From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C622413D520; Wed, 25 Sep 2024 12:00:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727265622; cv=none; b=MM91RlDFYbFCI+9FAsmOjdApzAQhKmTrspwWcQw646nm+HAxiZFEaTXWrdTgLxciC/2hcNk0QyagjSCbJHp7sIJuzZffREA/4CxT3VciEk+THkzTXDGGfONS/XE6EqBkLrOjdVUtP7iOBolw2dx0txFc2hYXfGnmaXFyIW8P44o= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727265622; c=relaxed/simple; bh=y53wtsUn2HG6tdkyQ5fHyz1/mgyKQu04rLSXx2Rpm1g=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=YyIp0KrRV8hfbQT1HAaWHfjFOYoW/eZOcDBjsq2moUuEgGBvl7RLlPnyJYLPp6utGDQXwJjjeN2Prr6Pv9kJIbqcjnC72pqTWVMpLeg26o5HJ7IQIwhkXWJ8WtIJU8Ovc32xmCPB8zaAKmvRPGi+QtSoackFGe8cDhFHQQJBD2Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=kHANmOqD; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="kHANmOqD" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D3E59C4CECE; Wed, 25 Sep 2024 12:00:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1727265622; bh=y53wtsUn2HG6tdkyQ5fHyz1/mgyKQu04rLSXx2Rpm1g=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kHANmOqDo4lNOS5vv5TJTKTXNwMd54YjrR6+jtmbPBkeWIoh26bPu32IeZJZKVLs4 oCH8lQGZtRBSlvXBBngTkpKEcX9ReWJ4AZj2KOtOtH8CbA3W8e8WXJRfem83u/6Pwz VJ775qHRnrfyCjMYaI4s+KfzeJqxIYpNpfkM/E9NZxF6YIWBsdtaxNivqgcjUksOZx rOBwhPDK5GEGpVMXoPTEDY9j+TDaxYjPTe8ACVAe9xziXM3AlezyeKB3NHjghg0A4J qKMX4MxQh3c9Vgbuew9RzJp+QfcT0tcvZBxWfIbm4AN4qOAPZjTtlYcgvWr1d7+SFa RJBPF5/ppeD6A== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Anjaneyulu , Miri Korenblit , Johannes Berg , Sasha Levin , kvalo@kernel.org, gregory.greenman@intel.com, dan.carpenter@linaro.org, daniel.gabay@intel.com, mukesh.sisodiya@intel.com, arnd@arndb.de, linux-wireless@vger.kernel.org Subject: [PATCH AUTOSEL 6.10 050/197] wifi: iwlwifi: allow only CN mcc from WRDD Date: Wed, 25 Sep 2024 07:51:09 -0400 Message-ID: <20240925115823.1303019-50-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240925115823.1303019-1-sashal@kernel.org> References: <20240925115823.1303019-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 6.10.11 Content-Transfer-Encoding: 8bit From: Anjaneyulu [ Upstream commit ff5aabe7c2a4a4b089a9ced0cb3d0e284963a7dd ] Block other mcc expect CN from WRDD ACPI. Signed-off-by: Anjaneyulu Signed-off-by: Miri Korenblit Link: https://patch.msgid.link/20240808232017.fe6ea7aa4b39.I86004687a2963fe26f990770aca103e2f5cb1628@changeid Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin --- drivers/net/wireless/intel/iwlwifi/fw/acpi.c | 5 +++++ drivers/net/wireless/intel/iwlwifi/fw/regulatory.h | 2 ++ drivers/net/wireless/intel/iwlwifi/fw/uefi.c | 2 +- drivers/net/wireless/intel/iwlwifi/fw/uefi.h | 2 -- 4 files changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c index ba9e656037a20..9b3d3405fb83d 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c +++ b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c @@ -356,6 +356,11 @@ int iwl_acpi_get_mcc(struct iwl_fw_runtime *fwrt, char *mcc) } mcc_val = wifi_pkg->package.elements[1].integer.value; + if (mcc_val != BIOS_MCC_CHINA) { + ret = -EINVAL; + IWL_DEBUG_RADIO(fwrt, "ACPI WRDD is supported only for CN\n"); + goto out_free; + } mcc[0] = (mcc_val >> 8) & 0xff; mcc[1] = mcc_val & 0xff; diff --git a/drivers/net/wireless/intel/iwlwifi/fw/regulatory.h b/drivers/net/wireless/intel/iwlwifi/fw/regulatory.h index 633c9ad9af841..ecf482647617c 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/regulatory.h +++ b/drivers/net/wireless/intel/iwlwifi/fw/regulatory.h @@ -45,6 +45,8 @@ #define IWL_WTAS_ENABLE_IEC_MSK 0x4 #define IWL_WTAS_USA_UHB_MSK BIT(16) +#define BIOS_MCC_CHINA 0x434e + /* * The profile for revision 2 is a superset of revision 1, which is in * turn a superset of revision 0. So we can store all revisions diff --git a/drivers/net/wireless/intel/iwlwifi/fw/uefi.c b/drivers/net/wireless/intel/iwlwifi/fw/uefi.c index fb982d4fe8510..2cf878f237ac6 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/uefi.c +++ b/drivers/net/wireless/intel/iwlwifi/fw/uefi.c @@ -638,7 +638,7 @@ int iwl_uefi_get_mcc(struct iwl_fw_runtime *fwrt, char *mcc) goto out; } - if (data->mcc != UEFI_MCC_CHINA) { + if (data->mcc != BIOS_MCC_CHINA) { ret = -EINVAL; IWL_DEBUG_RADIO(fwrt, "UEFI WRDD is supported only for CN\n"); goto out; diff --git a/drivers/net/wireless/intel/iwlwifi/fw/uefi.h b/drivers/net/wireless/intel/iwlwifi/fw/uefi.h index 1f8884ca8997c..e0ef981cd8f28 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/uefi.h +++ b/drivers/net/wireless/intel/iwlwifi/fw/uefi.h @@ -149,8 +149,6 @@ struct uefi_cnv_var_splc { u32 default_pwr_limit; } __packed; -#define UEFI_MCC_CHINA 0x434e - /* struct uefi_cnv_var_wrdd - WRDD table as defined in UEFI * @revision: the revision of the table * @mcc: country identifier as defined in ISO/IEC 3166-1 Alpha 2 code -- 2.43.0