qcacmn: Change to avoid compilation issue HK2.0

EWMA macros which were used for sojourn stats
time delay calculation, causing compilation issue
for x86 platform as x86 platform is on kernel
version less than 4.3 and EWMA macros were
introduced after that version.

Change-Id: I184844c7df8e5b317a095355c2f6a9af9e4747ff
CRs-Fixed: 2308338

qdf/inc/qdf_util.h

@@ -109,18 +109,18 @@ typedef __qdf_wait_queue_head_t qdf_wait_queue_head_t;
 	 (_a)[5] == 0xff)
 
 #define QDF_DECLARE_EWMA(name, factor, weight) \
-	_QDF_DECLARE_EWMA(name, factor, weight)
+	__QDF_DECLARE_EWMA(name, factor, weight)
 
-#define qdf_ewma_tx_lag _qdf_ewma_tx_lag
+#define qdf_ewma_tx_lag __qdf_ewma_tx_lag
 
 #define qdf_ewma_tx_lag_init(tx_lag) \
-	 _qdf_ewma_tx_lag_init(tx_lag)
+	__qdf_ewma_tx_lag_init(tx_lag)
 
 #define qdf_ewma_tx_lag_add(tx_lag, value) \
-	 _qdf_ewma_tx_lag_add(tx_lag, value)
+	__qdf_ewma_tx_lag_add(tx_lag, value)
 
 #define qdf_ewma_tx_lag_read(tx_lag) \
-	 _qdf_ewma_tx_lag_read(tx_lag)
+	 __qdf_ewma_tx_lag_read(tx_lag)
 
 /**
  * qdf_status_to_os_return - returns the status to OS.

qdf/linux/src/i_qdf_util.h

@@ -281,10 +281,22 @@ static inline bool __qdf_is_macaddr_equal(struct qdf_mac_addr *mac_addr1,
 
 #define __qdf_min(_a, _b) min(_a, _b)
 #define __qdf_max(_a, _b) max(_a, _b)
-#define _QDF_DECLARE_EWMA(name, _factor, _weight) \
+
+/**
+ * Setting it to blank as feature is not intended to be supported
+ * on linux version less than 4.3
+ */
+#if LINUX_VERSION_CODE  < KERNEL_VERSION(4, 3, 0) || \
+	LINUX_VERSION_CODE  >= KERNEL_VERSION(4, 11, 0)
+#define __QDF_DECLARE_EWMA(name, _factor, _weight)
+
+#define __qdf_ewma_tx_lag struct ewma
+#else
+#define __QDF_DECLARE_EWMA(name, _factor, _weight) \
 	DECLARE_EWMA(name, _factor, _weight)
 
-#define _qdf_ewma_tx_lag struct ewma_tx_lag
+#define __qdf_ewma_tx_lag struct ewma_tx_lag
+#endif
 
 #define __qdf_ffz(mask) (~(mask) == 0 ? -1 : ffz(mask))
 
@@ -355,14 +367,21 @@ static inline bool __qdf_is_macaddr_equal(struct qdf_mac_addr *mac_addr1,
 
 #define __qdf_roundup(x, y) roundup(x, y)
 
-#define  _qdf_ewma_tx_lag_init(tx_lag) \
+#if LINUX_VERSION_CODE  < KERNEL_VERSION(4, 3, 0) || \
+	LINUX_VERSION_CODE  >= KERNEL_VERSION(4, 11, 0)
+#define  __qdf_ewma_tx_lag_init(tx_lag)
+#define  __qdf_ewma_tx_lag_add(tx_lag, value)
+#define  __qdf_ewma_tx_lag_read(tx_lag)
+#else
+#define  __qdf_ewma_tx_lag_init(tx_lag) \
 	ewma_tx_lag_init(tx_lag)
 
-#define  _qdf_ewma_tx_lag_add(tx_lag, value) \
+#define  __qdf_ewma_tx_lag_add(tx_lag, value) \
 	ewma_tx_lag_add(tx_lag, value)
 
-#define  _qdf_ewma_tx_lag_read(tx_lag) \
+#define  __qdf_ewma_tx_lag_read(tx_lag) \
 	ewma_tx_lag_read(tx_lag)
+#endif
 
 #ifdef QCA_CONFIG_SMP
 /**