From 62e27076b7a48d1c8fc4eed59ff75f6382915c46 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Andr=C3=A9=20Fabian=20Silva=20Delgado?= Date: Wed, 30 Nov 2016 18:50:18 -0300 Subject: Linux-libre 4.8.11-gnu --- drivers/net/wireless/intel/iwlwifi/mvm/scan.c | 33 ++++++++++++++++++++++----- 1 file changed, 27 insertions(+), 6 deletions(-) (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/scan.c') diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c index dac120f88..3707ec60b 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c @@ -1185,6 +1185,9 @@ static int iwl_mvm_num_scans(struct iwl_mvm *mvm) static int iwl_mvm_check_running_scans(struct iwl_mvm *mvm, int type) { + bool unified_image = fw_has_capa(&mvm->fw->ucode_capa, + IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); + /* This looks a bit arbitrary, but the idea is that if we run * out of possible simultaneous scans and the userspace is * trying to run a scan type that is already running, we @@ -1211,12 +1214,30 @@ static int iwl_mvm_check_running_scans(struct iwl_mvm *mvm, int type) return -EBUSY; return iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); case IWL_MVM_SCAN_NETDETECT: - /* No need to stop anything for net-detect since the - * firmware is restarted anyway. This way, any sched - * scans that were running will be restarted when we - * resume. - */ - return 0; + /* For non-unified images, there's no need to stop + * anything for net-detect since the firmware is + * restarted anyway. This way, any sched scans that + * were running will be restarted when we resume. + */ + if (!unified_image) + return 0; + + /* If this is a unified image and we ran out of scans, + * we need to stop something. Prefer stopping regular + * scans, because the results are useless at this + * point, and we should be able to keep running + * another scheduled scan while suspended. + */ + if (mvm->scan_status & IWL_MVM_SCAN_REGULAR_MASK) + return iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, + true); + if (mvm->scan_status & IWL_MVM_SCAN_SCHED_MASK) + return iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, + true); + + /* fall through, something is wrong if no scan was + * running but we ran out of scans. + */ default: WARN_ON(1); break; -- cgit v1.2.3