Nvidia kernel module fails to build on linux 6.7.3

[HO5DTOAT]

Is this a new report?

Yes

System Info

Void 6.7.2_1 x86_64 GenuineIntel uptodate rrrrmmnFFFFFFFF

Package(s) Affected

nvidia-535.154.05_1

Does a report exist for this bug with the project's home (upstream) and/or another distro?

It appears Nvidia is aware of the issue and will be releasing a fix.
https://forums.developer.nvidia.com/t/linux-6-7-3-545-29-06-550-40-07-error-modpost-gpl-incompatible-module-nvidia-ko-uses-gpl-only-symbol-rcu-read-lock/280908/24

Expected behaviour

In post-install steps after kernel 6.7.3 is installed, the dkms modules are built. The nvidia kernel module should build without errors.

Actual behaviour

The dkms module fails to build and the message "Building DKMS module: nvidia-535.154.05... FAILED!" is output.

Checking the build log mentions about GPL symbols being used in the module.

Steps to reproduce

1. Install dkms, the current nvidia drivers (535 series), and nvidia-dkms.
2. Upgrade kernel to 6.7.3 (need to be on the linux-mainline kernel series).
3. The post-install for dkms build for nvidia fails with an error message.
   Building DKMS module: nvidia-535.154.05... FAILED!
   The build logs (/var/lib/dkms/nvidia/535.154.05/build/make.log) contain error messages about incompatible symbols.
   ERROR: modpost: GPL-incompatible module nvidia.ko uses GPL-only symbol '__rcu_read_unlock'
ERROR: modpost: GPL-incompatible module nvidia.ko uses GPL-only symbol '__rcu_read_lock'

[akarelas]

This also happens with linux kernel 6.6.15 (linux6.6-6.6.15_1):

[user@voidvm build]$ tail -n 20 /var/lib/dkms/nvidia/535.154.05/build/make.log
/var/lib/dkms/nvidia/535.154.05/build/nvidia.o: warning: objtool: _nv038952rm+0x9d: 'naked' return found in RETHUNK build
/var/lib/dkms/nvidia/535.154.05/build/nvidia.o: warning: objtool: _nv038954rm+0x77: 'naked' return found in RETHUNK build
/var/lib/dkms/nvidia/535.154.05/build/nvidia.o: warning: objtool: _nv038898rm+0x7f: 'naked' return found in RETHUNK build
/var/lib/dkms/nvidia/535.154.05/build/nvidia.o: warning: objtool: _nv030487rm+0x3e: 'naked' return found in RETHUNK build
/var/lib/dkms/nvidia/535.154.05/build/nvidia.o: warning: objtool: _nv030486rm+0x27: 'naked' return found in RETHUNK build
/var/lib/dkms/nvidia/535.154.05/build/nvidia.o: warning: objtool: _nv030490rm+0x37: 'naked' return found in RETHUNK build
/var/lib/dkms/nvidia/535.154.05/build/nvidia.o: warning: objtool: _nv030489rm+0x24: 'naked' return found in RETHUNK build
/var/lib/dkms/nvidia/535.154.05/build/nvidia.o: warning: objtool: _nv030488rm+0xca: 'naked' return found in RETHUNK build
/var/lib/dkms/nvidia/535.154.05/build/nvidia.o: warning: objtool: _nv030491rm+0x193: 'naked' return found in RETHUNK build
/var/lib/dkms/nvidia/535.154.05/build/nvidia.o: warning: objtool: _nv030493rm+0x17f: 'naked' return found in RETHUNK build
/var/lib/dkms/nvidia/535.154.05/build/nvidia.o: warning: objtool: _nv011850rm+0x5d: 'naked' return found in RETHUNK build
/var/lib/dkms/nvidia/535.154.05/build/nvidia.o: warning: objtool: _nv039265rm+0x12f: 'naked' return found in RETHUNK build
  MODPOST /var/lib/dkms/nvidia/535.154.05/build/Module.symvers
ERROR: modpost: GPL-incompatible module nvidia.ko uses GPL-only symbol '__rcu_read_unlock'
ERROR: modpost: GPL-incompatible module nvidia.ko uses GPL-only symbol '__rcu_read_lock'
make[3]: *** [scripts/Makefile.modpost:145: /var/lib/dkms/nvidia/535.154.05/build/Module.symvers] Error 1
make[2]: *** [/usr/src/kernel-headers-6.6.15_1/Makefile:1865: modpost] Error 2
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Leaving directory '/usr/src/kernel-headers-6.6.15_1'
make: *** [Makefile:82: modules] Error 2

[classabbyamp]

arch has a patch maybe: https://gitlab.archlinux.org/archlinux/packaging/packages/nvidia-utils/-/blob/main/nvidia-drivers-470.223.02-gpl-pfn_valid.patch

[abenson]

Should be fixed now!

[HO5DTOAT]

Kernel module is built and installed successfully with 535.154.05_2. So, closing the issue.