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| author | Felix Fietkau <nbd@openwrt.org> | 2011-09-09 07:20:44 +0000 |
|---|---|---|
| committer | Felix Fietkau <nbd@openwrt.org> | 2011-09-09 07:20:44 +0000 |
| commit | b0c42408191753bb3dbe0f8a7886b07c2df47173 (patch) | |
| tree | 263e2a3da068e2f4a822fcfca5dafad5d15e0d59 | |
| parent | aa1ec66431ec1916035d9cc798a5deb59df90f28 (diff) | |
| download | upstream-b0c42408191753bb3dbe0f8a7886b07c2df47173.tar.gz upstream-b0c42408191753bb3dbe0f8a7886b07c2df47173.tar.bz2 upstream-b0c42408191753bb3dbe0f8a7886b07c2df47173.zip | |
ath9k: fix an rx path race condition that might be the cause of the "ath: DMA failed to stop in 10 ms" logspam as well as various connection stability issues
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@28202 3c298f89-4303-0410-b956-a3cf2f4a3e73
| -rw-r--r-- | package/mac80211/patches/586-ath9k_fix_rx_flush.patch | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/package/mac80211/patches/586-ath9k_fix_rx_flush.patch b/package/mac80211/patches/586-ath9k_fix_rx_flush.patch new file mode 100644 index 0000000000..1629f5f737 --- /dev/null +++ b/package/mac80211/patches/586-ath9k_fix_rx_flush.patch @@ -0,0 +1,34 @@ +--- a/drivers/net/wireless/ath/ath9k/recv.c ++++ b/drivers/net/wireless/ath/ath9k/recv.c +@@ -1845,7 +1845,7 @@ int ath_rx_tasklet(struct ath_softc *sc, + * If we're asked to flush receive queue, directly + * chain it back at the queue without processing it. + */ +- if (flush) ++ if (sc->sc_flags & SC_OP_RXFLUSH) + goto requeue_drop_frag; + + retval = ath9k_rx_skb_preprocess(common, hw, hdr, &rs, +@@ -1973,7 +1973,8 @@ requeue: + } else { + list_move_tail(&bf->list, &sc->rx.rxbuf); + ath_rx_buf_link(sc, bf); +- ath9k_hw_rxena(ah); ++ if (!flush) ++ ath9k_hw_rxena(ah); + } + } while (1); + +--- a/drivers/net/wireless/ath/ath9k/main.c ++++ b/drivers/net/wireless/ath/ath9k/main.c +@@ -246,8 +246,8 @@ static bool ath_prepare_reset(struct ath + + if (!flush) { + if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) +- ath_rx_tasklet(sc, 0, true); +- ath_rx_tasklet(sc, 0, false); ++ ath_rx_tasklet(sc, 1, true); ++ ath_rx_tasklet(sc, 1, false); + } else { + ath_flushrecv(sc); + } |