linux-kernel - [PATCH 5.15 076/196] iwlwifi: mvm: dont send SAR GEO command for 3160 devices

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20220221084933.478411606@linuxfoundation.org>
Date:   Mon, 21 Feb 2022 09:48:28 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Len Brown <lenb@...nel.org>,
        Luca Coelho <luciano.coelho@...el.com>,
        Kalle Valo <kvalo@...nel.org>
Subject: [PATCH 5.15 076/196] iwlwifi: mvm: dont send SAR GEO command for 3160 devices

From: Luca Coelho <luciano.coelho@...el.com>

commit 5f06f6bf8d816578c390a2b8a485d40adcca4749 upstream.

SAR GEO offsets are not supported on 3160 devices.  The code was
refactored and caused us to start sending the command anyway, which
causes a FW assertion failure.  Fix that only considering this feature
supported on FW API with major version is 17 if the device is not
3160.

Additionally, fix the caller of iwl_mvm_sar_geo_init() so that it
checks for the return value, which it was ignoring.

Reported-by: Len Brown <lenb@...nel.org>
Signed-off-by: Luca Coelho <luciano.coelho@...el.com>
Fixes: 78a19d5285d9 ("iwlwifi: mvm: Read the PPAG and SAR tables at INIT stage")
Signed-off-by: Luca Coelho <luciano.coelho@...el.com>
Signed-off-by: Kalle Valo <kvalo@...nel.org>
Link: https://lore.kernel.org/r/iwlwifi.20220128144623.96f683a89b42.I14e2985bfd7ddd8a8d83eb1869b800c0e7f30db4@changeid
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/net/wireless/intel/iwlwifi/fw/acpi.c |   11 ++++++-----
 drivers/net/wireless/intel/iwlwifi/iwl-csr.h |    3 ++-
 drivers/net/wireless/intel/iwlwifi/mvm/fw.c  |    2 +-
 3 files changed, 9 insertions(+), 7 deletions(-)

--- a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
 /*
  * Copyright (C) 2017 Intel Deutschland GmbH
- * Copyright (C) 2019-2021 Intel Corporation
+ * Copyright (C) 2019-2022 Intel Corporation
  */
 #include <linux/uuid.h>
 #include "iwl-drv.h"
@@ -814,10 +814,11 @@ bool iwl_sar_geo_support(struct iwl_fw_r
 	 * only one using version 36, so skip this version entirely.
 	 */
 	return IWL_UCODE_SERIAL(fwrt->fw->ucode_ver) >= 38 ||
-	       IWL_UCODE_SERIAL(fwrt->fw->ucode_ver) == 17 ||
-	       (IWL_UCODE_SERIAL(fwrt->fw->ucode_ver) == 29 &&
-		((fwrt->trans->hw_rev & CSR_HW_REV_TYPE_MSK) ==
-		 CSR_HW_REV_TYPE_7265D));
+		(IWL_UCODE_SERIAL(fwrt->fw->ucode_ver) == 17 &&
+		 fwrt->trans->hw_rev != CSR_HW_REV_TYPE_3160) ||
+		(IWL_UCODE_SERIAL(fwrt->fw->ucode_ver) == 29 &&
+		 ((fwrt->trans->hw_rev & CSR_HW_REV_TYPE_MSK) ==
+		  CSR_HW_REV_TYPE_7265D));
 }
 IWL_EXPORT_SYMBOL(iwl_sar_geo_support);
 
--- a/drivers/net/wireless/intel/iwlwifi/iwl-csr.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-csr.h
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
 /*
- * Copyright (C) 2005-2014, 2018-2021 Intel Corporation
+ * Copyright (C) 2005-2014, 2018-2022 Intel Corporation
  * Copyright (C) 2013-2014 Intel Mobile Communications GmbH
  * Copyright (C) 2016 Intel Deutschland GmbH
  */
@@ -319,6 +319,7 @@ enum {
 #define CSR_HW_REV_TYPE_2x00		(0x0000100)
 #define CSR_HW_REV_TYPE_105		(0x0000110)
 #define CSR_HW_REV_TYPE_135		(0x0000120)
+#define CSR_HW_REV_TYPE_3160		(0x0000164)
 #define CSR_HW_REV_TYPE_7265D		(0x0000210)
 #define CSR_HW_REV_TYPE_NONE		(0x00001F0)
 #define CSR_HW_REV_TYPE_QNJ		(0x0000360)
--- a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
@@ -1572,7 +1572,7 @@ int iwl_mvm_up(struct iwl_mvm *mvm)
 	ret = iwl_mvm_sar_init(mvm);
 	if (ret == 0)
 		ret = iwl_mvm_sar_geo_init(mvm);
-	else if (ret < 0)
+	if (ret < 0)
 		goto error;
 
 	iwl_mvm_tas_init(mvm);