staging: wfx: drop useless struct hif_map_link_flags

Struct hif_map_link_flags has no reason to exist. Drop it and simplify
access to struct hif_req_map_link.

Also rename the field 'map_direction' in 'unmap'. It is more
meaningful and allows to drop enum hif_sta_map_direction.
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20200907101521.66082-15-Jerome.Pouiller@silabs.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wfx/hif_api_cmd.h

@@ -434,20 +434,11 @@ struct hif_cnf_beacon_transmit {
 #define HIF_LINK_ID_MAX            14
 #define HIF_LINK_ID_NOT_ASSOCIATED (HIF_LINK_ID_MAX + 1)
 
-enum hif_sta_map_direction {
-	HIF_STA_MAP                       = 0x0,
-	HIF_STA_UNMAP                     = 0x1
-};
-
-struct hif_map_link_flags {
-	u8     map_direction:1;
-	u8     mfpc:1;
-	u8     reserved:6;
-} __packed;
-
 struct hif_req_map_link {
 	u8     mac_addr[ETH_ALEN];
-	struct hif_map_link_flags map_link_flags;
+	u8     unmap:1;
+	u8     mfpc:1;
+	u8     reserved:6;
 	u8     peer_sta_id;
 } __packed;
 

drivers/staging/wfx/hif_tx.c

@@ -502,8 +502,8 @@ int hif_map_link(struct wfx_vif *wvif, bool unmap, u8 *mac_addr, int sta_id, boo
 		return -ENOMEM;
 	if (mac_addr)
 		ether_addr_copy(body->mac_addr, mac_addr);
-	body->map_link_flags.mfpc = mfp ? 1 : 0;
-	body->map_link_flags.map_direction = unmap ? 1 : 0;
+	body->mfpc = mfp ? 1 : 0;
+	body->unmap = unmap ? 1 : 0;
 	body->peer_sta_id = sta_id;
 	wfx_fill_header(hif, wvif->id, HIF_REQ_ID_MAP_LINK, sizeof(*body));
 	ret = wfx_cmd_send(wvif->wdev, hif, NULL, 0, false);