The following commit has been merged into the core/rcu branch of tip:

Commit-ID:     55fbe86ef303bc8ab040e579fba34a750c08200e
Gitweb:        
https://git.kernel.org/tip/55fbe86ef303bc8ab040e579fba34a750c08200e
Author:        Paul E. McKenney <[email protected]>
AuthorDate:    Tue, 19 May 2020 15:02:02 -07:00
Committer:     Paul E. McKenney <[email protected]>
CommitterDate: Mon, 29 Jun 2020 11:58:50 -07:00

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 <[email protected]>
Signed-off-by: Paul E. McKenney <[email protected]>
---
 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 2768ce6..d203f82 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;
 }

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