From: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Mimi Zohar <zohar@linux.vnet.ibm.com>,
Alexander.Steffen@infineon.com, linux-kernel@vger.kernel.org,
kernel-janitors@vger.kernel.org, elfring@users.sourceforge.net,
linux-integrity@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
benh@kernel.crashing.org, clabbe.montjoie@gmail.com,
jgunthorpe@obsidianresearch.com, jsnitsel@redhat.com,
kgold@linux.vnet.ibm.com, mpe@ellerman.id.au,
nayna@linux.vnet.ibm.com, paulus@samba.org, PeterHuewe@gmx.de,
Stefan Berger <stefanb@linux.vnet.ibm.com>
Subject: Re: [PATCH 3/4] char/tpm: Improve a size determination in nine functions
Date: Wed, 18 Oct 2017 14:52:42 +0000 [thread overview]
Message-ID: <20171018145241.fay7l43ftqte4ig6@linux.intel.com> (raw)
In-Reply-To: <1508245325.16112.478.camel@linux.intel.com>
On Tue, Oct 17, 2017 at 04:02:05PM +0300, Andy Shevchenko wrote:
> On Tue, 2017-10-17 at 08:52 -0400, Mimi Zohar wrote:
> > On Tue, 2017-10-17 at 11:50 +0000, Alexander.Steffen@infineon.com
> > wrote:
> > > > > Replace the specification of data structures by pointer
> > > > > dereferences
> > > > > as the parameter for the operator "sizeof" to make the
> > > > > corresponding
> > > > > size
> > > > > determination a bit safer according to the Linux coding style
> > > > > convention.
> > > >
> > > >
> > > > This patch does one style in favor of the other.
> > >
> > > I actually prefer that style, so I'd welcome this change :)
> >
> > Style changes should be reviewed and documented, like any other code
> > change, and added to Documentation/process/coding-style.rst or an
> > equivalent file.
>
> +1.
>
> > > > At the end it's Jarkko's call, though I would NAK this as I think
> > > > some
> > > > one already told this to you for some other similar patch(es).
> > > >
> > > >
> > > > I even would suggest to stop doing this noisy stuff, which keeps
> > > > people
> > > > busy for nothing.
> > >
> > > Cleaning up old code is also worth something, even if does not
> > > change one bit in the assembly output in the end...
> >
> > Wow, you're opening the door really wide for all sorts of trivial
> > changes! Hope you have the time and inclination to review and comment
> > on all of them. I certainly don't.
>
> Moreover and not so obvious is an open door for making back port of
> *real* fixes much harder!
Yes. This is really the key observation:
A commit must have value above the cost of fixing a merge conflict.
/Jarkko
WARNING: multiple messages have this Message-ID (diff)
From: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Mimi Zohar <zohar@linux.vnet.ibm.com>,
Alexander.Steffen@infineon.com, linux-kernel@vger.kernel.org,
kernel-janitors@vger.kernel.org, elfring@users.sourceforge.net,
linux-integrity@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
benh@kernel.crashing.org, clabbe.montjoie@gmail.com,
jgunthorpe@obsidianresearch.com, jsnitsel@redhat.com,
kgold@linux.vnet.ibm.com, mpe@ellerman.id.au,
nayna@linux.vnet.ibm.com, paulus@samba.org, PeterHuewe@gmx.de,
Stefan Berger <stefanb@linux.vnet.ibm.com>
Subject: Re: [PATCH 3/4] char/tpm: Improve a size determination in nine functions
Date: Wed, 18 Oct 2017 17:52:42 +0300 [thread overview]
Message-ID: <20171018145241.fay7l43ftqte4ig6@linux.intel.com> (raw)
In-Reply-To: <1508245325.16112.478.camel@linux.intel.com>
On Tue, Oct 17, 2017 at 04:02:05PM +0300, Andy Shevchenko wrote:
> On Tue, 2017-10-17 at 08:52 -0400, Mimi Zohar wrote:
> > On Tue, 2017-10-17 at 11:50 +0000, Alexander.Steffen@infineon.com
> > wrote:
> > > > > Replace the specification of data structures by pointer
> > > > > dereferences
> > > > > as the parameter for the operator "sizeof" to make the
> > > > > corresponding
> > > > > size
> > > > > determination a bit safer according to the Linux coding style
> > > > > convention.
> > > >
> > > >
> > > > This patch does one style in favor of the other.
> > >
> > > I actually prefer that style, so I'd welcome this change :)
> >
> > Style changes should be reviewed and documented, like any other code
> > change, and added to Documentation/process/coding-style.rst or an
> > equivalent file.
>
> +1.
>
> > > > At the end it's Jarkko's call, though I would NAK this as I think
> > > > some
> > > > one already told this to you for some other similar patch(es).
> > > >
> > > >
> > > > I even would suggest to stop doing this noisy stuff, which keeps
> > > > people
> > > > busy for nothing.
> > >
> > > Cleaning up old code is also worth something, even if does not
> > > change one bit in the assembly output in the end...
> >
> > Wow, you're opening the door really wide for all sorts of trivial
> > changes! Hope you have the time and inclination to review and comment
> > on all of them. I certainly don't.
>
> Moreover and not so obvious is an open door for making back port of
> *real* fixes much harder!
Yes. This is really the key observation:
A commit must have value above the cost of fixing a merge conflict.
/Jarkko
next prev parent reply other threads:[~2017-10-18 14:52 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 [this message]
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
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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