From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Mon, 7 May 2012 15:10:52 +0000 (-0400)
Subject: rculfhash: use do {} while (0) for dbg_printf()
X-Git-Tag: v0.7.0~19
X-Git-Url: http://git.lttng.org./?a=commitdiff_plain;h=87fbf522618013b675cfd10863630506ad882ef7;hp=87fbf522618013b675cfd10863630506ad882ef7;p=urcu.git

rculfhash: use do {} while (0) for dbg_printf()

found by clang(make CC=clang).

avoid empty statement.
-------------------------
if (condition)
        dbg_printf()  /* forget ";", but compiler say nothing if dbg_printf() is empty */
statement;
-------------------------

also add printf format check.
(we can use gcc extention "__printf(1, 2)" to declare a dummy inline function
to do the check, but I use "printf()" directly here)

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
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