diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c index 4942faf2bec5..9d89cf072644 100644 --- a/drivers/net/wireless/ath/ath10k/htt_rx.c +++ b/drivers/net/wireless/ath/ath10k/htt_rx.c @@ -1051,9 +1051,11 @@ static void ath10k_htt_rx_h_undecap_nwifi(struct ath10k *ar, const u8 first_hdr[64]) { struct ieee80211_hdr *hdr; + struct htt_rx_desc *rxd; size_t hdr_len; u8 da[ETH_ALEN]; u8 sa[ETH_ALEN]; + int l3_pad_bytes; /* Delivered decapped frame: * [nwifi 802.11 header] <-- replaced with 802.11 hdr @@ -1067,19 +1069,12 @@ static void ath10k_htt_rx_h_undecap_nwifi(struct ath10k *ar, */ /* pull decapped header and copy SA & DA */ - if ((ar->hw_params.hw_4addr_pad == ATH10K_HW_4ADDR_PAD_BEFORE) && - ieee80211_has_a4(((struct ieee80211_hdr *)first_hdr)->frame_control)) { - /* The QCA99X0 4 address mode pad 2 bytes at the - * beginning of MSDU - */ - hdr = (struct ieee80211_hdr *)(msdu->data + 2); - /* The skb length need be extended 2 as the 2 bytes at the tail - * be excluded due to the padding - */ - skb_put(msdu, 2); - } else { - hdr = (struct ieee80211_hdr *)(msdu->data); - } + rxd = (void *)msdu->data - sizeof(*rxd); + + l3_pad_bytes = ath10k_rx_desc_get_l3_pad_bytes(&ar->hw_params, rxd); + skb_put(msdu, l3_pad_bytes); + + hdr = (struct ieee80211_hdr *)(msdu->data + l3_pad_bytes); hdr_len = ath10k_htt_rx_nwifi_hdrlen(ar, hdr); ether_addr_copy(da, ieee80211_get_DA(hdr)); @@ -1146,6 +1141,8 @@ static void ath10k_htt_rx_h_undecap_eth(struct ath10k *ar, void *rfc1042; u8 da[ETH_ALEN]; u8 sa[ETH_ALEN]; + int l3_pad_bytes; + struct htt_rx_desc *rxd; /* Delivered decapped frame: * [eth header] <-- replaced with 802.11 hdr & rfc1042/llc @@ -1156,6 +1153,11 @@ static void ath10k_htt_rx_h_undecap_eth(struct ath10k *ar, if (WARN_ON_ONCE(!rfc1042)) return; + rxd = (void *)msdu->data - sizeof(*rxd); + l3_pad_bytes = ath10k_rx_desc_get_l3_pad_bytes(&ar->hw_params, rxd); + skb_put(msdu, l3_pad_bytes); + skb_pull(msdu, l3_pad_bytes); + /* pull decapped header and copy SA & DA */ eth = (struct ethhdr *)msdu->data; ether_addr_copy(da, eth->h_dest); @@ -1186,6 +1188,8 @@ static void ath10k_htt_rx_h_undecap_snap(struct ath10k *ar, { struct ieee80211_hdr *hdr; size_t hdr_len; + int l3_pad_bytes; + struct htt_rx_desc *rxd; /* Delivered decapped frame: * [amsdu header] <-- replaced with 802.11 hdr @@ -1193,7 +1197,11 @@ static void ath10k_htt_rx_h_undecap_snap(struct ath10k *ar, * [payload] */ - skb_pull(msdu, sizeof(struct amsdu_subframe_hdr)); + rxd = (void *)msdu->data - sizeof(*rxd); + l3_pad_bytes = ath10k_rx_desc_get_l3_pad_bytes(&ar->hw_params, rxd); + + skb_put(msdu, l3_pad_bytes); + skb_pull(msdu, sizeof(struct amsdu_subframe_hdr) + l3_pad_bytes); hdr = (struct ieee80211_hdr *)first_hdr; hdr_len = ieee80211_hdrlen(hdr->frame_control); diff --git a/drivers/net/wireless/ath/ath10k/hw.h b/drivers/net/wireless/ath/ath10k/hw.h index 1b5ea3147f3a..204f88273572 100644 --- a/drivers/net/wireless/ath/ath10k/hw.h +++ b/drivers/net/wireless/ath/ath10k/hw.h @@ -428,6 +428,15 @@ struct ath10k_hw_ops { extern const struct ath10k_hw_ops qca988x_ops; extern const struct ath10k_hw_ops qca99x0_ops; +static inline int +ath10k_rx_desc_get_l3_pad_bytes(struct ath10k_hw_params *hw, + struct htt_rx_desc *rxd) +{ + if (hw->hw_ops->rx_desc_get_l3_pad_bytes) + return hw->hw_ops->rx_desc_get_l3_pad_bytes(rxd); + return 0; +} + /* Target specific defines for MAIN firmware */ #define TARGET_NUM_VDEVS 8 #define TARGET_NUM_PEER_AST 2