[RFC PATCH 4/5] kernel/rcu/tree.c:3435 fix a sparse warning

[Pranith Kumar]

kernel/rcu/tree.c:3435:21: warning: incorrect type in argument 1 (different modifiers)
kernel/rcu/tree.c:3435:21:    expected int ( *threadfn )( ... )
kernel/rcu/tree.c:3435:21:    got int ( static [toplevel] [noreturn] *<noident> )( ... )

by removing __noreturn attribute and adding unreachable() as suggested on the
mailing list: http://www.kernelhub.org/?p=2&msg=436683

Signed-off-by: Pranith Kumar <bobby.prani@xxxxxxxxx>
---
 kernel/rcu/tree.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 9ab84d3..6029a2e 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -1689,7 +1689,7 @@ static void rcu_gp_cleanup(struct rcu_state *rsp)
 /*
  * Body of kthread that handles grace periods.
  */
-static int __noreturn rcu_gp_kthread(void *arg)
+static int rcu_gp_kthread(void *arg)
 {
 	int fqs_state;
 	int gf;
@@ -1777,6 +1777,9 @@ static int __noreturn rcu_gp_kthread(void *arg)
 		/* Handle grace-period end. */
 		rcu_gp_cleanup(rsp);
 	}
+
+	unreachable();
+	return 0;
 }
 
 /*
-- 
1.9.1

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