linux-kernel - [PATCH 4/8] locking/lockdep: Remove useless conditional macro

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Date:   Tue, 26 Feb 2019 18:03:23 +0800
From:   Yuyang Du <duyuyang@...il.com>
To:     peterz@...radead.org, mingo@...nel.org
Cc:     linux-kernel@...r.kernel.org, Yuyang Du <duyuyang@...il.com>
Subject: [PATCH 4/8] locking/lockdep: Remove useless conditional macro

Since #defined(CONFIG_PROVE_LOCKING) is used in the scope of #ifdef
CONFIG_PROVE_LOCKING, it can be removed.

Signed-off-by: Yuyang Du <duyuyang@...il.com>
---
 kernel/locking/lockdep.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index 8b8495e..0610c0b 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -1331,7 +1331,7 @@ unsigned long lockdep_count_backward_deps(struct lock_class *class)
 	return result;
 }
 
-#if defined(CONFIG_TRACE_IRQFLAGS) && defined(CONFIG_PROVE_LOCKING)
+#if defined(CONFIG_TRACE_IRQFLAGS)
 /*
  * Forwards and backwards subgraph searching, for the purposes of
  * proving that two subgraphs can be connected by a new dependency
@@ -1709,7 +1709,7 @@ static inline void inc_chains(void)
 	nr_process_chains++;
 }
 
-#endif
+#endif /* CONFIG_TRACE_IRQFLAGS */
 
 static void print_deadlock_scenario(struct held_lock *nxt,
 				    struct held_lock *prv)
@@ -2363,7 +2363,7 @@ static inline int validate_chain(struct task_struct *curr,
 {
 	return 1;
 }
-#endif
+#endif /* CONFIG_PROVE_LOCKING */
 
 /*
  * We are building curr_chain_key incrementally, so double-check
-- 
1.8.3.1