From: Luca Coelho <luciano.coelho@xxxxxxxxx>
Instead of keeping the fw_key_table bits set when the keys are removed
(i.e. in D3 entry or HW_RESTART flows), clear them and set them again
only when the keys have been successfully re-added. This makes the
bitmask more closely tied to the actual firmware programming.
Signed-off-by: Luca Coelho <luciano.coelho@xxxxxxxxx>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx>
---
drivers/net/wireless/intel/iwlwifi/mvm/d3.c | 3 +++
drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c | 1 +
drivers/net/wireless/intel/iwlwifi/mvm/sta.c | 10 ++++------
3 files changed, 8 insertions(+), 6 deletions(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
index 8cd2e67..69fd10a 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
@@ -779,6 +779,9 @@ static int iwl_mvm_switch_to_d3(struct iwl_mvm *mvm)
*/
set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
+ /* the fw is reset, so all the keys are cleared */
+ memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
+
mvm->ptk_ivlen = 0;
mvm->ptk_icvlen = 0;
mvm->ptk_ivlen = 0;
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index d239e97..be5703c 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -984,6 +984,7 @@ static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
iwl_mvm_reset_phy_ctxts(mvm);
+ memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained));
memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
index 4148ebe..92edacc 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
@@ -1198,8 +1198,6 @@ static int iwl_mvm_set_fw_key_idx(struct iwl_mvm *mvm)
if (max_offs < 0)
return STA_KEY_IDX_INVALID;
- __set_bit(max_offs, mvm->fw_key_table);
-
return max_offs;
}
@@ -1507,10 +1505,8 @@ int iwl_mvm_set_sta_key(struct iwl_mvm *mvm,
}
ret = __iwl_mvm_set_sta_key(mvm, vif, sta, keyconf, key_offset, mcast);
- if (ret) {
- __clear_bit(keyconf->hw_key_idx, mvm->fw_key_table);
+ if (ret)
goto end;
- }
/*
* For WEP, the same key is used for multicast and unicast. Upload it
@@ -1523,11 +1519,13 @@ int iwl_mvm_set_sta_key(struct iwl_mvm *mvm,
ret = __iwl_mvm_set_sta_key(mvm, vif, sta, keyconf,
key_offset, !mcast);
if (ret) {
- __clear_bit(keyconf->hw_key_idx, mvm->fw_key_table);
__iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, mcast);
+ goto end;
}
}
+ __set_bit(key_offset, mvm->fw_key_table);
+
end:
IWL_DEBUG_WEP(mvm, "key: cipher=%x len=%d idx=%d sta=%pM ret=%d\n",
keyconf->cipher, keyconf->keylen, keyconf->keyidx,
--
2.5.0
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