staging: r8188eu: make on_action_public static void

The on_action_public function is called only by OnAction. This function
also lives in rtw_mlme_ext.c and does not check the return value from
on_action_public.

We can make on_action_public a static void function.

The ret variable is no longer needed if we don't return a value. It can
be removed.
Reported-by: kernel test robot <lkp@intel.com>
Tested-by: Philipp Hortmann <philipp.g.hortmann@gmail.com> # Edimax N150
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20221030173326.1588647-4-martin@kaiser.cxSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/core/rtw_mlme_ext.c

@@ -3813,30 +3813,26 @@ static unsigned int on_action_public_default(struct recv_frame *precv_frame)
 	return ret;
 }
 
-unsigned int on_action_public(struct adapter *padapter, struct recv_frame *precv_frame)
+static void on_action_public(struct adapter *padapter, struct recv_frame *precv_frame)
 {
 	struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)precv_frame->rx_data;
-	unsigned int ret = _FAIL;
 	u8 *pframe = precv_frame->rx_data;
 	u8 *frame_body = pframe + sizeof(struct ieee80211_hdr_3addr);
 	u8 action;
 
 	/* check RA matches or not */
 	if (memcmp(myid(&padapter->eeprompriv), mgmt->da, ETH_ALEN))
-		goto exit;
+		return;
 
 	action = frame_body[1];
 	switch (action) {
 	case ACT_PUBLIC_VENDOR:
-		ret = on_action_public_vendor(precv_frame);
+		on_action_public_vendor(precv_frame);
 		break;
 	default:
-		ret = on_action_public_default(precv_frame);
+		on_action_public_default(precv_frame);
 		break;
 	}
-
-exit:
-	return ret;
 }
 
 unsigned int OnAction_p2p(struct adapter *padapter, struct recv_frame *precv_frame)

drivers/staging/r8188eu/include/rtw_mlme_ext.h

@@ -538,8 +538,6 @@ void start_create_ibss(struct adapter *padapter);
 
 unsigned int OnAction_back(struct adapter *padapter,
 			   struct recv_frame *precv_frame);
-unsigned int on_action_public(struct adapter *padapter,
-			      struct recv_frame *precv_frame);
 unsigned int OnAction_p2p(struct adapter *padapter,
 			  struct recv_frame *precv_frame);