[PATCH] xfs: fix xfs_debug warnings

Err, the subject should have been:

[PATCH] xfs: fix xfs_debug warnings

On Sat, Apr 02, 2011 at 02:13:40PM -0400, Christoph Hellwig wrote:
> For a CONFIG_XFS_DEBUG=n build gcc complains about statements with no
> effect in xfs_debug:
> 
> fs/xfs/quota/xfs_qm_syscalls.c: In function 'xfs_qm_scall_trunc_qfiles':
> fs/xfs/quota/xfs_qm_syscalls.c:291:3: warning: statement with no effect
> 
> The reason for that is that the various new xfs message functions have a
> return value which is never used, and in case of the non-debug build
> xfs_debug the macro evaluates to a plain 0 which produces the above
> warnings.  This can be fixed by turning xfs_debug into an inline function
> instead of a macro, but in addition to that I've also changed all the
> message helpers to return void as we never use their return values.
> 
> Signed-off-by: Christoph Hellwig <hch <at> lst.de>
> 
> Index: linux-2.6/fs/xfs/linux-2.6/xfs_message.c
> ===================================================================
> --- linux-2.6.orig/fs/xfs/linux-2.6/xfs_message.c	2011-04-02 07:29:33.619237021 -0700
> +++ linux-2.6/fs/xfs/linux-2.6/xfs_message.c	2011-04-02 07:33:02.383304718 -0700
>  <at>  <at>  -28,53 +28,47  <at>  <at> 
>  /*
>   * XFS logging functions
>   */
> -static int
> +static void