From 5c4bc1ce917d93ce8f7dd498fbec6881b3d7743a Mon Sep 17 00:00:00 2001
From: Chaoming Li <chaoming_li@realsil.com.cn>
Date: Wed, 22 Dec 2010 10:56:02 -0600
Subject: [PATCH] rtlwifi: Fix large packet issue
An RX buffer is set to 9100 bytes to receive 8K AMSDU; however, an skb
of this size fails in the kernel.
Signed-off-by: Chaoming Li <chaoming_li@realsil.com.cn>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
drivers/net/wireless/rtlwifi/pci.c | 18 +++++++++++++++---
1 file changed, 15 insertions(+), 3 deletions(-)
diff --git a/drivers/net/wireless/rtlwifi/pci.c b/drivers/net/wireless/rtlwifi/pci.c
index 353e20358885..0fa36aa6701a 100644
--- a/drivers/net/wireless/rtlwifi/pci.c
+++ b/drivers/net/wireless/rtlwifi/pci.c
@@ -612,10 +612,22 @@ static void _rtl_pci_rx_interrupt(struct ieee80211_hw *hw)
num_rx_inperiod++;
}
- if (unlikely(!rtl_action_proc(hw, skb, false)))
+ if (unlikely(!rtl_action_proc(hw, skb,
+ false))) {
dev_kfree_skb_any(skb);
- else
- ieee80211_rx_irqsafe(hw, skb);
+ } else {
+ struct sk_buff *uskb = NULL;
+ u8 *pdata;
+ uskb = dev_alloc_skb(skb->len + 128);
+ memcpy(IEEE80211_SKB_RXCB(uskb),
+ &rx_status,
+ sizeof(rx_status));
+ pdata = (u8 *)skb_put(uskb, skb->len);
+ memcpy(pdata, skb->data, skb->len);
+ dev_kfree_skb_any(skb);
+
+ ieee80211_rx_irqsafe(hw, uskb);
+ }
} else {
dev_kfree_skb_any(skb);
}
--
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