The generic CC_CAN_LINK detection relies on -m32/-m64 compiler flags. s390 uses -m31 instead of -m32.
Use architecture-specific logic using -m31/-m64 instead. Signed-off-by: Thomas Weißschuh <[email protected]> --- arch/s390/Kconfig | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index c4145672ca342a656eece10704706d4b12ff9fd6..77ea17537fa2f938aee1fce0053a48853b1ce638 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -82,6 +82,7 @@ config S390 select ARCH_ENABLE_MEMORY_HOTREMOVE select ARCH_ENABLE_SPLIT_PMD_PTLOCK if PGTABLE_LEVELS > 2 select ARCH_ENABLE_THP_MIGRATION if TRANSPARENT_HUGEPAGE + select ARCH_HAS_CC_CAN_LINK select ARCH_HAS_CPU_FINALIZE_INIT select ARCH_HAS_CURRENT_STACK_POINTER select ARCH_HAS_DEBUG_VIRTUAL @@ -290,6 +291,16 @@ config PGTABLE_LEVELS source "kernel/livepatch/Kconfig" +config ARCH_CC_CAN_LINK + bool + default $(cc_can_link_user,-m64) if 64BIT + default $(cc_can_link_user,-m31) + +config ARCH_USERFLAGS + string + default "-m64" if 64BIT + default "-m31" + config ARCH_SUPPORTS_KEXEC def_bool y -- 2.51.0
