Hi, This was pointed out in a few places, but not forwarded to lkml yet that I saw:
https://devtalk.nvidia.com/default/topic/1028222/linux/lts-kernel-patch-for-intel-cpu-vulnerability-breaks-nvidia-driver/post/5230546 Before and after PTI, cpu_tlbstate is a GPL export: $ git show v4.14:arch/x86/mm/init.c | grep cpu_tlbstate DEFINE_PER_CPU_SHARED_ALIGNED(struct tlb_state, cpu_tlbstate) = { EXPORT_SYMBOL_GPL(cpu_tlbstate); But after PTI, inlining or something is dragging cpu_tlbstate into the open, causing build failures. Technically, to avoid regressions for that module, we'll need to drop the GPL marking on that symbol, or find some other solution... -Kees -- Kees Cook Pixel Security
