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Re: [Question] Backporting ACPI fix to Buster kernel?

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From	Laurențiu Păncescu <lpancescu@gmail.com>
Newsgroups	linux.debian.kernel
Subject	Re: [Question] Backporting ACPI fix to Buster kernel?
Date	Thu, 03 Jun 2021 20:10:02 +0200
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Hi,

On 6/2/21 5:46 PM, Salvatore Bonaccorso wrote:
> In general the best way to reach that is to make sure it reaches the
> upstream 4.19.y stable branches by asking upstrema to backport the fix
> to the series. If it is applicably this is not a problem in most
> cases. As in the Debian stable release we follow upstream 4.19.y then
> the fix will be included automatically at some point.

Thanks, Salvatore. I reached out on upstream's stable mailing list, and 
Greg KH replied that the patch doesn't apply cleanly and I can backport 
it and sent the patch. So I git-cloned the stable tree and checked out 
branch linux-4.19.y, but I'm unable to compile it (without making any 
changes).

I first tried the approach described in the Debian Kernel Handbook:
$ cp /boot/config-4.19.0-16-amd64 .config
$ scripts/config --disable MODULE_SIG
$ scripts/config --disable DEBUG_INFO
$ make oldconfig
$ make clean
$ make-deb-pkg
...
make[4]: *** No rule to make target 
'debian/certs/debian-uefi-certs.pem', needed by 
'certs/x509_certificate_list'.  Stop.

I then found the instructions for compiling the kernel from the Debian 
Handbook for Buster[1], but it stops before even compiling anything:

$ cp /boot/config-4.19.0-16-amd64 .config
$ make oldconfig
$ vim .config # add CONFIG_TRUSTED_KEYS=""
$ make clean
$ make-deb-pkg LOCALVERSION=-plaur KDEB_PKGVERSION=$(make kernelversion)-1
...
dpkg-source: info: use the '3.0 (quilt)' format to have separate and 
documented changes to upstream files, see dpkg-source(1)
dpkg-source: error: unrepresentable changes to source
dpkg-buildpackage: error: dpkg-source -i.git -b . subprocess returned 
exit status 1
make[1]: *** [scripts/package/Makefile:75: deb-pkg] Error 1
make: *** [Makefile:1390: deb-pkg] Error 2

What is the proper way to compile the upstream 4.19.y kernel, can 
anybody help?

Thanks,
Laurențiu

[1] https://debian-handbook.info/browse/stable/sect.kernel-compilation.html

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Thread

[Question] Backporting ACPI fix to Buster kernel? Laurențiu Păncescu <lpancescu@gmail.com> - 2021-05-30 08:30 +0200
  Re: [Question] Backporting ACPI fix to Buster kernel? Georgi Naplatanov <gosho@oles.biz> - 2021-05-30 09:50 +0200
    Re: [Question] Backporting ACPI fix to Buster kernel? Laurențiu Păncescu <lpancescu@gmail.com> - 2021-05-30 20:40 +0200
  Re: [Question] Backporting ACPI fix to Buster kernel? Salvatore Bonaccorso <carnil@debian.org> - 2021-06-02 17:50 +0200
    Re: [Question] Backporting ACPI fix to Buster kernel? Laurențiu Păncescu <lpancescu@gmail.com> - 2021-06-03 20:10 +0200

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