Subject: Re: [PATCH] mei: trace: Remove unused TRACE_SYSTEM_STRING define

From: Greg KH <[email-masked]>
Date: Mon, 13 Apr 2015 18:56:19 +0200

On Mon, Apr 13, 2015 at 12:07:27PM -0400, Steven Rostedt wrote:
> TRACE_SYSTEM_STRING is defined in mei-trace.h but is unused. Worse yet,
> the ftrace tracing infrastructure is using it now and this causes
> warnings about redefined macros.
> 
> Remove the define of TRACE_SYSTEM_STRING from mei-trace.h
> 
> Link: http://lkml.kernel.org/r/[email-masked]
> 
> Reported-by: Stephen Rothwell <[email-masked]>
> Signed-off-by: Steven Rostedt <[email-masked]>
> ---
> diff --git a/drivers/misc/mei/mei-trace.h b/drivers/misc/mei/mei-trace.h
> index 5f4e1a17360b..c9e24d2b698a 100644
> --- a/drivers/misc/mei/mei-trace.h
> +++ b/drivers/misc/mei/mei-trace.h
> @@ -26,7 +26,6 @@
>  #undef TRACE_SYSTEM
>  
>  #define TRACE_SYSTEM mei
> -#define TRACE_SYSTEM_STRING __stringify(TRACE_SYSTEM)
>  
>  TRACE_EVENT(mei_reg_read,
>  	TP_PROTO(const struct device *dev, const char *reg, u32 offs, u32 val),

This is already in my tree, and will show up in the next linux-next :)

thanks,

greg k-h