From: tip-bot for Nathan Chancellor <tipbot@zytor.com>
To: linux-tip-commits@vger.kernel.org
Cc: torvalds@linux-foundation.org, julien.thierry@arm.com,
marc.zyngier@arm.com, linux-kernel@vger.kernel.org,
tglx@linutronix.de, zhuyifei1999@gmail.com,
arend.vanspriel@broadcom.com, matt@codeblueprint.co.uk,
eric.snowberg@oracle.com, ard.biesheuvel@linaro.org,
bp@alien8.de, joe@perches.com, peterz@infradead.org,
luto@kernel.org, jonathanh@nvidia.com, mingo@kernel.org,
sedat.dilek@gmail.com, sai.praneeth.prakhya@intel.com,
bhsharma@redhat.com, dave.hansen@intel.com, hpa@zytor.com,
natechancellor@gmail.com, hdegoede@redhat.com
Subject: [tip:efi/core] efi/libstub: Disable some warnings for x86{,_64}
Date: Fri, 30 Nov 2018 01:59:47 -0800 [thread overview]
Message-ID: <tip-3db5e0ba8b8f4aee631d7ee04b7a11c56cfdc213@git.kernel.org> (raw)
In-Reply-To: <20181129171230.18699-8-ard.biesheuvel@linaro.org>
Commit-ID: 3db5e0ba8b8f4aee631d7ee04b7a11c56cfdc213
Gitweb: https://git.kernel.org/tip/3db5e0ba8b8f4aee631d7ee04b7a11c56cfdc213
Author: Nathan Chancellor <natechancellor@gmail.com>
AuthorDate: Thu, 29 Nov 2018 18:12:26 +0100
Committer: Ingo Molnar <mingo@kernel.org>
CommitDate: Fri, 30 Nov 2018 09:10:31 +0100
efi/libstub: Disable some warnings for x86{,_64}
When building the kernel with Clang, some disabled warnings appear
because this Makefile overrides KBUILD_CFLAGS for x86{,_64}. Add them to
this list so that the build is clean again.
-Wpointer-sign was disabled for the whole kernel before the beginning of Git history.
-Waddress-of-packed-member was disabled for the whole kernel and for
the early boot code in these commits:
bfb38988c51e ("kbuild: clang: Disable 'address-of-packed-member' warning")
20c6c1890455 ("x86/boot: Disable the address-of-packed-member compiler warning").
-Wgnu was disabled for the whole kernel and for the early boot code in
these commits:
61163efae020 ("kbuild: LLVMLinux: Add Kbuild support for building kernel with Clang")
6c3b56b19730 ("x86/boot: Disable Clang warnings about GNU extensions").
[ mingo: Made the changelog more readable. ]
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Sedat Dilek <sedat.dilek@gmail.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Arend van Spriel <arend.vanspriel@broadcom.com>
Cc: Bhupesh Sharma <bhsharma@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Eric Snowberg <eric.snowberg@oracle.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Joe Perches <joe@perches.com>
Cc: Jon Hunter <jonathanh@nvidia.com>
Cc: Julien Thierry <julien.thierry@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: YiFei Zhu <zhuyifei1999@gmail.com>
Cc: linux-efi@vger.kernel.org
Link: http://lkml.kernel.org/r/20181129171230.18699-8-ard.biesheuvel@linaro.org
Link: https://github.com/ClangBuiltLinux/linux/issues/112
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
drivers/firmware/efi/libstub/Makefile | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/firmware/efi/libstub/Makefile b/drivers/firmware/efi/libstub/Makefile
index c51627660dbb..d9845099635e 100644
--- a/drivers/firmware/efi/libstub/Makefile
+++ b/drivers/firmware/efi/libstub/Makefile
@@ -9,7 +9,10 @@ cflags-$(CONFIG_X86_32) := -march=i386
cflags-$(CONFIG_X86_64) := -mcmodel=small
cflags-$(CONFIG_X86) += -m$(BITS) -D__KERNEL__ -O2 \
-fPIC -fno-strict-aliasing -mno-red-zone \
- -mno-mmx -mno-sse -fshort-wchar
+ -mno-mmx -mno-sse -fshort-wchar \
+ -Wno-pointer-sign \
+ $(call cc-disable-warning, address-of-packed-member) \
+ $(call cc-disable-warning, gnu)
# arm64 uses the full KBUILD_CFLAGS so it's necessary to explicitly
# disable the stackleak plugin
next prev parent reply other threads:[~2018-11-30 10:00 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-29 17:12 [GIT PULL 00/11] EFI updates Ard Biesheuvel
2018-11-29 17:12 ` [PATCH 01/11] x86/efi: Allocate e820 buffer before calling efi_exit_boot_service Ard Biesheuvel
2018-11-30 7:29 ` Ingo Molnar
2018-11-30 8:26 ` Ard Biesheuvel
2018-11-30 8:36 ` Ingo Molnar
2018-11-30 9:55 ` [tip:efi/core] " tip-bot for Eric Snowberg
2018-11-29 17:12 ` [PATCH 02/11] efi/fdt: Indentation fix Ard Biesheuvel
2018-11-30 7:56 ` [PATCH] efi/fdt: More cleanups Ingo Molnar
2018-11-30 8:31 ` Ard Biesheuvel
2018-11-30 9:48 ` Ingo Molnar
2018-11-30 9:56 ` [tip:efi/core] efi/fdt: Indentation fix tip-bot for Julien Thierry
2018-11-29 17:12 ` [PATCH 03/11] efi/fdt: Simplify get_fdt flow Ard Biesheuvel
2018-11-30 9:57 ` [tip:efi/core] efi/fdt: Simplify the get_fdt() flow tip-bot for Julien Thierry
2018-11-29 17:12 ` [PATCH 04/11] x86/mm/pageattr: Introduce helper function to unmap EFI boot services Ard Biesheuvel
2018-11-30 9:58 ` [tip:efi/core] " tip-bot for Sai Praneeth Prakhya
2018-11-29 17:12 ` [PATCH 05/11] x86/efi: Unmap EFI boot services code/data regions from efi_pgd Ard Biesheuvel
2018-11-30 9:58 ` [tip:efi/core] " tip-bot for Sai Praneeth Prakhya
2018-12-17 18:06 ` Prakhya, Sai Praneeth
2018-12-17 18:10 ` Ard Biesheuvel
2018-12-17 18:42 ` Prakhya, Sai Praneeth
2018-12-17 19:35 ` Ard Biesheuvel
2018-12-17 19:48 ` Prakhya, Sai Praneeth
2018-12-21 17:02 ` Ard Biesheuvel
2018-12-21 17:13 ` Borislav Petkov
2018-12-21 17:26 ` Ard Biesheuvel
2018-12-21 19:29 ` Borislav Petkov
2018-12-22 11:07 ` Ard Biesheuvel
2019-01-07 15:57 ` Matt Fleming
2018-12-21 17:52 ` Prakhya, Sai Praneeth
2018-11-29 17:12 ` [PATCH 06/11] x86/efi: Move efi_<reserve/free>_boot_services() to arch/x86 Ard Biesheuvel
2018-11-30 9:59 ` [tip:efi/core] " tip-bot for Sai Praneeth Prakhya
2018-11-29 17:12 ` [PATCH 07/11] efi/libstub: Disable some warnings for x86{,_64} Ard Biesheuvel
2018-11-30 9:59 ` tip-bot for Nathan Chancellor [this message]
2018-11-29 17:12 ` [PATCH 08/11] firmware: efi: add NULL pointer checks in efivars api functions Ard Biesheuvel
2018-11-30 8:11 ` Ingo Molnar
2018-11-30 8:37 ` Ard Biesheuvel
2018-11-30 9:56 ` [tip:efi/core] firmware/efi: Add NULL pointer checks in efivars API functions tip-bot for Arend van Spriel
2018-11-29 17:12 ` [PATCH 09/11] efi: permit multiple entries in persistent memreserve data structure Ard Biesheuvel
2018-11-30 10:00 ` [tip:efi/core] efi: Permit " tip-bot for Ard Biesheuvel
2018-11-29 17:12 ` [PATCH 10/11] efi: reduce the amount of memblock reservations for persistent allocations Ard Biesheuvel
2018-11-30 8:38 ` Ingo Molnar
2018-11-30 8:39 ` Ard Biesheuvel
2018-11-30 10:00 ` [tip:efi/core] efi: Reduce " tip-bot for Ard Biesheuvel
2018-11-29 17:12 ` [PATCH 11/11] efi/x86: earlyprintk - Fix infinite loop on some screen widths Ard Biesheuvel
2018-11-30 8:05 ` Ingo Molnar
2018-11-30 8:32 ` Ard Biesheuvel
2018-11-30 9:55 ` [tip:efi/core] x86/earlyprintk/efi: " tip-bot for YiFei Zhu
2018-11-29 18:27 ` [GIT PULL 00/11] EFI updates Prakhya, Sai Praneeth
2018-11-30 12:01 ` Ard Biesheuvel
2018-11-30 18:01 ` Prakhya, Sai Praneeth
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