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Subject[tip:x86/build] x86/um/vdso: Drop implicit common-page-size linker flag
Commit-ID:  e4f752dda0de351efd198f438b68e743029da68a
Gitweb: https://git.kernel.org/tip/e4f752dda0de351efd198f438b68e743029da68a
Author: Nick Desaulniers <ndesaulniers@google.com>
AuthorDate: Mon, 10 Dec 2018 14:27:16 -0800
Committer: Borislav Petkov <bp@suse.de>
CommitDate: Tue, 11 Dec 2018 14:19:42 +0100

x86/um/vdso: Drop implicit common-page-size linker flag

GNU linker's -z common-page-size's default value is based on the target
architecture. arch/x86/um/vdso/Makefile sets it to the architecture
default, which is implicit and redundant. Drop it so that one more LLVM
build issue gets addressed.

Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Richard Weinberger <richard@nod.at>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-um@lists.infradead.org
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/20181206191231.192355-1-ndesaulniers@google.com
---
arch/x86/um/vdso/Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/um/vdso/Makefile b/arch/x86/um/vdso/Makefile
index 822ccdba93ad..bf94060fc06f 100644
--- a/arch/x86/um/vdso/Makefile
+++ b/arch/x86/um/vdso/Makefile
@@ -26,7 +26,7 @@ targets += vdso.so vdso.so.dbg vdso.lds $(vobjs-y)
CPPFLAGS_vdso.lds += -P -C

VDSO_LDFLAGS_vdso.lds = -m64 -Wl,-soname=linux-vdso.so.1 \
- -Wl,-z,max-page-size=4096 -Wl,-z,common-page-size=4096
+ -Wl,-z,max-page-size=4096

$(obj)/vdso.o: $(src)/vdso.S $(obj)/vdso.so

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