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author | Nick Desaulniers <ndesaulniers@google.com> | 2022-03-15 01:19:03 +0300 |
---|---|---|
committer | Peter Zijlstra <peterz@infradead.org> | 2022-04-05 11:24:34 +0300 |
commit | 8b023accc8df70e72f7704d29fead7ca914d6837 (patch) | |
tree | 7d3d325dc189c4dc97b53a0e44bab84eb131076b /kernel/locking/lockdep.c | |
parent | ace1a98519270c586c0d4179419292df67441cd1 (diff) | |
download | linux-8b023accc8df70e72f7704d29fead7ca914d6837.tar.xz |
lockdep: Fix -Wunused-parameter for _THIS_IP_
While looking into a bug related to the compiler's handling of addresses
of labels, I noticed some uses of _THIS_IP_ seemed unused in lockdep.
Drive by cleanup.
-Wunused-parameter:
kernel/locking/lockdep.c:1383:22: warning: unused parameter 'ip'
kernel/locking/lockdep.c:4246:48: warning: unused parameter 'ip'
kernel/locking/lockdep.c:4844:19: warning: unused parameter 'ip'
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Waiman Long <longman@redhat.com>
Link: https://lore.kernel.org/r/20220314221909.2027027-1-ndesaulniers@google.com
Diffstat (limited to 'kernel/locking/lockdep.c')
-rw-r--r-- | kernel/locking/lockdep.c | 22 |
1 files changed, 8 insertions, 14 deletions
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c index c06cab6546ed..3cbd49216174 100644 --- a/kernel/locking/lockdep.c +++ b/kernel/locking/lockdep.c @@ -1380,7 +1380,7 @@ static struct lock_list *alloc_list_entry(void) */ static int add_lock_to_list(struct lock_class *this, struct lock_class *links_to, struct list_head *head, - unsigned long ip, u16 distance, u8 dep, + u16 distance, u8 dep, const struct lock_trace *trace) { struct lock_list *entry; @@ -3133,19 +3133,15 @@ check_prev_add(struct task_struct *curr, struct held_lock *prev, * to the previous lock's dependency list: */ ret = add_lock_to_list(hlock_class(next), hlock_class(prev), - &hlock_class(prev)->locks_after, - next->acquire_ip, distance, - calc_dep(prev, next), - *trace); + &hlock_class(prev)->locks_after, distance, + calc_dep(prev, next), *trace); if (!ret) return 0; ret = add_lock_to_list(hlock_class(prev), hlock_class(next), - &hlock_class(next)->locks_before, - next->acquire_ip, distance, - calc_depb(prev, next), - *trace); + &hlock_class(next)->locks_before, distance, + calc_depb(prev, next), *trace); if (!ret) return 0; @@ -4236,14 +4232,13 @@ static void __trace_hardirqs_on_caller(void) /** * lockdep_hardirqs_on_prepare - Prepare for enabling interrupts - * @ip: Caller address * * Invoked before a possible transition to RCU idle from exit to user or * guest mode. This ensures that all RCU operations are done before RCU * stops watching. After the RCU transition lockdep_hardirqs_on() has to be * invoked to set the final state. */ -void lockdep_hardirqs_on_prepare(unsigned long ip) +void lockdep_hardirqs_on_prepare(void) { if (unlikely(!debug_locks)) return; @@ -4840,8 +4835,7 @@ EXPORT_SYMBOL_GPL(__lockdep_no_validate__); static void print_lock_nested_lock_not_held(struct task_struct *curr, - struct held_lock *hlock, - unsigned long ip) + struct held_lock *hlock) { if (!debug_locks_off()) return; @@ -5017,7 +5011,7 @@ static int __lock_acquire(struct lockdep_map *lock, unsigned int subclass, chain_key = iterate_chain_key(chain_key, hlock_id(hlock)); if (nest_lock && !__lock_is_held(nest_lock, -1)) { - print_lock_nested_lock_not_held(curr, hlock, ip); + print_lock_nested_lock_not_held(curr, hlock); return 0; } |