rcu: remove duplicate CONFIG_RCU_CPU_STALL_DETECTOR

Impact: remove the old CONFIG_RCU_CPU_STALL_DETECTOR

tree_rcu introduce CONFIG_RCU_CPU_STALL_DETECTOR again.

These two are the same exactly except:

 the old one "depends on CLASSIC_RCU"
 the new one "depends on CLASSIC_RCU || TREE_RCU"

This patch remove the old one.

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 0 insertions, 13 deletions

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 4c9ae6085c75..e770e85f76c7 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -633,19 +633,6 @@ config RCU_TORTURE_TEST_RUNNABLE
 
 config RCU_CPU_STALL_DETECTOR
         bool "Check for stalled CPUs delaying RCU grace periods"
-        depends on CLASSIC_RCU
-        default n
-        help
-          This option causes RCU to printk information on which
-          CPUs are delaying the current grace period, but only when
-          the grace period extends for excessive time periods.
-
-          Say Y if you want RCU to perform such checks.
-
-          Say N if you are unsure.
-
-config RCU_CPU_STALL_DETECTOR
-        bool "Check for stalled CPUs delaying RCU grace periods"
         depends on CLASSIC_RCU || TREE_RCU
         default n
         help