ANDROID: rcu_sync: Export rcu_sync_lockdep_assert

x86_64:allmodconfig fails to build with the following error.

ERROR: "rcu_sync_lockdep_assert" [kernel/locking/locktorture.ko] undefined!

Introduced by commit 3228c5eb7af2 ("RFC: FROMLIST: locking/percpu-rwsem:
Optimize readers and reduce global impact"). The applied upstream version
exports the missing symbol, so let's do the same.

Change-Id: If4e516715c3415fe8c82090f287174857561550d
Fixes: 3228c5eb7af2 ("RFC: FROMLIST: locking/percpu-rwsem: Optimize ...")
Signed-off-by: Guenter Roeck <groeck@chromium.org>

diff --git a/kernel/rcu/sync.c b/kernel/rcu/sync.c
index e358313a0d6c289166f13ca931e26c36ca1d03cd..b49cf3ac2d475a40a0558abed478dad5908ec376 100644 (file)
--- a/kernel/rcu/sync.c
+++ b/kernel/rcu/sync.c
@@ -68,6 +68,7 @@ void rcu_sync_lockdep_assert(struct rcu_sync *rsp)
        RCU_LOCKDEP_WARN(!gp_ops[rsp->gp_type].held(),
                         "suspicious rcu_sync_is_idle() usage");
 }
+EXPORT_SYMBOL_GPL(rcu_sync_lockdep_assert);
 #endif
 
 /**