The kvm_* symbols are only available if KVM is selected. Fixes the following linking problem on a randconfig: arch/mips/built-in.o: In function `local_flush_tlb_mm': (.text+0x18a94): undefined reference to `kvm_local_flush_tlb_all' arch/mips/built-in.o: In function `local_flush_tlb_range': (.text+0x18d0c): undefined reference to `kvm_local_flush_tlb_all' kernel/built-in.o: In function `__schedule': core.c:(.sched.text+0x2a00): undefined reference to `kvm_local_flush_tlb_all' mm/built-in.o: In function `use_mm': (.text+0x30214): undefined reference to `kvm_local_flush_tlb_all' fs/built-in.o: In function `flush_old_exec': (.text+0xf0a0): undefined reference to `kvm_local_flush_tlb_all' make: *** [vmlinux] Error 1 Signed-off-by: Markos Chandras <markos.chandras@xxxxxxxxxx> Signed-off-by: Steven J. Hill <Steven.Hill@xxxxxxxxxx> --- arch/mips/include/asm/mmu_context.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/mips/include/asm/mmu_context.h b/arch/mips/include/asm/mmu_context.h index 8201160..ee5a93b 100644 --- a/arch/mips/include/asm/mmu_context.h +++ b/arch/mips/include/asm/mmu_context.h @@ -111,13 +111,15 @@ static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) static inline void get_new_mmu_context(struct mm_struct *mm, unsigned long cpu) { +#ifdef CONFIG_KVM extern void kvm_local_flush_tlb_all(void); +#endif unsigned long asid = asid_cache(cpu); if (! ((asid += ASID_INC) & ASID_MASK) ) { if (cpu_has_vtag_icache) flush_icache_all(); -#ifdef CONFIG_VIRTUALIZATION +#ifdef CONFIG_KVM kvm_local_flush_tlb_all(); /* start new asid cycle */ #else local_flush_tlb_all(); /* start new asid cycle */ -- 1.8.2.1