For starters, yes, I *do* understand the security issues involved, and no, I *don't* want to hear about NVidia evilness, because this looks like a modpost problem not an NVidia problem.
I built next-20121011 with CONFIG_MODULE_SIG=y, and MODULE_SIG_FORCE=n, so that I could test the feature, and just accept that the nvidia module was going to hand me 2 taints instead of one. But then, building the NVidia module a wondrous thing happened, and it threw a most inexplicable error: cp /usr/src/valdis/NVIDIA-Linux-x86_64-304.51/kernel/nvidia.ko.unsigned /usr/src/valdis/NVIDIA-Linux-x86_64-304.51/kernel/nvidia.ko.stripped && strip -x -g /usr/src/valdis/NVIDIA-Linux-x86_64-304.51/kernel/nvidia.ko.stripped && /usr/bin/eu-strip /usr/src/valdis/NVIDIA-Linux-x86_64-304.51/kernel/nvidia.ko.stripped /bin/sh: -c: line 0: syntax error near unexpected token `;' /bin/sh: -c: line 0: `set -e; ; echo 'cmd_/usr/src/valdis/NVIDIA-Linux-x86_64-304.51/kernel/nvidia.ko := ' > /usr/src/valdis/NVIDIA-Linux-x86_64-304.51/kernel/.nvidia.ko.cmd' Looks like somebody left a $(FOO) unset between the 2 ';' characters. I wasn't able to follow the way scripts/Makefile.modpost worked well enough to figure out where that line gets built, there's way too many 'set -e' in the scripts/ tree. Building with MODULE_SIG=n made it build just fine. This *MAY* be related to this RedHat bug: https://bugzilla.redhat.com/show_bug.cgi?id=655231
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