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 | 104 |
1 files changed, 49 insertions, 55 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c index 72075720969c..5c8f6dc9a3e0 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c +++ b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause /* - * Copyright (C) 2018-2024 Intel Corporation + * Copyright (C) 2018-2025 Intel Corporation */ #include <linux/firmware.h> #include "iwl-drv.h" @@ -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) @@ -103,10 +104,18 @@ static int iwl_dbg_tlv_alloc_debug_info(struct iwl_trans *trans, if (le32_to_cpu(tlv->length) != sizeof(*debug_info)) return -EINVAL; + /* we use this as a string, ensure input was NUL terminated */ + if (strnlen(debug_info->debug_cfg_name, + sizeof(debug_info->debug_cfg_name)) == + sizeof(debug_info->debug_cfg_name)) + return -EINVAL; + 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, @@ -175,7 +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, @@ -212,12 +223,6 @@ static int iwl_dbg_tlv_alloc_region(struct iwl_trans *trans, return -EINVAL; } - if (type == IWL_FW_INI_REGION_PCI_IOSF_CONFIG && - !trans->ops->read_config32) { - IWL_ERR(trans, "WRT: Unsupported region type %u\n", type); - return -EOPNOTSUPP; - } - if (type == IWL_FW_INI_REGION_INTERNAL_BUFFER) { trans->dbg.imr_data.sram_addr = le32_to_cpu(reg->internal_buffer.base_addr); @@ -246,11 +251,9 @@ 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; @@ -267,20 +270,18 @@ 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, @@ -304,7 +305,9 @@ 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, @@ -500,7 +503,7 @@ void iwl_dbg_tlv_load_bin(struct device *dev, struct iwl_trans *trans) int res; if (!iwlwifi_mod_params.enable_ini || - trans->trans_cfg->device_family <= IWL_DEVICE_FAMILY_8000) + trans->mac_cfg->device_family <= IWL_DEVICE_FAMILY_8000) return; res = firmware_request_nowarn(&fw, yoyo_bin, dev); @@ -600,11 +603,11 @@ static int iwl_dbg_tlv_alloc_fragments(struct iwl_fw_runtime *fwrt, return 0; num_frags = le32_to_cpu(fw_mon_cfg->max_frags_num); - if (fwrt->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_AX210) { + if (fwrt->trans->mac_cfg->device_family < IWL_DEVICE_FAMILY_AX210) { if (alloc_id != IWL_FW_INI_ALLOCATION_ID_DBGC1) return -EIO; num_frags = 1; - } else if (fwrt->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_BZ && + } else if (fwrt->trans->mac_cfg->device_family < IWL_DEVICE_FAMILY_BZ && alloc_id > IWL_FW_INI_ALLOCATION_ID_DBGC3) { return -EIO; } @@ -1148,7 +1151,9 @@ 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); @@ -1234,38 +1239,27 @@ iwl_dbg_tlv_tp_trigger(struct iwl_fw_runtime *fwrt, bool sync, } } - 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, - "WRT: restart_required %d, last_tp_resetfw %d\n", - fwrt->trans->dbg.restart_required, - fwrt->trans->dbg.last_tp_resetfw); + fwrt->trans->dbg.restart_required = false; - if (fwrt->trans->trans_cfg->device_family == + if (fwrt->trans->mac_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) == IWL_FW_INI_RESET_FW_MODE_NOTHING) { - IWL_DEBUG_FW(fwrt, - "WRT: nothing need to be done after debug collection\n"); + /* nothing */ } else { IWL_ERR(fwrt, "WRT: wrong resetfw %d\n", le32_to_cpu(dump_data.trig->reset_fw)); @@ -1378,15 +1372,15 @@ void _iwl_dbg_tlv_time_point(struct iwl_fw_runtime *fwrt, switch (tp_id) { case IWL_FW_INI_TIME_POINT_EARLY: iwl_dbg_tlv_init_cfg(fwrt); - iwl_dbg_tlv_apply_config(fwrt, conf_list); iwl_dbg_tlv_update_drams(fwrt); iwl_dbg_tlv_tp_trigger(fwrt, sync, trig_list, tp_data, NULL); + iwl_dbg_tlv_apply_config(fwrt, conf_list); break; case IWL_FW_INI_TIME_POINT_AFTER_ALIVE: iwl_dbg_tlv_apply_buffers(fwrt); iwl_dbg_tlv_send_hcmds(fwrt, hcmd_list); - iwl_dbg_tlv_apply_config(fwrt, conf_list); iwl_dbg_tlv_tp_trigger(fwrt, sync, trig_list, tp_data, NULL); + iwl_dbg_tlv_apply_config(fwrt, conf_list); break; case IWL_FW_INI_TIME_POINT_PERIODIC: iwl_dbg_tlv_set_periodic_trigs(fwrt); @@ -1396,14 +1390,14 @@ void _iwl_dbg_tlv_time_point(struct iwl_fw_runtime *fwrt, case IWL_FW_INI_TIME_POINT_MISSED_BEACONS: case IWL_FW_INI_TIME_POINT_FW_DHC_NOTIFICATION: iwl_dbg_tlv_send_hcmds(fwrt, hcmd_list); - iwl_dbg_tlv_apply_config(fwrt, conf_list); iwl_dbg_tlv_tp_trigger(fwrt, sync, trig_list, tp_data, iwl_dbg_tlv_check_fw_pkt); + iwl_dbg_tlv_apply_config(fwrt, conf_list); break; default: iwl_dbg_tlv_send_hcmds(fwrt, hcmd_list); - iwl_dbg_tlv_apply_config(fwrt, conf_list); iwl_dbg_tlv_tp_trigger(fwrt, sync, trig_list, tp_data, NULL); + iwl_dbg_tlv_apply_config(fwrt, conf_list); break; } } |