From: Haggai Eran <haggaie@mellanox.com>
Date: Thu, 11 Dec 2014 15:04:14 +0000 (+0200)
Subject: IB/mlx5: Add function to read WQE from user-space
X-Git-Tag: omap-for-v3.20/drop-legacy-3517~34^2^7~13
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c1395a2a8c01e8a919e47d64eb3d23d00e824b8b;p=pandora-kernel.git

IB/mlx5: Add function to read WQE from user-space

Add a helper function mlx5_ib_read_user_wqe to read information from
user-space owned work queues.  The function will be used in a later
patch by the page-fault handling code in mlx5_ib.

Signed-off-by: Haggai Eran <haggaie@mellanox.com>

[ Add stub for ib_umem_copy_from() for CONFIG_INFINIBAND_USER_MEM=n
  - Roland ]

Signed-off-by: Roland Dreier <roland@purestorage.com>
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