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From: Hao Wu <hao.wu@rubrik.com>
To: Jarkko Sakkinen <jarkko@kernel.org>
Cc: Shrihari Kalkar <shrihari.kalkar@rubrik.com>,
	Seungyeop Han <seungyeop.han@rubrik.com>,
	Anish Jhaveri <anish.jhaveri@rubrik.com>,
	peterhuewe@gmx.de, jgg@ziepe.ca, linux-integrity@vger.kernel.org,
	Paul Menzel <pmenzel@molgen.mpg.de>,
	Ken Goldman <kgold@linux.ibm.com>,
	zohar@linux.vnet.ibm.com, why2jjj.linux@gmail.com,
	Hamza Attak <hamza@hpe.com>,
	gregkh@linuxfoundation.org, arnd@arndb.de,
	Nayna <nayna@linux.vnet.ibm.com>,
	James.Bottomley@hansenpartnership.com
Subject: Re: [PATCH v2] tpm: fix ATMEL TPM crash caused by too frequent queries
Date: Wed, 7 Jul 2021 11:28:35 -0700	[thread overview]
Message-ID: <712FD1C1-941C-4ABA-866D-6EA6AFA0FE9F@rubrik.com> (raw)
In-Reply-To: <20210707092411.onk6ewfmhxj5kf3v@kernel.org>

> On Jul 7, 2021, at 2:24 AM, Jarkko Sakkinen <jarkko@kernel.org> wrote:
> 
> On Tue, Jul 06, 2021 at 09:31:35PM -0700, Hao Wu wrote:
>> Since kernel 4.14, there was a commit (9f3fc7bcddcb)
>> fixed the TPM sleep logic from msleep to usleep_range,
>> so that the TPM sleeps exactly with TPM_TIMEOUT (=5ms) afterward.
>> Before that fix, msleep(5) actually sleeps for around 15ms.
> 
> What is TPM sleep logic?
It is about the commit metnioned in the description
`tpm: replace msleep() with usleep_range() in TPM 1.2/2.0 generic drivers`
https://github.com/torvalds/linux/commit/9f3fc7bcddcb51234e23494531f93ab60475e1c3

Any better description or terms ?

> 
> /Jarkko

Hao

  reply	other threads:[~2021-07-07 18:28 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-20 23:18 [PATCH] Fix Atmel TPM crash caused by too frequent queries Hao Wu
2021-06-23 13:35 ` Jarkko Sakkinen
2021-06-24  5:49   ` Hao Wu
2021-06-29 20:06     ` Jarkko Sakkinen
2021-06-30  4:27       ` Hao Wu
2021-06-24  5:33 ` Hao Wu
2021-06-29 20:07   ` Jarkko Sakkinen
2021-06-30  4:22   ` [PATCH] tpm: fix ATMEL " Hao Wu
2021-07-02  6:35     ` Jarkko Sakkinen
2021-07-02  7:12       ` Greg KH
2021-07-02  7:33       ` Hao Wu
2021-07-02  7:35         ` Hao Wu
2021-07-02  7:45         ` Jarkko Sakkinen
2021-07-02  7:59           ` Hao Wu
2021-07-02  8:42             ` Jarkko Sakkinen
2021-07-02 11:57               ` Jarkko Sakkinen
2021-07-02 19:16                 ` Hao Wu
2021-07-05  5:19                   ` Jarkko Sakkinen
2021-07-05  5:29                     ` Hao Wu
2021-07-04  0:07     ` Hao Wu
2021-07-05  7:15       ` Jarkko Sakkinen
2021-07-05 23:09         ` Hao Wu
2021-07-06 12:34           ` Mimi Zohar
2021-07-07  4:18             ` Hao Wu
2021-07-07  4:34               ` Hao Wu
2021-07-07  4:31     ` [PATCH v2] " Hao Wu
2021-07-07  9:24       ` Jarkko Sakkinen
2021-07-07 18:28         ` Hao Wu [this message]
2021-07-07 21:10           ` Jarkko Sakkinen
2021-07-09  4:43             ` Hao Wu
2021-07-09  4:40     ` [PATCH v2] tpm: fix Atmel " Hao Wu
2021-07-09 17:47       ` Jarkko Sakkinen
2021-07-09 19:23         ` Hao Wu
2021-07-11  7:37           ` Hao Wu
2021-07-16  5:30             ` Hao Wu
2021-07-11  7:51       ` [PATCH v3] " Hao Wu
2021-07-27  2:46         ` Jarkko Sakkinen
2021-07-27  3:40           ` Hao Wu
2021-08-14 22:25         ` [PATCH v4] " Hao Wu
2021-08-26  5:38           ` Hao Wu
2021-08-26 16:24             ` Jarkko Sakkinen
2021-08-27  0:35               ` Hao Wu
2021-09-04 21:14                 ` Hao Wu
2021-09-04 23:15                   ` Hao Wu
2021-09-05  3:51           ` [PATCH v5] " Hao Wu
2021-09-07 17:43             ` Jarkko Sakkinen
2021-09-08  8:33               ` Hao Wu

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