linux-kernel - Re: [PATCH 1/2] kernel: Use CALLER

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Message-ID: <4B2E751B.8050706@linux.intel.com>
Date:	Sun, 20 Dec 2009 20:03:55 +0100
From:	Andi Kleen <ak@...ux.intel.com>
To:	Thiago Farina <tfransosi@...il.com>
CC:	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...e.hu>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Arjan van de Ven <arjan@...ux.intel.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Yinghai Lu <yinghai@...nel.org>
Subject: Re: [PATCH 1/2] kernel: Use CALLER_ADDR0 macro.

Thiago Farina wrote:
> Use CALLER_ADDR0 instead of (unsigned long)__builtin_return_address(0),
> since this macro was created for this.
> 
> This patch was generated by:
> sed -i "s/(unsigned long)__builtin_return_address(0)/CALLER_ADDR0/g" path/to/file

The new macro looks more obfuscated than the old straight forward call.
I fail to see the improvement.

-Andi
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