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Date:   Thu, 2 Nov 2017 08:44:03 -0400
From:   Brian Foster <bfoster@redhat.com>
To:     Arnd Bergmann <arnd@arndb.de>
Cc:     "Darrick J. Wong" <darrick.wong@oracle.com>,
        linux-xfs@vger.kernel.org, Dave Chinner <dchinner@redhat.com>,
        Eric Sandeen <sandeen@redhat.com>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/2] xfs: fix unused variable warnings
Message-ID: <20171102124403.GC16645@bfoster.bfoster>
References: <20171102111137.3062126-1-arnd@arndb.de>
 <20171102111137.3062126-2-arnd@arndb.de>
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On Thu, Nov 02, 2017 at 12:11:13PM +0100, Arnd Bergmann wrote:
> fs/xfs/libxfs/xfs_bmap.c: In function 'xfs_bmap_del_extent_delay':
> fs/xfs/libxfs/xfs_bmap.c:4648:20: error: unused variable 'ifp' [-Werror=unused-variable]
>   struct xfs_ifork *ifp = XFS_IFORK_PTR(ip, whichfork);
>                     ^~~
> fs/xfs/libxfs/xfs_bmap.c: In function 'xfs_bmap_del_extent_cow':
> fs/xfs/libxfs/xfs_bmap.c:4776:20: error: unused variable 'ifp' [-Werror=unused-variable]
> 
> Fixes: ca5d8e5b7b90 ("xfs: move pre/post-bmap tracing into xfs_iext_update_extent")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---

Thanks for sending this:

Reviewed-by: Brian Foster <bfoster@redhat.com>

>  fs/xfs/libxfs/xfs_bmap.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
> index f45f05c45e15..fa85b08b8fe2 100644
> --- a/fs/xfs/libxfs/xfs_bmap.c
> +++ b/fs/xfs/libxfs/xfs_bmap.c
> @@ -4645,7 +4645,6 @@ xfs_bmap_del_extent_delay(
>  	struct xfs_bmbt_irec	*del)
>  {
>  	struct xfs_mount	*mp = ip->i_mount;
> -	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, whichfork);
>  	struct xfs_bmbt_irec	new;
>  	int64_t			da_old, da_new, da_diff = 0;
>  	xfs_fileoff_t		del_endoff, got_endoff;
> @@ -4663,7 +4662,7 @@ xfs_bmap_del_extent_delay(
>  	da_new = 0;
>  
>  	ASSERT(*idx >= 0);
> -	ASSERT(*idx <= xfs_iext_count(ifp));
> +	ASSERT(*idx <= xfs_iext_count(XFS_IFORK_PTR(ip, whichfork)));
>  	ASSERT(del->br_blockcount > 0);
>  	ASSERT(got->br_startoff <= del->br_startoff);
>  	ASSERT(got_endoff >= del_endoff);
> @@ -4773,7 +4772,6 @@ xfs_bmap_del_extent_cow(
>  	struct xfs_bmbt_irec	*del)
>  {
>  	struct xfs_mount	*mp = ip->i_mount;
> -	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, XFS_COW_FORK);
>  	struct xfs_bmbt_irec	new;
>  	xfs_fileoff_t		del_endoff, got_endoff;
>  	int			state = BMAP_COWFORK;
> @@ -4784,7 +4782,7 @@ xfs_bmap_del_extent_cow(
>  	got_endoff = got->br_startoff + got->br_blockcount;
>  
>  	ASSERT(*idx >= 0);
> -	ASSERT(*idx <= xfs_iext_count(ifp));
> +	ASSERT(*idx <= xfs_iext_count(XFS_IFORK_PTR(ip, XFS_COW_FORK)));
>  	ASSERT(del->br_blockcount > 0);
>  	ASSERT(got->br_startoff <= del->br_startoff);
>  	ASSERT(got_endoff >= del_endoff);
> -- 
> 2.9.0
> 
> --
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