From 94060d2235cf419f2d46dbce95727e6f826b233c Mon Sep 17 00:00:00 2001 From: Tobias Klauser Date: Mon, 17 Oct 2016 11:13:07 +0200 Subject: [PATCH] rcu: Remove unused but set variable MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Since commit 7ec99de36f40 ("rcu: Provide exact CPU-online tracking for RCU"), the variable mask in rcu_init_percpu_data is set but no longer used. Remove it to fix the following warning when building with 'W=1': kernel/rcu/tree.c: In function ‘rcu_init_percpu_data’: kernel/rcu/tree.c:3765:16: warning: variable ‘mask’ set but not used [-Wunused-but-set-variable] Signed-off-by: Tobias Klauser Signed-off-by: Paul E. McKenney Reviewed-by: Josh Triplett --- kernel/rcu/tree.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index 6232d2f9a84e..83bf054e194e 100644 --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c @@ -3765,7 +3765,6 @@ static void rcu_init_percpu_data(int cpu, struct rcu_state *rsp) { unsigned long flags; - unsigned long mask; struct rcu_data *rdp = per_cpu_ptr(rsp->rda, cpu); struct rcu_node *rnp = rcu_get_root(rsp); @@ -3788,7 +3787,6 @@ rcu_init_percpu_data(int cpu, struct rcu_state *rsp) * of the next grace period. */ rnp = rdp->mynode; - mask = rdp->grpmask; raw_spin_lock_rcu_node(rnp); /* irqs already disabled. */ if (!rdp->beenonline) WRITE_ONCE(rsp->ncpus, READ_ONCE(rsp->ncpus) + 1);