From 55fbe86ef303bc8ab040e579fba34a750c08200e Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Tue, 19 May 2020 15:02:02 -0700 Subject: [PATCH] rcu: Remove initialized but unused rnp from check_slow_task() This commit removes the variable rnp from check_slow_task(), which is defined, assigned to, but not otherwise used. Reported-by: kbuild test robot Signed-off-by: Paul E. McKenney --- kernel/rcu/tree_stall.h | 2 -- 1 file changed, 2 deletions(-) diff --git a/kernel/rcu/tree_stall.h b/kernel/rcu/tree_stall.h index 2768ce6bf657..d203f82a380a 100644 --- a/kernel/rcu/tree_stall.h +++ b/kernel/rcu/tree_stall.h @@ -237,14 +237,12 @@ struct rcu_stall_chk_rdr { */ static bool check_slow_task(struct task_struct *t, void *arg) { - struct rcu_node *rnp; struct rcu_stall_chk_rdr *rscrp = arg; if (task_curr(t)) return false; // It is running, so decline to inspect it. rscrp->nesting = t->rcu_read_lock_nesting; rscrp->rs = t->rcu_read_unlock_special; - rnp = t->rcu_blocked_node; rscrp->on_blkd_list = !list_empty(&t->rcu_node_entry); return true; }