linux-kernel - [PATCH 05/26] IB/ocrdma: Improve another size determination in ocrdma_mbx_query

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Date:   Wed, 8 Mar 2017 13:50:59 +0100
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     linux-rdma@...r.kernel.org,
        Devesh Sharma <devesh.sharma@...gotech.com>,
        Doug Ledford <dledford@...hat.com>,
        Hal Rosenstock <hal.rosenstock@...il.com>,
        Sean Hefty <sean.hefty@...el.com>,
        Selvin Xavier <selvin.xavier@...gotech.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH 05/26] IB/ocrdma: Improve another size determination in
 ocrdma_mbx_query_qp()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Tue, 7 Mar 2017 19:40:31 +0100

Replace the specification of a data structure by a pointer dereference
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 drivers/infiniband/hw/ocrdma/ocrdma_hw.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_hw.c b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c
index 517a18e9351a..8122a1c7d2ae 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_hw.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c
@@ -2487,7 +2487,7 @@ int ocrdma_mbx_query_qp(struct ocrdma_dev *dev, struct ocrdma_qp *qp,
 	if (status)
 		goto mbx_err;
 	rsp = (struct ocrdma_query_qp_rsp *)cmd;
-	memcpy(param, &rsp->params, sizeof(struct ocrdma_qp_params));
+	memcpy(param, &rsp->params, sizeof(*param));
 mbx_err:
 	kfree(cmd);
 	return status;
-- 
2.12.0