diff options
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c | 61 |
1 files changed, 33 insertions, 28 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c index 3442dfab50..561d0c2611 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c +++ b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c @@ -64,21 +64,22 @@ dbg_ver_table[IWL_DBG_TLV_TYPE_NUM] = { [IWL_DBG_TLV_TYPE_CONF_SET] = {.min_ver = 1, .max_ver = 1,}, }; -static int iwl_dbg_tlv_add(const struct iwl_ucode_tlv *tlv, - struct list_head *list) +/* add a new TLV node, returning it so it can be modified */ +static struct iwl_ucode_tlv *iwl_dbg_tlv_add(const struct iwl_ucode_tlv *tlv, + struct list_head *list) { u32 len = le32_to_cpu(tlv->length); struct iwl_dbg_tlv_node *node; - node = kzalloc(sizeof(*node) + len, GFP_KERNEL); + node = kzalloc(struct_size(node, tlv.data, len), GFP_KERNEL); if (!node) - return -ENOMEM; + return NULL; memcpy(&node->tlv, tlv, sizeof(node->tlv)); memcpy(node->tlv.data, tlv->data, len); list_add_tail(&node->list, list); - return 0; + return &node->tlv; } static bool iwl_dbg_tlv_ver_support(const struct iwl_ucode_tlv *tlv) @@ -112,7 +113,9 @@ static int iwl_dbg_tlv_alloc_debug_info(struct iwl_trans *trans, IWL_DEBUG_FW(trans, "WRT: Loading debug cfg: %s\n", debug_info->debug_cfg_name); - return iwl_dbg_tlv_add(tlv, &trans->dbg.debug_info_tlv_list); + if (!iwl_dbg_tlv_add(tlv, &trans->dbg.debug_info_tlv_list)) + return -ENOMEM; + return 0; } static int iwl_dbg_tlv_alloc_buf_alloc(struct iwl_trans *trans, @@ -181,7 +184,9 @@ static int iwl_dbg_tlv_alloc_hcmd(struct iwl_trans *trans, return -EINVAL; } - return iwl_dbg_tlv_add(tlv, &trans->dbg.time_point[tp].hcmd_list); + if (!iwl_dbg_tlv_add(tlv, &trans->dbg.time_point[tp].hcmd_list)) + return -ENOMEM; + return 0; } static int iwl_dbg_tlv_alloc_region(struct iwl_trans *trans, @@ -252,11 +257,9 @@ static int iwl_dbg_tlv_alloc_trigger(struct iwl_trans *trans, const struct iwl_ucode_tlv *tlv) { const struct iwl_fw_ini_trigger_tlv *trig = (const void *)tlv->data; - struct iwl_fw_ini_trigger_tlv *dup_trig; u32 tp = le32_to_cpu(trig->time_point); u32 rf = le32_to_cpu(trig->reset_fw); - struct iwl_ucode_tlv *dup = NULL; - int ret; + struct iwl_ucode_tlv *new_tlv; if (le32_to_cpu(tlv->length) < sizeof(*trig)) return -EINVAL; @@ -273,20 +276,18 @@ static int iwl_dbg_tlv_alloc_trigger(struct iwl_trans *trans, "WRT: time point %u for trigger TLV with reset_fw %u\n", tp, rf); trans->dbg.last_tp_resetfw = 0xFF; + + new_tlv = iwl_dbg_tlv_add(tlv, &trans->dbg.time_point[tp].trig_list); + if (!new_tlv) + return -ENOMEM; + if (!le32_to_cpu(trig->occurrences)) { - dup = kmemdup(tlv, sizeof(*tlv) + le32_to_cpu(tlv->length), - GFP_KERNEL); - if (!dup) - return -ENOMEM; - dup_trig = (void *)dup->data; - dup_trig->occurrences = cpu_to_le32(-1); - tlv = dup; - } + struct iwl_fw_ini_trigger_tlv *new_trig = (void *)new_tlv->data; - ret = iwl_dbg_tlv_add(tlv, &trans->dbg.time_point[tp].trig_list); - kfree(dup); + new_trig->occurrences = cpu_to_le32(-1); + } - return ret; + return 0; } static int iwl_dbg_tlv_config_set(struct iwl_trans *trans, @@ -310,7 +311,9 @@ static int iwl_dbg_tlv_config_set(struct iwl_trans *trans, return -EINVAL; } - return iwl_dbg_tlv_add(tlv, &trans->dbg.time_point[tp].config_list); + if (!iwl_dbg_tlv_add(tlv, &trans->dbg.time_point[tp].config_list)) + return -ENOMEM; + return 0; } static int (*dbg_tlv_alloc[])(struct iwl_trans *trans, @@ -1154,7 +1157,9 @@ iwl_dbg_tlv_add_active_trigger(struct iwl_fw_runtime *fwrt, if (!match) { IWL_DEBUG_FW(fwrt, "WRT: Enabling trigger (time point %u)\n", le32_to_cpu(trig->time_point)); - return iwl_dbg_tlv_add(trig_tlv, trig_list); + if (!iwl_dbg_tlv_add(trig_tlv, trig_list)) + return -ENOMEM; + return 0; } return iwl_dbg_tlv_override_trig_node(fwrt, trig_tlv, match); @@ -1240,7 +1245,7 @@ iwl_dbg_tlv_tp_trigger(struct iwl_fw_runtime *fwrt, bool sync, } } - fwrt->trans->dbg.restart_required = FALSE; + fwrt->trans->dbg.restart_required = false; IWL_DEBUG_FW(fwrt, "WRT: tp %d, reset_fw %d\n", tp, dump_data.trig->reset_fw); IWL_DEBUG_FW(fwrt, @@ -1250,22 +1255,22 @@ iwl_dbg_tlv_tp_trigger(struct iwl_fw_runtime *fwrt, bool sync, if (fwrt->trans->trans_cfg->device_family == IWL_DEVICE_FAMILY_9000) { - fwrt->trans->dbg.restart_required = TRUE; + fwrt->trans->dbg.restart_required = true; } else if (tp == IWL_FW_INI_TIME_POINT_FW_ASSERT && fwrt->trans->dbg.last_tp_resetfw == IWL_FW_INI_RESET_FW_MODE_STOP_FW_ONLY) { - fwrt->trans->dbg.restart_required = FALSE; + fwrt->trans->dbg.restart_required = false; fwrt->trans->dbg.last_tp_resetfw = 0xFF; IWL_DEBUG_FW(fwrt, "WRT: FW_ASSERT due to reset_fw_mode-no restart\n"); } else if (le32_to_cpu(dump_data.trig->reset_fw) == IWL_FW_INI_RESET_FW_MODE_STOP_AND_RELOAD_FW) { IWL_DEBUG_FW(fwrt, "WRT: stop and reload firmware\n"); - fwrt->trans->dbg.restart_required = TRUE; + fwrt->trans->dbg.restart_required = true; } else if (le32_to_cpu(dump_data.trig->reset_fw) == IWL_FW_INI_RESET_FW_MODE_STOP_FW_ONLY) { IWL_DEBUG_FW(fwrt, "WRT: stop only and no reload firmware\n"); - fwrt->trans->dbg.restart_required = FALSE; + fwrt->trans->dbg.restart_required = false; fwrt->trans->dbg.last_tp_resetfw = le32_to_cpu(dump_data.trig->reset_fw); } else if (le32_to_cpu(dump_data.trig->reset_fw) == |