From 1a0f24878eb5ca56dff5f20b9f0e716947dc0394 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Fri, 14 Sep 2012 13:22:48 +0200 Subject: [PATCH] s390/ipl,decrompressor: disable branch profiling The early kernel decrompressing code can't call into the kernel in order to profile branches. Fixes this link error: arch/s390/boot/compressed/misc.o: In function `decompress_kernel': misc.c:(.text+0x9a6): undefined reference to `ftrace_likely_update' Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- arch/s390/boot/compressed/Makefile | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/s390/boot/compressed/Makefile b/arch/s390/boot/compressed/Makefile index 10e22c4ec4a7..3ad8f61c9985 100644 --- a/arch/s390/boot/compressed/Makefile +++ b/arch/s390/boot/compressed/Makefile @@ -11,6 +11,7 @@ targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 \ sizes.h head$(BITS).o KBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2 +KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING KBUILD_CFLAGS += $(cflags-y) KBUILD_CFLAGS += $(call cc-option,-mpacked-stack) KBUILD_CFLAGS += $(call cc-option,-ffreestanding) -- 2.39.5