mirror of https://github.com/hak5/openwrt.git
79 lines
2.1 KiB
Diff
79 lines
2.1 KiB
Diff
From: John Crispin <john@phrozen.org>
|
|
Date: Tue, 29 Oct 2019 10:13:02 +0100
|
|
Subject: [PATCH] mac80211: move store skb ack code to its own function
|
|
|
|
This patch moves the code handling SKBTX_WIFI_STATUS inside the TX path
|
|
into an extra function. This allows us to reuse it inside the 802.11 encap
|
|
offloading datapath.
|
|
|
|
Signed-off-by: John Crispin <john@phrozen.org>
|
|
Link: https://lore.kernel.org/r/20191029091304.7330-2-john@phrozen.org
|
|
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
|
|
---
|
|
|
|
--- a/net/mac80211/tx.c
|
|
+++ b/net/mac80211/tx.c
|
|
@@ -2430,6 +2430,33 @@ static int ieee80211_lookup_ra_sta(struc
|
|
return 0;
|
|
}
|
|
|
|
+static int ieee80211_store_ack_skb(struct ieee80211_local *local,
|
|
+ struct sk_buff *skb,
|
|
+ u32 *info_flags)
|
|
+{
|
|
+ struct sk_buff *ack_skb = skb_clone_sk(skb);
|
|
+ u16 info_id = 0;
|
|
+
|
|
+ if (ack_skb) {
|
|
+ unsigned long flags;
|
|
+ int id;
|
|
+
|
|
+ spin_lock_irqsave(&local->ack_status_lock, flags);
|
|
+ id = idr_alloc(&local->ack_status_frames, ack_skb,
|
|
+ 1, 0x10000, GFP_ATOMIC);
|
|
+ spin_unlock_irqrestore(&local->ack_status_lock, flags);
|
|
+
|
|
+ if (id >= 0) {
|
|
+ info_id = id;
|
|
+ *info_flags |= IEEE80211_TX_CTL_REQ_TX_STATUS;
|
|
+ } else {
|
|
+ kfree_skb(ack_skb);
|
|
+ }
|
|
+ }
|
|
+
|
|
+ return info_id;
|
|
+}
|
|
+
|
|
/**
|
|
* ieee80211_build_hdr - build 802.11 header in the given frame
|
|
* @sdata: virtual interface to build the header for
|
|
@@ -2723,26 +2750,8 @@ static struct sk_buff *ieee80211_build_h
|
|
}
|
|
|
|
if (unlikely(!multicast && skb->sk &&
|
|
- skb_shinfo(skb)->tx_flags & SKBTX_WIFI_STATUS)) {
|
|
- struct sk_buff *ack_skb = skb_clone_sk(skb);
|
|
-
|
|
- if (ack_skb) {
|
|
- unsigned long flags;
|
|
- int id;
|
|
-
|
|
- spin_lock_irqsave(&local->ack_status_lock, flags);
|
|
- id = idr_alloc(&local->ack_status_frames, ack_skb,
|
|
- 1, 0x10000, GFP_ATOMIC);
|
|
- spin_unlock_irqrestore(&local->ack_status_lock, flags);
|
|
-
|
|
- if (id >= 0) {
|
|
- info_id = id;
|
|
- info_flags |= IEEE80211_TX_CTL_REQ_TX_STATUS;
|
|
- } else {
|
|
- kfree_skb(ack_skb);
|
|
- }
|
|
- }
|
|
- }
|
|
+ skb_shinfo(skb)->tx_flags & SKBTX_WIFI_STATUS))
|
|
+ info_id = ieee80211_store_ack_skb(local, skb, &info_flags);
|
|
|
|
/*
|
|
* If the skb is shared we need to obtain our own copy.
|