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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 <lkp@intel.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
This commit is contained in:
Paul E. McKenney 2020-05-19 15:02:02 -07:00
parent 3c8920e2db
commit 55fbe86ef3
1 changed files with 0 additions and 2 deletions
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2
kernel/rcu/tree_stall.h
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@ -237,14 +237,12 @@ struct rcu_stall_chk_rdr {
*/ */
static bool check_slow_task(struct task_struct *t, void *arg) static bool check_slow_task(struct task_struct *t, void *arg)
{ {
struct rcu_node *rnp;
struct rcu_stall_chk_rdr *rscrp = arg; struct rcu_stall_chk_rdr *rscrp = arg;
if (task_curr(t)) if (task_curr(t))
return false; // It is running, so decline to inspect it. return false; // It is running, so decline to inspect it.
rscrp->nesting = t->rcu_read_lock_nesting; rscrp->nesting = t->rcu_read_lock_nesting;
rscrp->rs = t->rcu_read_unlock_special; rscrp->rs = t->rcu_read_unlock_special;
rnp = t->rcu_blocked_node;
rscrp->on_blkd_list = !list_empty(&t->rcu_node_entry); rscrp->on_blkd_list = !list_empty(&t->rcu_node_entry);
return true; return true;
} }