From 3d4060d58130aa805fb505c8ed4a9fbf8a3e09be Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Thu, 11 Sep 2014 14:12:06 +0200 Subject: [PATCH] iwlwifi: mvm: fix quota update avoidance When not updating the quota, the new command shouldn't be stored as otherwise slowly drifting quota would never update the firmware. Fix this by storing the command only when it was also sent. Since the error message also only makes sense when attempting to send the command, just short-circuit the function when there's no need to send the command. Signed-off-by: Johannes Berg Signed-off-by: Emmanuel Grumbach --- drivers/net/wireless/iwlwifi/mvm/quota.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/mvm/quota.c b/drivers/net/wireless/iwlwifi/mvm/quota.c index 1eab2f2..dbb2594 100644 --- a/drivers/net/wireless/iwlwifi/mvm/quota.c +++ b/drivers/net/wireless/iwlwifi/mvm/quota.c @@ -309,17 +309,16 @@ int iwl_mvm_update_quotas(struct iwl_mvm *mvm, "zero quota on binding %d\n", i); } - if (send) { - err = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, 0, - sizeof(cmd), &cmd); - } else { + if (!send) { /* don't send a practically unchanged command, the firmware has * to re-initialize a lot of state and that can have an adverse * impact on it */ - err = 0; + return 0; } + err = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, 0, sizeof(cmd), &cmd); + if (err) IWL_ERR(mvm, "Failed to send quota: %d\n", err); else -- 2.7.4