From eb2606bba1cbac610701d73af25cbff0f3c5b09b Mon Sep 17 00:00:00 2001 From: =?utf8?q?Thomas=20Wei=C3=9Fschuh?= Date: Mon, 22 Dec 2025 09:28:17 +0100 Subject: [PATCH] s390: Implement ARCH_HAS_CC_CAN_LINK MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit The generic CC_CAN_LINK detection relies on -m32/-m64 compiler flags. Some s390 toolchains use -m31 instead but that is not supported in the kernel. Make the logic easier to understand and allow the simplification of the generic CC_CAN_LINK by using a tailored implementation. Signed-off-by: Thomas Weißschuh Signed-off-by: Heiko Carstens --- arch/s390/Kconfig | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 0e5fad5f06ca1..cd856318ffe55 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -85,6 +85,7 @@ 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 @@ -294,6 +295,14 @@ config PGTABLE_LEVELS source "kernel/livepatch/Kconfig" +config ARCH_CC_CAN_LINK + bool + default $(cc_can_link_user,-m64) + +config ARCH_USERFLAGS + string + default "-m64" + config ARCH_SUPPORTS_KEXEC def_bool y -- 2.47.3