Hello, Greg, all, I've just double-checked your backports, indeed, they are fine. Check for operations is not added for protocols which does not use these operations. Thanks! Best regards, Vladis Dronov | Red Hat, Inc. | The Core Kernel | Senior Software Engineer ----- Original Message ----- > From: "Greg KH" <greg@xxxxxxxxx> > To: "Vladis Dronov" <vdronov@xxxxxxxxxx> > Cc: "Sasha Levin" <sashal@xxxxxxxxxx>, "Marcel Holtmann" <marcel@xxxxxxxxxxxx>, torvalds@xxxxxxxxxxxxxxxxxxxx, > linux-kernel@xxxxxxxxxxxxxxx, linux-bluetooth@xxxxxxxxxxxxxxx, stable@xxxxxxxxxxxxxxx > Sent: Thursday, August 1, 2019 4:06:39 PM > Subject: Re: [PATCH v5.3-rc2] Bluetooth: hci_uart: check for missing tty operations > > On Thu, Aug 01, 2019 at 09:55:55AM -0400, Vladis Dronov wrote: > > Thank you, Greg! > > > > I've just noticed the patch landed in the upstream and was going to start > > stable > > backports, but it appeared you've already done this. > > Verifying that I got the 4.4.y and 4.9.y and 4.14.y backports done > properly would be good, as I took a guess at them :) > > thanks, > > greg k-h