From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH RESEND net-next 13/15] smc: receive data from RMBE
Date: Fri, 02 Sep 2016 10:59:33 -0700 (PDT)
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From: Ursula Braun <ubraun@linux.vnet.ibm.com>
Date: Fri, 2 Sep 2016 15:05:01 +0200

> Understood, I wrongly used xchg() for atomicity. I now realize that I
> would need cursor locking for 32-bit architectures - something I would
> like to defer. Thus I would like to come up with V2 of SMC-R with
> builds restricted to 64-bit architectures only, and thus no usage of
> xchg() anymore.

Please don't restrict the driver build to 64-bit