From 98f1131240b7cd2cba77335bf77c3b72f39eb5a8 Mon Sep 17 00:00:00 2001
From: Edayilliam Jayadev <quic_ejayadev@quicinc.com>
Date: Thu, 16 Feb 2023 16:14:03 +0530
Subject: [PATCH] qcacmn: Add an API to decrement an atomic variable if it is
 positive

Add an API to decrement an atomic variable if its value is positive.

CRs-Fixed: 3408572
Change-Id: I9649f1093850452a38acae6fa48e663a4e6d9c68
---
 qdf/inc/qdf_atomic.h         | 12 ++++++++++++
 qdf/linux/src/i_qdf_atomic.h | 12 ++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/qdf/inc/qdf_atomic.h b/qdf/inc/qdf_atomic.h
index d788ec3b68..fd31603367 100644
--- a/qdf/inc/qdf_atomic.h
+++ b/qdf/inc/qdf_atomic.h
@@ -154,6 +154,18 @@ static inline int32_t qdf_atomic_dec_return(qdf_atomic_t *v)
 	return __qdf_atomic_dec_return(v);
 }
 
+/**
+ * qdf_atomic_dec_if_positive() - Decrement an atomic variable if its
+ * value is positive
+ * @v: A pointer to an opaque atomic variable
+ *
+ * Return: The old value of the variable minus 1
+ */
+static inline int32_t qdf_atomic_dec_if_positive(qdf_atomic_t *v)
+{
+	return __qdf_atomic_dec_if_positive(v);
+}
+
 /**
  * qdf_atomic_inc_not_zero() - increment if not zero
  * @v: A pointer to an opaque atomic variable
diff --git a/qdf/linux/src/i_qdf_atomic.h b/qdf/linux/src/i_qdf_atomic.h
index b62e2a58ea..c3c0c49c33 100644
--- a/qdf/linux/src/i_qdf_atomic.h
+++ b/qdf/linux/src/i_qdf_atomic.h
@@ -149,6 +149,18 @@ static inline int32_t __qdf_atomic_dec_return(__qdf_atomic_t *v)
 	return atomic_dec_return(v);
 }
 
+/**
+ * __qdf_atomic_dec_if_positive() - Decrement an atomic variable if its
+ * value is positive
+ * @v: A pointer to an opaque atomic variable
+ *
+ * Return: The old value of the variable minus 1
+ */
+static inline int32_t __qdf_atomic_dec_if_positive(__qdf_atomic_t *v)
+{
+	return atomic_dec_if_positive(v);
+}
+
 /**
  * __qdf_atomic_inc_not_zero() - increment if not zero
  * @v: A pointer to an opaque atomic variable