When running a built-in rcuperf test, specifying an invalid perf type results in what looks like a hard hang, with the error messages hidden by other boot-time output. This commit therefore executes a WARN_ON() in this case so that the splat appears just following the error messages.
Signed-off-by: Paul E. McKenney <[email protected]> --- kernel/rcu/rcuperf.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/rcu/rcuperf.c b/kernel/rcu/rcuperf.c index 34244523550e..832ce68fd45f 100644 --- a/kernel/rcu/rcuperf.c +++ b/kernel/rcu/rcuperf.c @@ -680,6 +680,7 @@ rcu_perf_init(void) for (i = 0; i < ARRAY_SIZE(perf_ops); i++) pr_cont(" %s", perf_ops[i]->name); pr_cont("\n"); + WARN_ON(!IS_MODULE(CONFIG_RCU_PERF_TEST)); firsterr = -EINVAL; goto unwind; } -- 2.17.1
