Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752561Ab3DON71 (ORCPT ); Mon, 15 Apr 2013 09:59:27 -0400 Received: from kiruna.synopsys.com ([198.182.44.80]:42802 "EHLO kiruna.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750911Ab3DON7Y (ORCPT ); Mon, 15 Apr 2013 09:59:24 -0400 Message-ID: <516C07AC.6070608@synopsys.com> Date: Mon, 15 Apr 2013 19:29:08 +0530 From: Vineet Gupta User-Agent: Mozilla/5.0 (X11; Linux i686; rv:17.0) Gecko/20130329 Thunderbird/17.0.5 MIME-Version: 1.0 To: Stephen Warren CC: "linux-arch@vger.kernel.org" , , Michal Marek , Stephen Warren , Grant Likely , , Sam Ravnborg Subject: Re: [PATCH] Kbuild: Avoid DTB rebuilds if source files are untouched References: <1364973141-16354-1-git-send-email-vgupta@synopsys.com> <515BD6B8.1020607@synopsys.com> <515C5652.8070705@wwwdotorg.org> <515D0FFB.4030803@synopsys.com> <515DBA0E.6000604@wwwdotorg.org> <51642158.3070205@synopsys.com> <5167BA67.5080403@synopsys.com> <5168822C.6040303@wwwdotorg.org> In-Reply-To: <5168822C.6040303@wwwdotorg.org> X-Enigmail-Version: 1.5.1 Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.12.197.39] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1433 Lines: 42 On 04/13/2013 03:22 AM, Stephen Warren wrote: > > After installing the ARC toolchain (which was a bit painful to track > down and install...) Sorry about that - we have a buildroot based distro about to be pushed upstream - that would make it easier. > I reproduced your exact problem. I believe the > patch below fixes it: > > diff --git a/arch/arc/boot/dts/Makefile b/arch/arc/boot/dts/Makefile > index 5776835..2f2cf23 100644 > --- a/arch/arc/boot/dts/Makefile > +++ b/arch/arc/boot/dts/Makefile > @@ -8,6 +8,8 @@ endif > obj-y += $(builtindtb-y).dtb.o > targets += $(builtindtb-y).dtb > > +.SECONDARY: $(obj)/$(builtindtb-y).dtb.S > + > dtbs: $(addprefix $(obj)/, $(builtindtb-y).dtb) > > clean-files := *.dtb Indeed it does - I fell stupid why this didn't occur to me. But given that you have dealt with the dtb Makefile stuff alot more than I have :-) do you know why it was not working when put in Makefile.lib because I feel a few other arches also suffer from the same issue and would need similar fixes. Anyhow, for the patch, I can manually add --author="you" but it'll still lack your SOB - you OK with that or do you want to send a formal patch. Thx, -Vineet -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/