@@ -85,6 +85,7 @@ enum ath10k_skb_flags {
ATH10K_SKB_F_NO_HWCRYPT = BIT(0),
ATH10K_SKB_F_DTIM_ZERO = BIT(1),
ATH10K_SKB_F_DELIVER_CAB = BIT(2),
+ ATH10K_SKB_F_MGMT = BIT(3),
};
struct ath10k_skb_cb {
@@ -3689,6 +3689,9 @@ static void ath10k_tx(struct ieee80211_hw *hw,
if (!ath10k_tx_h_use_hwcrypto(vif, skb))
skb_cb->flags |= ATH10K_SKB_F_NO_HWCRYPT;
+ if (ieee80211_is_mgmt(hdr->frame_control))
+ skb_cb->flags |= ATH10K_SKB_F_MGMT;
+
skb_cb->htt.tid = ath10k_tx_h_get_tid(hdr);
skb_cb->vdev_id = ath10k_tx_h_get_vdev_id(ar, vif);
@@ -57,8 +57,6 @@ void ath10k_txrx_tx_unref(struct ath10k_htt *htt,
struct ieee80211_tx_info *info;
struct ath10k_skb_cb *skb_cb;
struct sk_buff *msdu;
- struct ieee80211_hdr *hdr;
- __le16 fc;
bool limit_mgmt_desc = false;
ath10k_dbg(ar, ATH10K_DBG_HTT,
@@ -81,10 +79,9 @@ void ath10k_txrx_tx_unref(struct ath10k_htt *htt,
return;
}
- hdr = (struct ieee80211_hdr *)msdu->data;
- fc = hdr->frame_control;
+ skb_cb = ATH10K_SKB_CB(msdu);
- if (unlikely(ieee80211_is_mgmt(fc)) &&
+ if (unlikely(skb_cb->flags & ATH10K_SKB_F_MGMT) &&
ar->hw_params.max_probe_resp_desc_thres)
limit_mgmt_desc = true;
@@ -94,7 +91,6 @@ void ath10k_txrx_tx_unref(struct ath10k_htt *htt,
wake_up(&htt->empty_tx_wq);
spin_unlock_bh(&htt->tx_lock);
- skb_cb = ATH10K_SKB_CB(msdu);
dma_unmap_single(dev, skb_cb->paddr, msdu->len, DMA_TO_DEVICE);
ath10k_report_offchan_tx(htt->ar, msdu);
Frames are not guaranteed to be 802.11 frames in ath10k_htt_tx() and the tx completion handler. In some cases, like TDLS, they can be Ethernet. Hence checking, e.g. frame_control could yield bogus results and behavior. Fortunately this wasn't a real problem so far because there's no FW/HW combination to encounter this problem. However it is good to fix this in advance. Fixes: 75d85fd9993c ("ath10k: introduce basic tdls functionality") Fixes: eebc67fef3ee ("ath10k: fix pmf for wmi-tlv on qca6174") Fixes: 7b7da0a02192 ("ath10k: drop probe responses when too many are queued") Signed-off-by: Michal Kazior <michal.kazior@tieto.com> --- Notes: v2: * introduced drivers/net/wireless/ath/ath10k/core.h | 1 + drivers/net/wireless/ath/ath10k/mac.c | 3 +++ drivers/net/wireless/ath/ath10k/txrx.c | 8 ++------ 3 files changed, 6 insertions(+), 6 deletions(-)