linux-kernel - Re: [PATCH tty-next 7/7] n_tty: trace input/read flow control

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Message-ID: <20131124002513.0a806665@alan.etchedpixels.co.uk>
Date:	Sun, 24 Nov 2013 00:25:13 +0000
From:	One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk>
To:	Peter Hurley <peter@...leysoftware.com>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jiri Slaby <jslaby@...e.cz>, linux-kernel@...r.kernel.org,
	linux-serial@...r.kernel.org
Subject: Re: [PATCH tty-next 7/7] n_tty: trace input/read flow control

On Fri, 22 Nov 2013 10:59:25 -0500
Peter Hurley <peter@...leysoftware.com> wrote:

> Instrument .receive_buf() and read() paths with trace_printk's
> to aid in debugging flow control changes.

tty devices have a device, we have a dev_dbg() layer. The old tty trace
predates this but there isn't really any excuse for not using it now that
I can see ?

Alan
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