From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1C8563CB2E9; Fri, 9 Oct 2026 14:18:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791555505; cv=none; b=HJZk4YdEbH+uLLHG20ThI7U/up172d3yeAX0v+ZfeR7ru1tADP2S71naaNaTVR2WOtVS4jCRBPRKOREN8/wGEDakdYNxTFewjRLfDypWZR72bsymtxz32agQ2vOzWkmdKH4CsufT/8sQORH229RJnbRMRlmhOWxmx9hlyAOZoHw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791555505; c=relaxed/simple; bh=IHsiBqraoYCBzW7nP7GXUW8ZRl4w9w6+LEu7b9IGH/c=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=D1wF73E9ojt4RW4RbXNrpaMtLnj/EV5qktHqg/5PFrZZTjWGdNHKb9Qx7+ZpHyPizIo2TEJeWs6nQqBMczSXpcPqGopVor8BtHqt9Nfd0YP/b6IDSLBavimnI5/k0SiZ1QwQnYz5FkW0EXlyFo0Pjy4jEAIpi0HzBGBXosLBeFE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=c38lLmnW; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="c38lLmnW" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 181701F00893; Fri, 9 Oct 2026 14:18:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1791555499; bh=QUp1SsQPIRisiuGD8DapVTCcO6XzF2I5WHIWOCIjbH4=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=c38lLmnWH8IuouniGg+aMiD3kZ4Sdthw7JmHR7JQroAgpRoSlRL0XpBBHtmfe0hPt 3lJejxBTlWp8KyjeSSGugDNFnKBzU9GiewN0cBhEmtj8U6O+vLPHi4W1rK94l0mYPO jZTGjt7K7Rm+N3b2a5h6n9sI1SIJ+GSqG44aXTto= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Johannes Berg , Sasha Levin Subject: [PATCH 6.18 068/403] wifi: mac80211: remove RX_DROP Date: Fri, 9 Oct 2026 16:07:09 +0200 Message-ID: <20261009140953.687930213@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261009140952.119038291@linuxfoundation.org> References: <20261009140952.119038291@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Johannes Berg [ Upstream commit 58dc87d839280ac0f57b2a5caf647c2ed5cab1aa ] Since it's hard to figure out what RX_DROP means when looking at traces that drop packets in mac80211, add more specific drop reasons and remove RX_DROP entirely. Link: https://patch.msgid.link/20260116092025.79d995e87026.I7cde413988f7a382c551cd1c1e2b05a52ec71755@changeid Signed-off-by: Johannes Berg Stable-dep-of: 5e4f3509793b ("wifi: mac80211: drop oversized fragments to avoid extra_len overflow") Signed-off-by: Sasha Levin --- net/mac80211/drop.h | 46 ++++++++++++++++++++- net/mac80211/rx.c | 98 +++++++++++++++++++++++---------------------- 2 files changed, 94 insertions(+), 50 deletions(-) diff --git a/net/mac80211/drop.h b/net/mac80211/drop.h index eb9ab310f91ca..f06a8aa905c53 100644 --- a/net/mac80211/drop.h +++ b/net/mac80211/drop.h @@ -2,7 +2,7 @@ /* * mac80211 drop reason list * - * Copyright (C) 2023-2024 Intel Corporation + * Copyright (C) 2023-2024, 2026 Intel Corporation */ #ifndef MAC80211_DROP_H @@ -65,6 +65,49 @@ typedef unsigned int __bitwise ieee80211_rx_result; /* 0x30 */ \ R(RX_DROP_U_BAD_MGMT_KEYIDX) \ R(RX_DROP_U_UNKNOWN_ACTION_REJECTED) \ + R(RX_DROP_U_MESH_DS_BITS) \ + R(RX_DROP_U_MESH_A3_MISMATCH) \ + R(RX_DROP_U_MESH_NO_A4) \ + R(RX_DROP_U_MESH_A4_MISMATCH) \ + R(RX_DROP_U_MESH_UNEXP_DATA) \ + R(RX_DROP_U_MESH_WRONG_ACTION) \ + R(RX_DROP_U_MESH_UNEXP_MGMT) \ + R(RX_DROP_U_SPURIOUS_NOTIF) \ + R(RX_DROP_U_RUNT_DATA) \ + R(RX_DROP_U_KEY_TAINTED) \ + R(RX_DROP_U_UNPROTECTED) \ + R(RX_DROP_U_MCAST_FRAGMENT) \ + R(RX_DROP_U_DEFRAG_MISMATCH) \ + R(RX_DROP_U_RUNT_MESH_DATA) \ + /* 0x40 */ \ + R(RX_DROP_U_MESH_NO_TTL) \ + R(RX_DROP_U_MESH_RMC) \ + R(RX_DROP_U_MESH_BAD_AE) \ + R(RX_DROP_U_MESH_TTL_EXPIRED) \ + R(RX_DROP_U_MESH_NOT_FORWARDING) \ + R(RX_DROP_U_AMSDU_WITHOUT_DATA) \ + R(RX_DROP_U_NULL_DATA) \ + R(RX_DROP_U_UNEXPECTED_4ADDR) \ + R(RX_DROP_U_PORT_CONTROL) \ + R(RX_DROP_U_UNKNOWN_STA) \ + R(RX_DROP_U_RUNT_BAR) \ + R(RX_DROP_U_BAR_OUTSIDE_SESSION) \ + R(RX_DROP_U_CTRL_FRAME) \ + R(RX_DROP_U_RUNT_MGMT) \ + R(RX_DROP_U_EXPECTED_MGMT) \ + R(RX_DROP_U_NONBCAST_BEACON) \ + /* 0x50 */ \ + R(RX_DROP_U_MALFORMED_ACTION) \ + R(RX_DROP_U_UNKNOWN_MCAST_ACTION) \ + R(RX_DROP_U_UNEXPECTED_EXT_FRAME) \ + R(RX_DROP_U_UNHANDLED_MGMT) \ + R(RX_DROP_U_MCAST_DEAUTH) \ + R(RX_DROP_U_UNHANDLED_DEAUTH) \ + R(RX_DROP_U_MCAST_DISASSOC) \ + R(RX_DROP_U_UNHANDLED_DISASSOC) \ + R(RX_DROP_U_UNHANDLED_PREQ) \ + R(RX_DROP_U_UNHANDLED_MGMT_STYPE) \ + R(RX_DROP_U_NO_LINK) \ /* this line for the trailing \ - add before this */ /* having two enums allows for checking ieee80211_rx_result use with sparse */ @@ -85,7 +128,6 @@ enum ___mac80211_drop_reason { enum mac80211_drop_reason { RX_CONTINUE = (__force ieee80211_rx_result)___RX_CONTINUE, RX_QUEUED = (__force ieee80211_rx_result)___RX_QUEUED, - RX_DROP = (__force ieee80211_rx_result)___RX_DROP_UNUSABLE, #define DEF(x) x = (__force ieee80211_rx_result)___ ## x, MAC80211_DROP_REASONS_UNUSABLE(DEF) #undef DEF diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 13b7432d732f8..160ccb0bdf27d 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -6,7 +6,7 @@ * Copyright 2007-2010 Johannes Berg * Copyright 2013-2014 Intel Mobile Communications GmbH * Copyright(c) 2015 - 2017 Intel Deutschland GmbH - * Copyright (C) 2018-2025 Intel Corporation + * Copyright (C) 2018-2026 Intel Corporation */ #include @@ -1056,14 +1056,14 @@ static ieee80211_rx_result ieee80211_rx_mesh_check(struct ieee80211_rx_data *rx) if (is_multicast_ether_addr(hdr->addr1)) { if (ieee80211_has_tods(hdr->frame_control) || !ieee80211_has_fromds(hdr->frame_control)) - return RX_DROP; + return RX_DROP_U_MESH_DS_BITS; if (ether_addr_equal(hdr->addr3, dev_addr)) - return RX_DROP; + return RX_DROP_U_MESH_A3_MISMATCH; } else { if (!ieee80211_has_a4(hdr->frame_control)) - return RX_DROP; + return RX_DROP_U_MESH_NO_A4; if (ether_addr_equal(hdr->addr4, dev_addr)) - return RX_DROP; + return RX_DROP_U_MESH_A4_MISMATCH; } } @@ -1075,20 +1075,20 @@ static ieee80211_rx_result ieee80211_rx_mesh_check(struct ieee80211_rx_data *rx) struct ieee80211_mgmt *mgmt; if (!ieee80211_is_mgmt(hdr->frame_control)) - return RX_DROP; + return RX_DROP_U_MESH_UNEXP_DATA; if (ieee80211_is_action(hdr->frame_control)) { u8 category; /* make sure category field is present */ if (rx->skb->len < IEEE80211_MIN_ACTION_SIZE) - return RX_DROP; + return RX_DROP_U_RUNT_ACTION; mgmt = (struct ieee80211_mgmt *)hdr; category = mgmt->u.action.category; if (category != WLAN_CATEGORY_MESH_ACTION && category != WLAN_CATEGORY_SELF_PROTECTED) - return RX_DROP; + return RX_DROP_U_MESH_WRONG_ACTION; return RX_CONTINUE; } @@ -1098,7 +1098,7 @@ static ieee80211_rx_result ieee80211_rx_mesh_check(struct ieee80211_rx_data *rx) ieee80211_is_auth(hdr->frame_control)) return RX_CONTINUE; - return RX_DROP; + return RX_DROP_U_MESH_UNEXP_MGMT; } return RX_CONTINUE; @@ -1524,7 +1524,7 @@ ieee80211_rx_h_check(struct ieee80211_rx_data *rx) hdrlen = ieee80211_hdrlen(hdr->frame_control); if (rx->skb->len < hdrlen + 8) - return RX_DROP; + return RX_DROP_U_RUNT_DATA; skb_copy_bits(rx->skb, hdrlen + 6, ðertype, 2); if (ethertype == rx->sdata->control_port_protocol) @@ -1534,9 +1534,9 @@ ieee80211_rx_h_check(struct ieee80211_rx_data *rx) if (rx->sdata->vif.type == NL80211_IFTYPE_AP && cfg80211_rx_spurious_frame(rx->sdata->dev, hdr->addr2, rx->link_id, GFP_ATOMIC)) - return RX_DROP_U_SPURIOUS; + return RX_DROP_U_SPURIOUS_NOTIF; - return RX_DROP; + return RX_DROP_U_SPURIOUS; } return RX_CONTINUE; @@ -2027,7 +2027,7 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx) if (rx->link_sta) { if (ieee80211_is_group_privacy_action(skb) && test_sta_flag(rx->sta, WLAN_STA_MFP)) - return RX_DROP; + return RX_DROP_U_UNPROTECTED; rx->key = rcu_dereference(rx->link_sta->gtk[mmie_keyidx]); } @@ -2112,11 +2112,11 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx) if (rx->key) { if (unlikely(rx->key->flags & KEY_FLAG_TAINTED)) - return RX_DROP; + return RX_DROP_U_KEY_TAINTED; /* TODO: add threshold stuff again */ } else { - return RX_DROP; + return RX_DROP_U_UNPROTECTED; } switch (rx->key->conf.cipher) { @@ -2290,7 +2290,7 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx) goto out; if (is_multicast_ether_addr(hdr->addr1)) - return RX_DROP; + return RX_DROP_U_MCAST_FRAGMENT; I802_DEBUG_INC(rx->local->rx_handlers_fragments); @@ -2345,7 +2345,7 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx) rx->seqno_idx, hdr); if (!entry) { I802_DEBUG_INC(rx->local->rx_handlers_drop_defrag); - return RX_DROP; + return RX_DROP_U_DEFRAG_MISMATCH; } /* "The receiver shall discard MSDUs and MMPDUs whose constituent @@ -2867,25 +2867,25 @@ ieee80211_rx_mesh_data(struct ieee80211_sub_if_data *sdata, struct sta_info *sta return RX_CONTINUE; if (!pskb_may_pull(skb, sizeof(*eth) + 6)) - return RX_DROP; + return RX_DROP_U_RUNT_MESH_DATA; mesh_hdr = (struct ieee80211s_hdr *)(skb->data + sizeof(*eth)); mesh_hdrlen = ieee80211_get_mesh_hdrlen(mesh_hdr); if (!pskb_may_pull(skb, sizeof(*eth) + mesh_hdrlen)) - return RX_DROP; + return RX_DROP_U_RUNT_MESH_DATA; eth = (struct ethhdr *)skb->data; multicast = is_multicast_ether_addr(eth->h_dest); mesh_hdr = (struct ieee80211s_hdr *)(eth + 1); if (!mesh_hdr->ttl) - return RX_DROP; + return RX_DROP_U_MESH_NO_TTL; /* frame is in RMC, don't forward */ if (is_multicast_ether_addr(eth->h_dest) && mesh_rmc_check(sdata, eth->h_source, mesh_hdr)) - return RX_DROP; + return RX_DROP_U_MESH_RMC; /* forward packet */ if (sdata->crypto_tx_tailroom_needed_cnt) @@ -2902,7 +2902,7 @@ ieee80211_rx_mesh_data(struct ieee80211_sub_if_data *sdata, struct sta_info *sta /* has_a4 already checked in ieee80211_rx_mesh_check */ proxied_addr = mesh_hdr->eaddr2; else - return RX_DROP; + return RX_DROP_U_MESH_BAD_AE; rcu_read_lock(); mppath = mpp_path_lookup(sdata, proxied_addr); @@ -2934,14 +2934,14 @@ ieee80211_rx_mesh_data(struct ieee80211_sub_if_data *sdata, struct sta_info *sta goto rx_accept; IEEE80211_IFSTA_MESH_CTR_INC(ifmsh, dropped_frames_ttl); - return RX_DROP; + return RX_DROP_U_MESH_TTL_EXPIRED; } if (!ifmsh->mshcfg.dot11MeshForwarding) { if (is_multicast_ether_addr(eth->h_dest)) goto rx_accept; - return RX_DROP; + return RX_DROP_U_MESH_NOT_FORWARDING; } skb_set_queue_mapping(skb, ieee802_1d_to_ac[skb->priority]); @@ -3127,7 +3127,7 @@ ieee80211_rx_h_amsdu(struct ieee80211_rx_data *rx) return RX_CONTINUE; if (unlikely(!ieee80211_is_data_present(fc))) - return RX_DROP; + return RX_DROP_U_AMSDU_WITHOUT_DATA; if (unlikely(ieee80211_has_a4(hdr->frame_control))) { switch (rx->sdata->vif.type) { @@ -3184,7 +3184,7 @@ ieee80211_rx_h_data(struct ieee80211_rx_data *rx) return RX_CONTINUE; if (unlikely(!ieee80211_is_data_present(hdr->frame_control))) - return RX_DROP; + return RX_DROP_U_NULL_DATA; /* Send unexpected-4addr-frame event to hostapd */ if (ieee80211_has_a4(hdr->frame_control) && @@ -3194,7 +3194,7 @@ ieee80211_rx_h_data(struct ieee80211_rx_data *rx) cfg80211_rx_unexpected_4addr_frame( rx->sdata->dev, rx->sta->sta.addr, rx->link_id, GFP_ATOMIC); - return RX_DROP; + return RX_DROP_U_UNEXPECTED_4ADDR; } res = __ieee80211_data_to_8023(rx, &port_control); @@ -3206,7 +3206,7 @@ ieee80211_rx_h_data(struct ieee80211_rx_data *rx) return res; if (!ieee80211_frame_allowed(rx, fc)) - return RX_DROP; + return RX_DROP_U_PORT_CONTROL; /* directly handle TDLS channel switch requests/responses */ if (unlikely(((struct ethhdr *)rx->skb->data)->h_proto == @@ -3271,11 +3271,11 @@ ieee80211_rx_h_ctrl(struct ieee80211_rx_data *rx, struct sk_buff_head *frames) }; if (!rx->sta) - return RX_DROP; + return RX_DROP_U_UNKNOWN_STA; if (skb_copy_bits(skb, offsetof(struct ieee80211_bar, control), &bar_data, sizeof(bar_data))) - return RX_DROP; + return RX_DROP_U_RUNT_BAR; tid = le16_to_cpu(bar_data.control) >> 12; @@ -3287,7 +3287,7 @@ ieee80211_rx_h_ctrl(struct ieee80211_rx_data *rx, struct sk_buff_head *frames) tid_agg_rx = rcu_dereference(rx->sta->ampdu_mlme.tid_rx[tid]); if (!tid_agg_rx) - return RX_DROP; + return RX_DROP_U_BAR_OUTSIDE_SESSION; start_seq_num = le16_to_cpu(bar_data.start_seq_num) >> 4; event.u.ba.tid = tid; @@ -3311,7 +3311,7 @@ ieee80211_rx_h_ctrl(struct ieee80211_rx_data *rx, struct sk_buff_head *frames) return RX_QUEUED; } - return RX_DROP; + return RX_DROP_U_CTRL_FRAME; } static void ieee80211_process_sa_query_req(struct ieee80211_sub_if_data *sdata, @@ -3420,10 +3420,10 @@ ieee80211_rx_h_mgmt_check(struct ieee80211_rx_data *rx) * and unknown (reserved) frames are useless. */ if (rx->skb->len < 24) - return RX_DROP; + return RX_DROP_U_RUNT_MGMT; if (!ieee80211_is_mgmt(mgmt->frame_control)) - return RX_DROP; + return RX_DROP_U_EXPECTED_MGMT; /* drop too small action frames */ if (ieee80211_is_action(mgmt->frame_control) && @@ -3433,7 +3433,7 @@ ieee80211_rx_h_mgmt_check(struct ieee80211_rx_data *rx) /* Drop non-broadcast Beacon frames */ if (ieee80211_is_beacon(mgmt->frame_control) && !is_broadcast_ether_addr(mgmt->da)) - return RX_DROP; + return RX_DROP_U_NONBCAST_BEACON; if (rx->sdata->vif.type == NL80211_IFTYPE_AP && ieee80211_is_beacon(mgmt->frame_control) && @@ -3962,10 +3962,10 @@ ieee80211_rx_h_action_return(struct ieee80211_rx_data *rx) if (!(status->rx_flags & IEEE80211_RX_MALFORMED_ACTION_FRM) && (sdata->vif.type == NL80211_IFTYPE_AP || sdata->vif.type == NL80211_IFTYPE_AP_VLAN)) - return RX_DROP; + return RX_DROP_U_MALFORMED_ACTION; if (is_multicast_ether_addr(mgmt->da)) - return RX_DROP; + return RX_DROP_U_UNKNOWN_MCAST_ACTION; /* do not return rejected action frames */ if (mgmt->u.action.category & 0x80) @@ -4010,7 +4010,7 @@ ieee80211_rx_h_ext(struct ieee80211_rx_data *rx) return RX_CONTINUE; if (sdata->vif.type != NL80211_IFTYPE_STATION) - return RX_DROP; + return RX_DROP_U_UNEXPECTED_EXT_FRAME; /* for now only beacons are ext, so queue them */ ieee80211_queue_skb_to_iface(sdata, rx->link_id, rx->sta, rx->skb); @@ -4031,7 +4031,7 @@ ieee80211_rx_h_mgmt(struct ieee80211_rx_data *rx) sdata->vif.type != NL80211_IFTYPE_ADHOC && sdata->vif.type != NL80211_IFTYPE_OCB && sdata->vif.type != NL80211_IFTYPE_STATION) - return RX_DROP; + return RX_DROP_U_UNHANDLED_MGMT; switch (stype) { case cpu_to_le16(IEEE80211_STYPE_AUTH): @@ -4042,32 +4042,32 @@ ieee80211_rx_h_mgmt(struct ieee80211_rx_data *rx) case cpu_to_le16(IEEE80211_STYPE_DEAUTH): if (is_multicast_ether_addr(mgmt->da) && !is_broadcast_ether_addr(mgmt->da)) - return RX_DROP; + return RX_DROP_U_MCAST_DEAUTH; /* process only for station/IBSS */ if (sdata->vif.type != NL80211_IFTYPE_STATION && sdata->vif.type != NL80211_IFTYPE_ADHOC) - return RX_DROP; + return RX_DROP_U_UNHANDLED_DEAUTH; break; case cpu_to_le16(IEEE80211_STYPE_ASSOC_RESP): case cpu_to_le16(IEEE80211_STYPE_REASSOC_RESP): case cpu_to_le16(IEEE80211_STYPE_DISASSOC): if (is_multicast_ether_addr(mgmt->da) && !is_broadcast_ether_addr(mgmt->da)) - return RX_DROP; + return RX_DROP_U_MCAST_DISASSOC; /* process only for station */ if (sdata->vif.type != NL80211_IFTYPE_STATION) - return RX_DROP; + return RX_DROP_U_UNHANDLED_DISASSOC; break; case cpu_to_le16(IEEE80211_STYPE_PROBE_REQ): /* process only for ibss and mesh */ if (sdata->vif.type != NL80211_IFTYPE_ADHOC && sdata->vif.type != NL80211_IFTYPE_MESH_POINT) - return RX_DROP; + return RX_DROP_U_UNHANDLED_PREQ; break; default: - return RX_DROP; + return RX_DROP_U_UNHANDLED_MGMT_STYPE; } ieee80211_queue_skb_to_iface(sdata, rx->link_id, rx->sta, rx->skb); @@ -4095,7 +4095,7 @@ static void ieee80211_rx_handlers_result(struct ieee80211_rx_data *rx, static void ieee80211_rx_handlers(struct ieee80211_rx_data *rx, struct sk_buff_head *frames) { - ieee80211_rx_result res = RX_DROP; + ieee80211_rx_result res; struct sk_buff *skb; #define CALL_RXH(rxh) \ @@ -4121,8 +4121,10 @@ static void ieee80211_rx_handlers(struct ieee80211_rx_data *rx, */ rx->skb = skb; - if (WARN_ON_ONCE(!rx->link)) + if (WARN_ON_ONCE(!rx->link)) { + res = RX_DROP_U_NO_LINK; goto rxh_next; + } CALL_RXH(ieee80211_rx_h_check_more_data); CALL_RXH(ieee80211_rx_h_uapsd_and_pspoll); @@ -4159,7 +4161,7 @@ static void ieee80211_rx_handlers(struct ieee80211_rx_data *rx, static void ieee80211_invoke_rx_handlers(struct ieee80211_rx_data *rx) { struct sk_buff_head reorder_release; - ieee80211_rx_result res = RX_DROP; + ieee80211_rx_result res; __skb_queue_head_init(&reorder_release); -- 2.53.0