diff options
| author | John Crispin <john@phrozen.org> | 2019-10-29 10:13:02 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2019-11-08 10:18:13 +0100 |
| commit | 5d8983c8c3b5d7ec3326c75814e77fe167911676 (patch) | |
| tree | a9e63f76707a26896ad46723a5edb9b161f2f8f1 /net/mac80211 | |
| parent | 7d13cf1e1d5300e9e0fd5ef110b5abe3854ea90b (diff) | |
| download | linux-stable-5d8983c8c3b5d7ec3326c75814e77fe167911676.tar.gz linux-stable-5d8983c8c3b5d7ec3326c75814e77fe167911676.tar.bz2 linux-stable-5d8983c8c3b5d7ec3326c75814e77fe167911676.zip | |
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>
Diffstat (limited to 'net/mac80211')
| -rw-r--r-- | net/mac80211/tx.c | 49 |
1 files changed, 29 insertions, 20 deletions
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 938c10f7955b..a4c435abe15f 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -2417,6 +2417,33 @@ static int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata, 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 @@ -2710,26 +2737,8 @@ static struct sk_buff *ieee80211_build_hdr(struct ieee80211_sub_if_data *sdata, } 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. |