From: Joe Perches <joe@perches.com>
To: James Bottomley <James.Bottomley@HansenPartnership.com>,
SF Markus Elfring <elfring@users.sourceforge.net>,
Dan Carpenter <dan.carpenter@oracle.com>,
linux-integrity@vger.kernel.org, linuxppc-dev@lists.ozlabs.org
Cc: "Jarkko Sakkinen" <jarkko.sakkinen@linux.intel.com>,
"Andy Shevchenko" <andriy.shevchenko@linux.intel.com>,
"Benjamin Herrenschmidt" <benh@kernel.crashing.org>,
"Corentin Labbe" <clabbe.montjoie@gmail.com>,
"Jason Gunthorpe" <jgunthorpe@obsidianresearch.com>,
"Jerry Snitselaar" <jsnitsel@redhat.com>,
"Kenneth Goldman" <kgold@linux.vnet.ibm.com>,
"Michael Ellerman" <mpe@ellerman.id.au>,
"Nayna Jain" <nayna@linux.vnet.ibm.com>,
"Paul Mackerras" <paulus@samba.org>,
"Peter Hüwe" <PeterHuewe@gmx.de>,
"Stefan Berger" <stefanb@linux.vnet.ibm.com>,
LKML <linux-kernel@vger.kernel.org>,
kernel-janitors@vger.kernel.org
Subject: Re: [PATCH 0/4] char-TPM: Adjustments for ten function implementations
Date: Tue, 17 Oct 2017 22:43:30 +0000 [thread overview]
Message-ID: <1508280210.6530.32.camel@perches.com> (raw)
In-Reply-To: <1508255833.3129.33.camel@HansenPartnership.com>
On Tue, 2017-10-17 at 08:57 -0700, James Bottomley wrote:
> On Tue, 2017-10-17 at 11:25 +0200, SF Markus Elfring wrote:
> > >
> > > Fixes is only for bug fixes. These don't fix any bugs.
> >
> > How do you distinguish these in questionable source code
> > from other error categories or software weaknesses?
>
> A style change is one that doesn't change the effect of the execution.
> These don't actually even change the assembly, so there's programmatic
> proof they're not fixing anything.
The printk removals do change the objects.
The value of that type of change is only for
resource limited systems.
printk type changes should generally not be
considered fixes.
> Bug means potentially user visible fault. In any bug fix commit you
> should document the fault and its effects on users so those backporting
> can decide if they care or not.
Markus' changelogs leave much to be desired.
--
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WARNING: multiple messages have this Message-ID (diff)
From: Joe Perches <joe@perches.com>
To: James Bottomley <James.Bottomley@HansenPartnership.com>,
SF Markus Elfring <elfring@users.sourceforge.net>,
Dan Carpenter <dan.carpenter@oracle.com>,
linux-integrity@vger.kernel.org, linuxppc-dev@lists.ozlabs.org
Cc: "Jarkko Sakkinen" <jarkko.sakkinen@linux.intel.com>,
"Andy Shevchenko" <andriy.shevchenko@linux.intel.com>,
"Benjamin Herrenschmidt" <benh@kernel.crashing.org>,
"Corentin Labbe" <clabbe.montjoie@gmail.com>,
"Jason Gunthorpe" <jgunthorpe@obsidianresearch.com>,
"Jerry Snitselaar" <jsnitsel@redhat.com>,
"Kenneth Goldman" <kgold@linux.vnet.ibm.com>,
"Michael Ellerman" <mpe@ellerman.id.au>,
"Nayna Jain" <nayna@linux.vnet.ibm.com>,
"Paul Mackerras" <paulus@samba.org>,
"Peter Hüwe" <PeterHuewe@gmx.de>,
"Stefan Berger" <stefanb@linux.vnet.ibm.com>,
LKML <linux-kernel@vger.kernel.org>,
kernel-janitors@vger.kernel.org
Subject: Re: [PATCH 0/4] char-TPM: Adjustments for ten function implementations
Date: Tue, 17 Oct 2017 15:43:30 -0700 [thread overview]
Message-ID: <1508280210.6530.32.camel@perches.com> (raw)
In-Reply-To: <1508255833.3129.33.camel@HansenPartnership.com>
On Tue, 2017-10-17 at 08:57 -0700, James Bottomley wrote:
> On Tue, 2017-10-17 at 11:25 +0200, SF Markus Elfring wrote:
> > >
> > > Fixes is only for bug fixes. These don't fix any bugs.
> >
> > How do you distinguish these in questionable source code
> > from other error categories or software weaknesses?
>
> A style change is one that doesn't change the effect of the execution.
> These don't actually even change the assembly, so there's programmatic
> proof they're not fixing anything.
The printk removals do change the objects.
The value of that type of change is only for
resource limited systems.
printk type changes should generally not be
considered fixes.
> Bug means potentially user visible fault. In any bug fix commit you
> should document the fault and its effects on users so those backporting
> can decide if they care or not.
Markus' changelogs leave much to be desired.
WARNING: multiple messages have this Message-ID (diff)
From: Joe Perches <joe@perches.com>
To: James Bottomley <James.Bottomley@HansenPartnership.com>,
SF Markus Elfring <elfring@users.sourceforge.net>,
Dan Carpenter <dan.carpenter@oracle.com>,
linux-integrity@vger.kernel.org, linuxppc-dev@lists.ozlabs.org
Cc: "Jarkko Sakkinen" <jarkko.sakkinen@linux.intel.com>,
"Andy Shevchenko" <andriy.shevchenko@linux.intel.com>,
"Benjamin Herrenschmidt" <benh@kernel.crashing.org>,
"Corentin Labbe" <clabbe.montjoie@gmail.com>,
"Jason Gunthorpe" <jgunthorpe@obsidianresearch.com>,
"Jerry Snitselaar" <jsnitsel@redhat.com>,
"Kenneth Goldman" <kgold@linux.vnet.ibm.com>,
"Michael Ellerman" <mpe@ellerman.id.au>,
"Nayna Jain" <nayna@linux.vnet.ibm.com>,
"Paul Mackerras" <paulus@samba.org>,
"Peter Hüwe" <PeterHuewe@gmx.de>,
"Stefan Berger" <stefanb@linux.vnet.ibm.com>,
LKML <linux-kernel@vger.kernel.org>,
kernel-janitors@vger.kernel.org
Subject: Re: [PATCH 0/4] char-TPM: Adjustments for ten function implementations
Date: Tue, 17 Oct 2017 15:43:30 -0700 [thread overview]
Message-ID: <1508280210.6530.32.camel@perches.com> (raw)
In-Reply-To: <1508255833.3129.33.camel@HansenPartnership.com>
On Tue, 2017-10-17 at 08:57 -0700, James Bottomley wrote:
> On Tue, 2017-10-17 at 11:25 +0200, SF Markus Elfring wrote:
> > >
> > > Fixes is only for bug fixes. These don't fix any bugs.
> >
> > How do you distinguish these in questionable source code
> > from other error categories or software weaknesses?
>
> A style change is one that doesn't change the effect of the execution.
> These don't actually even change the assembly, so there's programmatic
> proof they're not fixing anything.
The printk removals do change the objects.
The value of that type of change is only for
resource limited systems.
printk type changes should generally not be
considered fixes.
> Bug means potentially user visible fault. In any bug fix commit you
> should document the fault and its effects on users so those backporting
> can decide if they care or not.
Markus' changelogs leave much to be desired.
next prev parent reply other threads:[~2017-10-17 22:43 UTC|newest]
Thread overview: 217+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-16 17:30 [PATCH 0/4] char-TPM: Adjustments for ten function implementations SF Markus Elfring
2017-10-16 17:30 ` SF Markus Elfring
2017-10-16 17:31 ` [PATCH 1/4] char/tpm: Delete an error message for a failed memory allocation in tpm_ascii_bios_measu SF Markus Elfring
2017-10-16 17:31 ` [PATCH 1/4] char/tpm: Delete an error message for a failed memory allocation in tpm_ascii_bios_measurements_show() SF Markus Elfring
2017-10-16 17:32 ` [PATCH 2/4] char/tpm: Delete an error message for a failed memory allocation in tpm_ibmvtpm_probe() SF Markus Elfring
2017-10-16 17:32 ` SF Markus Elfring
2017-10-16 17:33 ` [PATCH 3/4] char/tpm: Improve a size determination in nine functions SF Markus Elfring
2017-10-16 17:33 ` SF Markus Elfring
2017-10-17 11:03 ` Andy Shevchenko
2017-10-17 11:03 ` Andy Shevchenko
2017-10-17 11:50 ` Alexander.Steffen
2017-10-17 11:50 ` Alexander.Steffen
2017-10-17 11:50 ` Alexander.Steffen
2017-10-17 12:52 ` Mimi Zohar
2017-10-17 12:52 ` Mimi Zohar
2017-10-17 12:52 ` Mimi Zohar
2017-10-17 12:58 ` Julia Lawall
2017-10-17 12:58 ` Julia Lawall
2017-10-17 12:58 ` Julia Lawall
2017-10-17 15:17 ` Mimi Zohar
2017-10-17 15:17 ` Mimi Zohar
2017-10-17 15:17 ` Mimi Zohar
2017-10-17 15:29 ` Julia Lawall
2017-10-17 15:29 ` Julia Lawall
2017-10-17 15:29 ` Julia Lawall
2017-10-18 9:16 ` Alexander.Steffen
2017-10-18 9:16 ` Alexander.Steffen
2017-10-18 9:16 ` Alexander.Steffen
2017-10-18 9:16 ` Alexander.Steffen
2017-10-17 18:41 ` SF Markus Elfring
2017-10-17 18:41 ` SF Markus Elfring
2017-10-17 18:41 ` SF Markus Elfring
2017-10-17 19:28 ` Mimi Zohar
2017-10-17 19:28 ` Mimi Zohar
2017-10-17 19:28 ` Mimi Zohar
2017-10-17 20:04 ` SF Markus Elfring
2017-10-17 20:04 ` SF Markus Elfring
2017-10-17 20:04 ` SF Markus Elfring
2017-10-17 19:36 ` Andy Shevchenko
2017-10-17 19:36 ` Andy Shevchenko
2017-10-17 20:24 ` SF Markus Elfring
2017-10-17 20:24 ` SF Markus Elfring
2017-10-18 14:57 ` Jarkko Sakkinen
2017-10-18 14:57 ` Jarkko Sakkinen
2017-10-18 14:57 ` Jarkko Sakkinen
2017-10-18 15:22 ` SF Markus Elfring
2017-10-18 15:22 ` SF Markus Elfring
2017-10-18 15:22 ` SF Markus Elfring
2017-10-18 15:59 ` Jarkko Sakkinen
2017-10-18 15:59 ` Jarkko Sakkinen
2017-10-18 15:59 ` Jarkko Sakkinen
2017-10-18 16:43 ` SF Markus Elfring
2017-10-18 16:43 ` SF Markus Elfring
2017-10-18 16:43 ` SF Markus Elfring
2017-10-18 17:18 ` Jarkko Sakkinen
2017-10-18 17:18 ` Jarkko Sakkinen
2017-10-18 17:18 ` Jarkko Sakkinen
2017-10-18 17:22 ` Jarkko Sakkinen
2017-10-18 17:22 ` Jarkko Sakkinen
2017-10-18 17:22 ` Jarkko Sakkinen
2017-10-18 17:54 ` SF Markus Elfring
2017-10-18 17:54 ` SF Markus Elfring
2017-10-18 17:48 ` SF Markus Elfring
2017-10-18 17:48 ` SF Markus Elfring
2017-10-18 17:48 ` SF Markus Elfring
2017-10-18 17:54 ` Jerry Snitselaar
2017-10-18 17:54 ` Jerry Snitselaar
2017-10-18 17:54 ` Jerry Snitselaar
2017-10-18 18:11 ` char/tpm: Delete an error message for a failed memory =?UTF-8?B?IGFsbG9jYXRpb24gaW4g SF Markus Elfring
2017-10-18 18:11 ` char/tpm: Delete an error message for a failed memory allocation in tpm_…() SF Markus Elfring
2017-10-18 18:11 ` SF Markus Elfring
2017-10-18 18:03 ` char/tpm: Improve a size determination in nine functions Andy Shevchenko
2017-10-18 18:03 ` Andy Shevchenko
2017-10-19 12:04 ` Michal Suchánek
2017-10-19 12:04 ` Michal Suchánek
2017-10-19 12:16 ` Jarkko Sakkinen
2017-10-19 12:16 ` Jarkko Sakkinen
2017-10-19 12:16 ` Jarkko Sakkinen
2017-10-17 13:02 ` [PATCH 3/4] " Andy Shevchenko
2017-10-17 13:02 ` Andy Shevchenko
2017-10-18 14:52 ` Jarkko Sakkinen
2017-10-18 14:52 ` Jarkko Sakkinen
2017-10-17 15:22 ` Alexander.Steffen
2017-10-17 15:22 ` Alexander.Steffen
2017-10-17 15:22 ` Alexander.Steffen
2017-10-17 15:22 ` Alexander.Steffen
2017-10-18 14:48 ` Jarkko Sakkinen
2017-10-18 14:48 ` Jarkko Sakkinen
2017-10-19 16:58 ` Alexander.Steffen
2017-10-19 16:58 ` Alexander.Steffen
2017-10-19 16:58 ` Alexander.Steffen
2017-10-20 9:01 ` Jarkko Sakkinen
2017-10-20 9:01 ` Jarkko Sakkinen
2017-10-20 10:23 ` Jarkko Sakkinen
2017-10-20 10:23 ` Jarkko Sakkinen
2017-10-20 12:03 ` Alexander.Steffen
2017-10-20 12:03 ` Alexander.Steffen
2017-10-20 12:03 ` Alexander.Steffen
2017-10-23 13:20 ` Dan Carpenter
2017-10-23 13:20 ` Dan Carpenter
2017-10-18 14:40 ` Jarkko Sakkinen
2017-10-18 14:40 ` Jarkko Sakkinen
2017-10-16 17:34 ` [PATCH 4/4] char/tpm: Less checks in tpm_ibmvtpm_probe() after error detection SF Markus Elfring
2017-10-16 17:34 ` SF Markus Elfring
2017-10-19 11:56 ` Michal Suchánek
2017-10-19 11:56 ` Michal Suchánek
2017-10-19 12:36 ` SF Markus Elfring
2017-10-19 12:36 ` SF Markus Elfring
2017-10-19 12:46 ` Michal Suchánek
2017-10-19 12:46 ` Michal Suchánek
2017-10-19 14:26 ` Dan Carpenter
2017-10-19 14:26 ` Dan Carpenter
2017-10-19 13:36 ` Dan Carpenter
2017-10-19 13:36 ` Dan Carpenter
2017-10-19 13:36 ` Dan Carpenter
2017-10-19 14:16 ` Michal Suchánek
2017-10-19 14:16 ` Michal Suchánek
2017-10-19 14:16 ` Michal Suchánek
2017-10-19 14:16 ` Michal Suchánek
2017-10-19 14:59 ` Dan Carpenter
2017-10-19 14:59 ` Dan Carpenter
2017-10-19 14:59 ` Dan Carpenter
2017-10-19 20:44 ` SF Markus Elfring
2017-10-19 20:44 ` SF Markus Elfring
2017-10-19 20:44 ` SF Markus Elfring
2017-10-16 18:31 ` [PATCH 0/4] char-TPM: Adjustments for ten function implementations Jarkko Sakkinen
2017-10-16 18:31 ` Jarkko Sakkinen
2017-10-16 18:35 ` Jarkko Sakkinen
2017-10-16 18:35 ` Jarkko Sakkinen
2017-10-16 20:44 ` SF Markus Elfring
2017-10-16 20:44 ` SF Markus Elfring
2017-10-18 15:04 ` Jarkko Sakkinen
2017-10-18 15:04 ` Jarkko Sakkinen
2017-10-18 15:43 ` SF Markus Elfring
2017-10-18 15:43 ` SF Markus Elfring
2017-10-18 15:43 ` SF Markus Elfring
2017-10-16 22:46 ` [PATCH 0/4] " Joe Perches
2017-10-16 22:46 ` Joe Perches
2017-10-17 7:20 ` SF Markus Elfring
2017-10-17 7:20 ` SF Markus Elfring
2017-10-17 8:51 ` Dan Carpenter
2017-10-17 8:51 ` Dan Carpenter
2017-10-17 8:56 ` Julia Lawall
2017-10-17 8:56 ` Julia Lawall
2017-10-17 9:44 ` Dan Carpenter
2017-10-17 9:44 ` Dan Carpenter
2017-10-17 10:11 ` Julia Lawall
2017-10-17 10:11 ` Julia Lawall
2017-10-17 11:52 ` Mimi Zohar
2017-10-17 11:52 ` Mimi Zohar
2017-10-17 11:52 ` Mimi Zohar
2017-10-18 3:18 ` Michael Ellerman
2017-10-18 3:18 ` Michael Ellerman
2017-10-19 13:16 ` Mimi Zohar
2017-10-19 13:16 ` Mimi Zohar
2017-10-19 16:08 ` Circumstances for using the tag “Fixes” (or not) SF Markus Elfring
2017-10-19 16:08 ` SF Markus Elfring
2017-10-17 12:26 ` [PATCH 0/4] char-TPM: Adjustments for ten function implementations Michael Ellerman
2017-10-17 12:26 ` Michael Ellerman
2017-10-18 15:07 ` Jarkko Sakkinen
2017-10-18 15:07 ` Jarkko Sakkinen
2017-10-17 9:25 ` SF Markus Elfring
2017-10-17 9:25 ` SF Markus Elfring
2017-10-17 15:57 ` James Bottomley
2017-10-17 15:57 ` James Bottomley
2017-10-17 16:32 ` SF Markus Elfring
2017-10-17 16:32 ` SF Markus Elfring
2017-10-17 16:32 ` SF Markus Elfring
2017-10-17 22:43 ` Joe Perches [this message]
2017-10-17 22:43 ` Joe Perches
2017-10-17 22:43 ` Joe Perches
2017-10-18 9:00 ` SF Markus Elfring
2017-10-18 9:00 ` SF Markus Elfring
2017-10-18 9:18 ` Joe Perches
2017-10-18 9:18 ` Joe Perches
2017-10-18 9:50 ` Alexander.Steffen
2017-10-18 9:50 ` Alexander.Steffen
2017-10-18 9:50 ` Alexander.Steffen
2017-10-18 10:00 ` Julia Lawall
2017-10-18 10:00 ` Julia Lawall
2017-10-18 10:28 ` Joe Perches
2017-10-18 10:28 ` Joe Perches
2017-10-18 11:00 ` Adjusting further size determinations? SF Markus Elfring
2017-10-18 11:00 ` SF Markus Elfring
2017-10-18 11:49 ` Joe Perches
2017-10-18 11:49 ` Joe Perches
2017-10-18 12:07 ` SF Markus Elfring
2017-10-18 12:07 ` SF Markus Elfring
2017-10-18 12:58 ` David Laight
2017-10-18 12:58 ` David Laight
2017-10-18 12:58 ` David Laight
2017-10-18 13:32 ` Julia Lawall
2017-10-18 13:32 ` Julia Lawall
2017-10-18 13:50 ` SF Markus Elfring
2017-10-18 13:50 ` SF Markus Elfring
2017-10-18 13:50 ` SF Markus Elfring
2017-10-18 10:44 ` char-TPM: Adjustments for ten function implementations Alexander.Steffen
2017-10-18 10:44 ` Alexander.Steffen
2017-10-18 10:44 ` Alexander.Steffen
2017-10-18 10:49 ` Joe Perches
2017-10-18 10:49 ` Joe Perches
2017-10-18 11:07 ` Alexander.Steffen
2017-10-18 11:07 ` Alexander.Steffen
2017-10-18 11:07 ` Alexander.Steffen
2017-10-18 9:55 ` SF Markus Elfring
2017-10-18 9:55 ` SF Markus Elfring
2017-10-18 18:27 ` Michal Suchánek
2017-10-18 18:27 ` Michal Suchánek
2017-10-18 15:10 ` [PATCH 0/4] " Jarkko Sakkinen
2017-10-18 15:10 ` Jarkko Sakkinen
2017-10-18 15:10 ` Jarkko Sakkinen
2017-10-18 16:09 ` James Bottomley
2017-10-18 16:09 ` James Bottomley
2017-10-18 16:09 ` James Bottomley
2017-10-18 17:13 ` Jarkko Sakkinen
2017-10-18 17:13 ` Jarkko Sakkinen
2017-10-18 17:13 ` Jarkko Sakkinen
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