From: Mukesh Sisodiya <mukesh.sisodiya@xxxxxxxxx>
Region TLV version 2 now includes more data, but it is not
relevant for the driver.
In order to support this new version, just mask the new part out.
Signed-off-by: Mukesh Sisodiya <mukesh.sisodiya@xxxxxxxxx>
Signed-off-by: Luca Coelho <luciano.coelho@xxxxxxxxx>
---
drivers/net/wireless/intel/iwlwifi/fw/api/dbg-tlv.h | 3 ++-
drivers/net/wireless/intel/iwlwifi/fw/dbg.c | 9 ++++++++-
drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c | 13 ++++++++++++-
3 files changed, 22 insertions(+), 3 deletions(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/dbg-tlv.h b/drivers/net/wireless/intel/iwlwifi/fw/api/dbg-tlv.h
index 996d5cc5bd9a..5a2d9a1f7e73 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/api/dbg-tlv.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/api/dbg-tlv.h
@@ -1,6 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
/*
- * Copyright (C) 2018-2020 Intel Corporation
+ * Copyright (C) 2018-2021 Intel Corporation
*/
#ifndef __iwl_fw_dbg_tlv_h__
#define __iwl_fw_dbg_tlv_h__
@@ -11,6 +11,7 @@
#define IWL_FW_INI_MAX_NAME 32
#define IWL_FW_INI_MAX_CFG_NAME 64
#define IWL_FW_INI_DOMAIN_ALWAYS_ON 0
+#define IWL_FW_INI_REGION_V2_MASK 0x0000FFFF
/**
* struct iwl_fw_ini_hcmd
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
index cc4e18ca9566..5a534d70f253 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
@@ -1933,6 +1933,13 @@ static u32 iwl_dump_ini_mem(struct iwl_fw_runtime *fwrt, struct list_head *list,
u32 num_of_ranges, i, size;
void *range;
+ /*
+ * The higher part of the ID in version 2 is irrelevant for
+ * us, so mask it out.
+ */
+ if (le32_to_cpu(reg->hdr.version) == 2)
+ id &= IWL_FW_INI_REGION_V2_MASK;
+
if (!ops->get_num_of_ranges || !ops->get_size || !ops->fill_mem_hdr ||
!ops->fill_range)
return 0;
@@ -1957,7 +1964,7 @@ static u32 iwl_dump_ini_mem(struct iwl_fw_runtime *fwrt, struct list_head *list,
num_of_ranges = ops->get_num_of_ranges(fwrt, reg_data);
header = (void *)tlv->data;
- header->region_id = reg->id;
+ header->region_id = cpu_to_le32(id);
header->num_of_ranges = cpu_to_le32(num_of_ranges);
header->name_len = cpu_to_le32(IWL_FW_INI_MAX_NAME);
memcpy(header->name, reg->name, IWL_FW_INI_MAX_NAME);
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
index 4cd8c39cc3e9..0ddd255a8cc1 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
@@ -57,7 +57,7 @@ dbg_ver_table[IWL_DBG_TLV_TYPE_NUM] = {
[IWL_DBG_TLV_TYPE_DEBUG_INFO] = {.min_ver = 1, .max_ver = 1,},
[IWL_DBG_TLV_TYPE_BUF_ALLOC] = {.min_ver = 1, .max_ver = 1,},
[IWL_DBG_TLV_TYPE_HCMD] = {.min_ver = 1, .max_ver = 1,},
- [IWL_DBG_TLV_TYPE_REGION] = {.min_ver = 1, .max_ver = 1,},
+ [IWL_DBG_TLV_TYPE_REGION] = {.min_ver = 1, .max_ver = 2,},
[IWL_DBG_TLV_TYPE_TRIGGER] = {.min_ver = 1, .max_ver = 1,},
};
@@ -178,9 +178,20 @@ static int iwl_dbg_tlv_alloc_region(struct iwl_trans *trans,
u32 type = le32_to_cpu(reg->type);
u32 tlv_len = sizeof(*tlv) + le32_to_cpu(tlv->length);
+ /*
+ * The higher part of the ID in version 2 is irrelevant for
+ * us, so mask it out.
+ */
+ if (le32_to_cpu(reg->hdr.version) == 2)
+ id &= IWL_FW_INI_REGION_V2_MASK;
+
if (le32_to_cpu(tlv->length) < sizeof(*reg))
return -EINVAL;
+ /* for safe use of a string from FW, limit it to IWL_FW_INI_MAX_NAME */
+ IWL_DEBUG_FW(trans, "WRT: parsing region: %.*s\n",
+ IWL_FW_INI_MAX_NAME, reg->name);
+
if (id >= IWL_FW_INI_MAX_REGION_ID) {
IWL_ERR(trans, "WRT: Invalid region id %u\n", id);
return -EINVAL;
--
2.32.0.rc2
