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[23.128.96.18]) by mx.google.com with ESMTP id r25si2548195edi.172.2020.06.18.10.49.44; Thu, 18 Jun 2020 10:50:07 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@google.com header.s=20161025 header.b=fAXDSFhj; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=google.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729219AbgFRJcP (ORCPT + 99 others); Thu, 18 Jun 2020 05:32:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37500 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728943AbgFRJcE (ORCPT ); Thu, 18 Jun 2020 05:32:04 -0400 Received: from mail-qk1-x749.google.com (mail-qk1-x749.google.com [IPv6:2607:f8b0:4864:20::749]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 02371C06174E for ; Thu, 18 Jun 2020 02:32:04 -0700 (PDT) Received: by mail-qk1-x749.google.com with SMTP id a6so3996647qka.9 for ; Thu, 18 Jun 2020 02:32:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=086vfv3gPPfJZ5VO4SEM366I1+MoqC/R0oD42Imdbh8=; b=fAXDSFhjAVW4D6Zy29LknWSqsBJPV7OzLPf+6YGVWWFtRLCpfWLWCTqnk00WsdEqgk nrmwG5o35UyKtRhmjzOZi9ZKNni8p0ucP+WXj8VRjDptiqWY8ns0pHEjH6Tr9tGa3T7S /aZ5M+vvTdTctOQ12ZJ4lCwqda/aajsZkK7EnSe8+ngTN9Pg2cvj9AUEzh2JJB/gSL/a af7HqmAVCufSsJJwNR9+epbZqE37Iq/Min3EpcTyQQvaPHuhysdkJAqRr8+1JBscNhjY 8JvNhKSHylMudoZdr7iedjpRNhapca1tJSKmp/8xDu9WeGFdjhRjsSNz1m+qpaNL2TUI 8SUg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=086vfv3gPPfJZ5VO4SEM366I1+MoqC/R0oD42Imdbh8=; b=G+5baya7UVRg0gIwgqklfORx5TAb2VRLj6aORIy2FDfunUUibjmuciKW98Y2KBa1w/ f/ZXfqSpqr8F3gueiLEZuqt/4OSNInoGd3KCz/YxDyLs+Bg7FIwxvikKRngo21G6xQ00 aZwdE8nZ1PR5UKxFB3W7BidIZhz9/tXlaRvlMWHmzU9FRDmMaxS+oQUnOm9rQCvxFikF Yx0Kmz2DezmSot5Y5WOWBDo/1AKWavKThM23Rxg9sB2aWYmtQ75X1/KJl9/dFxGu4viQ dWB/mPkIt7SF5xbll6LkW4jkODUY9NPpKZDMIhq3KMlnyjZKKMWkvwMiNv/7fu6nQKE9 AP3Q== X-Gm-Message-State: AOAM530K9H4/IsVUKBU2DPBjx5evH8P226hGBTstlUEj0iILF723Pj73 vh7CmsXqkSxIADgPxyfqE0hyzzQDAw== X-Received: by 2002:ad4:50c4:: with SMTP id e4mr2848394qvq.45.1592472722603; Thu, 18 Jun 2020 02:32:02 -0700 (PDT) Date: Thu, 18 Jun 2020 11:31:17 +0200 In-Reply-To: <20200618093118.247375-1-elver@google.com> Message-Id: <20200618093118.247375-3-elver@google.com> Mime-Version: 1.0 References: <20200618093118.247375-1-elver@google.com> X-Mailer: git-send-email 2.27.0.290.gba653c62da-goog Subject: [PATCH 2/3] kcsan: Simplify compiler flags From: Marco Elver To: elver@google.com, paulmck@kernel.org Cc: will@kernel.org, peterz@infradead.org, bp@alien8.de, tglx@linutronix.de, mingo@kernel.org, dvyukov@google.com, cai@lca.pw, kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Simplify the set of compiler flags for the runtime by removing cc-option from -fno-stack-protector, because all supported compilers support it. This saves us one compiler invocation during build. Signed-off-by: Marco Elver --- kernel/kcsan/Makefile | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/kcsan/Makefile b/kernel/kcsan/Makefile index 092ce58d2e56..fea064afc4f7 100644 --- a/kernel/kcsan/Makefile +++ b/kernel/kcsan/Makefile @@ -7,8 +7,8 @@ CFLAGS_REMOVE_core.o = $(CC_FLAGS_FTRACE) CFLAGS_REMOVE_debugfs.o = $(CC_FLAGS_FTRACE) CFLAGS_REMOVE_report.o = $(CC_FLAGS_FTRACE) -CFLAGS_core.o := $(call cc-option,-fno-conserve-stack,) \ - $(call cc-option,-fno-stack-protector,) +CFLAGS_core.o := $(call cc-option,-fno-conserve-stack) \ + -fno-stack-protector obj-y := core.o debugfs.o report.o obj-$(CONFIG_KCSAN_SELFTEST) += selftest.o -- 2.27.0.290.gba653c62da-goog