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Subject[PATCH 2/7] spinlock: macroize assert_spin_locked to avoid bug.h dependency
In spinlock_api_smp.h we find a define for assert_raw_spin_locked
[which uses BUG_ON]. Then assert_spin_locked (as an inline) uses
it, meaning we need bug.h But rather than put linux/bug.h in such
a highly used file like spinlock.h, we can just make the un-raw
version also a macro. Then the required bug.h presence is limited
just to those few files who are actually doing the assert testing.

Signed-off-by: Paul Gortmaker <>
CC: Thomas Gleixner <>
include/linux/spinlock.h | 5 +----
1 files changed, 1 insertions(+), 4 deletions(-)

diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h
index 7df6c17..3632390 100644
--- a/include/linux/spinlock.h
+++ b/include/linux/spinlock.h
@@ -375,10 +375,7 @@ static inline int spin_can_lock(spinlock_t *lock)
return raw_spin_can_lock(&lock->rlock);

-static inline void assert_spin_locked(spinlock_t *lock)
- assert_raw_spin_locked(&lock->rlock);
+#define assert_spin_locked(lock) assert_raw_spin_locked(&(lock)->rlock)

* Pull the atomic_t declaration:

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