On Thu, 4 Apr 2013, Theodore Ts'o wrote:

> Date: Thu, 4 Apr 2013 09:20:48 -0400
> From: Theodore Ts'o <tytso@mit.edu>
> To: Lukáš Czerner <lczerner@redhat.com>
> Cc: Stephen Rothwell <sfr@canb.auug.org.au>, linux-next@vger.kernel.org,
>     linux-kernel@vger.kernel.org
> Subject: Re: linux-next: build failure after merge of the ext4 tree
> 
> On Thu, Apr 04, 2013 at 03:18:32PM +0200, Lukáš Czerner wrote:
> > I am afraid I do not understand why this is happening. The commit
> > simply replaces ext4_get_group_no_and_offset() with
> > ext4_get_group_number() which has the similar definition in the same
> > header file. Maybe someone knows what this is all about ?
> 
> I've fixed this up already in the ext4 tree.  The problem is that you
> defined the function ext4_get_group_number() as "inline", but the
> function body was only in fs/ext4/balloc.c.  I have no idea why gcc
> wasn't complaining about this on x86, but the fix was to simply
> declare the function as "extern", not as "inline".
> 
> 						- Ted
> 

Ok, that's why I have not seen it in ext4 tree :). I do not know why
I did it, but it was obviously wrong.

Thanks for fixing it.
-Lukas