diff options
| author | nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2008-04-20 22:01:27 +0000 |
|---|---|---|
| committer | nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2008-04-20 22:01:27 +0000 |
| commit | 29e18fb10f21b6a54dad5ee5e474d4b0635243b9 (patch) | |
| tree | 9a192c9b75279ed3385651d8644424bd9580beef /package/madwifi | |
| parent | deb3135ef2d423390bc54684f31ad8cdaef08891 (diff) | |
fix a some txq races (merge from madwifi-trunk)
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@10895 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'package/madwifi')
| -rw-r--r-- | package/madwifi/patches/360-txqueue_races.patch | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/package/madwifi/patches/360-txqueue_races.patch b/package/madwifi/patches/360-txqueue_races.patch new file mode 100644 index 000000000..be6b488d4 --- /dev/null +++ b/package/madwifi/patches/360-txqueue_races.patch @@ -0,0 +1,38 @@ +Merged from madwifi trunk r3551, r3552 + +Index: madwifi-trunk-r3314/ath/if_ath.c +=================================================================== +--- madwifi-trunk-r3314.orig/ath/if_ath.c 2008-04-20 23:18:52.000000000 +0200 ++++ madwifi-trunk-r3314/ath/if_ath.c 2008-04-20 23:20:36.000000000 +0200 +@@ -8245,6 +8245,17 @@ + goto bf_fail; + } + ++ /* We make sure we don't remove the TX descriptor on ++ * which the HW is pointing since it contains the ++ * ds_link field, except if this is the last TX ++ * descriptor in the queue */ ++ ++ if ((txq->axq_depth > 1) && ++ (bf->bf_daddr == ath_hal_gettxbuf(ah, txq->axq_qnum))) { ++ ATH_TXQ_UNLOCK_IRQ_EARLY(txq); ++ goto bf_fail; ++ } ++ + ATH_TXQ_REMOVE_HEAD(txq, bf_list); + ATH_TXQ_UNLOCK_IRQ(txq); + +Index: madwifi-trunk-r3314/ath/if_athvar.h +=================================================================== +--- madwifi-trunk-r3314.orig/ath/if_athvar.h 2008-04-20 23:18:48.000000000 +0200 ++++ madwifi-trunk-r3314/ath/if_athvar.h 2008-04-20 23:21:12.000000000 +0200 +@@ -586,7 +586,8 @@ + } while (0) + #define ATH_TXQ_REMOVE_HEAD(_tq, _field) do { \ + STAILQ_REMOVE_HEAD(&(_tq)->axq_q, _field); \ +- (_tq)->axq_depth--; \ ++ if (--(_tq)->axq_depth <= 0) \ ++ (_tq)->axq_link = NULL; \ + } while (0) + /* move buffers from MCASTQ to CABQ */ + #define ATH_TXQ_MOVE_MCASTQ(_tqs,_tqd) do { \ |