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 X-Spam-Level: X-Spam-Status: No, score=-4.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1F4E3C10F11 for ; Wed, 10 Apr 2019 16:00:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EAE5D206DF for ; Wed, 10 Apr 2019 16:00:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731980AbfDJQAx (ORCPT ); Wed, 10 Apr 2019 12:00:53 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:44908 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728970AbfDJQAx (ORCPT ); Wed, 10 Apr 2019 12:00:53 -0400 Received: from pps.filterd (m0098399.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x3AFxl8J070974 for ; Wed, 10 Apr 2019 12:00:52 -0400 Received: from e06smtp07.uk.ibm.com (e06smtp07.uk.ibm.com [195.75.94.103]) by mx0a-001b2d01.pphosted.com with ESMTP id 2rshxs65c6-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Wed, 10 Apr 2019 12:00:51 -0400 Received: from localhost by e06smtp07.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Wed, 10 Apr 2019 17:00:46 +0100 Received: from d06av22.portsmouth.uk.ibm.com (d06av22.portsmouth.uk.ibm.com [9.149.105.58]) by b06cxnps4074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x3AG0jq645351048 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 10 Apr 2019 16:00:46 GMT Received: from d06av22.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 95B944C070; Wed, 10 Apr 2019 16:00:45 +0000 (GMT) Received: from d06av22.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 34D894C06F; Wed, 10 Apr 2019 16:00:45 +0000 (GMT) Received: from mschwideX1 (unknown [9.152.212.148]) by d06av22.portsmouth.uk.ibm.com (Postfix) with ESMTP; Wed, 10 Apr 2019 16:00:45 +0000 (GMT) Date: Wed, 10 Apr 2019 18:00:44 +0200 From: Martin Schwidefsky To: Arnd Bergmann Cc: Heiko Carstens , clang-built-linux@googlegroups.com, Nick Desaulniers , Nathan Chancellor , linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 08/12] s390: syscall_wrapper: avoid clang warning In-Reply-To: <20190408212648.2407234-8-arnd@arndb.de> References: <20190408212648.2407234-1-arnd@arndb.de> <20190408212648.2407234-8-arnd@arndb.de> X-Mailer: Claws Mail 3.13.2 (GTK+ 2.24.30; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 x-cbid: 19041016-0028-0000-0000-0000035F651B X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19041016-0029-0000-0000-0000241E8857 Message-Id: <20190410180044.22fbba3f@mschwideX1> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-04-10_07:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=706 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1904100111 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 8 Apr 2019 23:26:21 +0200 Arnd Bergmann wrote: > Building system calls with clang results in a warning > about an alias from a global function to a static one: > > ../fs/namei.c:3847:1: warning: unused function '__se_sys_mkdirat' [-Wunused-function] > SYSCALL_DEFINE3(mkdirat, int, dfd, const char __user *, pathname, umode_t, mode) > ^ > ../include/linux/syscalls.h:219:36: note: expanded from macro 'SYSCALL_DEFINE3' > #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__) > ^ > ../include/linux/syscalls.h:228:2: note: expanded from macro 'SYSCALL_DEFINEx' > __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) > ^ > ../arch/s390/include/asm/syscall_wrapper.h:126:18: note: expanded from macro '__SYSCALL_DEFINEx' > asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ > ^ > :31:1: note: expanded from here > __se_sys_mkdirat > ^ > > The only reference to the static __se_sys_mkdirat() here is the alias, but > this only gets evaluated later. Making this function global as well avoids > the warning. > > Signed-off-by: Arnd Bergmann Added to s390/linux:features for the next merge window. Thanks. -- blue skies, Martin. "Reality continues to ruin my life." - Calvin.