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authorZhu Yi <yi.zhu@intel.com>2009-11-06 14:52:45 -0800
committerJohn W. Linville <linville@tuxdriver.com>2009-11-11 15:23:41 -0500
commita3b6bd5bf23c5cd95389e24121da02d2330eaf21 (patch)
tree0f5664317960b5a44621aa7b10acd1d8e92b7c09 /drivers/net/wireless/iwlwifi/iwl-rx.c
parentcf7ff8dfe64c8ca8a71b4fcbac357a3476ed1888 (diff)
iwlwifi: allocate 128 bytes linear buffer for rx skb
Allocate 128 bytes linear buffer for rx skb. The first 64 bytes is reserved for mac80211 usage (for radiotap header expansion, etc). The frame header starts from the second 64 bytes. Cc: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-rx.c')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-rx.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-rx.c b/drivers/net/wireless/iwlwifi/iwl-rx.c
index e5339c9ad13..d2dc7cceb5f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-rx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-rx.c
@@ -937,12 +937,13 @@ static void iwl_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, GFP_ATOMIC);
+ skb = alloc_skb(IWL_LINK_HDR_MAX * 2, GFP_ATOMIC);
if (!skb) {
IWL_ERR(priv, "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