrote: > Disabing Latency Tolerance Messaging before port reset is unnecessary. > LTM is automatically disabled at port reset. > > If host can't communicate with the device the LTM message will fail, and > the hub driver will unnecessarily do a logical disconnect

Re: [PATCH] usb: Don't disable Latency tolerance Messaging (LTM) before port reset

2018-03-01 Thread Mathias Nyman
On 01.03.2018 13:56, Greg KH wrote: On Thu, Mar 01, 2018 at 01:15:28PM +0200, Mathias Nyman wrote: Disabing Latency Tolerance Messaging before port reset is unnecessary. LTM is automatically disabled at port reset. If host can't communicate with the device the LTM message will fail, and the hub

Re: [PATCH] usb: Don't disable Latency tolerance Messaging (LTM) before port reset

2018-03-01 Thread Greg KH
On Thu, Mar 01, 2018 at 01:15:28PM +0200, Mathias Nyman wrote: > Disabing Latency Tolerance Messaging before port reset is unnecessary. > LTM is automatically disabled at port reset. > > If host can't communicate with the device the LTM message will fail, and > the hub driver will unnecessarily do

Re: [PATCH] usb: Don't disable Latency tolerance Messaging (LTM) before port reset

2018-03-01 Thread Sergei Shtylyov
Hello! On 03/01/2018 02:15 PM, Mathias Nyman wrote: > Disabing Latency Tolerance Messaging before port reset is unnecessary. > LTM is automatically disabled at port reset. > > If host can't communicate with the device the LTM message will fail, and > the hub driver will unnecessarily do a logica

[PATCH] usb: Don't disable Latency tolerance Messaging (LTM) before port reset

2018-03-01 Thread Mathias Nyman
Disabing Latency Tolerance Messaging before port reset is unnecessary. LTM is automatically disabled at port reset. If host can't communicate with the device the LTM message will fail, and the hub driver will unnecessarily do a logical disconnect. Broken communication is ofter the reason for a res