From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Tue, 10 Jan 2012 11:12:22 +0800 From: Shawn Guo To: Stephen Warren Subject: Re: [PATCH 2/2] Kbuild: Use dtc's -d (dependency) option Message-ID: <20120110031220.GC23362@S2101-09.ap.freescale.net> References: <1326134295-15547-1-git-send-email-swarren@nvidia.com> <1326134295-15547-2-git-send-email-swarren@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <1326134295-15547-2-git-send-email-swarren@nvidia.com> Cc: Michal Marek , Jon Loeliger , Russell King , linux-c6x-dev@linux-c6x.org, Aurelien Jacquiot , microblaze-uclinux@itee.uq.edu.au, Devicetree Discuss , linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, Rob Herring , linux@lists.openrisc.net, linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org, David Gibson List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Mon, Jan 09, 2012 at 11:38:15AM -0700, Stephen Warren wrote: > This hooks dtc into Kbuild's dependency system. > > Thus, for example, "make dtbs" will rebuild tegra-harmony.dtb if only > tegra20.dtsi has changed yet tegra-harmony.dts has not. The previous > lack of this feature recently caused me to have very confusing "git > bisect" results. > > For ARM, it's obvious what to add to $(targets). I'm not familiar enough > with other architectures to know what to add there. Powerpc appears to > already add various .dtb files into $(targets), but the other archs may > need something added to $(targets) to work. > > Signed-off-by: Stephen Warren Though I did not look into the patches deeply, I know the problem very well and it annoys me a lot. It's great that we have patches to fix it, so Acked-by: Shawn Guo -- Regards, Shawn