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Groups > linux.kernel > #1643695 > unrolled thread

linux-next: build warning after merge of the btrfs-kdave tree

Started byStephen Rothwell <sfr@canb.auug.org.au>
First post2017-05-18 01:50 +0200
Last post2017-05-25 03:40 +0200
Articles 3 — 2 participants

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  linux-next: build warning after merge of the btrfs-kdave tree Stephen Rothwell <sfr@canb.auug.org.au> - 2017-05-18 01:50 +0200
    Re: linux-next: build warning after merge of the btrfs-kdave tree David Sterba <dsterba@suse.cz> - 2017-05-18 15:00 +0200
      Re: linux-next: build warning after merge of the btrfs-kdave tree Stephen Rothwell <sfr@canb.auug.org.au> - 2017-05-25 03:40 +0200

#1643695 — linux-next: build warning after merge of the btrfs-kdave tree

FromStephen Rothwell <sfr@canb.auug.org.au>
Date2017-05-18 01:50 +0200
Subjectlinux-next: build warning after merge of the btrfs-kdave tree
Message-ID<tIgRz-1ml-1@gated-at.bofh.it>
Hi David,

After merging the btrfs-kdave tree, today's linux-next build (powerpc
ppc64_defconfig) produced this warning:

fs/btrfs/inode.c: In function 'btrfs_submit_direct':
fs/btrfs/inode.c:8467:14: warning: 'bio' may be used uninitialized in this function [-Wmaybe-uninitialized]
  struct bio *bio;
              ^

I can't tell if it is a false positive or not.

-- 
Cheers,
Stephen Rothwell

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#1644458

FromDavid Sterba <dsterba@suse.cz>
Date2017-05-18 15:00 +0200
Message-ID<tItc6-2GL-21@gated-at.bofh.it>
In reply to#1643695
On Thu, May 18, 2017 at 09:41:46AM +1000, Stephen Rothwell wrote:
> Hi David,
> 
> After merging the btrfs-kdave tree, today's linux-next build (powerpc
> ppc64_defconfig) produced this warning:
> 
> fs/btrfs/inode.c: In function 'btrfs_submit_direct':
> fs/btrfs/inode.c:8467:14: warning: 'bio' may be used uninitialized in this function [-Wmaybe-uninitialized]
>   struct bio *bio;
>               ^
> 
> I can't tell if it is a false positive or not.

It seems to be a false positive. Patch updated and will be part of the
next for-next.

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#1650106

FromStephen Rothwell <sfr@canb.auug.org.au>
Date2017-05-25 03:40 +0200
Message-ID<tKPUR-1xw-9@gated-at.bofh.it>
In reply to#1644458
Hi David,

On Thu, 18 May 2017 14:50:00 +0200 David Sterba <dsterba@suse.cz> wrote:
>
> On Thu, May 18, 2017 at 09:41:46AM +1000, Stephen Rothwell wrote:
> > Hi David,
> > 
> > After merging the btrfs-kdave tree, today's linux-next build (powerpc
> > ppc64_defconfig) produced this warning:
> > 
> > fs/btrfs/inode.c: In function 'btrfs_submit_direct':
> > fs/btrfs/inode.c:8467:14: warning: 'bio' may be used uninitialized in this function [-Wmaybe-uninitialized]
> >   struct bio *bio;
> >               ^
> > 
> > I can't tell if it is a false positive or not.  
> 
> It seems to be a false positive. Patch updated and will be part of the
> next for-next.

I am still getting this.  Just checking that you didn't forget to push.

-- 
Cheers,
Stephen Rothwell

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