The following commit has been merged into the core/rcu branch of tip: Commit-ID: 57721fd15a02f7df9dad1f3cca27f21e03ee118f Gitweb: https://git.kernel.org/tip/57721fd15a02f7df9dad1f3cca27f21e03ee118f Author: Paul E. McKenney <paulmck@xxxxxxxxxx> AuthorDate: Wed, 15 Jan 2020 19:17:02 -08:00 Committer: Paul E. McKenney <paulmck@xxxxxxxxxx> CommitterDate: Thu, 20 Feb 2020 15:58:23 -08:00 rcu: Remove dead code from rcu_segcblist_insert_pend_cbs() The rcu_segcblist_insert_pend_cbs() function currently (partially) initializes the rcu_cblist that it pulls callbacks from. However, all the resulting stores are dead because all callers pass in the address of an on-stack cblist that is not used afterwards. This commit therefore removes this pointless initialization. Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxx> --- kernel/rcu/rcu_segcblist.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/kernel/rcu/rcu_segcblist.c b/kernel/rcu/rcu_segcblist.c index 426a472..9a0f661 100644 --- a/kernel/rcu/rcu_segcblist.c +++ b/kernel/rcu/rcu_segcblist.c @@ -381,8 +381,6 @@ void rcu_segcblist_insert_pend_cbs(struct rcu_segcblist *rsclp, return; /* Nothing to do. */ WRITE_ONCE(*rsclp->tails[RCU_NEXT_TAIL], rclp->head); WRITE_ONCE(rsclp->tails[RCU_NEXT_TAIL], rclp->tail); - rclp->head = NULL; - rclp->tail = &rclp->head; } /*
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