linux-kernel - [PATCH tip/core/rcu 12/13] rcu: Remove deprecated rcu_lockdep

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Message-Id: <1444148028-11551-12-git-send-email-paulmck@linux.vnet.ibm.com>
Date:	Tue,  6 Oct 2015 09:13:47 -0700
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	linux-kernel@...r.kernel.org
Cc:	mingo@...nel.org, jiangshanlai@...il.com, dipankar@...ibm.com,
	akpm@...ux-foundation.org, mathieu.desnoyers@...icios.com,
	josh@...htriplett.org, tglx@...utronix.de, peterz@...radead.org,
	rostedt@...dmis.org, dhowells@...hat.com, edumazet@...gle.com,
	dvhart@...ux.intel.com, fweisbec@...il.com, oleg@...hat.com,
	bobby.prani@...il.com,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Subject: [PATCH tip/core/rcu 12/13] rcu: Remove deprecated rcu_lockdep_assert()

The old rcu_lockdep_assert() was retained to ease handling of incoming
patches, but any use will result in deprecated warnings.  However, its
replacement, RCU_LOCKDEP_WARN(), is now upstream.  It is therefore
time to remove rcu_lockdep_assert(), which this commit does.

Signed-off-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
---
 include/linux/rcupdate.h | 21 ---------------------
 1 file changed, 21 deletions(-)

diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 587eb057e2fa..a0189ba67fde 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -537,29 +537,9 @@ static inline int rcu_read_lock_sched_held(void)
 
 #endif /* #else #ifdef CONFIG_DEBUG_LOCK_ALLOC */
 
-/* Deprecate rcu_lockdep_assert():  Use RCU_LOCKDEP_WARN() instead. */
-static inline void __attribute((deprecated)) deprecate_rcu_lockdep_assert(void)
-{
-}
-
 #ifdef CONFIG_PROVE_RCU
 
 /**
- * rcu_lockdep_assert - emit lockdep splat if specified condition not met
- * @c: condition to check
- * @s: informative message
- */
-#define rcu_lockdep_assert(c, s)					\
-	do {								\
-		static bool __section(.data.unlikely) __warned;		\
-		deprecate_rcu_lockdep_assert();				\
-		if (debug_lockdep_rcu_enabled() && !__warned && !(c)) {	\
-			__warned = true;				\
-			lockdep_rcu_suspicious(__FILE__, __LINE__, s);	\
-		}							\
-	} while (0)
-
-/**
  * RCU_LOCKDEP_WARN - emit lockdep splat if specified condition is met
  * @c: condition to check
  * @s: informative message
@@ -596,7 +576,6 @@ static inline void rcu_preempt_sleep_check(void)
 
 #else /* #ifdef CONFIG_PROVE_RCU */
 
-#define rcu_lockdep_assert(c, s) deprecate_rcu_lockdep_assert()
 #define RCU_LOCKDEP_WARN(c, s) do { } while (0)
 #define rcu_sleep_check() do { } while (0)
 
-- 
2.5.2

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