From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751493AbdEBMdB (ORCPT ); Tue, 2 May 2017 08:33:01 -0400 Received: from lhrrgout.huawei.com ([194.213.3.17]:25480 "EHLO lhrrgout.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750740AbdEBMc6 (ORCPT ); Tue, 2 May 2017 08:32:58 -0400 From: Roberto Sassu To: CC: , , , Roberto Sassu Subject: [PATCH 1/3] tpm: use CPU native value for TPM_TAG_RQU_COMMAND Date: Tue, 2 May 2017 14:31:49 +0200 Message-ID: <20170502123151.24354-2-roberto.sassu@huawei.com> X-Mailer: git-send-email 2.9.3 In-Reply-To: <20170502123151.24354-1-roberto.sassu@huawei.com> References: <20170502123151.24354-1-roberto.sassu@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.204.66.1] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020206.59087C69.022E,ss=1,re=0.000,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0, ip=0.0.0.0, so=2013-06-18 04:22:30, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: ff6d26b6a5f074ca621ee1459f5564b1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org In the long term, TPM 1.2 functions in the driver interface will be converted to use tpm_buf_init(). However, tag and ordinals cannot be passed directly to tpm_buf_init(), because this function performs CPU native to big-endian conversion of these arguments. Since TPM_TAG_RQU_COMMAND and TPM_ORD_ are already converted, passing them to the function will undo the previous conversion. This patch removes the definition of TPM_TAG_RQU_COMMAND in the tpm driver directory, and uses the CPU native value defined in include/linux/tpm_command.h. The conversion of TPM_TAG_RQU_COMMAND is done in the tpm_input_header declarations. Signed-off-by: Roberto Sassu --- drivers/char/tpm/tpm-interface.c | 15 ++++++++------- drivers/char/tpm/tpm-sysfs.c | 3 ++- drivers/char/tpm/tpm.h | 2 -- 3 files changed, 10 insertions(+), 10 deletions(-) diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c index bd2128e..48f5dff 100644 --- a/drivers/char/tpm/tpm-interface.c +++ b/drivers/char/tpm/tpm-interface.c @@ -30,6 +30,7 @@ #include #include #include +#include #include "tpm.h" #include "tpm_eventlog.h" @@ -472,7 +473,7 @@ ssize_t tpm_transmit_cmd(struct tpm_chip *chip, const void *buf, #define TPM_ORD_GET_RANDOM cpu_to_be32(70) static const struct tpm_input_header tpm_getcap_header = { - .tag = TPM_TAG_RQU_COMMAND, + .tag = cpu_to_be16(TPM_TAG_RQU_COMMAND), .length = cpu_to_be32(22), .ordinal = TPM_ORD_GET_CAP }; @@ -514,7 +515,7 @@ EXPORT_SYMBOL_GPL(tpm_getcap); #define TPM_ST_STATE cpu_to_be16(2) #define TPM_ST_DEACTIVATED cpu_to_be16(3) static const struct tpm_input_header tpm_startup_header = { - .tag = TPM_TAG_RQU_COMMAND, + .tag = cpu_to_be16(TPM_TAG_RQU_COMMAND), .length = cpu_to_be32(12), .ordinal = TPM_ORD_STARTUP }; @@ -664,7 +665,7 @@ EXPORT_SYMBOL_GPL(tpm_get_timeouts); #define CONTINUE_SELFTEST_RESULT_SIZE 10 static const struct tpm_input_header continue_selftest_header = { - .tag = TPM_TAG_RQU_COMMAND, + .tag = cpu_to_be16(TPM_TAG_RQU_COMMAND), .length = cpu_to_be32(10), .ordinal = cpu_to_be32(TPM_ORD_CONTINUE_SELFTEST), }; @@ -691,7 +692,7 @@ static int tpm_continue_selftest(struct tpm_chip *chip) #define READ_PCR_RESULT_SIZE 30 #define READ_PCR_RESULT_BODY_SIZE 20 static const struct tpm_input_header pcrread_header = { - .tag = TPM_TAG_RQU_COMMAND, + .tag = cpu_to_be16(TPM_TAG_RQU_COMMAND), .length = cpu_to_be32(14), .ordinal = TPM_ORDINAL_PCRREAD }; @@ -769,7 +770,7 @@ EXPORT_SYMBOL_GPL(tpm_pcr_read); #define EXTEND_PCR_RESULT_SIZE 34 #define EXTEND_PCR_RESULT_BODY_SIZE 20 static const struct tpm_input_header pcrextend_header = { - .tag = TPM_TAG_RQU_COMMAND, + .tag = cpu_to_be16(TPM_TAG_RQU_COMMAND), .length = cpu_to_be32(34), .ordinal = TPM_ORD_PCR_EXTEND }; @@ -991,7 +992,7 @@ EXPORT_SYMBOL_GPL(wait_for_tpm_stat); #define SAVESTATE_RESULT_SIZE 10 static const struct tpm_input_header savestate_header = { - .tag = TPM_TAG_RQU_COMMAND, + .tag = cpu_to_be16(TPM_TAG_RQU_COMMAND), .length = cpu_to_be32(10), .ordinal = TPM_ORD_SAVESTATE }; @@ -1076,7 +1077,7 @@ EXPORT_SYMBOL_GPL(tpm_pm_resume); #define TPM_GETRANDOM_RESULT_SIZE 18 static const struct tpm_input_header tpm_getrandom_header = { - .tag = TPM_TAG_RQU_COMMAND, + .tag = cpu_to_be16(TPM_TAG_RQU_COMMAND), .length = cpu_to_be32(14), .ordinal = TPM_ORD_GET_RANDOM }; diff --git a/drivers/char/tpm/tpm-sysfs.c b/drivers/char/tpm/tpm-sysfs.c index 2f596d7..69a0741 100644 --- a/drivers/char/tpm/tpm-sysfs.c +++ b/drivers/char/tpm/tpm-sysfs.c @@ -18,13 +18,14 @@ * */ #include +#include #include "tpm.h" #define READ_PUBEK_RESULT_SIZE 314 #define READ_PUBEK_RESULT_MIN_BODY_SIZE (28 + 256) #define TPM_ORD_READPUBEK cpu_to_be32(124) static const struct tpm_input_header tpm_readpubek_header = { - .tag = TPM_TAG_RQU_COMMAND, + .tag = cpu_to_be16(TPM_TAG_RQU_COMMAND), .length = cpu_to_be32(30), .ordinal = TPM_ORD_READPUBEK }; diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h index 4937b56..d88c462 100644 --- a/drivers/char/tpm/tpm.h +++ b/drivers/char/tpm/tpm.h @@ -215,8 +215,6 @@ struct tpm_output_header { __be32 return_code; } __packed; -#define TPM_TAG_RQU_COMMAND cpu_to_be16(193) - struct stclear_flags_t { __be16 tag; u8 deactivated; -- 2.9.3