From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Message-Id: <20120528031206.762344541@decadent.org.uk> Date: Mon, 28 May 2012 04:12:30 +0100 From: Ben Hutchings To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, Steve Wise , Roland Dreier Subject: [ 028/117] RDMA/cxgb4: Always wake up waiters in c4iw_peer_abort_intr() In-Reply-To: <20120528031202.829379252@decadent.org.uk> Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.2-stable review patch. If anyone has any objections, please let me know. ------------------ From: Steve Wise commit 0f1dcfae6bc5563424346ad3a03282b8235a4c33 upstream. This fixes a race where an ingress abort fails to wake up the thread blocked in rdma_init() causing the app to hang. Signed-off-by: Steve Wise Signed-off-by: Roland Dreier Signed-off-by: Ben Hutchings --- drivers/infiniband/hw/cxgb4/cm.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c index 86542cd..b770a044 100644 --- a/drivers/infiniband/hw/cxgb4/cm.c +++ b/drivers/infiniband/hw/cxgb4/cm.c @@ -2667,11 +2667,8 @@ static int peer_abort_intr(struct c4iw_dev *dev, struct sk_buff *skb) /* * Wake up any threads in rdma_init() or rdma_fini(). - * However, this is not needed if com state is just - * MPA_REQ_SENT */ - if (ep->com.state != MPA_REQ_SENT) - c4iw_wake_up(&ep->com.wr_wait, -ECONNRESET); + c4iw_wake_up(&ep->com.wr_wait, -ECONNRESET); sched(dev, skb); return 0; }