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From: Jason Cooper <jason@lakedaemon.net>
To: Linus Walleij <linus.walleij@linaro.org>
Cc: Grant Likely <grant.likely@secretlab.ca>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Rob Herring <rob.herring@linaro.org>
Subject: Re: [git pull] Devicetree changes for v3.15
Date: Fri, 26 Sep 2014 10:19:43 -0400	[thread overview]
Message-ID: <20140926141943.GC23926@titan.lakedaemon.net> (raw)
In-Reply-To: <CACRpkdZoo=P7uTO1rNDD_HUPjfAk26C0=mNYPoZmTV0wcO3V-w@mail.gmail.com>

Linus,

On Fri, Sep 26, 2014 at 02:30:53PM +0200, Linus Walleij wrote:
> On Tue, Apr 1, 2014 at 12:15 PM, Grant Likely <grant.likely@secretlab.ca> wrote:
> 
> > Here are the dt changes I've got queued up for v3.15. The full
> > description is below in the tag. Please pull.
> (...)
> > Jason Cooper (1):
> >       kbuild: dtbs_install: new make target

Exact patch is:

  f4d4ffc03efc kbuild: dtbs_install: new make target

> After this patch a while back I have observed the following behaviour
> of the kernel build:
> 
> make zImage
> make zImage
> -> incremental build, just relink
> 
> make zImage
> make dtbs
> make zImage
> -> The whole kernel gets rebuilt
> 
> So now if I happen to recompile my device trees, I suddenly want
> the entire zImage to be rebuilt to? It's by definition not changes that
> affect the kernel build :-(
> 
> I noticed this because my build scripts calls make dtbs && make zImage,
> and started to rebuild absolutely everything all the time.
> 
> Do you think this can be fixed? It's quite simple to reproduce...

Does the attached fix your problem?

thx,

Jason.

----------->8------------------------------------------
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 0ce9d0f71f2a..a88b13af58d2 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -313,7 +313,9 @@ $(INSTALL_TARGETS):
 	$(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $(boot)/dts/$@
 
 PHONY += dtbs dtbs_install
-dtbs dtbs_install: prepare scripts
+dtbs: scripts
+	$(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $@
+dtbs_install: prepare scripts
 	$(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $@
 
 # We use MRPROPER_FILES and CLEAN_FILES now

  reply	other threads:[~2014-09-26 14:19 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-04-01 10:15 Grant Likely
2014-04-01 19:42 ` Paul Bolle
2014-04-01 20:18   ` Rob Herring
2014-04-01 20:34     ` Paul Bolle
2014-04-01 20:32   ` Grant Likely
2014-04-01 20:39     ` Grant Likely
2014-04-01 20:46     ` Paul Bolle
2014-09-26 12:30 ` Linus Walleij
2014-09-26 14:19   ` Jason Cooper [this message]
2014-09-29  8:52     ` Linus Walleij
2014-10-27 15:39       ` Linus Walleij
2014-11-02 20:52         ` [PATCH] ARM: kbuild: Fix forced rebuild after 'make dtbs' Jason Cooper
2014-11-25 21:41           ` Michal Marek
2014-11-25 23:51             ` Russell King - ARM Linux
2014-11-26  0:57               ` Jason Cooper
2014-11-26 13:57                 ` Linus Walleij
2014-11-26 14:41                   ` Russell King - ARM Linux
2014-11-28 14:10                     ` Linus Walleij
2014-12-01 13:55                       ` Michal Marek
2014-12-04 11:22                         ` Grant Likely
2014-12-04 11:24                           ` Russell King - ARM Linux
2014-11-26  9:39               ` Michal Marek
2014-09-29 12:49     ` [git pull] Devicetree changes for v3.15 Grant Likely
2014-09-29 13:52       ` Jason Cooper

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