rcutorture: Replace rcu_torture_stall string with %s

This commit replaces a hard-coded "rcu_torture_stall" string in a
pr_alert() format with "%s" and __func__.

Signed-off-by: Stephen Zhang <stephenzhangzsd@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
This commit is contained in:
Stephen Zhang 2021-01-23 17:54:17 +08:00 • committed by Paul E. McKenney
commit 0a27fff30a