6.17-stable review patch. If anyone has any objections, please let me know.
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From: Somashekhar Puttagangaiah somashekhar.puttagangaiah@intel.com
[ Upstream commit 14a4aca568f6e78af7564c6fc5f1ecc1a5a32c33 ]
When beacon loss happens or the RSSI drops, trigger MLO scan only if not in EMLSR. The link switch was meant to be done when we are not in EMLSR and we can try to switch to a better link. If in EMLSR, we exit first and then trigger MLO scan.
Signed-off-by: Somashekhar Puttagangaiah somashekhar.puttagangaiah@intel.com Signed-off-by: Miri Korenblit miriam.rachel.korenblit@intel.com Link: https://patch.msgid.link/20250826184046.f6ae8e3882cf.I60901c16487371b8e62019... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/intel/iwlwifi/mld/link.c | 7 +++++-- drivers/net/wireless/intel/iwlwifi/mld/stats.c | 11 +++++++---- 2 files changed, 12 insertions(+), 6 deletions(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/mld/link.c b/drivers/net/wireless/intel/iwlwifi/mld/link.c index 960dcd208f005..131190977d4b0 100644 --- a/drivers/net/wireless/intel/iwlwifi/mld/link.c +++ b/drivers/net/wireless/intel/iwlwifi/mld/link.c @@ -573,8 +573,11 @@ void iwl_mld_handle_missed_beacon_notif(struct iwl_mld *mld, if (missed_bcon_since_rx > IWL_MLD_MISSED_BEACONS_THRESHOLD) { ieee80211_cqm_beacon_loss_notify(vif, GFP_ATOMIC);
- /* try to switch links, no-op if we don't have MLO */ - iwl_mld_int_mlo_scan(mld, vif); + /* Not in EMLSR and we can't hear the link. + * Try to switch to a better link. EMLSR case is handled below. + */ + if (!iwl_mld_emlsr_active(vif)) + iwl_mld_int_mlo_scan(mld, vif); }
/* no more logic if we're not in EMLSR */ diff --git a/drivers/net/wireless/intel/iwlwifi/mld/stats.c b/drivers/net/wireless/intel/iwlwifi/mld/stats.c index cbc64db5eab6f..7b8709716324a 100644 --- a/drivers/net/wireless/intel/iwlwifi/mld/stats.c +++ b/drivers/net/wireless/intel/iwlwifi/mld/stats.c @@ -379,11 +379,14 @@ static void iwl_mld_update_link_sig(struct ieee80211_vif *vif, int sig,
/* TODO: task=statistics handle CQM notifications */
- if (sig < IWL_MLD_LOW_RSSI_MLO_SCAN_THRESH) - iwl_mld_int_mlo_scan(mld, vif); - - if (!iwl_mld_emlsr_active(vif)) + if (!iwl_mld_emlsr_active(vif)) { + /* We're not in EMLSR and our signal is bad, + * try to switch link maybe. EMLSR will be handled below. + */ + if (sig < IWL_MLD_LOW_RSSI_MLO_SCAN_THRESH) + iwl_mld_int_mlo_scan(mld, vif); return; + }
/* We are in EMLSR, check if we need to exit */ exit_emlsr_thresh =