From mboxrd@z Thu Jan 1 00:00:00 1970 X-GM-THRID: 6249137798348013568 X-Received: by 10.112.16.34 with SMTP id c2mr3931943lbd.19.1455016113506; Tue, 09 Feb 2016 03:08:33 -0800 (PST) X-BeenThere: outreachy-kernel@googlegroups.com Received: by 10.25.20.35 with SMTP id k35ls715730lfi.77.gmail; Tue, 09 Feb 2016 03:08:32 -0800 (PST) X-Received: by 10.112.168.201 with SMTP id zy9mr3919067lbb.23.1455016112926; Tue, 09 Feb 2016 03:08:32 -0800 (PST) Return-Path: Received: from mout.kundenserver.de (mout.kundenserver.de. [212.227.126.130]) by gmr-mx.google.com with ESMTPS id e130si389495wme.2.2016.02.09.03.08.32 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 09 Feb 2016 03:08:32 -0800 (PST) Received-SPF: neutral (google.com: 212.227.126.130 is neither permitted nor denied by best guess record for domain of arnd@arndb.de) client-ip=212.227.126.130; Authentication-Results: gmr-mx.google.com; spf=neutral (google.com: 212.227.126.130 is neither permitted nor denied by best guess record for domain of arnd@arndb.de) smtp.mailfrom=arnd@arndb.de Received: from wuerfel.localnet ([78.42.132.4]) by mrelayeu.kundenserver.de (mreue003) with ESMTPSA (Nemesis) id 0MP3gp-1aQ69H0Af1-006KQo; Tue, 09 Feb 2016 12:08:32 +0100 From: Arnd Bergmann To: outreachy-kernel@googlegroups.com Cc: Bhumika Goyal Subject: Re: [Outreachy kernel] Doubt regarding build warnings Date: Tue, 09 Feb 2016 12:08:31 +0100 Message-ID: <5477208.ntDhW1kj3a@wuerfel> User-Agent: KMail/4.11.5 (Linux/3.16.0-10-generic; KDE/4.11.5; x86_64; ; ) In-Reply-To: <705062da-a84a-41ee-8905-d600ea41529c@googlegroups.com> References: <6075631.lJNnAgFSZy@wuerfel> <705062da-a84a-41ee-8905-d600ea41529c@googlegroups.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-Provags-ID: V03:K0:MiRoaO+1zbkGKPYx2mmo1V43FXgTbr7h62kVpd03UerpQIZyzPE FWoSZYU1s9j0HOT/Fosy1EV0gvupw8iyIcAR5lPIeOeaTkLG/kf6h1RBU7W8TnA5NQzupSE lHqf5mE8gsGI4iKqdTtbFecL8rFjwwTic3Rf3bEUza00835KDZhybNJ6xnr7zyhuO29ILlP pLBt2zKlGPmUhLqU8NgIg== X-UI-Out-Filterresults: notjunk:1;V01:K0:x+XITrNfH3Q=:sacSOsEDItK3eo6rwSIs4E fsSx37sfFBCPiRNAEi7zHxrIb7A7Ia3l8sQ0kI97/JFSs3cic1M7HJutG8rTeiIVqIKV2PK5B gLRipt/xi3jTHzXGbnRRXetHvn6jZcq3+UHYwH3MMijsumx4yvaVspOY69OWqKwvfIuPVn4bA I1Lm2HbFxJ5RKwAVY2oRhIaR7lBvhxmWeAbHfXn+LJUHEatucLMj6qOWHDo09/G/Rpmv1gYy3 HCCUJCtz4sUj36gkSd4viZHsnv5OwTi5ihVtgRvbnjS5WnVIRKkKuqSohwSP0cpPjarwzB+kI m+Kmz1s+I9krQ468XWsiFNBVQfplthGrbuhQDZVl/AyQTtrZaCoyJ7Aku1tBelHIfkXMLfvgc DG5ScsRLngm3fSogZqkdzI9HqKLacH9BdZzSrQ8Fz9/wox1D0LLdsQhEn37jrzPUMMrrIsvJe 22JVZMfgBcfotTvP5hNKZBM8emgBs1fmHeXEf/VUvBlH+cj4xDQp5DpRSr80cagl6soVtKWXa 5Ous0GYchmZh0k0yKp6MZowSHizqI6SB88Rh6GadlE+OgiJpKQzfNeZYFHK4McrIig2Zlqt/3 oI/tuRkOnUMVyHZY0cKYePSwv+JD8XnWOjR7nbi4YomvGxmGxQ/LiyQZTAUu60mvF5/lI+/OI E5qKnwUWzJis2HioniiFFmOqihFlXDzBHva5SPSgYa7kcbOMlaD7TrMrT6jkdg/qbJqSFm6My 7K7k0zguqKbmPliQ On Tuesday 09 February 2016 01:01:37 Bhumika Goyal wrote: > Thank you Arnd .I am not getting any warnings with "make drivers/staging". > Can I know the reason for previous warnings when I used "make M" ? > > The differences are very subtle: make drivers/staging always succeeds, does nothing at all because the directory exists make drivers/staging/ descends into that directory to build all the files in it, but does not try to link the modules make M=drivers/staging From the output you get, I think this must try to link the modules against the previously-build vmlinux file, which for some reason fails here. I suggested doing 'make' to rebuild everything including vmlinux, so it is up-to-date with your current configuration. Arnd