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[24.155.109.49]) by smtp.gmail.com with ESMTPSA id w17sm5645274otk.12.2019.01.21.07.53.18 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 21 Jan 2019 07:53:18 -0800 (PST) Date: Mon, 21 Jan 2019 09:53:17 -0600 From: Rob Herring To: Masahiro Yamada Cc: linux-kbuild@vger.kernel.org, Martin Schwidefsky , linux-s390@vger.kernel.org, Borislav Petkov , linux-mips@vger.kernel.org, James Hogan , x86@kernel.org, Thomas Gleixner , Ralf Baechle , devicetree@vger.kernel.org, "H. Peter Anvin" , Benjamin Herrenschmidt , Michal Marek , Paul Burton , Ingo Molnar , Michael Ellerman , Heiko Carstens , linux-kernel@vger.kernel.org, Paul Mackerras , Mark Rutland , linuxppc-dev@lists.ozlabs.org Subject: Re: [PATCH v2 3/4] kbuild: add real-prereqs shorthand for $(filter-out FORCE,$^) Message-ID: <20190121155317.GA7426@bogus> References: <1547719364-18849-1-git-send-email-yamada.masahiro@socionext.com> <1547719364-18849-3-git-send-email-yamada.masahiro@socionext.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1547719364-18849-3-git-send-email-yamada.masahiro@socionext.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-mips-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org On Thu, Jan 17, 2019 at 07:02:43PM +0900, Masahiro Yamada wrote: > In Kbuild, if_changed and friends must have FORCE as a prerequisite. > > Hence, $(filter-out FORCE,$^) or $(filter-out $(PHONY),$^) is a common > pattern to get the names of all the prerequisites except phony targets. > > Add real-prereqs as a shorthand. > > Note: > We cannot replace $(filter %.o,$^) in cmd_link_multi-m because $^ may > include auto-generated dependencies from the .*.cmd file when a single > object module is changed into a multi object module. Refer to commit > 69ea912fda74 ("kbuild: remove unneeded link_multi_deps"). I added some > comment to avoid accidental breakage. > > Signed-off-by: Masahiro Yamada > --- > > The patch context depends on some other ones. > Please use 'git am -C1' if you want to test this > on Linus' tree. > > > Changes in v2: > - clean up arch/s390/boot/Makefile as well > > Documentation/devicetree/bindings/Makefile | 2 +- Acked-by: Rob Herring > arch/mips/boot/Makefile | 2 +- > arch/powerpc/boot/Makefile | 2 +- > arch/s390/boot/Makefile | 2 +- > arch/x86/realmode/rm/Makefile | 3 +-- > scripts/Kbuild.include | 4 ++++ > scripts/Makefile.build | 9 ++++++--- > scripts/Makefile.lib | 18 +++++++++--------- > scripts/Makefile.modpost | 2 +- > 9 files changed, 25 insertions(+), 19 deletions(-)