On Wed, Feb 21, 2024 at 11:20:13AM +0100, Ard Biesheuvel wrote: > Just the below should be sufficient > > --- a/arch/x86/include/asm/pgtable_64_types.h > +++ b/arch/x86/include/asm/pgtable_64_types.h > @@ -22,7 +22,7 @@ typedef struct { pteval_t pte; } pte_t; > typedef struct { pmdval_t pmd; } pmd_t; > > -#ifdef CONFIG_X86_5LEVEL > extern unsigned int __pgtable_l5_enabled; > > +#ifdef CONFIG_X86_5LEVEL > #ifdef USE_EARLY_PGTABLE_L5 Perhaps but the CONFIG_X86_5LEVEL ifdeffery is just ugly and getting unnecessary. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette