Re: [PATCH] RDMA/ucma: Allow resolving address without specifying source address

On Thu, 2018-04-19 at 08:28 -0700, Roland Dreier wrote:

From: Roland Dreier roland@purestorage.com

The RDMA CM will select a source device and address by consulting the routing table if no source address is passed into rdma_resolve_address(). Userspace will ask for this by passing an all-zero source address in the RESOLVE_IP command. Unfortunately the new check for non-zero address size rejects this with EINVAL, which breaks valid userspace applications.

Fix this by explicitly allowing a zero address family for the source.

Fixes: 2975d5de6428 ("RDMA/ucma: Check AF family prior resolving address") Cc: stable@vger.kernel.org Signed-off-by: Roland Dreier roland@purestorage.com

Thanks, applied to for-rc.