From 42cecc3465578e442b794851fd8802dcb85a192c Mon Sep 17 00:00:00 2001 From: "John W. Linville" Date: Mon, 19 Sep 2011 15:42:31 -0400 Subject: [PATCH] Revert "ath9k: do not insert padding into tx buffers on AR9380+" This reverts commit 4245d31347bdc99a608dc1d1cfe64e44aa3d1771. --- drivers/net/wireless/ath/ath9k/xmit.c | 56 ++++++++++++----------------------- 1 file changed, 19 insertions(+), 37 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index 2c6aefa..a0cd51f 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -1017,8 +1017,6 @@ static void ath_tx_fill_desc(struct ath_softc *sc, struct ath_buf *bf, while (bf) { struct sk_buff *skb = bf->bf_mpdu; struct ath_frame_info *fi = get_frame_info(skb); - struct ieee80211_hdr *hdr; - int padpos, padsize; info.type = get_hw_packet_type(skb); if (bf->bf_next) @@ -1026,20 +1024,8 @@ static void ath_tx_fill_desc(struct ath_softc *sc, struct ath_buf *bf, else info.link = 0; - if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) { - hdr = (struct ieee80211_hdr *)skb->data; - padpos = ath9k_cmn_padpos(hdr->frame_control); - padsize = padpos & 3; - - info.buf_addr[0] = bf->bf_buf_addr; - info.buf_len[0] = padpos + padsize; - info.buf_addr[1] = info.buf_addr[0] + padpos; - info.buf_len[1] = skb->len - padpos; - } else { - info.buf_addr[0] = bf->bf_buf_addr; - info.buf_len[0] = skb->len; - } - + info.buf_addr[0] = bf->bf_buf_addr; + info.buf_len[0] = skb->len; info.pkt_len = fi->framelen; info.keyix = fi->keyix; info.keytype = fi->keytype; @@ -1892,17 +1878,15 @@ int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb, hdr->seq_ctrl |= cpu_to_le16(sc->tx.seq_no); } - if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)) { - /* Add the padding after the header if this is not already done */ - padpos = ath9k_cmn_padpos(hdr->frame_control); - padsize = padpos & 3; - if (padsize && skb->len > padpos) { - if (skb_headroom(skb) < padsize) - return -ENOMEM; + /* Add the padding after the header if this is not already done */ + padpos = ath9k_cmn_padpos(hdr->frame_control); + padsize = padpos & 3; + if (padsize && skb->len > padpos) { + if (skb_headroom(skb) < padsize) + return -ENOMEM; - skb_push(skb, padsize); - memmove(skb->data, skb->data + padsize, padpos); - } + skb_push(skb, padsize); + memmove(skb->data, skb->data + padsize, padpos); } if ((vif && vif->type != NL80211_IFTYPE_AP && @@ -1952,17 +1936,15 @@ static void ath_tx_complete(struct ath_softc *sc, struct sk_buff *skb, /* Frame was ACKed */ tx_info->flags |= IEEE80211_TX_STAT_ACK; - if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)) { - padpos = ath9k_cmn_padpos(hdr->frame_control); - padsize = padpos & 3; - if (padsize && skb->len>padpos+padsize) { - /* - * Remove MAC header padding before giving the frame back to - * mac80211. - */ - memmove(skb->data + padsize, skb->data, padpos); - skb_pull(skb, padsize); - } + padpos = ath9k_cmn_padpos(hdr->frame_control); + padsize = padpos & 3; + if (padsize && skb->len>padpos+padsize) { + /* + * Remove MAC header padding before giving the frame back to + * mac80211. + */ + memmove(skb->data + padsize, skb->data, padpos); + skb_pull(skb, padsize); } if (sc->ps_flags & PS_WAIT_FOR_TX_ACK) { -- 2.7.4