ath10k: remove extra_tx_headroom

Comment was out-of-date. The headroom is no longer
necessary because HTT Tx fragment list is stored
in dma pool item associated with each sk_buff.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 21931e147fff5cef1a86f447175f5abf499f9faa..9ca22cb3b0abe79a2c3c08fd6c561a7fcebe8aa2 100644 (file)
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -4953,10 +4953,6 @@ int ath10k_mac_register(struct ath10k *ar)
                        IEEE80211_HW_AP_LINK_PS |
                        IEEE80211_HW_SPECTRUM_MGMT;
 
-       /* MSDU can have HTT TX fragment pushed in front. The additional 4
-        * bytes is used for padding/alignment if necessary. */
-       ar->hw->extra_tx_headroom += sizeof(struct htt_data_tx_desc_frag)*2 + 4;
-
        ar->hw->wiphy->features |= NL80211_FEATURE_STATIC_SMPS;
 
        if (ar->ht_cap_info & WMI_HT_CAP_DYNAMIC_SMPS)