IBT tracking not possible for nvidia module

[Dimitri John Ledkov]

After compiling kernel with IBT, compling nvidia dkms, fails to load with this:

dmesg.log:

Jul 13 17:23:05 ottawa kernel:
Jul 13 17:23:05 ottawa kernel: traps: Missing ENDBR: _nv011433rm+0x0/0x10 [nvidia]
Jul 13 17:23:05 ottawa kernel: ------------[ cut here ]------------
Jul 13 17:23:05 ottawa kernel: kernel BUG at arch/x86/kernel/traps.c:253!

also note lots of warnings from objtool in make.log:

/var/lib/dkms/nvidia/515.48.07/build/nvidia-modeset.o: warning: objtool: _nv000093kms+0x1d: call without frame pointer save/setup
/var/lib/dkms/nvidia/515.48.07/build/nvidia-modeset.o: warning: objtool: _nv000098kms+0x2f: call without frame pointer save/setup
/var/lib/dkms/nvidia/515.48.07/build/nvidia-modeset.o: warning: objtool: _nv000094kms+0x50: call without frame pointer save/setup
/var/lib/dkms/nvidia/515.48.07/build/nvidia-modeset.o: warning: objtool: _nv000677kms+0x9: call without frame pointer save/setup
/var/lib/dkms/nvidia/515.48.07/build/nvidia-modeset.o: warning: objtool: _nv000680kms+0x38: call without frame pointer save/setup
/var/lib/dkms/nvidia/515.48.07/build/nvidia-modeset.o: warning: objtool: _nv000024kms+0x16: call without frame pointer save/setup
/var/lib/dkms/nvidia/515.48.07/build/nvidia-modeset.o: warning: objtool: _nv000643kms+0xcc: BP used as a scratch register
...

If this cannot be fixed, we should consider to make nvidia drivers by default ship grub kernel commandline chanes to be "ibt=warn" or "ibt=off" by default.