staging: wfx: simplify hif_mib_uc_mc_bc_data_frame_condition

The current API defines bitfields. It is not very convenient. Prefer to
use bitmasks.

Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20200115135338.14374-33-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wfx/hif_api_mib.h

@@ -181,19 +181,13 @@ struct hif_mib_ipv6_addr_data_frame_condition {
 	u8    i_pv6_address[HIF_API_IPV6_ADDRESS_SIZE];
 } __packed;
 
-union hif_addr_type {
-	u8 value;
-	struct {
-		u8    type_unicast:1;
-		u8    type_multicast:1;
-		u8    type_broadcast:1;
-		u8    reserved:5;
-	} bits;
-};
+#define HIF_FILTER_UNICAST   0x1
+#define HIF_FILTER_MULTICAST 0x2
+#define HIF_FILTER_BROADCAST 0x4
 
 struct hif_mib_uc_mc_bc_data_frame_condition {
 	u8    condition_idx;
-	union hif_addr_type param;
+	u8    allowed_frames;
 	u8    reserved[2];
 } __packed;
 

drivers/staging/wfx/hif_tx_mib.h

@@ -246,15 +246,12 @@ static inline int hif_set_mac_addr_condition(struct wfx_vif *wvif,
 			     arg, sizeof(*arg));
 }
 
-// FIXME: use a bitfield instead of 3 boolean values
-static inline int hif_set_uc_mc_bc_condition(struct wfx_vif *wvif, int idx,
-					     bool unic, bool multic, bool broadc)
+static inline int hif_set_uc_mc_bc_condition(struct wfx_vif *wvif,
+					     int idx, u8 allowed_frames)
 {
 	struct hif_mib_uc_mc_bc_data_frame_condition val = {
 		.condition_idx = idx,
-		.param.bits.type_unicast = unic,
-		.param.bits.type_multicast = multic,
-		.param.bits.type_broadcast = broadc,
+		.allowed_frames = allowed_frames,
 	};
 
 	return hif_write_mib(wvif->wdev, wvif->id,

drivers/staging/wfx/sta.c

@@ -142,8 +142,8 @@ static int wfx_set_mcast_filter(struct wfx_vif *wvif,
 		config.mac_cond |= 1 << i;
 	}
 
-	// Accept unicast and broadcast
-	ret = hif_set_uc_mc_bc_condition(wvif, 0, true, false, true);
+	ret = hif_set_uc_mc_bc_condition(wvif, 0, HIF_FILTER_UNICAST |
+						  HIF_FILTER_BROADCAST);
 	if (ret)
 		return ret;