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79 lines
2.1 KiB
Diff
79 lines
2.1 KiB
Diff
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From: John Crispin <john@phrozen.org>
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Date: Tue, 29 Oct 2019 10:13:02 +0100
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Subject: [PATCH] mac80211: move store skb ack code to its own function
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This patch moves the code handling SKBTX_WIFI_STATUS inside the TX path
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into an extra function. This allows us to reuse it inside the 802.11 encap
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offloading datapath.
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Signed-off-by: John Crispin <john@phrozen.org>
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Link: https://lore.kernel.org/r/20191029091304.7330-2-john@phrozen.org
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Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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---
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--- a/net/mac80211/tx.c
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+++ b/net/mac80211/tx.c
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@@ -2430,6 +2430,33 @@ static int ieee80211_lookup_ra_sta(struc
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return 0;
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}
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+static int ieee80211_store_ack_skb(struct ieee80211_local *local,
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+ struct sk_buff *skb,
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+ u32 *info_flags)
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+{
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+ struct sk_buff *ack_skb = skb_clone_sk(skb);
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+ u16 info_id = 0;
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+
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+ if (ack_skb) {
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+ unsigned long flags;
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+ int id;
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+
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+ spin_lock_irqsave(&local->ack_status_lock, flags);
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+ id = idr_alloc(&local->ack_status_frames, ack_skb,
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+ 1, 0x10000, GFP_ATOMIC);
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+ spin_unlock_irqrestore(&local->ack_status_lock, flags);
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+
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+ if (id >= 0) {
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+ info_id = id;
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+ *info_flags |= IEEE80211_TX_CTL_REQ_TX_STATUS;
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+ } else {
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+ kfree_skb(ack_skb);
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+ }
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+ }
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+
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+ return info_id;
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+}
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+
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/**
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* ieee80211_build_hdr - build 802.11 header in the given frame
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* @sdata: virtual interface to build the header for
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@@ -2723,26 +2750,8 @@ static struct sk_buff *ieee80211_build_h
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}
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if (unlikely(!multicast && skb->sk &&
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- skb_shinfo(skb)->tx_flags & SKBTX_WIFI_STATUS)) {
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- struct sk_buff *ack_skb = skb_clone_sk(skb);
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-
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- if (ack_skb) {
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- unsigned long flags;
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- int id;
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-
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- spin_lock_irqsave(&local->ack_status_lock, flags);
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- id = idr_alloc(&local->ack_status_frames, ack_skb,
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- 1, 0x10000, GFP_ATOMIC);
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- spin_unlock_irqrestore(&local->ack_status_lock, flags);
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-
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- if (id >= 0) {
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- info_id = id;
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- info_flags |= IEEE80211_TX_CTL_REQ_TX_STATUS;
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- } else {
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- kfree_skb(ack_skb);
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- }
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- }
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- }
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+ skb_shinfo(skb)->tx_flags & SKBTX_WIFI_STATUS))
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+ info_id = ieee80211_store_ack_skb(local, skb, &info_flags);
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/*
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* If the skb is shared we need to obtain our own copy.
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