Without this the symbol will not actually end up in .config files. Fixes: a30e32bd79e9 ("asm-generic/tlb: Provide generic tlb_flush() based on flush_tlb_mm()") Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx> --- arch/Kconfig | 3 +++ 1 file changed, 3 insertions(+) --- a/arch/Kconfig +++ b/arch/Kconfig @@ -402,6 +402,9 @@ config HAVE_RCU_TABLE_NO_INVALIDATE config HAVE_MMU_GATHER_PAGE_SIZE bool +config MMU_GATHER_NO_RANGE + bool + config HAVE_MMU_GATHER_NO_GATHER bool