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rcutorture: Warn on bad torture type for built-in tests

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When running a built-in rcutorture test, specifying an invalid torture
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 <paulmck@linux.vnet.ibm.com>
This commit is contained in:
Paul E. McKenney 2018-07-07 17:35:22 -07:00
parent 444da518fd
commit e746b55857
1 changed files with 1 additions and 0 deletions
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1
kernel/rcu/rcutorture.c
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@ -1968,6 +1968,7 @@ rcu_torture_init(void)
for (i = 0; i < ARRAY_SIZE(torture_ops); i++)
pr_cont(" %s", torture_ops[i]->name);
pr_cont("\n");
WARN_ON(!IS_MODULE(CONFIG_RCU_TORTURE_TEST));
firsterr = -EINVAL;
goto unwind;
}