linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Guenter Roeck <linux@roeck-us.net>
To: "Jarkko Sakkinen" <jarkko@kernel.org>,
	"Łukasz Majczak" <lma@semihalf.com>
Cc: Peter Huewe <peterhuewe@gmx.de>, Jason Gunthorpe <jgg@ziepe.ca>,
	linux-integrity@vger.kernel.org, linux-kernel@vger.kernel.org,
	Radoslaw Biernacki <rad@semihalf.com>,
	Marcin Wojtas <mw@semihalf.com>, Alex Levin <levinale@google.com>,
	James.Bottomley@hansenpartnership.com
Subject: Re: [PATCH] tpm_tis: Add missing start/stop_tpm_chip calls
Date: Sat, 30 Jan 2021 15:49:09 -0800	[thread overview]
Message-ID: <7a702108-ec9e-b2e2-be89-3590437c0eb5@roeck-us.net> (raw)
In-Reply-To: <YBSTOrlgTPpzoblY@kernel.org>

On 1/29/21 2:59 PM, Jarkko Sakkinen wrote:
> On Tue, Jan 26, 2021 at 04:46:07PM +0100, Łukasz Majczak wrote:
>> Hi Jarkko, Guenter
>>
>> Yes, here are the logs when failure occurs -
>> https://gist.github.com/semihalf-majczak-lukasz/1575461f585f1e7fb1e9366b8eceaab9
>> Look for a phrase "TPM returned invalid status"
>>
>> Guenter - good suggestion - I will try to keep it as tight as possible.
>>
>> Best regards,
>> Lukasz
> 
> Is it possible for you try out with linux-next? Thanks. It's a known
> issue, which ought to be fixed by now.
> 
> The log message is harmless, it'a warning not panic, and does not
> endanger system stability. WARN()'s always dump stack trace. No oops
> is happening.
> 

There is a note in the kernel documentation which states:

Note that the WARN()-family should only be used for "expected to
be unreachable" situations. If you want to warn about "reachable
but undesirable" situations, please use the pr_warn()-family of
functions.

It seems to me that "harmless" doesn't really fit the expected
use of WARN(). Should it possibly be converted to pr_warn() ?

Thanks,
Guenter


  parent reply	other threads:[~2021-01-30 23:52 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-23  1:42 [PATCH] tpm_tis: Add missing start/stop_tpm_chip calls Lukasz Majczak
2021-01-25 17:12 ` Jarkko Sakkinen
2021-01-25 17:18 ` Guenter Roeck
2021-01-26 15:46   ` Łukasz Majczak
2021-01-26 16:46     ` James Bottomley
2021-01-26 18:55       ` Tj (Elloe Linux)
2021-01-28  5:58       ` Jarkko Sakkinen
2021-01-29 22:59     ` Jarkko Sakkinen
2021-01-29 23:00       ` Jarkko Sakkinen
2021-01-30 23:49       ` Guenter Roeck [this message]
2021-01-31  0:41         ` James Bottomley
2021-01-31  3:36           ` Guenter Roeck
2021-01-31  4:18             ` James Bottomley
2021-02-02 16:17           ` Jarkko Sakkinen
2021-02-02 15:33         ` Jarkko Sakkinen
2021-01-29 22:49   ` Jarkko Sakkinen
2021-01-29 23:32     ` Guenter Roeck
2021-01-28 13:07 ` [PATCH v2] tpm_tis: Add missing tpm_request/relinquish_locality calls Lukasz Majczak
2021-01-28 17:37   ` Guenter Roeck
2021-01-30 20:40   ` Jarkko Sakkinen
2021-01-30 20:47     ` Jarkko Sakkinen
     [not found]     ` <ghwnvtwifq.fsf@gouders.net>
2021-02-02 16:29       ` Jarkko Sakkinen
2021-02-02 15:51   ` [PATCH v3] " Lukasz Majczak
2021-02-02 16:29     ` Guenter Roeck
2021-02-02 22:35       ` Jarkko Sakkinen
2021-02-02 18:47     ` Dirk Gouders
2021-02-03 11:46       ` Dirk Gouders
2021-02-03 13:43         ` Lukasz Majczak
2021-02-03 23:24           ` Jarkko Sakkinen
2021-02-02 19:57     ` [PATCH v4] " Lukasz Majczak
2021-02-02 21:49       ` Jarkko Sakkinen
2021-02-02 21:49     ` [PATCH v3] " Jarkko Sakkinen
2021-02-03  0:05       ` Jarkko Sakkinen
2021-02-03  0:07         ` Jarkko Sakkinen

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=7a702108-ec9e-b2e2-be89-3590437c0eb5@roeck-us.net \
    --to=linux@roeck-us.net \
    --cc=James.Bottomley@hansenpartnership.com \
    --cc=jarkko@kernel.org \
    --cc=jgg@ziepe.ca \
    --cc=levinale@google.com \
    --cc=linux-integrity@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=lma@semihalf.com \
    --cc=mw@semihalf.com \
    --cc=peterhuewe@gmx.de \
    --cc=rad@semihalf.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).