linux-kernel - Re: [PATCH v22] edac, ras/hw_event.h: use events to handle hw issues

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Date:	Wed, 16 May 2012 13:05:13 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Mauro Carvalho Chehab <mchehab@...hat.com>
Cc:	Borislav Petkov <bp@...64.org>, "Luck, Tony" <tony.luck@...el.com>,
	Linux Edac Mailing List <linux-edac@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Doug Thompson <norsk5@...oo.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...hat.com>
Subject: Re: [PATCH v22] edac, ras/hw_event.h: use events to handle hw issues

On Wed, 2012-05-16 at 12:24 -0300, Mauro Carvalho Chehab wrote:

> > Here's another trick if you want to get rid of the space and keep both
> > fields:
> > 
> > TP_printk("%s error:%s on memory stick \"%s\" (mc:%d %s %s%s%s)",
> >            (__entry->err_type == HW_EVENT_ERR_CORRECTED) ? "Corrected" :
> >                  ((__entry->err_type == HW_EVENT_ERR_FATAL) ?
> >                  "Fatal" : "Uncorrected"),
> > 
> >            __get_str(msg),
> >            __get_str(label),
> >            __entry->mc_index,
> >            __get_str(location),
> >            __get_str(detail),
> > 	   strlen(__get_str(detail)) &&
> > 	    strlen(__get_str(driver_detail) ? " ": "",
> >            __get_str(driver_detail))
> 
> Great! I'll use that trick, thanks!

strlen() may be too overblown. The following should work and is more
efficient:

	(((char *)__get_str(detail))[0] &&
	 ((char *)__get_str(driver_detail))[0]) ? " " : "",

-- Steve


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