From 9214ad7f9a0bfbfb2c204305e7391ce8b7fe4d29 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Tue, 6 Nov 2012 19:18:13 +0100 Subject: [PATCH] mac80211: call driver method when restart completes When the driver requests a restart (reconfiguration) it gets all the normal method calls, but can't really tell why they're happening. Call a new restart_complete op in the driver when the restart completes, so it could keep its own state about the restart and clear it there. Signed-off-by: Johannes Berg --- include/net/mac80211.h | 6 ++++++ net/mac80211/driver-ops.h | 10 ++++++++++ net/mac80211/trace.h | 5 +++++ net/mac80211/util.c | 4 +++- 4 files changed, 24 insertions(+), 1 deletion(-) diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 23803ad..e1d8309 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -2400,6 +2400,10 @@ enum ieee80211_rate_control_changed { * just "paused" for scanning/ROC, which is indicated by the beacon being * disabled/enabled via @bss_info_changed. * @stop_ap: Stop operation on the AP interface. + * + * @restart_complete: Called after a call to ieee80211_restart_hw(), when the + * reconfiguration has completed. This can help the driver implement the + * reconfiguration step. This callback may sleep. */ struct ieee80211_ops { void (*tx)(struct ieee80211_hw *hw, @@ -2561,6 +2565,8 @@ struct ieee80211_ops { void (*unassign_vif_chanctx)(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_chanctx_conf *ctx); + + void (*restart_complete)(struct ieee80211_hw *hw); }; /** diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h index 1701ad7..4dc2577 100644 --- a/net/mac80211/driver-ops.h +++ b/net/mac80211/driver-ops.h @@ -961,4 +961,14 @@ static inline void drv_stop_ap(struct ieee80211_local *local, trace_drv_return_void(local); } +static inline void drv_restart_complete(struct ieee80211_local *local) +{ + might_sleep(); + + trace_drv_restart_complete(local); + if (local->ops->restart_complete) + local->ops->restart_complete(&local->hw); + trace_drv_return_void(local); +} + #endif /* __MAC80211_DRIVER_OPS */ diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h index 06a69eb..758836c 100644 --- a/net/mac80211/trace.h +++ b/net/mac80211/trace.h @@ -1411,6 +1411,11 @@ DEFINE_EVENT(local_sdata_evt, drv_stop_ap, TP_ARGS(local, sdata) ); +DEFINE_EVENT(local_only_evt, drv_restart_complete, + TP_PROTO(struct ieee80211_local *local), + TP_ARGS(local) +); + /* * Tracing for API calls that drivers call. */ diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 1a511af..84858a1 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -1599,8 +1599,10 @@ int ieee80211_reconfig(struct ieee80211_local *local) * If this is for hw restart things are still running. * We may want to change that later, however. */ - if (!local->suspended) + if (!local->suspended) { + drv_restart_complete(local); return 0; + } #ifdef CONFIG_PM /* first set suspended false, then resuming */ -- 2.7.4