From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jason Gunthorpe , Doug Ledford Subject: [PATCH 4.1 108/123] IB/ipoib: Fix CONFIG_INFINIBAND_IPOIB_CM Date: Sat, 8 Aug 2015 15:09:46 -0700 Message-Id: <20150808220721.418142601@linuxfoundation.org> In-Reply-To: <20150808220717.771230091@linuxfoundation.org> References: <20150808220717.771230091@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: 4.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jason Gunthorpe commit efc1eedbf63a194b3b576fc25776f3f1fa55a4d4 upstream. If the above is turned off then ipoib_cm_dev_init unconditionally returns ENOSYS, and the newly added error handling in 0b3957 prevents ipoib from coming up at all: kernel: mlx4_0: ipoib_transport_dev_init failed kernel: mlx4_0: failed to initialize port 1 (ret = -12) Fixes: 0b39578bcde4 (IB/ipoib: Use dedicated workqueues per interface) Signed-off-by: Jason Gunthorpe Signed-off-by: Doug Ledford Signed-off-by: Greg Kroah-Hartman --- drivers/infiniband/ulp/ipoib/ipoib_verbs.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/infiniband/ulp/ipoib/ipoib_verbs.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_verbs.c @@ -176,7 +176,8 @@ int ipoib_transport_dev_init(struct net_ else size += ipoib_recvq_size * ipoib_max_conn_qp; } else - goto out_free_wq; + if (ret != -ENOSYS) + goto out_free_wq; priv->recv_cq = ib_create_cq(priv->ca, ipoib_ib_completion, NULL, dev, size, 0); if (IS_ERR(priv->recv_cq)) {