RE: [PATCH 4.4 29/57] RDMA/uverbs: Check port number supplied by user verbs cmds

[Marciniszyn, Mike]

> Subject: Re: [PATCH 4.4 29/57] RDMA/uverbs: Check port number supplied
> by user verbs cmds
> 
> On Thu, Jul 13, 2017 at 03:54:28PM +0000, Ismail, Mustafa wrote:
> > > Subject: [PATCH 4.4 29/57] RDMA/uverbs: Check port number supplied
> by
> > > user verbs cmds
> > >
> > > 4.4-stable review patch.  If anyone has any objections, please let me
> know.
> >
> > Yes, this breaks modify qp.
> > See https://patchwork.kernel.org/patch/9830663/
> 
> I don't understand this response at all, sorry.
> 
> What should I do about this?  Is this patch alone a problem?  Is there
> some other patch I should apply that is in Linus's tree?  Where is the
> problem, only in this old release?
> 
> totally confused,
> 

This patch utterly breaks qib and hfi1 on at least 4.10.11 stable kernel.

I suspect and will soon verify that v4.13-rc1 is broke as well.

Mike