linux-kernel - Re: [PATCH 6.1&6.6 V3 3/3] sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3

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Message-ID: <CAAhV-H4-GnvqJrnJu_Z6EBKBH5WBTiZ9xRh1vGhBmuoYNw=r9w@mail.gmail.com>
Date: Thu, 20 Mar 2025 11:01:32 +0800
From: Huacai Chen <chenhuacai@...nel.org>
To: Jan Stancek <jstancek@...hat.com>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Huacai Chen <chenhuacai@...ngson.cn>, 
	Sasha Levin <sashal@...nel.org>, Xuerui Wang <kernel@...0n.name>, stable@...r.kernel.org, 
	David Howells <dhowells@...hat.com>, David Woodhouse <dwmw2@...radead.org>, 
	Jarkko Sakkinen <jarkko@...nel.org>, keyrings@...r.kernel.org, linux-kernel@...r.kernel.org, 
	loongarch@...ts.linux.dev, R Nageswara Sastry <rnsastry@...ux.ibm.com>, 
	Neal Gompa <neal@...pa.dev>
Subject: Re: [PATCH 6.1&6.6 V3 3/3] sign-file,extract-cert: use pkcs11
 provider for OPENSSL MAJOR >= 3

Hi, all,

On Thu, Mar 20, 2025 at 12:53 AM Jan Stancek <jstancek@...hat.com> wrote:
>
> On Wed, Mar 19, 2025 at 5:26 PM Greg Kroah-Hartman
> <gregkh@...uxfoundation.org> wrote:
> >
> > On Wed, Mar 19, 2025 at 03:44:19PM +0100, Jan Stancek wrote:
> > > On Wed, Mar 19, 2025 at 07:13:13AM -0700, Greg Kroah-Hartman wrote:
> > > > On Wed, Mar 19, 2025 at 02:40:31PM +0800, Huacai Chen wrote:
> > > > > From: Jan Stancek <jstancek@...hat.com>
> > > > >
> > > > > commit 558bdc45dfb2669e1741384a0c80be9c82fa052c upstream.
> > > > >
> > > > > ENGINE API has been deprecated since OpenSSL version 3.0 [1].
> > > > > Distros have started dropping support from headers and in future
> > > > > it will likely disappear also from library.
> > > > >
> > > > > It has been superseded by the PROVIDER API, so use it instead
> > > > > for OPENSSL MAJOR >= 3.
> > > > >
> > > > > [1] https://github.com/openssl/openssl/blob/master/README-ENGINES.md
> > > > >
> > > > > [jarkko: fixed up alignment issues reported by checkpatch.pl --strict]
> > > > >
> > > > > Signed-off-by: Jan Stancek <jstancek@...hat.com>
> > > > > Reviewed-by: Jarkko Sakkinen <jarkko@...nel.org>
> > > > > Tested-by: R Nageswara Sastry <rnsastry@...ux.ibm.com>
> > > > > Reviewed-by: Neal Gompa <neal@...pa.dev>
> > > > > Signed-off-by: Jarkko Sakkinen <jarkko@...nel.org>
> > > > > Signed-off-by: Huacai Chen <chenhuacai@...ngson.cn>
> > > > > ---
> > > > >  certs/extract-cert.c | 103 ++++++++++++++++++++++++++++++-------------
> > > > >  scripts/sign-file.c  |  93 ++++++++++++++++++++++++++------------
> > > > >  2 files changed, 138 insertions(+), 58 deletions(-)
> > > >
> > > > This seems to differ from what is upstream by a lot, please document
> > > > what you changed from it and why when you resend this series again.
> > >
> > > Hunks are arranged differently, but code appears to be identical.
> > > When I apply the series to v6.6.83 and compare with upstream I get:
> >
> > If so, why is the diffstat different?  Also why are the hunks arranged
> > differently,
>
> He appears to be using "--diff-algorithm=minimal", while you probably
> patience or histogram.
>
> $ git format-patch -1 --stdout --diff-algorithm=minimal 558bdc45dfb2 |
> grep -A3 -m1 -- "---"
> ---
>  certs/extract-cert.c | 103 ++++++++++++++++++++++++++++++-------------
>  scripts/sign-file.c  |  93 ++++++++++++++++++++++++++------------
>  2 files changed, 138 insertions(+), 58 deletions(-)
>
> Should be easy to regenerate with different diff-alg for v4.
I use the default configuration to generate patches, and since the
code is identical, should I really send a V4?

Huacai

>
> Regards,
> Jan
>
> > that's a hint to me that something went wrong and I can't
> > trust the patch at all.
> >
> > thanks,
> >
> > greg k-h
> >
>