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Date: Tue, 31 Oct 2017 05:05:31 -0700 From: tip-bot for Matthias Kaehlcke <tipbot@...or.com> To: linux-tip-commits@...r.kernel.org Cc: mka@...omium.org, linux-kernel@...r.kernel.org, tglx@...utronix.de, mingo@...nel.org, groeck@...omium.org, torvalds@...ux-foundation.org, dianders@...omium.org, hpa@...or.com, nick.desaulniers@...il.com, peterz@...radead.org Subject: [tip:x86/boot] x86/boot: Disable Clang warnings about GNU extensions Commit-ID: 6c3b56b1973083e2bb4e87eb90ea5368455706dc Gitweb: https://git.kernel.org/tip/6c3b56b1973083e2bb4e87eb90ea5368455706dc Author: Matthias Kaehlcke <mka@...omium.org> AuthorDate: Mon, 30 Oct 2017 12:43:51 -0700 Committer: Ingo Molnar <mingo@...nel.org> CommitDate: Tue, 31 Oct 2017 10:54:30 +0100 x86/boot: Disable Clang warnings about GNU extensions The kernel makes use of several GCC extensions, disable Clang warnings about that in the boot code, as we already do for the rest of the kernel. This suppresses the following warning when building with clang: ./include/linux/cgroup-defs.h:391:16: warning: field 'cgrp' with variable sized type 'struct cgroup' not at the end of a struct or class is a GNU extension [-Wgnu-variable-sized-type-not-at-end] struct cgroup cgrp; Reported-by: Nick Desaulniers <nick.desaulniers@...il.com> Signed-off-by: Matthias Kaehlcke <mka@...omium.org> Acked-by: Thomas Gleixner <tglx@...utronix.de> Cc: Douglas Anderson <dianders@...omium.org> Cc: Guenter Roeck <groeck@...omium.org> Cc: Linus Torvalds <torvalds@...ux-foundation.org> Cc: Peter Zijlstra <peterz@...radead.org> Link: http://lkml.kernel.org/r/20171030194351.122090-1-mka@chromium.org Signed-off-by: Ingo Molnar <mingo@...nel.org> --- arch/x86/boot/compressed/Makefile | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile index 8a95827..65a150a 100644 --- a/arch/x86/boot/compressed/Makefile +++ b/arch/x86/boot/compressed/Makefile @@ -35,6 +35,7 @@ KBUILD_CFLAGS += -mno-mmx -mno-sse KBUILD_CFLAGS += $(call cc-option,-ffreestanding) KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member) +KBUILD_CFLAGS += $(call cc-disable-warning, gnu) KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ GCOV_PROFILE := n
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