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path: root/drivers/net/wireless/iwlwifi/mvm/ops.c
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Diffstat (limited to 'drivers/net/wireless/iwlwifi/mvm/ops.c')
-rw-r--r--drivers/net/wireless/iwlwifi/mvm/ops.c21
1 files changed, 20 insertions, 1 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index 24afbd6..cf33a12 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -326,6 +326,23 @@ static const char *iwl_mvm_cmd_strings[REPLY_MAX] = {
/* this forward declaration can avoid to export the function */
static void iwl_mvm_async_handlers_wk(struct work_struct *wk);
+static u32 calc_min_backoff(struct iwl_trans *trans, const struct iwl_cfg *cfg)
+{
+ const struct iwl_pwr_tx_backoff *pwr_tx_backoff = cfg->pwr_tx_backoffs;
+
+ if (!pwr_tx_backoff)
+ return 0;
+
+ while (pwr_tx_backoff->pwr) {
+ if (trans->dflt_pwr_limit >= pwr_tx_backoff->pwr)
+ return pwr_tx_backoff->backoff;
+
+ pwr_tx_backoff++;
+ }
+
+ return 0;
+}
+
static struct iwl_op_mode *
iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
const struct iwl_fw *fw, struct dentry *dbgfs_dir)
@@ -338,6 +355,7 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
TX_CMD,
};
int err, scan_size;
+ u32 min_backoff;
/*
* We use IWL_MVM_STATION_COUNT to check the validity of the station
@@ -433,7 +451,8 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
IWL_INFO(mvm, "Detected %s, REV=0x%X\n",
mvm->cfg->name, mvm->trans->hw_rev);
- iwl_mvm_tt_initialize(mvm);
+ min_backoff = calc_min_backoff(trans, cfg);
+ iwl_mvm_tt_initialize(mvm, min_backoff);
/*
* If the NVM exists in an external file,
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