New kernel can't compile dkms on debian

[Parlane]

Gidday,

First off, thank you for creating this docker builder.

I have Debian using 6.12.5-amd64 and it can't compile googles version of gasket_core.c:

~/gasket-builder# cat  /var/lib/dkms/gasket/1.0/build/make.log
DKMS make.log for gasket-1.0 for kernel 6.12.5-amd64 (x86_64)
Tue 17 Dec 2024 13:09:15 NZDT
make: Entering directory '/usr/src/linux-headers-6.12.5-amd64'
  CC [M]  /var/lib/dkms/gasket/1.0/build/gasket_core.o
  CC [M]  /var/lib/dkms/gasket/1.0/build/gasket_ioctl.o
  CC [M]  /var/lib/dkms/gasket/1.0/build/gasket_interrupt.o
  CC [M]  /var/lib/dkms/gasket/1.0/build/gasket_page_table.o
  CC [M]  /var/lib/dkms/gasket/1.0/build/gasket_sysfs.o
  CC [M]  /var/lib/dkms/gasket/1.0/build/apex_driver.o
/var/lib/dkms/gasket/1.0/build/gasket_core.c:1376:19: error: ‘no_llseek’ undeclared here (not in a function); did you mean ‘noop_llseek’?
 1376 |         .llseek = no_llseek,
      |                   ^~~~~~~~~
      |                   noop_llseek
make[2]: *** [/usr/src/linux-headers-6.12.5-common/scripts/Makefile.build:234: /var/lib/dkms/gasket/1.0/build/gasket_core.o] Error 1
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [/usr/src/linux-headers-6.12.5-common/Makefile:1962: /var/lib/dkms/gasket/1.0/build] Error 2
make: *** [/usr/src/linux-headers-6.12.5-common/Makefile:236: __sub-make] Error 2
make: Leaving directory '/usr/src/linux-headers-6.12.5-amd64'

Another user submitted a fix to google's repo: google/gasket-driver#35 this does fiix my issue if I modify your Dockerfile to the following to use their pull request:

FROM ubuntu:24.04 AS build-stage

ARG DEBIAN_FRONTEND=noninteractive
RUN apt-get update
RUN apt-get install -q -y --no-install-recommends git devscripts dkms dh-dkms build-essential debhelper

RUN git clone -b llseek https://github.com/heitbaum/gasket-driver
RUN cd gasket-driver && debuild -us -uc -tc -b

FROM scratch AS export-stage
COPY --from=build-stage *.deb .

[jnicolson]

Thanks! I've pulled in that commit as a patch (5e78723) so that it doesn't risk pulling in any future changes heitbaum might make. Can you try to build it again?

[Parlane]

Thanks @jnicolson, that worked.

[jnicolson]

Excellent! Thanks for confirming.