wmi_bss_info_hdr2
struct wmi_bss_info_hdr2 *bih;
if (len <= sizeof(struct wmi_bss_info_hdr2))
bih = (struct wmi_bss_info_hdr2 *) datap;
buf = datap + sizeof(struct wmi_bss_info_hdr2);
len -= sizeof(struct wmi_bss_info_hdr2);