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author | Felix Fietkau <nbd@nbd.name> | 2022-01-28 14:32:21 +0100 |
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committer | Felix Fietkau <nbd@nbd.name> | 2022-02-03 15:16:47 +0100 |
commit | 0b5a547ef0310a95467bbf8cce8c3e28a7ab1cfc (patch) | |
tree | 16f0fd833d3b766bc337d138e19e689e0d8c6cac /package/kernel/mac80211/patches/subsys/317-cfg80211-schedule-offchan_cac_abort_wk-in-cfg80211_r.patch | |
parent | 03ea0405a6db0e5144d486a682e97a0be47a47c1 (diff) | |
download | upstream-0b5a547ef0310a95467bbf8cce8c3e28a7ab1cfc.tar.gz upstream-0b5a547ef0310a95467bbf8cce8c3e28a7ab1cfc.tar.bz2 upstream-0b5a547ef0310a95467bbf8cce8c3e28a7ab1cfc.zip |
mac80211: backport support for background radar detection
Will be used in an upcoming mt76 update
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'package/kernel/mac80211/patches/subsys/317-cfg80211-schedule-offchan_cac_abort_wk-in-cfg80211_r.patch')
-rw-r--r-- | package/kernel/mac80211/patches/subsys/317-cfg80211-schedule-offchan_cac_abort_wk-in-cfg80211_r.patch | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/subsys/317-cfg80211-schedule-offchan_cac_abort_wk-in-cfg80211_r.patch b/package/kernel/mac80211/patches/subsys/317-cfg80211-schedule-offchan_cac_abort_wk-in-cfg80211_r.patch new file mode 100644 index 0000000000..df7afefb34 --- /dev/null +++ b/package/kernel/mac80211/patches/subsys/317-cfg80211-schedule-offchan_cac_abort_wk-in-cfg80211_r.patch @@ -0,0 +1,136 @@ +From: Lorenzo Bianconi <lorenzo@kernel.org> +Date: Tue, 16 Nov 2021 12:41:52 +0100 +Subject: [PATCH] cfg80211: schedule offchan_cac_abort_wk in + cfg80211_radar_event + +If necessary schedule offchan_cac_abort_wk work in cfg80211_radar_event +routine adding offchan parameter to cfg80211_radar_event signature. +Rename cfg80211_radar_event in __cfg80211_radar_event and introduce +the two following inline helpers: +- cfg80211_radar_event +- cfg80211_offchan_radar_event +Doing so the drv will not need to run cfg80211_offchan_cac_abort() after +radar detection on the offchannel chain. + +Tested-by: Owen Peng <owen.peng@mediatek.com> +Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> +Link: https://lore.kernel.org/r/3ff583e021e3343a3ced54a7b09b5e184d1880dc.1637062727.git.lorenzo@kernel.org +Signed-off-by: Johannes Berg <johannes.berg@intel.com> +--- + +--- a/include/net/cfg80211.h ++++ b/include/net/cfg80211.h +@@ -7580,15 +7580,33 @@ void cfg80211_cqm_txe_notify(struct net_ + void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp); + + /** +- * cfg80211_radar_event - radar detection event ++ * __cfg80211_radar_event - radar detection event + * @wiphy: the wiphy + * @chandef: chandef for the current channel ++ * @offchan: the radar has been detected on the offchannel chain + * @gfp: context flags + * + * This function is called when a radar is detected on the current chanenl. + */ +-void cfg80211_radar_event(struct wiphy *wiphy, +- struct cfg80211_chan_def *chandef, gfp_t gfp); ++void __cfg80211_radar_event(struct wiphy *wiphy, ++ struct cfg80211_chan_def *chandef, ++ bool offchan, gfp_t gfp); ++ ++static inline void ++cfg80211_radar_event(struct wiphy *wiphy, ++ struct cfg80211_chan_def *chandef, ++ gfp_t gfp) ++{ ++ __cfg80211_radar_event(wiphy, chandef, false, gfp); ++} ++ ++static inline void ++cfg80211_offchan_radar_event(struct wiphy *wiphy, ++ struct cfg80211_chan_def *chandef, ++ gfp_t gfp) ++{ ++ __cfg80211_radar_event(wiphy, chandef, true, gfp); ++} + + /** + * cfg80211_sta_opmode_change_notify - STA's ht/vht operation mode change event +--- a/net/wireless/mlme.c ++++ b/net/wireless/mlme.c +@@ -905,13 +905,13 @@ void cfg80211_dfs_channels_update_work(s + } + + +-void cfg80211_radar_event(struct wiphy *wiphy, +- struct cfg80211_chan_def *chandef, +- gfp_t gfp) ++void __cfg80211_radar_event(struct wiphy *wiphy, ++ struct cfg80211_chan_def *chandef, ++ bool offchan, gfp_t gfp) + { + struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); + +- trace_cfg80211_radar_event(wiphy, chandef); ++ trace_cfg80211_radar_event(wiphy, chandef, offchan); + + /* only set the chandef supplied channel to unavailable, in + * case the radar is detected on only one of multiple channels +@@ -919,6 +919,9 @@ void cfg80211_radar_event(struct wiphy * + */ + cfg80211_set_dfs_state(wiphy, chandef, NL80211_DFS_UNAVAILABLE); + ++ if (offchan) ++ queue_work(cfg80211_wq, &rdev->offchan_cac_abort_wk); ++ + cfg80211_sched_dfs_chan_update(rdev); + + nl80211_radar_notify(rdev, chandef, NL80211_RADAR_DETECTED, NULL, gfp); +@@ -926,7 +929,7 @@ void cfg80211_radar_event(struct wiphy * + memcpy(&rdev->radar_chandef, chandef, sizeof(struct cfg80211_chan_def)); + queue_work(cfg80211_wq, &rdev->propagate_radar_detect_wk); + } +-EXPORT_SYMBOL(cfg80211_radar_event); ++EXPORT_SYMBOL(__cfg80211_radar_event); + + void cfg80211_cac_event(struct net_device *netdev, + const struct cfg80211_chan_def *chandef, +@@ -998,7 +1001,8 @@ __cfg80211_offchan_cac_event(struct cfg8 + rdev->offchan_radar_wdev = NULL; + break; + case NL80211_RADAR_CAC_ABORTED: +- cancel_delayed_work(&rdev->offchan_cac_done_wk); ++ if (!cancel_delayed_work(&rdev->offchan_cac_done_wk)) ++ return; + wdev = rdev->offchan_radar_wdev; + rdev->offchan_radar_wdev = NULL; + break; +--- a/net/wireless/trace.h ++++ b/net/wireless/trace.h +@@ -3022,18 +3022,21 @@ TRACE_EVENT(cfg80211_ch_switch_started_n + ); + + TRACE_EVENT(cfg80211_radar_event, +- TP_PROTO(struct wiphy *wiphy, struct cfg80211_chan_def *chandef), +- TP_ARGS(wiphy, chandef), ++ TP_PROTO(struct wiphy *wiphy, struct cfg80211_chan_def *chandef, ++ bool offchan), ++ TP_ARGS(wiphy, chandef, offchan), + TP_STRUCT__entry( + WIPHY_ENTRY + CHAN_DEF_ENTRY ++ __field(bool, offchan) + ), + TP_fast_assign( + WIPHY_ASSIGN; + CHAN_DEF_ASSIGN(chandef); ++ __entry->offchan = offchan; + ), +- TP_printk(WIPHY_PR_FMT ", " CHAN_DEF_PR_FMT, +- WIPHY_PR_ARG, CHAN_DEF_PR_ARG) ++ TP_printk(WIPHY_PR_FMT ", " CHAN_DEF_PR_FMT ", offchan %d", ++ WIPHY_PR_ARG, CHAN_DEF_PR_ARG, __entry->offchan) + ); + + TRACE_EVENT(cfg80211_cac_event, |