linux-kernel - Re: [RFC][PATCH 1/7] trace: fix the glob match in __unregister_ftrace_function

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Message-ID: <20150205223038.GV29656@ZenIV.linux.org.uk>
Date:	Thu, 5 Feb 2015 22:30:39 +0000
From:	Al Viro <viro@...IV.linux.org.uk>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [RFC][PATCH 1/7] trace: fix the glob match in
 __unregister_ftrace_function_probe()

On Thu, Feb 05, 2015 at 03:43:36PM -0500, Steven Rostedt wrote:
> Can you make search = NULL instead of glob at the start of the
> function. That is:
> 
> 	if (!glob || strcmp(glob, "*") == 0 || !strlen(glob))
> 		search = NULL;

Umm...  If we do it that way, I'd rather initialized search with NULL
and inverted the test:
	if (glob && *glob && strcmp(glob, "*") != 0) {
		parse it and set search
	}
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