From: Guenter Roeck <groeck@chromium.org>
Date: Wed, 31 Aug 2016 16:52:16 +0000 (-0700)
Subject: ANDROID: rcu_sync: Export rcu_sync_lockdep_assert
X-Git-Tag: firefly_0821_release~176^2~326
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=8b94247342c5d606af162aa4da6618481d9c1ca0;p=firefly-linux-kernel-4.4.55.git

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 e358313a0d6c..b49cf3ac2d47 100644
--- 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
 
 /**