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Groups > linux.kernel > #1594818 > unrolled thread

linux-next: build warnings after merge of the overlayfs tree

Started byStephen Rothwell <sfr@canb.auug.org.au>
First post2017-03-08 04:20 +0100
Last post2017-03-08 09:50 +0100
Articles 2 — 2 participants

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  linux-next: build warnings after merge of the overlayfs tree Stephen Rothwell <sfr@canb.auug.org.au> - 2017-03-08 04:20 +0100
    Re: linux-next: build warnings after merge of the overlayfs tree Amir Goldstein <amir73il@gmail.com> - 2017-03-08 09:50 +0100

#1594818 — linux-next: build warnings after merge of the overlayfs tree

FromStephen Rothwell <sfr@canb.auug.org.au>
Date2017-03-08 04:20 +0100
Subjectlinux-next: build warnings after merge of the overlayfs tree
Message-ID<tiAiR-uG-1@gated-at.bofh.it>
Hi Miklos,

After merging the overlayfs tree, today's linux-next build (powerpc
ppc64_defconfig) produced these warnings:

fs/overlayfs/inode.c:322:30: warning: 'ovl_i_mutex_key' defined but not used [-Wunused-variable]
 static struct lock_class_key ovl_i_mutex_key[FILESYSTEM_MAX_STACK_DEPTH];
                              ^
fs/overlayfs/inode.c:323:30: warning: 'ovl_i_mutex_dir_key' defined but not used [-Wunused-variable]
 static struct lock_class_key ovl_i_mutex_dir_key[FILESYSTEM_MAX_STACK_DEPTH];
                              ^

Introduced by commit

  a41471e8eff8 ("ovl: lockdep annotate of nested stacked overlayfs inode lock")

CONFIG_LOCKDEP is not set for this build.

-- 
Cheers,
Stephen Rothwell

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#1594949

FromAmir Goldstein <amir73il@gmail.com>
Date2017-03-08 09:50 +0100
Message-ID<tiFsf-3Rn-33@gated-at.bofh.it>
In reply to#1594818
On Wed, Mar 8, 2017 at 1:16 AM, Stephen Rothwell <sfr@canb.auug.org.au> wrote:
> Hi Miklos,
>
> After merging the overlayfs tree, today's linux-next build (powerpc
> ppc64_defconfig) produced these warnings:
>
> fs/overlayfs/inode.c:322:30: warning: 'ovl_i_mutex_key' defined but not used [-Wunused-variable]
>  static struct lock_class_key ovl_i_mutex_key[FILESYSTEM_MAX_STACK_DEPTH];
>                               ^
> fs/overlayfs/inode.c:323:30: warning: 'ovl_i_mutex_dir_key' defined but not used [-Wunused-variable]
>  static struct lock_class_key ovl_i_mutex_dir_key[FILESYSTEM_MAX_STACK_DEPTH];
>                               ^
>
> Introduced by commit
>
>   a41471e8eff8 ("ovl: lockdep annotate of nested stacked overlayfs inode lock")
>
> CONFIG_LOCKDEP is not set for this build.
>

Thanks Stephen!

Miklos, I posted v5 of the patch with a fix.

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