linux-kernel - Re: [RFC] New kernel-message logging API

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Message-ID: <20070925045808.12273.qmail@science.horizon.com>
Date:	25 Sep 2007 00:58:08 -0400
From:	linux@...izon.com
To:	vegard.nossum@...izon.com
Cc:	linux@...izon.com, linux-kernel@...r.kernel.org
Subject: Re: [RFC] New kernel-message logging API

> I don't know. Compare the following two lines:
> 
> printk(KERN_INFO "Message.\n");
> kprint_info("Message.");
> 
> By dropping the lengthy macro (it's not like it's going to change
> while we're running anyway, so why not make it a part of the function
> name?) and the final newline, we actually end up with a net decrease
> in line length.

Agreed.  In fact, you may want to write a header that implements the
kprint_ functions in terms of printk for out-of-core driver writers to
incorporate into their code bases, so they can  upgrade their API while
maintaining backward compatibility.  (If it were me, I'd also give it
a very permissive license, like outright public domain, to encourage use.)

> I thought it would be nice to have something that looks familiar,
> since that would ease an eventual transition. klog is a valid
> alternative, but isn't kp a bit cryptic?

Well, in context:
	kp_info("Message.");

Even the "kp_" prefix is actually pretty unnecessary.  It's "info"
and a human-readable string that make it recognizable as a log message.

Another reason to keep it short is just that it's going to get typed a LOT.

Anyway, just MHO.
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