From: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
To: linux-integrity@vger.kernel.org
Cc: linux-security-module@vger.kernel.org,
James Bottomley <James.Bottomley@HansenPartnership.com>,
Tomas Winkler <tomas.winkler@intel.com>,
Tadeusz Struk <tadeusz.struk@intel.com>,
Stefan Berger <stefanb@linux.vnet.ibm.com>,
Nayna Jain <nayna@linux.ibm.com>,
Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>,
Peter Huewe <peterhuewe@gmx.de>, Jason Gunthorpe <jgg@ziepe.ca>,
Arnd Bergmann <arnd@arndb.de>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-kernel@vger.kernel.org (open list)
Subject: [PATCH v7 06/17] tpm: access command header through struct in tpm_try_transmit()
Date: Tue, 13 Nov 2018 20:36:05 +0200 [thread overview]
Message-ID: <20181113183620.27447-7-jarkko.sakkinen@linux.intel.com> (raw)
In-Reply-To: <20181113183620.27447-1-jarkko.sakkinen@linux.intel.com>
Instead of accessing fields of the command header through offsets to
the raw buffer, it is a better idea to use the header struct pointer
that is already used elsewhere in the function.
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
---
drivers/char/tpm/tpm-interface.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c
index cb0d44c158ae..11af50646ed1 100644
--- a/drivers/char/tpm/tpm-interface.c
+++ b/drivers/char/tpm/tpm-interface.c
@@ -191,8 +191,8 @@ static ssize_t tpm_try_transmit(struct tpm_chip *chip,
if (bufsiz > TPM_BUFSIZE)
bufsiz = TPM_BUFSIZE;
- count = be32_to_cpu(*((__be32 *) (buf + 2)));
- ordinal = be32_to_cpu(*((__be32 *) (buf + 6)));
+ count = be32_to_cpu(header->length);
+ ordinal = be32_to_cpu(header->ordinal);
if (count == 0)
return -ENODATA;
if (count > bufsiz) {
--
2.19.1
next prev parent reply other threads:[~2018-11-13 18:37 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-13 18:35 [PATCH v7 00/17] Removed nested TPM operations Jarkko Sakkinen
2018-11-13 18:36 ` [PATCH v7 01/17] tpm: use tpm_buf in tpm_transmit_cmd() as the IO parameter Jarkko Sakkinen
2018-11-13 18:36 ` [PATCH v7 02/17] tpm: fix invalid return value in pubek_show() Jarkko Sakkinen
2018-11-13 18:36 ` [PATCH v7 03/17] tpm: return 0 from pcrs_show() when tpm1_pcr_read() fails Jarkko Sakkinen
2018-11-13 18:36 ` [PATCH v7 04/17] tpm: print tpm2_commit_space() error inside tpm2_commit_space() Jarkko Sakkinen
2018-11-13 18:36 ` [PATCH v7 05/17] tpm: declare struct tpm_header Jarkko Sakkinen
2018-11-13 18:36 ` Jarkko Sakkinen [this message]
2018-11-13 18:36 ` [PATCH v7 07/17] tpm: encapsulate tpm_dev_transmit() Jarkko Sakkinen
2018-11-13 18:36 ` [PATCH v7 08/17] tpm: call tpm2_flush_space() on error in tpm_try_transmit() Jarkko Sakkinen
2018-11-13 18:36 ` [PATCH v7 09/17] tpm: clean up tpm_try_transmit() error handling flow Jarkko Sakkinen
2018-11-13 18:36 ` [PATCH v7 10/17] tpm: move tpm_validate_commmand() to tpm2-space.c Jarkko Sakkinen
2018-11-13 18:36 ` [PATCH v7 11/17] tpm: move TPM space code out of tpm_transmit() Jarkko Sakkinen
2018-11-13 18:36 ` [PATCH v7 12/17] tpm: remove @space from tpm_transmit() Jarkko Sakkinen
2018-11-13 18:36 ` [PATCH v7 13/17] tpm: use tpm_try_get_ops() in tpm-sysfs.c Jarkko Sakkinen
2018-11-13 18:36 ` [PATCH v7 14/17] tpm: remove TPM_TRANSMIT_UNLOCKED flag Jarkko Sakkinen
2018-11-13 20:39 ` Stefan Berger
2018-11-13 18:36 ` [PATCH v7 15/17] tpm: introduce tpm_chip_start() and tpm_chip_stop() Jarkko Sakkinen
2018-11-13 21:17 ` Stefan Berger
2018-11-13 22:34 ` Stefan Berger
2018-11-14 1:56 ` Stefan Berger
2018-11-16 12:32 ` Jarkko Sakkinen
2018-11-15 20:26 ` Jarkko Sakkinen
2018-11-13 23:02 ` Stefan Berger
2018-11-14 1:47 ` Stefan Berger
2018-11-13 18:36 ` [PATCH v7 16/17] tpm: take TPM chip power gating out of tpm_transmit() Jarkko Sakkinen
2018-11-13 21:26 ` Stefan Berger
2018-11-13 18:36 ` [PATCH v7 17/17] tpm: remove @flags from tpm_transmit() Jarkko Sakkinen
2018-11-13 21:28 ` Stefan Berger
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