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Date:   Wed, 13 Feb 2019 13:26:23 -0800
From:   Matthew Wilcox <>
To:     Jason Gunthorpe <>
Cc:     Stephen Rothwell <>,
        Doug Ledford <>,
        Linux Next Mailing List <>,
        Linux Kernel Mailing List <>
Subject: Re: linux-next: build failure after merge of the xarray tree

On Tue, Feb 12, 2019 at 04:23:31PM +0000, Jason Gunthorpe wrote:
> On Tue, Feb 12, 2019 at 08:15:28AM -0800, Matthew Wilcox wrote:
> > Seriously, there are several defects in the published API which do
> > warrant a change.  The most severe one is that it's really easy to
> > forget to initialise the start index.  And while I'm making that change,
> > I should fix smaller things like the errno at the same time.
> I hope you will send your tree in the 2nd week of the merge window
> with all these merge fixes in it..
> I think Linus will not like it if he has to fix this when merging
> rdma.

Ahhahhahhah.  No.  Burned once.  Not doing that again.

> > @@ -750,7 +738,7 @@ int ib_register_device(struct ib_device *device, const char *name)
> >  	int ret;
> >  
> >  	ret = assign_name(device, name);
> > -	if (ret)
> > +	if (ret < 0)
> >  		return ret;
> This <0 should be near the xa_alloc_cyclic, I don't want the unusual
> '1' to propogate.. Far too likely that someone will forget about
> the special case.

Feel free to propose an alternate fix for sfr to put in his tree and we
can both include it as a proposed patch in our respective pull requests.

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