From: Zhen Lei <thunder.leizhen@xxxxxxxxxx> commit 07d25971b220e477eb019fcb520a9f2e3ac966af upstream. It's CONFIG_DEBUG_RT_MUTEXES not CONFIG_DEBUG_RT_MUTEX. Fixes: f7efc4799f81 ("locking/rtmutex: Inline chainwalk depth check") Signed-off-by: Zhen Lei <thunder.leizhen@xxxxxxxxxx> Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Acked-by: Will Deacon <will@xxxxxxxxxx> Acked-by: Boqun Feng <boqun.feng@xxxxxxxxx> Cc: stable@xxxxxxxxxxxxxxx Link: https://lore.kernel.org/r/20210731123011.4555-1-thunder.leizhen@xxxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- kernel/locking/rtmutex.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/kernel/locking/rtmutex.c +++ b/kernel/locking/rtmutex.c @@ -343,7 +343,7 @@ static __always_inline bool rt_mutex_cond_detect_deadlock(struct rt_mutex_waiter *waiter, enum rtmutex_chainwalk chwalk) { - if (IS_ENABLED(CONFIG_DEBUG_RT_MUTEX)) + if (IS_ENABLED(CONFIG_DEBUG_RT_MUTEXES)) return waiter != NULL; return chwalk == RT_MUTEX_FULL_CHAINWALK; }