linux-kernel - Re: [gcv v3 08/35] tracing: Replace __get_cpu

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Message-ID: <20130829172622.3b458a80@gandalf.local.home>
Date:	Thu, 29 Aug 2013 17:26:22 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Christoph Lameter <cl@...ux.com>
Cc:	Tejun Heo <tj@...nel.org>, akpm@...uxfoundation.org,
	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...hat.com>, linux-arch@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [gcv v3 08/35] tracing: Replace __get_cpu_var uses

On Wed, 28 Aug 2013 19:48:16 +0000

> Index: linux/kernel/trace/trace.c
> ===================================================================
> --- linux.orig/kernel/trace/trace.c	2013-08-26 14:25:53.000000000 -0500
> +++ linux/kernel/trace/trace.c	2013-08-26 14:26:29.464993617 -0500
> @@ -1676,7 +1676,7 @@ static void __ftrace_trace_stack(struct
>  	 */
>  	barrier();
>  	if (use_stack == 1) {
> -		trace.entries		= &__get_cpu_var(ftrace_stack).calls[0];
> +		trace.entries		= this_cpu_ptr(ftrace_stack.calls);
>  		trace.max_entries	= FTRACE_STACK_MAX_ENTRIES;
>  
>  		if (regs)


This patch fails to build:

kernel/trace/trace.c: In function ‘__ftrace_trace_stack’:
kernel/trace/trace.c:1679:20: error: cast specifies array type

-- Steve
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