From patchwork Fri May 10 14:10:09 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Masahiro Yamada X-Patchwork-Id: 163865 Delivered-To: patch@linaro.org Received: by 2002:a05:6e02:142:0:0:0:0 with SMTP id j2csp2424992ilr; Fri, 10 May 2019 07:11:59 -0700 (PDT) X-Google-Smtp-Source: APXvYqwWD3tqFIbkVklcwjhs2f5HiEYyhN2f6Qq83wbwzGiKpU8TRXivrCdaeq1wnTv/iGOGzpBM X-Received: by 2002:aa7:8f22:: with SMTP id y2mr2153589pfr.22.1557497519698; Fri, 10 May 2019 07:11:59 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1557497519; cv=none; d=google.com; s=arc-20160816; b=IBAktWWS/8fYLhh5Avk4qTDzEX6zaqsZF2xLdC/TTSLQZSDjLjGbc5j0KMfBjrSYQO PaltYiLCGb189DJJ18FtbD18gHNPx20mrfpWt8WvbILx7Op+QBsuNlVhwJoZU4SFGNCB OG7afK1rsxJ2JLcE9eW3174xDcEGUwGH8zjIL21nZwDzuXAg73gh2P91ql34NvqAhnRt dNubRh4sK3ccNgw87UfUW5asmrhSSlSyfN3yrx8kf344XoK2xvvv4WJVa6+B9kxtziME Aud6Fq1blMt/4F+HbrCFZ3aAGfQeNuYqbEk1YpRaMyUDTiSlSvbzNBfv3GwxFX7mEva5 Bj7A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:message-id:date:subject:cc:to:from :dkim-signature:dkim-filter; bh=Oy/LP6hzEmBXLELKYnrmP4Bnv4NlLvZi0tNNCiNNH8Q=; b=n1HJ/oHN5dGpZIEC69nwxuy+AvBTbxRaAmQLH7Hi8lww24ETTpv7gGE/RAFYXjmPw0 tLmds9dJyJ4jS7k9DAj2SAfEx/iklv208nupoteJWlpnj998VI0eZ98OGpTpinac22RY 1ZjX8WDj7SvxD5m11rpuYbXI3Yd3ynPWse3p4I+kp6bWManmoK1xKkgyEKZzjOpsZ7t6 NLOvbGKZdsZX22982xVPJS3UNrtcnMxZi4lKKU8yUZjREBD7s2V4Y/6yEfpIsXTqa3dI WFk+veomSVnqel2veDZbHM/CdzkwBnoXiAri7zjhurOGjTAOtR4vsJxI2TQVFwQ5E2Bu bBqw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@nifty.com header.s=dec2015msa header.b=uUnPMcFn; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id s36si7903509pga.19.2019.05.10.07.11.58; Fri, 10 May 2019 07:11:58 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@nifty.com header.s=dec2015msa header.b=uUnPMcFn; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727846AbfEJOLN (ORCPT + 30 others); Fri, 10 May 2019 10:11:13 -0400 Received: from conuserg-09.nifty.com ([210.131.2.76]:61512 "EHLO conuserg-09.nifty.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727521AbfEJOLM (ORCPT ); Fri, 10 May 2019 10:11:12 -0400 Received: from grover.flets-west.jp (softbank126125154139.bbtec.net [126.125.154.139]) (authenticated) by conuserg-09.nifty.com with ESMTP id x4AEAFCf008100; Fri, 10 May 2019 23:10:15 +0900 DKIM-Filter: OpenDKIM Filter v2.10.3 conuserg-09.nifty.com x4AEAFCf008100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nifty.com; s=dec2015msa; t=1557497416; bh=Oy/LP6hzEmBXLELKYnrmP4Bnv4NlLvZi0tNNCiNNH8Q=; h=From:To:Cc:Subject:Date:From; b=uUnPMcFnMzrI33Dc9KZd3Nf9kFijVCJ8iDojgvoT97Yjp2rG6kn5Id9VDERXAw7/+ wqMqTDHfKGWgn7CNZbkuWndgrGgqqcK/WJHM5CtKuQQ4ShsTbRzhG6ULGourd98M7J 2x1dQ87jOPcs3xOSheIDPf76f13i4j3+nNrIO3RxA+Qr0D8K14t3w2mIN+OzAitf3H 1Iy1E5WM5vt0F3JyFGY/oo2CXax+MPIfoghMwWPEWpc8KtaJPqBCWkQU+erfsQHath dJt/s6gFNQUKWh3KSW8ncBbXMdR46onMr9dVn31ufiQkM0Vw3Or4FHC/6kXZoDDu9T JutYuuqzjx6CA== X-Nifty-SrcIP: [126.125.154.139] From: Masahiro Yamada To: linux-kbuild@vger.kernel.org Cc: Nick Desaulniers , Nathan Chancellor , Sedat Dilek , Masahiro Yamada , Michal Marek , linux-kernel@vger.kernel.org Subject: [PATCH v2] kbuild: add all Clang-specific flags unconditionally Date: Fri, 10 May 2019 23:10:09 +0900 Message-Id: <1557497409-18037-1-git-send-email-yamada.masahiro@socionext.com> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org We do not support old Clang versions. Upgrade your clang version if any of these flags is unsupported. Let's add all flags within ifdef CONFIG_CC_IS_CLANG unconditionally. Signed-off-by: Masahiro Yamada Reviewed-by: Sedat Dilek Reviewed-by: Nathan Chancellor Tested-by: Nick Desaulniers --- Changes in v2: - Rebase on top of Nathan's patch https://patchwork.kernel.org/patch/10937055/ Makefile | 10 +++++----- scripts/Makefile.extrawarn | 12 ++++++------ 2 files changed, 11 insertions(+), 11 deletions(-) -- 2.7.4 diff --git a/Makefile b/Makefile index 914a3ad..1152fc4 100644 --- a/Makefile +++ b/Makefile @@ -731,15 +731,15 @@ stackp-flags-$(CONFIG_STACKPROTECTOR_STRONG) := -fstack-protector-strong KBUILD_CFLAGS += $(stackp-flags-y) ifdef CONFIG_CC_IS_CLANG -KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,) -KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier) -KBUILD_CFLAGS += $(call cc-disable-warning, gnu) +KBUILD_CPPFLAGS += -Qunused-arguments +KBUILD_CFLAGS += -Wno-format-invalid-specifier +KBUILD_CFLAGS += -Wno-gnu # Quiet clang warning: comparison of unsigned expression < 0 is always false -KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare) +KBUILD_CFLAGS += -Wno-tautological-compare # CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the # source of a reference will be _MergedGlobals and not on of the whitelisted names. # See modpost pattern 2 -KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,) +KBUILD_CFLAGS += -mno-global-merge else # These warnings generated too much noise in a regular build. diff --git a/scripts/Makefile.extrawarn b/scripts/Makefile.extrawarn index 768306a..523c4ca 100644 --- a/scripts/Makefile.extrawarn +++ b/scripts/Makefile.extrawarn @@ -66,11 +66,11 @@ KBUILD_CFLAGS += $(warning) else ifdef CONFIG_CC_IS_CLANG -KBUILD_CFLAGS += $(call cc-disable-warning, initializer-overrides) -KBUILD_CFLAGS += $(call cc-disable-warning, unused-value) -KBUILD_CFLAGS += $(call cc-disable-warning, format) -KBUILD_CFLAGS += $(call cc-disable-warning, sign-compare) -KBUILD_CFLAGS += $(call cc-disable-warning, format-zero-length) -KBUILD_CFLAGS += $(call cc-disable-warning, uninitialized) +KBUILD_CFLAGS += -Wno-initializer-overrides +KBUILD_CFLAGS += -Wno-unused-value +KBUILD_CFLAGS += -Wno-format +KBUILD_CFLAGS += -Wno-sign-compare +KBUILD_CFLAGS += -Wno-format-zero-length +KBUILD_CFLAGS += -Wno-uninitialized endif endif