linux-kernel - Re: linux-next: build warninga in Linus' tree

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Message-ID: <BANLkTim-0xj7Pr2EkZs2JEkyVw_7F9eM=g@mail.gmail.com>
Date:	Fri, 3 Jun 2011 14:25:34 +0200
From:	Sedat Dilek <sedat.dilek@...glemail.com>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
Cc:	Chris Mason <chris.mason@...cle.com>, linux-next@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-btrfs@...r.kernel.org
Subject: Re: linux-next: build warninga in Linus' tree

On Mon, May 30, 2011 at 3:36 AM, Stephen Rothwell <sfr@...b.auug.org.au> wrote:
> Hi all,
>
> After merging the Linus' tree, today's linux-next build (powerpc
> ppc64_defconfig) produced these warnings:
>
> fs/btrfs/sysfs.c:76:26: warning: 'btrfs_root_attrs' defined but not used
> fs/btrfs/sysfs.c:97:26: warning: 'btrfs_super_attrs' defined but not used
> fs/btrfs/sysfs.c:153:13: warning: 'btrfs_super_release' defined but not used
> fs/btrfs/sysfs.c:160:13: warning: 'btrfs_root_release' defined but not used
>
> I have started using gcc v4.5.2 (instead of v4.4.4) if that makes a
> difference.

I see the same warnings with Debian's gcc-4.6 (here: next-20110603),
plus some more:

fs/btrfs/ioctl.c: In function 'btrfs_ioctl_fs_info.isra.24':
fs/btrfs/ioctl.c:2080:1: warning: the frame size of 1032 bytes is
larger than 1024 bytes [-Wframe-larger-than=]

fs/btrfs/delayed-inode.c: In function 'btrfs_batch_insert_items':
fs/btrfs/delayed-inode.c:690:9: warning: 'nitems' may be used
uninitialized in this function [-Wuninitialized]

- Sedat -

> --
> Cheers,
> Stephen Rothwell                    sfr@...b.auug.org.au
> http://www.canb.auug.org.au/~sfr/
>
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