linux-kernel - Re: [PATCH v2] ftrace/x86: Load ftrace_ops in parameter not the variable holding it

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Message-ID: <5283E9D9.5070006@linux.intel.com>
Date:	Wed, 13 Nov 2013 13:06:33 -0800
From:	"H. Peter Anvin" <hpa@...ux.intel.com>
To:	Steven Rostedt <rostedt@...dmis.org>,
	LKML <linux-kernel@...r.kernel.org>
CC:	Ingo Molnar <mingo@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH v2] ftrace/x86: Load ftrace_ops in parameter not the variable
 holding it

On 11/13/2013 12:20 PM, Steven Rostedt wrote:
> 
> Function tracing callbacks expect to have the ftrace_ops that registered it
> passed to them, not the address of the variable that holds the ftrace_ops
> that registered it.
> 
> Use a mov instead of a lea to store the ftrace_ops into the parameter
> of the function tracing callback.
> 
> Signed-off-by: Steven Rostedt <rostedt@...dmis.org>

This looks like an urgent fix, am I correct?

	-hpa


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