linux-kernel - Re: [PATCH 1/2] i2c: Add message transfer tracepoints for I2C

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Date:	Thu, 27 Feb 2014 13:07:24 +0000
From:	David Howells <dhowells@...hat.com>
To:	Wolfram Sang <wsa@...-dreams.de>
Cc:	dhowells@...hat.com, wolfram@...-dreams.de, khali@...ux-fr.org,
	linux-i2c@...r.kernel.org, Steven Rostedt <rostedt@...dmis.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] i2c: Add message transfer tracepoints for I2C

Wolfram Sang <wsa@...-dreams.de> wrote:

> 'flags' are u16 and the whole range is needed -> %04x

Done.  Note that %02x does not preclude more digits, but I guess it's better
to have things line up.

> for the address simply %03x should do.

Done.

> And for the buffer: %*phN is difficult to read IMO. What about %*ph? Or
> %*phD at least?

My problem with that is that it increases the length of the output by 50% and
there's a hard limit on how much output we may produce.

David
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