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Subject[PATCH 4.14 073/251] locking/lockdep: Avoid RCU-induced noinstr fail
Date
From: Peter Zijlstra <peterz@infradead.org>

[ Upstream commit ce0b9c805dd66d5e49fd53ec5415ae398f4c56e6 ]

vmlinux.o: warning: objtool: look_up_lock_class()+0xc7: call to rcu_read_lock_any_held() leaves .noinstr.text section

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210624095148.311980536@infradead.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
kernel/locking/lockdep.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index 03e3ab61a2edd..ac0725b1ada75 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -713,7 +713,7 @@ look_up_lock_class(struct lockdep_map *lock, unsigned int subclass)
if (DEBUG_LOCKS_WARN_ON(!irqs_disabled()))
return NULL;

- hlist_for_each_entry_rcu(class, hash_head, hash_entry) {
+ hlist_for_each_entry_rcu_notrace(class, hash_head, hash_entry) {
if (class->key == key) {
/*
* Huh! same key, different name? Did someone trample
--
2.33.0


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