fix the following checkpatch issues:
WARNING: externs should be avoided in .c files
40: FILE: drivers/staging/rtl8723bs/core/rtw_ioctl_set.c:40:
+u8 rtw_do_join(struct adapter *padapter);
WARNING: externs should be avoided in .c files
15: FILE: drivers/staging/rtl8723bs/core/rtw_mlme.c:15:
+extern u8 rtw_do_join(struct adapter *padapter);
moved function prototype in include/rtw_ioctl_set.h
Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/da654adf1295123adca07e3e5809e256dd4def69.1616503354.git.fabioaiuto83@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
        return ret;
 }
 
-u8 rtw_do_join(struct adapter *padapter);
 u8 rtw_do_join(struct adapter *padapter)
 {
        struct list_head        *plist, *phead;
 
 #include <hal_btcoex.h>
 #include <linux/jiffies.h>
 
-extern u8 rtw_do_join(struct adapter *padapter);
-
 int    rtw_init_mlme_priv(struct adapter *padapter)
 {
        int     i;
 
 u8 rtw_validate_bssid(u8 *bssid);
 u8 rtw_validate_ssid(struct ndis_802_11_ssid *ssid);
 
+u8 rtw_do_join(struct adapter *padapter);
+
 u16 rtw_get_cur_max_rate(struct adapter *adapter);
 
 #endif