linux-kernel - Re: [PATCH] tracing: fix undeclared 'PAGE_SIZE' in include/linux/trace

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Date:	Sun, 14 Jun 2009 14:34:52 +0200
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	Wu Zhangjin <wuzhangjin@...il.com>
Cc:	linux-kernel@...r.kernel.org,
	Linux-MIPS <linux-mips@...ux-mips.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Ralf Baechle <ralf@...ux-mips.org>,
	Pekka Enberg <penberg@...helsinki.fi>,
	Wu Zhangjin <wuzj@...ote.com>, Ingo Molnar <mingo@...e.hu>
Subject: Re: [PATCH] tracing: fix undeclared 'PAGE_SIZE' in
	include/linux/trace_seq.h

On Sun, Jun 14, 2009 at 02:52:30PM +0800, Wu Zhangjin wrote:
> From: Wu Zhangjin <wuzj@...ote.com>
> 
> when compiling linux-mips with kmemtrace enabled, there will be an
> error:
> 
> include/linux/trace_seq.h:12: error: 'PAGE_SIZE' undeclared here (not in
> 				a function)
> 
> I checked the source code and found trace_seq.h used PAGE_SIZE but not
> included the relative header file, so, fix it via adding the header file
> <asm/page.h>
> 
> Acked-by: Pekka Enberg <penberg@...helsinki.fi>
> Signed-off-by: Wu Zhangjin <wuzj@...ote.com>


Acked-by: Frederic Weisbecker <fweisbec@...il.com>


> ---
>  include/linux/trace_seq.h |    2 ++
>  1 files changed, 2 insertions(+), 0 deletions(-)
> 
> diff --git a/include/linux/trace_seq.h b/include/linux/trace_seq.h
> index c68bccb..c134dd1 100644
> --- a/include/linux/trace_seq.h
> +++ b/include/linux/trace_seq.h
> @@ -3,6 +3,8 @@
>  
>  #include <linux/fs.h>
>  
> +#include <asm/page.h>
> +
>  /*
>   * Trace sequences are used to allow a function to call several other functions
>   * to create a string of data to use (up to a max of PAGE_SIZE.
> -- 
> 1.6.0.4
> 

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