IB/qib: Fix QP RCU sparse warnings
Commit af061a644a0e ("IB/qib: Use RCU for qpn lookup") introduced sparse
warnings.
This patch corrects those issues.
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
diff --git a/drivers/infiniband/hw/qib/qib_verbs.c b/drivers/infiniband/hw/qib/qib_verbs.c
index 59cdea3..03ace06 100644
--- a/drivers/infiniband/hw/qib/qib_verbs.c
+++ b/drivers/infiniband/hw/qib/qib_verbs.c
@@ -1,6 +1,6 @@
/*
- * Copyright (c) 2006, 2007, 2008, 2009, 2010 QLogic Corporation.
- * All rights reserved.
+ * Copyright (c) 2012 Intel Corporation. All rights reserved.
+ * Copyright (c) 2006 - 2012 QLogic Corporation. All rights reserved.
* Copyright (c) 2005, 2006 PathScale, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
@@ -1845,6 +1845,23 @@
return ret;
}
+struct ib_ah *qib_create_qp0_ah(struct qib_ibport *ibp, u16 dlid)
+{
+ struct ib_ah_attr attr;
+ struct ib_ah *ah = ERR_PTR(-EINVAL);
+ struct qib_qp *qp0;
+
+ memset(&attr, 0, sizeof attr);
+ attr.dlid = dlid;
+ attr.port_num = ppd_from_ibp(ibp)->port;
+ rcu_read_lock();
+ qp0 = rcu_dereference(ibp->qp0);
+ if (qp0)
+ ah = ib_create_ah(qp0->ibqp.pd, &attr);
+ rcu_read_unlock();
+ return ah;
+}
+
/**
* qib_destroy_ah - destroy an address handle
* @ibah: the AH to destroy
@@ -2060,7 +2077,7 @@
spin_lock_init(&dev->lk_table.lock);
dev->lk_table.max = 1 << ib_qib_lkey_table_size;
lk_tab_size = dev->lk_table.max * sizeof(*dev->lk_table.table);
- dev->lk_table.table = (struct qib_mregion **)
+ dev->lk_table.table = (struct qib_mregion __rcu **)
__get_free_pages(GFP_KERNEL, get_order(lk_tab_size));
if (dev->lk_table.table == NULL) {
ret = -ENOMEM;