staging: ks7010: replace IS_HIF_CONF with inline function

This commit replaces IS_HIF_CONF macro with is_11b_rate inline
function to improve readability.
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/ks7010/ks7010_sdio.c

@@ -408,7 +408,7 @@ static void ks_wlan_hw_rx(struct ks_wlan_private *priv, uint16_t size)
 		netdev_err(priv->net_dev, " error : READ_STATUS\n");
 
 	if (atomic_read(&priv->psstatus.confirm_wait)) {
-		if (IS_HIF_CONF(event)) {
+		if (is_hif_conf(event)) {
 			netdev_dbg(priv->net_dev, "IS_HIF_CONF true !!\n");
 			atomic_dec(&priv->psstatus.confirm_wait);
 		}

drivers/staging/ks7010/ks_hostif.h

@@ -608,7 +608,6 @@ enum multicast_filter_type {
 
 #define NIC_MAX_MCAST_LIST 32
 
-/* macro function */
 #define HIF_EVENT_MASK 0xE800
 
 static inline bool is_hif_ind(unsigned short event)
@@ -621,10 +620,13 @@ static inline bool is_hif_ind(unsigned short event)
 		 ((event & ~HIF_EVENT_MASK) == 0x0012)));
 }
 
-#define IS_HIF_CONF(_EVENT) ((_EVENT & HIF_EVENT_MASK) == 0xE800  && \
-			     (_EVENT & ~HIF_EVENT_MASK) > 0x0000  && \
-			     (_EVENT & ~HIF_EVENT_MASK) < 0x0012  && \
-			     !is_hif_ind(_EVENT))
+static inline bool is_hif_conf(unsigned short event)
+{
+	return (((event & HIF_EVENT_MASK) == HIF_EVENT_MASK) &&
+		((event & ~HIF_EVENT_MASK) > 0x0000) &&
+		((event & ~HIF_EVENT_MASK) < 0x0012) &&
+		!is_hif_ind(event));
+}
 
 #ifdef __KERNEL__