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From: Leon Romanovsky <leon-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Leon Romanovsky <leon-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
	Dennis Dalessandro
	<dennis.dalessandro-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
	Jason Gunthorpe
	<jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>,
	Leon Romanovsky <leonro-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Subject: [rdma-next 1/8] RDMA/mlx4: Properly annotate link layer variable
Date: Tue, 15 Aug 2017 12:14:24 +0300	[thread overview]
Message-ID: <20170815091431.12822-2-leon@kernel.org> (raw)
In-Reply-To: <20170815091431.12822-1-leon-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>

From: Leon Romanovsky <leonro-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>

The rdma_port_get_link_layer() returns enum rdma_link_layer as
a return value, hence it is better to store the return value in
specially annotated variable and not in int.

Signed-off-by: Leon Romanovsky <leonro-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
---
 drivers/infiniband/hw/mlx4/qp.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
index 2874d8790570..8c6ccc392d87 100644
--- a/drivers/infiniband/hw/mlx4/qp.c
+++ b/drivers/infiniband/hw/mlx4/qp.c
@@ -2732,19 +2732,17 @@ enum {
 static int _mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
 			      int attr_mask, struct ib_udata *udata)
 {
+	enum rdma_link_layer ll = IB_LINK_LAYER_UNSPECIFIED;
 	struct mlx4_ib_dev *dev = to_mdev(ibqp->device);
 	struct mlx4_ib_qp *qp = to_mqp(ibqp);
 	enum ib_qp_state cur_state, new_state;
 	int err = -EINVAL;
-	int ll;
 	mutex_lock(&qp->mutex);
 
 	cur_state = attr_mask & IB_QP_CUR_STATE ? attr->cur_qp_state : qp->state;
 	new_state = attr_mask & IB_QP_STATE ? attr->qp_state : cur_state;
 
-	if (cur_state == new_state && cur_state == IB_QPS_RESET) {
-		ll = IB_LINK_LAYER_UNSPECIFIED;
-	} else {
+	if (cur_state != new_state || cur_state != IB_QPS_RESET) {
 		int port = attr_mask & IB_QP_PORT ? attr->port_num : qp->port;
 		ll = rdma_port_get_link_layer(&dev->ib_dev, port);
 	}
-- 
2.14.0

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  parent reply	other threads:[~2017-08-15  9:14 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-15  9:14 [pull request][rdma-next 0/8] Export device and port properties Leon Romanovsky
     [not found] ` <20170815091431.12822-1-leon-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2017-08-15  9:14   ` Leon Romanovsky [this message]
2017-08-15  9:14   ` [rdma-next 2/8] RDMA/core: Export device capabilities flags Leon Romanovsky
2017-08-15  9:14   ` [rdma-next 3/8] RDMA/core: Provide node type flags Leon Romanovsky
2017-08-15  9:14   ` [rdma-next 4/8] RDMA/core: Move port capabilities to UAPI Leon Romanovsky
2017-08-15  9:14   ` [rdma-next 5/8] RDMA/core: Move port state to UAPI and rename it to be link Leon Romanovsky
2017-08-15  9:14   ` [rdma-next 6/8] RDMA/core: Add physical link state information to the UAPI Leon Romanovsky
2017-08-15  9:14   ` [rdma-next 7/8] RDMA/nes: Remove zeroed parameter from port query callback Leon Romanovsky
2017-08-15  9:14   ` [rdma-next 8/8] RDMA: Use defines instead of hard coded value for phys_state Leon Romanovsky
     [not found]     ` <20170815091431.12822-9-leon-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2017-08-23 14:59       ` Boyer, Andrew
     [not found]         ` <D5C31047.1DB0A%Andrew.Boyer-mb1K0bWo544@public.gmane.org>
2017-08-23 15:29           ` Leon Romanovsky
     [not found]             ` <20170823152915.GQ1724-U/DQcQFIOTAAJjI8aNfphQ@public.gmane.org>
2017-08-24 12:56               ` Boyer, Andrew
     [not found]                 ` <D5C444A5.1DC28%Andrew.Boyer-mb1K0bWo544@public.gmane.org>
2017-08-24 13:24                   ` Leon Romanovsky
2017-08-23 16:27   ` [pull request][rdma-next 0/8] Export device and port properties Leon Romanovsky
     [not found]     ` <20170823162718.GS1724-U/DQcQFIOTAAJjI8aNfphQ@public.gmane.org>
2017-08-24 20:07       ` Doug Ledford

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