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Message-ID: <0155a718388cf598d2171795c129a93f04a1ddfd.camel@perches.com>
Date:   Wed, 23 Aug 2023 21:43:17 -0700
From:   Joe Perches <joe@...ches.com>
To:     Paul Menzel <pmenzel@...gen.mpg.de>,
        Jarkko Sakkinen <jarkko@...nel.org>,
        Andy Whitcroft <apw@...onical.com>
Cc:     linux-integrity@...r.kernel.org,
        Jerry Snitselaar <jsnitsel@...hat.com>, stable@...r.kernel.org,
        Todd Brandt <todd.e.brandt@...el.com>,
        Peter Huewe <peterhuewe@....de>,
        Jason Gunthorpe <jgg@...pe.ca>,
        Mario Limonciello <mario.limonciello@....com>,
        linux-kernel@...r.kernel.org, Patrick Steinhardt <ps@....im>,
        Ronan Pigott <ronan@....ie>,
        Raymond Jay Golo <rjgolo@...il.com>
Subject: Re: checkpatch complains about Reported-by block (was: [PATCH v3]
 tpm: Enable hwrng only for Pluton on AMD CPUs)

On Wed, 2023-08-23 at 21:24 +0200, Paul Menzel wrote:
> [Cc: +Andy, +Joe]
> 
> 
> Dear Jarkko, dear Andy, dear Joe,
> 
> 
> Am 23.08.23 um 19:40 schrieb Jarkko Sakkinen:
> > On Wed Aug 23, 2023 at 11:23 AM EEST, Paul Menzel wrote:
> 
> > > Am 23.08.23 um 01:15 schrieb Jarkko Sakkinen:
> > > > The vendor check introduced by commit 554b841d4703 ("tpm: Disable RNG for
> > > > all AMD fTPMs") doesn't work properly on a number of Intel fTPMs.  On the
> > > > reported systems the TPM doesn't reply at bootup and returns back the
> > > > command code. This makes the TPM fail probe.
> > > > 
> > > > Since only Microsoft Pluton is the only known combination of AMD CPU and
> > > > fTPM from other vendor, disable hwrng otherwise. In order to make sysadmin
> > > > aware of this, print also info message to the klog.
> > > > 
> > > > Cc: stable@...r.kernel.org
> > > > Fixes: 554b841d4703 ("tpm: Disable RNG for all AMD fTPMs")
> > > > Reported-by: Todd Brandt <todd.e.brandt@...el.com>
> > > > Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217804
> > > > Signed-off-by: Jarkko Sakkinen <jarkko@...nel.org>
> > > 
> > > Mario’s patch also had the three reporters below listed:
> > > 
> > > Reported-by: Patrick Steinhardt <ps@....im>
> > > Reported-by: Ronan Pigott <ronan@....ie>
> > > Reported-by: Raymond Jay Golo <rjgolo@...il.com>
> > 
> > The problem here is that checkpatch throws three warnings:
> > 
> > WARNING: Reported-by: should be immediately followed by Closes: with a URL to the report
> > #19:
> > Reported-by: Patrick Steinhardt <ps@....im>
> > Reported-by: Ronan Pigott <ronan@....ie>
> > 
> > WARNING: Reported-by: should be immediately followed by Closes: with a URL to the report
> > #20:
> > Reported-by: Ronan Pigott <ronan@....ie>
> > Reported-by: Raymond Jay Golo <rjgolo@...il.com>
> > 
> > WARNING: Reported-by: should be immediately followed by Closes: with a URL to the report
> > #21:
> > Reported-by: Raymond Jay Golo <rjgolo@...il.com>
> > Signed-off-by: Jarkko Sakkinen <jarkko@...nel.org>
> > 
> > Since bugzilla is not part of the documented process afaik, I used this
> > field as the guideline:
> > 
> > Reported:	2023-08-17 20:59 UTC by Todd Brandt
> > 
> > How otherwise I should interpret kernel bugzilla?
> 
> How is the proper process to add more than one reporter (so they are 
> noted and also added to CC), so that checkpatch.pl does not complain?
> 
> 
> Kind regards,
> 
> Paul
> 
> 
> > In any case new version is still needed as the commit message must
> > contain a mention of "Lenovo Legion Y540" as the stimulus for doing
> > this code change in the first place.
> > 
> > BR, Jarkko

Well, if it's really desired to allow multiple consecutive reported-by:
lines, maybe:
---
 scripts/checkpatch.pl | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 528f619520eb9..5b5c11ad04087 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3179,6 +3179,8 @@ sub process {
 				if (!defined $lines[$linenr]) {
 					WARN("BAD_REPORTED_BY_LINK",
 					     "Reported-by: should be immediately followed by Closes: with a URL to the report\n" . $herecurr . "\n");
+				} elsif ($rawlines[$linenr] =~ /^\s*reported(?:|-and-tested)-by:/i) {
+					;
 				} elsif ($rawlines[$linenr] !~ /^closes:\s*/i) {
 					WARN("BAD_REPORTED_BY_LINK",
 					     "Reported-by: should be immediately followed by Closes: with a URL to the report\n" . $herecurr . $rawlines[$linenr] . "\n");

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