linux-ext4 - New compiler warning in 2.6.34-rc1: 'start_ext.ee

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Message-ID: <4B9E475F.1010302@s5r6.in-berlin.de>
Date:	Mon, 15 Mar 2010 15:42:39 +0100
From:	Stefan Richter <stefanr@...6.in-berlin.de>
To:	"Theodore Ts'o" <tytso@....edu>,
	Akira Fujita <a-fujita@...jp.nec.com>
CC:	linux-ext4@...r.kernel.org
Subject: New compiler warning in 2.6.34-rc1: 'start_ext.ee_block' may be used
 uninitialized

Hi,

I saw the following scroll by during kernel compilation:

fs/ext4/move_extent.c: In function 'mext_leaf_block':

fs/ext4/move_extent.c:478: warning: 'start_ext.ee_block' may be used
uninitialized in this function


Is it real?  It seems that the initial start_ext.ee_len = 0 guards
against accidental use of an uninitialized start_ext.ee_block, but maybe
I missed something.

The message is from gcc (Gentoo 4.3.4 p1.0, pie-10.1.5) 4.3.4 here.
-- 
Stefan Richter
-=====-==-=- --== -====
http://arcgraph.de/sr/
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