[PATCH] x86/purgatory: Remove -MD from KBUILD_CFLAGS

From: Sven Wegener
Date: Sat Mar 24 2018 - 17:38:11 EST


The kernel build system already takes care of generating the dependency
files. Having the additional -MD in KBUILD_CFLAGS leads to stray
.<pid>.d files in the build directory when we call the cc-option macro.

Signed-off-by: Sven Wegener <sven.wegener@xxxxxxxxxxx>
---
arch/x86/purgatory/Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/purgatory/Makefile b/arch/x86/purgatory/Makefile
index 2f15a2ac4209..d70c15de417b 100644
--- a/arch/x86/purgatory/Makefile
+++ b/arch/x86/purgatory/Makefile
@@ -16,7 +16,7 @@ KCOV_INSTRUMENT := n
# in turn leaves some undefined symbols like __fentry__ in purgatory and not
# sure how to relocate those. Like kexec-tools, use custom flags.

-KBUILD_CFLAGS := -fno-strict-aliasing -Wall -Wstrict-prototypes -fno-zero-initialized-in-bss -fno-builtin -ffreestanding -c -MD -Os -mcmodel=large
+KBUILD_CFLAGS := -fno-strict-aliasing -Wall -Wstrict-prototypes -fno-zero-initialized-in-bss -fno-builtin -ffreestanding -c -Os -mcmodel=large
KBUILD_CFLAGS += -m$(BITS)
KBUILD_CFLAGS += $(call cc-option,-fno-PIE)