From 98798f4875b7149db4eb7d0a126fc6dcd9637821 Mon Sep 17 00:00:00 2001 From: Michael Wu Date: Wed, 10 Oct 2007 17:28:59 -0400 Subject: [PATCH] [PATCH] rtl8187: Fix more frag bit checking, rts duration calc The wrong pointer is passed to ieee80211_get_morefrag. Fix this. While we're at it, reorder things so they look better and the rts duration calculation is done with the right length. Thanks to Christoph Hellwig for finding the ieee80211_get_morefrag issue. Signed-off-by: Michael Wu Signed-off-by: John W. Linville --- drivers/net/wireless/rtl8187_dev.c | 31 ++++++++++++++++--------------- 1 file changed, 16 insertions(+), 15 deletions(-) diff --git a/drivers/net/wireless/rtl8187_dev.c b/drivers/net/wireless/rtl8187_dev.c index 0ef887d..805b2af 100644 --- a/drivers/net/wireless/rtl8187_dev.c +++ b/drivers/net/wireless/rtl8187_dev.c @@ -131,7 +131,8 @@ static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb, struct rtl8187_tx_hdr *hdr; struct rtl8187_tx_info *info; struct urb *urb; - u32 tmp; + __le16 rts_dur = 0; + u32 flags; urb = usb_alloc_urb(0, GFP_ATOMIC); if (!urb) { @@ -139,24 +140,24 @@ static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb, return 0; } - hdr = (struct rtl8187_tx_hdr *)skb_push(skb, sizeof(*hdr)); - tmp = skb->len - sizeof(*hdr); - tmp |= RTL8187_TX_FLAG_NO_ENCRYPT; - tmp |= control->rts_cts_rate << 19; - tmp |= control->tx_rate << 24; - if (ieee80211_get_morefrag((struct ieee80211_hdr *)skb)) - tmp |= RTL8187_TX_FLAG_MORE_FRAG; + flags = skb->len; + flags |= RTL8187_TX_FLAG_NO_ENCRYPT; + flags |= control->rts_cts_rate << 19; + flags |= control->tx_rate << 24; + if (ieee80211_get_morefrag((struct ieee80211_hdr *)skb->data)) + flags |= RTL8187_TX_FLAG_MORE_FRAG; if (control->flags & IEEE80211_TXCTL_USE_RTS_CTS) { - tmp |= RTL8187_TX_FLAG_RTS; - hdr->rts_duration = - ieee80211_rts_duration(dev, priv->if_id, skb->len, control); + flags |= RTL8187_TX_FLAG_RTS; + rts_dur = ieee80211_rts_duration(dev, priv->if_id, skb->len, control); } if (control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT) - tmp |= RTL8187_TX_FLAG_CTS; - hdr->flags = cpu_to_le32(tmp); + flags |= RTL8187_TX_FLAG_CTS; + + hdr = (struct rtl8187_tx_hdr *)skb_push(skb, sizeof(*hdr)); + hdr->flags = cpu_to_le32(flags); hdr->len = 0; - tmp = control->retry_limit << 8; - hdr->retry = cpu_to_le32(tmp); + hdr->rts_duration = rts_dur; + hdr->retry = cpu_to_le32(control->retry_limit << 8); info = (struct rtl8187_tx_info *)skb->cb; info->control = kmemdup(control, sizeof(*control), GFP_ATOMIC); -- 2.7.4