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From: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
To: Roberto Sassu <roberto.sassu@huawei.com>
Cc: zohar@linux.ibm.com, david.safford@ge.com, monty.wiseman@ge.com,
	matthewgarrett@google.com, linux-integrity@vger.kernel.org,
	linux-security-module@vger.kernel.org,
	linux-kernel@vger.kernel.org, keyrings@vger.kernel.org,
	silviu.vlasceanu@huawei.com
Subject: Re: [PATCH v8 5/7] tpm: move tpm_chip definition to include/linux/tpm.h
Date: Thu, 31 Jan 2019 16:05:52 +0000	[thread overview]
Message-ID: <20190131160552.GB5629@linux.intel.com> (raw)
In-Reply-To: <011ba997-3a09-8c68-cad2-9733e79e6d0d@huawei.com>

On Thu, Jan 31, 2019 at 08:54:50AM +0100, Roberto Sassu wrote:
> On 1/29/2019 9:34 PM, Jarkko Sakkinen wrote:
> > On Thu, Jan 24, 2019 at 04:49:08PM +0100, Roberto Sassu wrote:
> > > -enum tpm_const {
> > > -	TPM_MINOR = 224,	/* officially assigned */
> > > -	TPM_BUFSIZE = 4096,
> > > -	TPM_NUM_DEVICES = 65536,
> > > -	TPM_RETRY = 50,		/* 5 seconds */
> > > -	TPM_NUM_EVENT_LOG_FILES = 3,
> > > -};
> > 
> > Here using enum has been a bad idea in the first place, as they don't
> > relate in any meaningful way.
> > 
> > Replace the definition with the following in drivers/char/tpm/tpm.h:
> > 
> > #define TPM_MINOR	224 /* misc backwards compatibility */
> > #define TPM_BUFSIZE	4096
> > #define TPM_NUM_DEVICES	65536
> > #define TPM_RETRY	5 /* seconds */
> 
> Is 5 correct? TPM_RETRY was 50 before.

No it isn't.

Do no take this by word, I just showed the idea...

/Jarkko

WARNING: multiple messages have this Message-ID (diff)
From: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
To: Roberto Sassu <roberto.sassu@huawei.com>
Cc: zohar@linux.ibm.com, david.safford@ge.com, monty.wiseman@ge.com,
	matthewgarrett@google.com, linux-integrity@vger.kernel.org,
	linux-security-module@vger.kernel.org,
	linux-kernel@vger.kernel.org, keyrings@vger.kernel.org,
	silviu.vlasceanu@huawei.com
Subject: Re: [PATCH v8 5/7] tpm: move tpm_chip definition to include/linux/tpm.h
Date: Thu, 31 Jan 2019 18:05:52 +0200	[thread overview]
Message-ID: <20190131160552.GB5629@linux.intel.com> (raw)
In-Reply-To: <011ba997-3a09-8c68-cad2-9733e79e6d0d@huawei.com>

On Thu, Jan 31, 2019 at 08:54:50AM +0100, Roberto Sassu wrote:
> On 1/29/2019 9:34 PM, Jarkko Sakkinen wrote:
> > On Thu, Jan 24, 2019 at 04:49:08PM +0100, Roberto Sassu wrote:
> > > -enum tpm_const {
> > > -	TPM_MINOR = 224,	/* officially assigned */
> > > -	TPM_BUFSIZE = 4096,
> > > -	TPM_NUM_DEVICES = 65536,
> > > -	TPM_RETRY = 50,		/* 5 seconds */
> > > -	TPM_NUM_EVENT_LOG_FILES = 3,
> > > -};
> > 
> > Here using enum has been a bad idea in the first place, as they don't
> > relate in any meaningful way.
> > 
> > Replace the definition with the following in drivers/char/tpm/tpm.h:
> > 
> > #define TPM_MINOR	224 /* misc backwards compatibility */
> > #define TPM_BUFSIZE	4096
> > #define TPM_NUM_DEVICES	65536
> > #define TPM_RETRY	5 /* seconds */
> 
> Is 5 correct? TPM_RETRY was 50 before.

No it isn't.

Do no take this by word, I just showed the idea...

/Jarkko

  reply	other threads:[~2019-01-31 16:05 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-24 15:49 [PATCH v8 0/7] tpm: retrieve digest size of unknown algorithms from TPM Roberto Sassu
2019-01-24 15:49 ` Roberto Sassu
2019-01-24 15:49 ` [PATCH v8 1/7] tpm: dynamically allocate the allocated_banks array Roberto Sassu
2019-01-24 15:49   ` Roberto Sassu
2019-01-29 19:29   ` Jarkko Sakkinen
2019-01-29 19:29     ` Jarkko Sakkinen
2019-01-30  7:52     ` Roberto Sassu
2019-01-30  7:52       ` Roberto Sassu
2019-01-30 12:01       ` Jarkko Sakkinen
2019-01-30 12:01         ` Jarkko Sakkinen
2019-01-24 15:49 ` [PATCH v8 2/7] tpm: add _head suffix to tcg_efi_specid_event and tcg_pcr_event2 Roberto Sassu
2019-01-24 15:49   ` Roberto Sassu
2019-01-29 19:37   ` Jarkko Sakkinen
2019-01-29 19:37     ` Jarkko Sakkinen
2019-01-24 15:49 ` [PATCH v8 3/7] tpm: rename and export tpm2_digest and tpm2_algorithms Roberto Sassu
2019-01-24 15:49   ` Roberto Sassu
2019-01-24 15:49 ` [PATCH v8 4/7] tpm: retrieve digest size of unknown algorithms with PCR read Roberto Sassu
2019-01-24 15:49   ` Roberto Sassu
2019-01-29 20:14   ` Jarkko Sakkinen
2019-01-29 20:14     ` Jarkko Sakkinen
2019-01-24 15:49 ` [PATCH v8 5/7] tpm: move tpm_chip definition to include/linux/tpm.h Roberto Sassu
2019-01-24 15:49   ` Roberto Sassu
2019-01-29 20:34   ` Jarkko Sakkinen
2019-01-29 20:34     ` Jarkko Sakkinen
2019-01-31  7:54     ` Roberto Sassu
2019-01-31  7:54       ` Roberto Sassu
2019-01-31 16:05       ` Jarkko Sakkinen [this message]
2019-01-31 16:05         ` Jarkko Sakkinen
2019-01-24 15:49 ` [PATCH v8 6/7] KEYS: trusted: explicitly use tpm_chip structure from tpm_default_chip() Roberto Sassu
2019-01-24 15:49   ` Roberto Sassu
2019-01-29 20:43   ` Jarkko Sakkinen
2019-01-29 20:43     ` Jarkko Sakkinen
2019-01-24 15:49 ` [PATCH v8 7/7] tpm: pass an array of tpm_extend_digest structures to tpm_pcr_extend() Roberto Sassu
2019-01-24 15:49   ` Roberto Sassu
2019-01-29 21:02   ` Jarkko Sakkinen
2019-01-29 21:02     ` Jarkko Sakkinen

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