Re: USB disk speed regression WD Elements - with bisect result 22547c4cc4fe20698a6a85a55b8788859134b8e4

2017-07-28 Thread Alan Stern
On Fri, 28 Jul 2017, Zdenek Kabelac wrote: > Dne 28.7.2017 v 20:33 Alan Stern napsal(a): > > On Thu, 27 Jul 2017, Zdenek Kabelac wrote: > > > >>> Zdenek, you check this explanation by commenting out these last two > >>> lines at the end of hub_port_connect() in drivers/usb/core/hub.c: > >>> >

Re: USB disk speed regression WD Elements - with bisect result 22547c4cc4fe20698a6a85a55b8788859134b8e4

2017-07-28 Thread Alan Stern
On Thu, 27 Jul 2017, Zdenek Kabelac wrote: > > Zdenek, you check this explanation by commenting out these last two > > lines at the end of hub_port_connect() in drivers/usb/core/hub.c: > > > > if (hcd->driver->relinquish_port && !hub->hdev->parent) > >

Re: USB disk speed regression WD Elements - with bisect result 22547c4cc4fe20698a6a85a55b8788859134b8e4

2017-07-27 Thread Zdenek Kabelac
Dne 27.7.2017 v 03:03 Alan Stern napsal(a): [Added linux-usb mailing list to CC:] Short description of bug: In 4.12 or later, when Zdenek's Western Digital disk is attached to an EHCI controller, it ends up connecting at full speed to the companion UHCI controller instead. But when commit

Re: USB disk speed regression WD Elements - with bisect result 22547c4cc4fe20698a6a85a55b8788859134b8e4

2017-07-26 Thread Alan Stern
[Added linux-usb mailing list to CC:] Short description of bug: In 4.12 or later, when Zdenek's Western Digital disk is attached to an EHCI controller, it ends up connecting at full speed to the companion UHCI controller instead. But when commit 22547c4cc4fe ("usb: hub: Wait for connection to be