From: Andi Kleen <[email protected]> On 32bit builds this BUILD_BUG_ON often fires with LTO for unknown reasons. As far as I can tell it's a false positive. So disable it for LTO.
Signed-off-by: Andi Kleen <[email protected]> --- arch/x86/mm/init_32.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c index 8a64a6f2848d..8187d8ee98ee 100644 --- a/arch/x86/mm/init_32.c +++ b/arch/x86/mm/init_32.c @@ -808,7 +808,9 @@ void __init mem_init(void) BUILD_BUG_ON(VMALLOC_END > PKMAP_BASE); #endif #define high_memory (-128UL << 20) +#ifndef CONFIG_LTO BUILD_BUG_ON(VMALLOC_START >= VMALLOC_END); +#endif #undef high_memory #undef __FIXADDR_TOP -- 2.13.6
