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Date: Wed, 20 Dec 2006 16:11:58 +0800 From: Zhu Yi <yi.zhu@...el.com> To: netdev@...r.kernel.org, "John W. Linville" <linville@...driver.com> Subject: [PATCH] ipw2100: Fix dropping fragmented small packet problem The rx_data.header struct is ieee80211_hdr_4addr. If a wireless frame uses ieee80211_hdr_3addr header and is less than 6 bytes, it will be discarded. This is not likely going to happen for normal packets (since there is TCP, IP headers). But if fragmentation is used, there will be such small trailing packets. And they will be lost for ever. Signed-off-by: Zhu Yi <yi.zhu@...el.com> diff -urp ipw2100-1.2.1/ipw2100.c ipw2100-1.2.1-frag/ipw2100.c --- ipw2100-1.2.1/ipw2100.c 2006-02-22 02:46:17.000000000 +0800 +++ ipw2100-1.2.1-frag/ipw2100.c 2006-12-15 17:16:15.000000000 +0800 @@ -2658,7 +2658,7 @@ static void __ipw2100_rx_process(struct break; } #endif - if (stats.len < sizeof(u->rx_data.header)) + if (stats.len < sizeof(struct ieee80211_hdr_3addr)) break; switch (WLAN_FC_GET_TYPE(u->rx_data.header.frame_ctl)) { case IEEE80211_FTYPE_MGMT: - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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