2423 	struct ieee80211_fast_tx build = {}, *fast_tx = NULL, *old;  in ieee80211_check_fast_xmit()  local
2426 	struct ieee80211_hdr *hdr = (void *)build.hdr;  in ieee80211_check_fast_xmit()
2474 	build.band = chanctx_conf->def.chan->band;  in ieee80211_check_fast_xmit()
2482 		build.da_offs = offsetof(struct ieee80211_hdr, addr1);  in ieee80211_check_fast_xmit()
2483 		build.sa_offs = offsetof(struct ieee80211_hdr, addr2);  in ieee80211_check_fast_xmit()
2485 		build.hdr_len = 24;  in ieee80211_check_fast_xmit()
2490 			build.da_offs = offsetof(struct ieee80211_hdr, addr1);  in ieee80211_check_fast_xmit()
2491 			build.sa_offs = offsetof(struct ieee80211_hdr, addr2);  in ieee80211_check_fast_xmit()
2493 			build.hdr_len = 24;  in ieee80211_check_fast_xmit()
2504 			build.da_offs = offsetof(struct ieee80211_hdr, addr3);  in ieee80211_check_fast_xmit()
2505 			build.sa_offs = offsetof(struct ieee80211_hdr, addr4);  in ieee80211_check_fast_xmit()
2506 			build.hdr_len = 30;  in ieee80211_check_fast_xmit()
2512 		build.da_offs = offsetof(struct ieee80211_hdr, addr3);  in ieee80211_check_fast_xmit()
2513 		build.sa_offs = offsetof(struct ieee80211_hdr, addr2);  in ieee80211_check_fast_xmit()
2514 		build.hdr_len = 24;  in ieee80211_check_fast_xmit()
2523 			build.da_offs = offsetof(struct ieee80211_hdr, addr3);  in ieee80211_check_fast_xmit()
2524 			build.sa_offs = offsetof(struct ieee80211_hdr, addr4);  in ieee80211_check_fast_xmit()
2525 			build.hdr_len = 30;  in ieee80211_check_fast_xmit()
2532 		build.da_offs = offsetof(struct ieee80211_hdr, addr1);  in ieee80211_check_fast_xmit()
2534 		build.sa_offs = offsetof(struct ieee80211_hdr, addr3);  in ieee80211_check_fast_xmit()
2535 		build.hdr_len = 24;  in ieee80211_check_fast_xmit()
2543 		build.hdr_len += 2;  in ieee80211_check_fast_xmit()
2552 	build.key = rcu_access_pointer(sta->ptk[sta->ptk_idx]);  in ieee80211_check_fast_xmit()
2553 	if (!build.key)  in ieee80211_check_fast_xmit()
2554 		build.key = rcu_access_pointer(sdata->default_unicast_key);  in ieee80211_check_fast_xmit()
2555 	if (build.key) {  in ieee80211_check_fast_xmit()
2558 		gen_iv = build.key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV;  in ieee80211_check_fast_xmit()
2559 		iv_spc = build.key->conf.flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE;  in ieee80211_check_fast_xmit()
2560 		mmic = build.key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC;  in ieee80211_check_fast_xmit()
2563 		if (!(build.key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))  in ieee80211_check_fast_xmit()
2566 		switch (build.key->conf.cipher) {  in ieee80211_check_fast_xmit()
2571 				(build.hdr + build.hdr_len)[3] =  in ieee80211_check_fast_xmit()
2572 					0x20 | (build.key->conf.keyidx << 6);  in ieee80211_check_fast_xmit()
2573 				build.pn_offs = build.hdr_len;  in ieee80211_check_fast_xmit()
2576 				build.hdr_len += IEEE80211_CCMP_HDR_LEN;  in ieee80211_check_fast_xmit()
2582 				(build.hdr + build.hdr_len)[3] =  in ieee80211_check_fast_xmit()
2583 					0x20 | (build.key->conf.keyidx << 6);  in ieee80211_check_fast_xmit()
2584 				build.pn_offs = build.hdr_len;  in ieee80211_check_fast_xmit()
2587 				build.hdr_len += IEEE80211_GCMP_HDR_LEN;  in ieee80211_check_fast_xmit()
2594 				build.hdr_len += IEEE80211_TKIP_IV_LEN;  in ieee80211_check_fast_xmit()
2602 				build.hdr_len += IEEE80211_WEP_IV_LEN;  in ieee80211_check_fast_xmit()
2610 			     build.key->conf.cipher);  in ieee80211_check_fast_xmit()
2617 			if (!(build.key->flags & KEY_FLAG_CIPHER_SCHEME))  in ieee80211_check_fast_xmit()
2621 			    build.key->conf.iv_len > IEEE80211_FAST_XMIT_MAX_IV)  in ieee80211_check_fast_xmit()
2624 				build.hdr_len += build.key->conf.iv_len;  in ieee80211_check_fast_xmit()
2632 	memcpy(build.hdr + build.hdr_len,  in ieee80211_check_fast_xmit()
2634 	build.hdr_len += sizeof(rfc1042_header);  in ieee80211_check_fast_xmit()
2636 	fast_tx = kmemdup(&build, sizeof(build), GFP_ATOMIC);  in ieee80211_check_fast_xmit()