Seen on an RT_FULL enabled ARM stamp9g20_defconfig:
CC arch/arm/kernel/asm-offsets.s
In file included from include/linux/spinlock.h:273,
from include/linux/seqlock.h:29,
from include/linux/time.h:8,
from include/linux/timex.h:56,
from include/linux/sched.h:57,
from arch/arm/kernel/asm-offsets.c:13:
include/linux/spinlock_rt.h: In function 'assert_spin_locked':
include/linux/spinlock_rt.h:160: error: implicit declaration of function 'BUG_ON'
make[2]: *** [arch/arm/kernel/asm-offsets.s] Error 1
Signed-off-by: Paul Gortmaker <paul.gortmaker@xxxxxxxxxxxxx>
---
[feel free to squash this into patches/rt-add-rt-locks.patch]
diff --git a/include/linux/spinlock_rt.h b/include/linux/spinlock_rt.h
index 3b555b4..0618387 100644
--- a/include/linux/spinlock_rt.h
+++ b/include/linux/spinlock_rt.h
@@ -5,6 +5,8 @@
#error Do not include directly. Use spinlock.h
#endif
+#include <linux/bug.h>
+
extern void
__rt_spin_lock_init(spinlock_t *lock, char *name, struct lock_class_key *key);
--
1.7.9.1
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