[PATCH 3/4] eal: add API to check if lcore id is valid

[Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>]

Simple API to check if the lcore ID does not exceed the
maximum number of lcores configured.

Signed-off-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
---
 lib/eal/include/rte_lcore.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/lib/eal/include/rte_lcore.h b/lib/eal/include/rte_lcore.h
index 6a355e9986..cf99919a02 100644
--- a/lib/eal/include/rte_lcore.h
+++ b/lib/eal/include/rte_lcore.h
@@ -38,6 +38,20 @@ enum rte_lcore_role_t {
 	ROLE_NON_EAL,
 };
 
+/**
+ * Check if the lcore ID is valid
+ *
+ * @param lcore_id
+ *   The identifier of the lcore.
+ *
+ * @return
+ *   True if the given lcore ID is between 0 and RTE_MAX_LCORE-1.
+ */
+static inline int rte_lcore_id_is_valid(unsigned int lcore_id)
+{
+	return (lcore_id < RTE_MAX_LCORE);
+}
+
 /**
  * Get a lcore's role.
  *
-- 
2.25.1