diff options
author | Zhu Yi <yi.zhu@intel.com> | 2010-03-29 16:42:26 +0800 |
---|---|---|
committer | John W. Linville <linville@tuxdriver.com> | 2010-03-31 14:43:58 -0400 |
commit | ecdf94b81237d272b1514b76f27a5d22782bcaa6 (patch) | |
tree | 53487ff42cf5f183faae9b9a8693c60eef8aae7d /drivers/net/wireless/iwlwifi/iwl-agn-lib.c | |
parent | e3cf8b3f7b9eefbe1d39b160726d6e5c2cbb4c5d (diff) | |
download | kernel_samsung_smdk4412-ecdf94b81237d272b1514b76f27a5d22782bcaa6.zip kernel_samsung_smdk4412-ecdf94b81237d272b1514b76f27a5d22782bcaa6.tar.gz kernel_samsung_smdk4412-ecdf94b81237d272b1514b76f27a5d22782bcaa6.tar.bz2 |
iwlwifi: remove skb_linearize for rx frames
Remove skb_linearize() in the iwlwifi drivers since
mac80211 supports paged rx SKBs now.
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-agn-lib.c')
-rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-agn-lib.c | 32 |
1 files changed, 2 insertions, 30 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c index e8e3118..1d2e84c 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c @@ -931,7 +931,6 @@ static void iwlagn_pass_packet_to_mac80211(struct iwl_priv *priv, struct ieee80211_rx_status *stats) { struct sk_buff *skb; - int ret = 0; __le16 fc = hdr->frame_control; /* We only process data packets if the interface is open */ @@ -946,45 +945,18 @@ static void iwlagn_pass_packet_to_mac80211(struct iwl_priv *priv, iwl_set_decrypted_flag(priv, hdr, ampdu_status, stats)) return; - skb = alloc_skb(IWL_LINK_HDR_MAX * 2, GFP_ATOMIC); + skb = dev_alloc_skb(128); if (!skb) { - IWL_ERR(priv, "alloc_skb failed\n"); + IWL_ERR(priv, "dev_alloc_skb failed\n"); return; } - skb_reserve(skb, IWL_LINK_HDR_MAX); skb_add_rx_frag(skb, 0, rxb->page, (void *)hdr - rxb_addr(rxb), len); - /* mac80211 currently doesn't support paged SKB. Convert it to - * linear SKB for management frame and data frame requires - * software decryption or software defragementation. */ - if (ieee80211_is_mgmt(fc) || - ieee80211_has_protected(fc) || - ieee80211_has_morefrags(fc) || - le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG || - (ieee80211_is_data_qos(fc) && - *ieee80211_get_qos_ctl(hdr) & - IEEE80211_QOS_CONTROL_A_MSDU_PRESENT)) - ret = skb_linearize(skb); - else - ret = __pskb_pull_tail(skb, min_t(u16, IWL_LINK_HDR_MAX, len)) ? - 0 : -ENOMEM; - - if (ret) { - kfree_skb(skb); - goto out; - } - - /* - * XXX: We cannot touch the page and its virtual memory (hdr) after - * here. It might have already been freed by the above skb change. - */ - iwl_update_stats(priv, false, fc, len); memcpy(IEEE80211_SKB_RXCB(skb), stats, sizeof(*stats)); ieee80211_rx(priv->hw, skb); - out: priv->alloc_rxb_page--; rxb->page = NULL; } |