From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 33D3AC00140 for ; Mon, 15 Aug 2022 18:47:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243882AbiHOSrn (ORCPT ); Mon, 15 Aug 2022 14:47:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36346 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240850AbiHOSmW (ORCPT ); Mon, 15 Aug 2022 14:42:22 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BAFF02B279; Mon, 15 Aug 2022 11:26:18 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 5829B60FA2; Mon, 15 Aug 2022 18:26:18 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 551FCC433D6; Mon, 15 Aug 2022 18:26:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660587977; bh=mIIcZD7vR4zKBVHFqkA/lsn+TUQR5ZqSZ69Po6wYodE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=i10N7R3TIcOlBAT2P/ipgZmLMKxQ5mDp2O3tFfR4AKGIEDrL8dYKV1FdbRAXR7IG0 IINmeHVvay35c5uOWcMl5CcUdLCF+nyuCF2yuVfMiFbHpkzSJHbCSqIhtKwFqZ8wc1 KX8R3JWsLqoMIBdaYwB4M09kaWhd8UL/SqAd5prE= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, YiFei Zhu , Kees Cook , Sasha Levin Subject: [PATCH 5.15 225/779] selftests/seccomp: Fix compile warning when CC=clang Date: Mon, 15 Aug 2022 19:57:49 +0200 Message-Id: <20220815180346.911867097@linuxfoundation.org> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220815180337.130757997@linuxfoundation.org> References: <20220815180337.130757997@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: YiFei Zhu [ Upstream commit 3ce4b78f73e8e00fb86bad67ee7f6fe12019707e ] clang has -Wconstant-conversion by default, and the constant 0xAAAAAAAAA (9 As) being converted to an int, which is generally 32 bits, results in the compile warning: clang -Wl,-no-as-needed -Wall -isystem ../../../../usr/include/ -lpthread seccomp_bpf.c -lcap -o seccomp_bpf seccomp_bpf.c:812:67: warning: implicit conversion from 'long' to 'int' changes value from 45812984490 to -1431655766 [-Wconstant-conversion] int kill = kill_how == KILL_PROCESS ? SECCOMP_RET_KILL_PROCESS : 0xAAAAAAAAA; ~~~~ ^~~~~~~~~~~ 1 warning generated. -1431655766 is the expected truncation, 0xAAAAAAAA (8 As), so use this directly in the code to avoid the warning. Fixes: 3932fcecd962 ("selftests/seccomp: Add test for unknown SECCOMP_RET kill behavior") Signed-off-by: YiFei Zhu Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20220526223407.1686936-1-zhuyifei@google.com Signed-off-by: Sasha Levin --- tools/testing/selftests/seccomp/seccomp_bpf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/seccomp/seccomp_bpf.c b/tools/testing/selftests/seccomp/seccomp_bpf.c index 34ebd1fe5eed..ac340a9c0918 100644 --- a/tools/testing/selftests/seccomp/seccomp_bpf.c +++ b/tools/testing/selftests/seccomp/seccomp_bpf.c @@ -802,7 +802,7 @@ void kill_thread_or_group(struct __test_metadata *_metadata, .len = (unsigned short)ARRAY_SIZE(filter_thread), .filter = filter_thread, }; - int kill = kill_how == KILL_PROCESS ? SECCOMP_RET_KILL_PROCESS : 0xAAAAAAAAA; + int kill = kill_how == KILL_PROCESS ? SECCOMP_RET_KILL_PROCESS : 0xAAAAAAAA; struct sock_filter filter_process[] = { BPF_STMT(BPF_LD|BPF_W|BPF_ABS, offsetof(struct seccomp_data, nr)), -- 2.35.1