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[23.128.96.18]) by mx.google.com with ESMTP id qw29si9786648ejc.71.2021.10.15.10.57.25; Fri, 15 Oct 2021 10:57:48 -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=@linutronix.de header.s=2020 header.b=HIW70PDi; dkim=neutral (no key) header.i=@linutronix.de; 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=NONE sp=QUARANTINE dis=NONE) header.from=linutronix.de Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237868AbhJOJri (ORCPT + 99 others); Fri, 15 Oct 2021 05:47:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46204 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237753AbhJOJrR (ORCPT ); Fri, 15 Oct 2021 05:47:17 -0400 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B37E1C061767; Fri, 15 Oct 2021 02:45:02 -0700 (PDT) Date: Fri, 15 Oct 2021 09:45:00 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1634291101; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=QJxYj4zKjdCALeQv0WNWk/FdvlTGQpnYSzmxhrfnvq8=; b=HIW70PDi4tzfWggoeFnnVwOq5agIspx+SfrqlgBnvauJciW/6mz/NxXnpyyXNt/jK8dZhp l9QpLOiVaWMGbuHSOhXQgxsByYeC4thADoLaTcm6iE3MqGI4R7WTpQBgwlsdGtstHnZngi FS2xlcgKMFuUPaQzLo7yqB37CqBRHXj97HCqzA+kWIl4ZcaADZJsQI7/NnyczQjSt7FZkf 1cPxbh6gbmNbxrdLFJEXdMnwk/dM9ZVEVDBDVTmdlB2cyg1FpH9RM3ejrRzrsIrxZB3x6j 3uq63kCcP4G5iU2D/edDsFKosIXwtdG7LjMjFkiUDHKpprtGzzd4+CisOLO5cg== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1634291101; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=QJxYj4zKjdCALeQv0WNWk/FdvlTGQpnYSzmxhrfnvq8=; b=2leVS+hkp4xI6DT+XgnDWRWQ4F6eUx2sgKs+b+zZgqk3gBNdfNXBhIkTcp5facryv4P74O PnF3Nz3oR2eZH7Dw== From: "tip-bot2 for Peter Zijlstra" Sender: tip-bot2@linutronix.de Reply-to: linux-kernel@vger.kernel.org To: linux-tip-commits@vger.kernel.org Subject: [tip: sched/core] sched: Disable -Wunused-but-set-variable Cc: "Peter Zijlstra (Intel)" , Nathan Chancellor , x86@kernel.org, linux-kernel@vger.kernel.org In-Reply-To: References: MIME-Version: 1.0 Message-ID: <163429110057.25758.11301671308206196345.tip-bot2@tip-bot2> Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The following commit has been merged into the sched/core branch of tip: Commit-ID: 37b47298ab864fb3f5488ddebfc35267ceab0553 Gitweb: https://git.kernel.org/tip/37b47298ab864fb3f5488ddebfc35267ceab0553 Author: Peter Zijlstra AuthorDate: Tue, 12 Oct 2021 16:08:07 +02:00 Committer: Peter Zijlstra CommitterDate: Fri, 15 Oct 2021 11:25:15 +02:00 sched: Disable -Wunused-but-set-variable The compilers can't deal with obvious DCE vs that warning, resulting in code like: if (0) { sched sched_statistics *stats; stats = __schedstats_from_se(se); ... } triggering the warning. Kill the warning to make the robots stop reporting this. Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Nathan Chancellor Link: https://lkml.kernel.org/r/YWWPLnaZGybHsTkv@hirez.programming.kicks-ass.net --- kernel/sched/Makefile | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/kernel/sched/Makefile b/kernel/sched/Makefile index 978fcfc..c7421f2 100644 --- a/kernel/sched/Makefile +++ b/kernel/sched/Makefile @@ -3,6 +3,10 @@ ifdef CONFIG_FUNCTION_TRACER CFLAGS_REMOVE_clock.o = $(CC_FLAGS_FTRACE) endif +# The compilers are complaining about unused variables inside an if(0) scope +# block. This is daft, shut them up. +ccflags-y += $(call cc-disable-warning, unused-but-set-variable) + # These files are disabled because they produce non-interesting flaky coverage # that is not a function of syscall inputs. E.g. involuntary context switches. KCOV_INSTRUMENT := n