From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sam Ravnborg Subject: Re: Lots of "error: multiple storage classes" warnings on the Linux kernel Date: Thu, 19 Aug 2010 21:26:56 +0200 Message-ID: <20100819192656.GA19303@merkur.ravnborg.org> References: <1282222392.10440.60.camel@thorin> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from pfepa.post.tele.dk ([195.41.46.235]:38316 "EHLO pfepa.post.tele.dk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751427Ab0HST05 (ORCPT ); Thu, 19 Aug 2010 15:26:57 -0400 Content-Disposition: inline In-Reply-To: <1282222392.10440.60.camel@thorin> Sender: linux-sparse-owner@vger.kernel.org List-Id: linux-sparse@vger.kernel.org To: Bernd Petrovitsch Cc: linux-sparse@vger.kernel.org On Thu, Aug 19, 2010 at 02:53:12PM +0200, Bernd Petrovitsch wrote: > Hi all! > > While investigating something completely different, I noticed lots of > "error: multiple storage classes" warnings, e.g. > ---- snip ---- > CHECK security/keys/keyring.c > include/linux/sched.h:831:12: error: multiple storage classes: extern weak > security/keys/keyring.c:75:1: error: multiple storage classes: extern weak > security/keys/keyring.c:471:1: error: multiple storage classes: extern weak > security/keys/keyring.c:899:1: error: multiple storage classes: extern weak > security/keys/keyring.c:974:1: error: multiple storage classes: extern weak > security/keys/keyring.c:1033:1: error: multiple storage classes: extern weak > ---- snip ---- > [ The ": extern weak" is from me to see which are actually set. ] > > Is this warning correct that way (and the source should be fixed) or is > the warning in that wrong? Can you cook up a small code snippet that exhibit this without all the kernel macros etc? This would make it easier for the sparse folks to understand. Sam