netdev - Re: [PATCH] net/smc: mark as BROKEN due to remote memory exposure

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Message-Id: <20170516.145249.871010194359061722.davem@davemloft.net>
Date:   Tue, 16 May 2017 14:52:49 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     dledford@...hat.com
Cc:     Bart.VanAssche@...disk.com, torvalds@...ux-foundation.org,
        hch@....de, netdev@...r.kernel.org, linux-rdma@...r.kernel.org,
        stable@...r.kernel.org, ubraun@...ux.vnet.ibm.com
Subject: Re: [PATCH] net/smc: mark as BROKEN due to remote memory exposure

From: Doug Ledford <dledford@...hat.com>
Date: Tue, 16 May 2017 14:03:22 -0400

> On Tue, 2017-05-16 at 13:36 -0400, David Miller wrote:
>> From: Doug Ledford <dledford@...hat.com>
>> Date: Tue, 16 May 2017 13:20:44 -0400
>> 
>> > Anyway, we're just talking out what happened, when what we really
>> need
>> > to focus on is moving forward.  Again, your thoughts on marking SMC
>> > EXPERIMENTAL until it's fixed up and unfreezing the API in case we
>> need
>> > to adjust it to work on different link layers?
>> 
>> Something like:
>> 
>>         http://patchwork.ozlabs.org/patch/762803/
>> 
>> with the addition of the EXPERIMENTAL dependency?
>> 
>> Sure.
> 
> Perfect.  I assume you'll submit it since it's in your patchworks?

Ok I applied the patch referenced above, but we don't actually have
an EXPERIMENTAL symbol.  The closest thing we have is BROKEN and
even in this situation that's a bit harsh.

I also applied the patch which converts SMC over to using
IB_PD_UNSAFE_GLOBAL_RKEY.