From 34ad2a0b71ab9e6e67199fb0cc4a859b66e7f821 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Tue, 4 May 2010 08:01:58 +0000 Subject: [PATCH] ath9k: fix filtering out multi-descriptor frames, which can cause issues with 11n links because of bogus rx status data SVN-Revision: 21351 --- .../550-ath9k_no_multi_desc_frames.patch | 24 +++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 package/mac80211/patches/550-ath9k_no_multi_desc_frames.patch diff --git a/package/mac80211/patches/550-ath9k_no_multi_desc_frames.patch b/package/mac80211/patches/550-ath9k_no_multi_desc_frames.patch new file mode 100644 index 0000000000..3bc730e32e --- /dev/null +++ b/package/mac80211/patches/550-ath9k_no_multi_desc_frames.patch @@ -0,0 +1,24 @@ +--- a/drivers/net/wireless/ath/ath9k/common.c ++++ b/drivers/net/wireless/ath/ath9k/common.c +@@ -57,13 +57,19 @@ static bool ath9k_rx_accept(struct ath_c + * rs_more indicates chained descriptors which can be used + * to link buffers together for a sort of scatter-gather + * operation. +- * ++ * reject the frame, we don't support scatter-gather yet and ++ * the frame is probably corrupt anyway ++ */ ++ if (rx_stats->rs_more) ++ return false; ++ ++ /* + * The rx_stats->rs_status will not be set until the end of the + * chained descriptors so it can be ignored if rs_more is set. The + * rs_more will be false at the last element of the chained + * descriptors. + */ +- if (!rx_stats->rs_more && rx_stats->rs_status != 0) { ++ if (rx_stats->rs_status != 0) { + if (rx_stats->rs_status & ATH9K_RXERR_CRC) + rxs->flag |= RX_FLAG_FAILED_FCS_CRC; + if (rx_stats->rs_status & ATH9K_RXERR_PHY) -- 2.30.2