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=-8.1 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FSL_HELO_FAKE,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1, USER_IN_DEF_DKIM_WL autolearn=no 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 5F8BBC10F14 for ; Thu, 3 Oct 2019 10:44:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3595E21D71 for ; Thu, 3 Oct 2019 10:44:01 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="js4G6PHP" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729549AbfJCKoA (ORCPT ); Thu, 3 Oct 2019 06:44:00 -0400 Received: from mail-wm1-f68.google.com ([209.85.128.68]:36296 "EHLO mail-wm1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725892AbfJCKn7 (ORCPT ); Thu, 3 Oct 2019 06:43:59 -0400 Received: by mail-wm1-f68.google.com with SMTP id m18so1910164wmc.1 for ; Thu, 03 Oct 2019 03:43:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=L443QrtbGJzjXrb9cPjFogwzDzBLOTWJckxbc5KAm6g=; b=js4G6PHPUfqE3C3hPfDJj5EMKbSMjV2HW5gUiSmhp4QNJJUh1ocSa1TC82oVye7dyH UseO8Ue5uw+H/XTq4HFjjhrqJ9UUj0otn2bkG5z5efO/MOxe+3N91GlqnH21RRjfunCD /4H1rzwJN/fMDXz9O941Qnwm+2qJz6Jf4G8axscUMda3aTyBqlVVbQ7Glg0LRqBMKFVP 3YnkU0+W4oSnIitGGe7VUZDXtNYukVGBMZyfAe5tBtUU8Jau5m2NHYI/WtrkP+LXVonS gCp31gnixomWEcvGbzv+vpQJWq5GafYgvy79qZHLM7R/eb8CN+xMePXVM5ZyQvzX7MiW g/+Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=L443QrtbGJzjXrb9cPjFogwzDzBLOTWJckxbc5KAm6g=; b=mWfHsrvDJ0Eq+D8SWF+6AGM3mqDNPy8ULj+oXSpLx8wX7dRFqkQu8fpoNWendDgudo cLMixyduPc5gvRX5bU9qY9da5pic4m49XJn2Q394pzSKcM6vf4KCex6nGGfDsfEdOmm+ 0HN1slaJ9/2wLQArArNLVk9M3krwZaUL4HmeS5HMN/47WF1uxvBU3mtTT5TkojLLvfzb OgVXufGBEOLqsTOUCfHVfizQeI2B/zocpp25zEKBEqcPSx8QGnb8lVMzOca8kyV9HAw6 bcgPWVIZSc+2nLLrS1l97slxNWqxEwkMPWv7r0lJYQBuUxgwxtVPnMw7MCKunPTW1Ynn fJWw== X-Gm-Message-State: APjAAAVGJKg4l8ys6Wa3C8uV4DkL4gS2u36XEPHA1qW+DBFZRzVHzA/n tlPF+4fJ7XwhcKhrDGuu/6T1tibiWF0j+A== X-Google-Smtp-Source: APXvYqz/48XqqPRRCh0PtBQsux17HBetTtAD6J08zwekAjJaS/BCoUn3boG9FzEciCT87JI+2nNiRg== X-Received: by 2002:a1c:2388:: with SMTP id j130mr6150051wmj.107.1570099437593; Thu, 03 Oct 2019 03:43:57 -0700 (PDT) Received: from google.com ([2a00:79e0:d:210:e8f7:125b:61e9:733d]) by smtp.gmail.com with ESMTPSA id f8sm1746117wmb.37.2019.10.03.03.43.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 03 Oct 2019 03:43:56 -0700 (PDT) Date: Thu, 3 Oct 2019 11:43:56 +0100 From: Matthias Maennich To: Steve French Cc: LKML , CIFS , Masahiro Yamada , Jessica Yu Subject: Re: nsdeps not working on modules in 5.4-rc1 Message-ID: <20191003104356.GA77584@google.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Steve! On Wed, Oct 02, 2019 at 06:54:26PM -0500, Steve French wrote: >And running the build differently, from the root of the git tree >(5.4-rc1) rather than using the Ubuntu 5.4-rc1 headers also fails > >e.g. "make M=fs/cifs modules nsdeps" > >... > LD [M] fs/cifs/cifs.o > Building modules, stage 2. > MODPOST 1 modules >WARNING: module cifs uses symbol sigprocmask from namespace >_fs/cifs/cache.o), but does not import it. >... >WARNING: module cifs uses symbol posix_test_lock from namespace >cifs/cache.o), but does not import it. > CC [M] fs/cifs/cifs.mod.o > LD [M] fs/cifs/cifs.ko > Building modules, stage 2. > MODPOST 1 modules >./scripts/nsdeps: 34: local: ./fs/cifs/cifsfs.c: bad variable name >make: *** [Makefile:1710: nsdeps] Error 2 Thanks for reporting this. It appears to me you hit a bug that was recently discovered: when building with `make M=some/subdirectory`, modpost is misbehaving. Can you try whether this patch series solves your problems: https://lore.kernel.org/lkml/20191003075826.7478-1-yamada.masahiro@socionext.com/ In particular patch 2/6 out of the series. Cheers, Matthias >On Wed, Oct 2, 2019 at 6:45 PM Steve French wrote: >> >> Following the instructions in Documentation/namespaces to autogenerate >> the namespace changes to avoid the multiple build warnings in 5.4-rc1 >> for my module ... I am not able to get nsdeps to work. For example >> in my module directory (fs/cifs) trying to build with nsdeps: >> >> make -C /usr/src/linux-headers-`uname -r` M=`pwd` modules nsdeps >> >> gets the error "cat: ./modules.order: No such file or directory" >> >> This is on Ubuntu 18, running current 5.4-rc1 kernel. It looks like >> it is looking for modules.order in the wrong directory (it is present >> in fs/cifs - but it looks like it is looking for it in /usr/src where >> of course it won't be found) >> >> I am trying to remove the hundreds of new warnings introduced by >> namespaces in 5.4-rc1 when building my module e.g. >> >> WARNING: module cifs uses symbol __fscache_acquire_cookie from >> namespace .o: $(deps_/home/sfrench/cifs-2.6/fs/cifs/cache.o), but does >> not import it. >> -- >> Thanks, >> >> Steve > > > >-- >Thanks, > >Steve