[PATCH 1/7] rcu: fix incorrect conditional compilation

[Lai Jiangshan <laijs@linux.alibaba.com>]

DO NOT pick it to stable tree.
(Since the title has "fix", this statement may help stop
AI pick it to stable tree)

The tokens SRCU and TINY_RCU are not defined by any configurations,
they should be CONFIG_SRCU and CONFIG_TINY_RCU. But there is no
harm when "TINY_RCU" is wrongly used, which are always non-defined,
which makes "!defined(TINY_RCU)" always true, which means
the code block is always inclued, and the included code block
doesn't cause any compilation error so far when CONFIG_TINY_RCU.
It is also the reason this change doesn't need for stable.

Signed-off-by: Lai Jiangshan <jiangshanlai@gmail.com>
Signed-off-by: Lai Jiangshan <laijs@linux.alibaba.com>
---
 kernel/rcu/rcu.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/rcu/rcu.h b/kernel/rcu/rcu.h
index a7ab2a023dd3..05f936ed167a 100644
--- a/kernel/rcu/rcu.h
+++ b/kernel/rcu/rcu.h
@@ -254,7 +254,7 @@ void rcu_test_sync_prims(void);
  */
 extern void resched_cpu(int cpu);
 
-#if defined(SRCU) || !defined(TINY_RCU)
+#if defined(CONFIG_SRCU) || !defined(CONFIG_TINY_RCU)
 
 #include <linux/rcu_node_tree.h>
 
@@ -391,7 +391,7 @@ do {									\
 #define raw_lockdep_assert_held_rcu_node(p)				\
 	lockdep_assert_held(&ACCESS_PRIVATE(p, lock))
 
-#endif /* #if defined(SRCU) || !defined(TINY_RCU) */
+#endif /* #if defined(CONFIG_SRCU) || !defined(CONFIG_TINY_RCU) */
 
 #ifdef CONFIG_SRCU
 void srcu_init(void);
-- 
2.20.1