linux-kernel - Re: [PATCH 4/7] tracing/function: Introduce persistent trace option

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Message-ID: <20120709234457.GA25140@lizard>
Date:	Mon, 9 Jul 2012 16:44:58 -0700
From:	Anton Vorontsov <anton.vorontsov@...aro.org>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Kees Cook <keescook@...omium.org>,
	Colin Cross <ccross@...roid.com>,
	Tony Luck <tony.luck@...el.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...hat.com>, Arnd Bergmann <arnd@...db.de>,
	John Stultz <john.stultz@...aro.org>,
	Shuah Khan <shuahkhan@...il.com>, arve@...roid.com,
	Rebecca Schultz Zavin <rebecca@...roid.com>,
	Jesper Juhl <jj@...osbits.net>,
	Randy Dunlap <rdunlap@...otime.net>,
	Stephen Boyd <sboyd@...eaurora.org>,
	Thomas Meyer <thomas@...3r.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Marco Stornelli <marco.stornelli@...il.com>,
	WANG Cong <xiyou.wangcong@...il.com>,
	linux-kernel@...r.kernel.org, devel@...verdev.osuosl.org,
	linaro-kernel@...ts.linaro.org, patches@...aro.org,
	kernel-team@...roid.com
Subject: Re: [PATCH 4/7] tracing/function: Introduce persistent trace option

On Wed, Jun 27, 2012 at 08:40:12AM -0400, Steven Rostedt wrote:
> On Tue, 2012-06-26 at 16:23 -0700, Anton Vorontsov wrote:
> > @@ -219,6 +232,8 @@ static int func_set_flag(u32 old_flags, u32 bit, int set)
> >  
> >  		return 0;
> >  	}
> > +	if (bit == TRACE_FUNC_OPT_PSTORE)
> > +		return 0;
> 
> Perhaps this should be a switch() statement, or at least put a
>  } else if () {
> 
> As it can't be bit == TRACE_FUNC_OPT_STACK and bit ==
> TRACE_FUNC_OPT_PSTORE.

Yup, thanks for the idea. I'll start using 'else if' at first, and then
will convert it to a switch statement via a separate patch, that way I'll
not clobber the functional patch with cosmetic changes.

Thanks,

-- 
Anton Vorontsov
Email: cbouatmailru@...il.com
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