[xfs-masters] Re: linux-next: arm allmodconfig

[Ingo Molnar <mingo@xxxxxxx>]

* Dave Chinner <david@xxxxxxxxxxxxx> wrote:

> > > fs/xfs/xfs_rtalloc.c: In function `xfs_growfs_rt':
> > > fs/xfs/xfs_rtalloc.c:1875: warning: 'tp' might be used uninitialized in 
> > > this function
> 
> False positive, and I don't get this reported, either.
> 
> Hold on - the above gcc binary only emits a warning for the 
> xfs_growfs_rt issue when CONFIG_CC_OPTIMIZE_FOR_SIZE=y is set. It 
> still doesn't catch the quota bug, though. This is so fucked up....

FYI, i've got 3 XFS warnings mapped in tip/auto-warnings-next:

 earth4:~/tip> gll linus..auto-warnings-next | grep xfs

 ec2f37c: work around warning in fs/xfs/xfs_mount.c
 8501db3: work around warning in fs/xfs/xfs_rtalloc.c
 8077af8: warnings: fix xfs posix acl

you can find those commits in the auto-warnings-next branch of -tip:

  http://people.redhat.com/mingo/tip.git/README

the rtalloc annotation is below. I went through the flow and the code 
seems to be correct and GCC is wrong.

        Ingo

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