From 5db25290b77b4efcf26c2b25f288ca3f13ff2fc5 Mon Sep 17 00:00:00 2001 From: Benjamin Berg Date: Fri, 16 Jun 2023 09:54:00 +0300 Subject: [PATCH] wifi: cfg80211: add inform_bss op to update BSS This new function is called from within the inform_bss(_frame)_data functions in order for the driver to update data that it is tracking. Signed-off-by: Benjamin Berg Signed-off-by: Gregory Greenman Link: https://lore.kernel.org/r/20230616094949.8d7781b0f965.I80041183072b75c081996a1a5a230b34aff5c668@changeid Signed-off-by: Johannes Berg --- include/net/cfg80211.h | 13 +++++++++++++ net/wireless/rdev-ops.h | 12 ++++++++++++ net/wireless/scan.c | 4 ++++ net/wireless/trace.h | 17 +++++++++++++++++ 4 files changed, 46 insertions(+) diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 3ca581845206..e912b7cd3093 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -2720,6 +2720,7 @@ enum cfg80211_signal_type { * the BSS that requested the scan in which the beacon/probe was received. * @chains: bitmask for filled values in @chain_signal. * @chain_signal: per-chain signal strength of last received BSS in dBm. + * @drv_data: Data to be passed through to @inform_bss */ struct cfg80211_inform_bss { struct ieee80211_channel *chan; @@ -2730,6 +2731,8 @@ struct cfg80211_inform_bss { u8 parent_bssid[ETH_ALEN] __aligned(2); u8 chains; s8 chain_signal[IEEE80211_MAX_CHAINS]; + + void *drv_data; }; /** @@ -4101,6 +4104,13 @@ struct mgmt_frame_regs { * * @change_bss: Modify parameters for a given BSS. * + * @inform_bss: Called by cfg80211 while being informed about new BSS data + * for every BSS found within the reported data or frame. This is called + * from within the cfg8011 inform_bss handlers while holding the bss_lock. + * The data parameter is passed through from drv_data inside + * struct cfg80211_inform_bss. + * The new IE data for the BSS is explicitly passed. + * * @set_txq_params: Set TX queue parameters * * @libertas_set_mesh_channel: Only for backward compatibility for libertas, @@ -4488,6 +4498,9 @@ struct cfg80211_ops { int (*change_bss)(struct wiphy *wiphy, struct net_device *dev, struct bss_parameters *params); + void (*inform_bss)(struct wiphy *wiphy, struct cfg80211_bss *bss, + const struct cfg80211_bss_ies *ies, void *data); + int (*set_txq_params)(struct wiphy *wiphy, struct net_device *dev, struct ieee80211_txq_params *params); diff --git a/net/wireless/rdev-ops.h b/net/wireless/rdev-ops.h index f8c310849438..90bb7ac4b930 100644 --- a/net/wireless/rdev-ops.h +++ b/net/wireless/rdev-ops.h @@ -407,6 +407,18 @@ static inline int rdev_change_bss(struct cfg80211_registered_device *rdev, return ret; } +static inline void rdev_inform_bss(struct cfg80211_registered_device *rdev, + struct cfg80211_bss *bss, + const struct cfg80211_bss_ies *ies, + void *drv_data) + +{ + trace_rdev_inform_bss(&rdev->wiphy, bss); + if (rdev->ops->inform_bss) + rdev->ops->inform_bss(&rdev->wiphy, bss, ies, drv_data); + trace_rdev_return_void(&rdev->wiphy); +} + static inline int rdev_set_txq_params(struct cfg80211_registered_device *rdev, struct net_device *dev, struct ieee80211_txq_params *params) diff --git a/net/wireless/scan.c b/net/wireless/scan.c index 8984f74da891..d9abbf123ad1 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -2027,6 +2027,8 @@ cfg80211_inform_single_bss_data(struct wiphy *wiphy, if (!res) goto drop; + rdev_inform_bss(rdev, &res->pub, ies, data->drv_data); + if (non_tx_data) { /* this is a nontransmitting bss, we need to add it to * transmitting bss' list if it is not there @@ -2502,6 +2504,8 @@ cfg80211_inform_single_bss_frame_data(struct wiphy *wiphy, if (!res) goto drop; + rdev_inform_bss(rdev, &res->pub, ies, data->drv_data); + spin_unlock_bh(&rdev->bss_lock); trace_cfg80211_return_bss(&res->pub); diff --git a/net/wireless/trace.h b/net/wireless/trace.h index 73a4f8f57438..e63990b81249 100644 --- a/net/wireless/trace.h +++ b/net/wireless/trace.h @@ -1159,6 +1159,23 @@ TRACE_EVENT(rdev_change_bss, __entry->ap_isolate, __entry->ht_opmode) ); +TRACE_EVENT(rdev_inform_bss, + TP_PROTO(struct wiphy *wiphy, struct cfg80211_bss *bss), + TP_ARGS(wiphy, bss), + TP_STRUCT__entry( + WIPHY_ENTRY + MAC_ENTRY(bssid) + CHAN_ENTRY + ), + TP_fast_assign( + WIPHY_ASSIGN; + MAC_ASSIGN(bssid, bss->bssid); + CHAN_ASSIGN(bss->channel); + ), + TP_printk(WIPHY_PR_FMT ", %pM, " CHAN_PR_FMT, + WIPHY_PR_ARG, __entry->bssid, CHAN_PR_ARG) +); + TRACE_EVENT(rdev_set_txq_params, TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, struct ieee80211_txq_params *params),