linux-kernel - [PATCH] staging/rdma/hfi1: use RCU_INIT

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Message-Id: <1462106131-9073-1-git-send-email-falakreyaz@gmail.com>
Date:	Sun,  1 May 2016 18:05:31 +0530
From:	Muhammad Falak R Wani <falakreyaz@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	Mike Marciniszyn <infinipath@...el.com>,
	Doug Ledford <dledford@...hat.com>,
	Sean Hefty <sean.hefty@...el.com>,
	Hal Rosenstock <hal.rosenstock@...il.com>,
	linux-rdma@...r.kernel.org, devel@...verdev.osuosl.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] staging/rdma/hfi1: use RCU_INIT_POINTER() when NULLing.

It is safe to use RCU_INIT_POINTER() to NULL a pointer, instead of
rcu_assign_pointer().
This results in slightly smaller/faster code.

Signed-off-by: Muhammad Falak R Wani <falakreyaz@...il.com>
---
 drivers/staging/rdma/hfi1/init.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/rdma/hfi1/init.c b/drivers/staging/rdma/hfi1/init.c
index cfcdc16..34e0f90 100644
--- a/drivers/staging/rdma/hfi1/init.c
+++ b/drivers/staging/rdma/hfi1/init.c
@@ -1303,7 +1303,7 @@ static void cleanup_device_data(struct hfi1_devdata *dd)
 
 		spin_lock(&ppd->cc_state_lock);
 		cc_state = get_cc_state(ppd);
-		rcu_assign_pointer(ppd->cc_state, NULL);
+		RCU_INIT_POINTER(ppd->cc_state, NULL);
 		spin_unlock(&ppd->cc_state_lock);
 
 		if (cc_state)
-- 
1.9.1