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Date:	Fri, 21 Mar 2014 00:48:14 +0000
From:	"Bollinger, Seth" <Seth.Bollinger@...i.com>
To:	Peter Hurley <peter@...leysoftware.com>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	linux-serial <linux-serial@...r.kernel.org>
Subject: Re: Possible software flow problem in serial_core


>Yeah, you're right; thanks for catching this.
>(I was busy looking at the ll driver and completely missed the bug in
>the serial core).
>
>uart_start() should not be conditioning the call to start_tx() on
>the ring buffer being empty; ll drivers should already be able to handle
>that because CTS flow control change will start_tx regardless of the ring
>buffer count.
>
>Will you send a patch?

Sure thing.  Just to be clear, you want to remove the ring buffer tests
and leave the tty tests, right?

This will have to wait for the morning though.  :)

Seth

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