[PATCH] rcu: remove duplicate CONFIG_RCU_CPU_STALL_DETECTOR

[Lai Jiangshan]

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@xxxxxxxxxxxxxx>
---
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 4c9ae60..e770e85 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


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