[PATCH tip/core/rcu 09/12] rcu: Break dependency of RCU_FANOUT_LEAF on RCU_FANOUT

["Paul E. McKenney" <paulmck@linux.vnet.ibm.com>]

From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>

RCU_FANOUT_LEAF's range and default values depend on the value of
RCU_FANOUT, which at the time seemed like a cute way to save two lines
of Kconfig code.  However, adding a dependency from both of these
Kconfig parameters on RCU_EXPERT requires that RCU_FANOUT_LEAF operate
correctly even if RCU_FANOUT is undefined.  This commit therefore
allows RCU_FANOUT_LEAF to take on the full range of permitted values,
even in cases where RCU_FANOUT is undefined.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
 init/Kconfig | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/init/Kconfig b/init/Kconfig
index aa68d72fe051..35559e07db18 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -599,9 +599,11 @@ config RCU_FANOUT
 
 config RCU_FANOUT_LEAF
 	int "Tree-based hierarchical RCU leaf-level fanout value"
-	range 2 RCU_FANOUT if 64BIT
-	range 2 RCU_FANOUT if !64BIT
+	range 2 64 if 64BIT
+	range 2 32 if !64BIT
 	depends on TREE_RCU || PREEMPT_RCU
+	default 64 if 64BIT
+	default 32 if !64BIT
 	default 16
 	help
 	  This option controls the leaf-level fanout of hierarchical
-- 
1.8.1.5