Re: fs/ext4/inode.c::mpage_map_and_submit_extent - unused variable warning

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On Sun, Jul 07, 2013 at 11:54:55AM +0200, Stefan Richter wrote:
> Hi,
> 
> gcc 4.6.3 says:
> fs/ext4/inode.c: In function ‘ext4_writepages’:
> fs/ext4/inode.c:2219:6: warning: ‘err’ may be used uninitialized in this function [-Wuninitialized]
> fs/ext4/inode.c:2161:6: note: ‘err’ was declared here
> 
> It would be an actual bug if mpage_map_and_submit_extent(handle, mpd, ...)
> can be called with mpd->map.m_len == 0.  Can it?

It can't and we have a patch queued up to remove the warning.

Cheers,

					- Ted
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