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Subject[tip: locking/core] locking/lockdep: Reduce header dependencies in <linux/debug_locks.h>
The following commit has been merged into the locking/core branch of tip:

Commit-ID: cbcebf5bd3d056d7a0ae332118888d867ac346c0
Gitweb: https://git.kernel.org/tip/cbcebf5bd3d056d7a0ae332118888d867ac346c0
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
AuthorDate: Sun, 15 Aug 2021 23:28:17 +02:00
Committer: Ingo Molnar <mingo@kernel.org>
CommitterDate: Tue, 17 Aug 2021 17:29:10 +02:00

locking/lockdep: Reduce header dependencies in <linux/debug_locks.h>

The inclusion of printk.h leads to a circular dependency if spinlock_t is
based on rtmutexes on RT enabled kernels.

Include only atomic.h (xchg()) and cache.h (__read_mostly) which is all
what debug_locks.h requires.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20210815211303.484161136@linutronix.de
---
include/linux/debug_locks.h | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/include/linux/debug_locks.h b/include/linux/debug_locks.h
index edb5c18..3f49e65 100644
--- a/include/linux/debug_locks.h
+++ b/include/linux/debug_locks.h
@@ -3,8 +3,7 @@
#define __LINUX_DEBUG_LOCKING_H

#include <linux/atomic.h>
-#include <linux/bug.h>
-#include <linux/printk.h>
+#include <linux/cache.h>

struct task_struct;

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