From f5d284900c0f960e318a063f4c40826b6e3aa6a8 Mon Sep 17 00:00:00 2001 From: Luc Van Oostenryck Date: Tue, 20 Jun 2017 14:24:43 +0200 Subject: [PATCH] arm64: pass machine size to sparse When using sparse on the arm64 tree we get many thousands of warnings like 'constant ... is so big it is unsigned long long' or 'shift too big (32) for type unsigned long'. This happens because by default sparse considers the machine as 32bit and defines the size of the types accordingly. Fix this by passing the '-m64' flag to sparse so that sparse can correctly define longs as being 64bit. CC: Catalin Marinas CC: Will Deacon CC: linux-arm-kernel@lists.infradead.org Signed-off-by: Luc Van Oostenryck Signed-off-by: Will Deacon --- arch/arm64/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile index 1ce57b42f390..fdb0133142ff 100644 --- a/arch/arm64/Makefile +++ b/arch/arm64/Makefile @@ -62,7 +62,7 @@ LD += -EL UTS_MACHINE := aarch64 endif -CHECKFLAGS += -D__aarch64__ +CHECKFLAGS += -D__aarch64__ -m64 ifeq ($(CONFIG_ARM64_MODULE_CMODEL_LARGE), y) KBUILD_CFLAGS_MODULE += -mcmodel=large