On Mon, Sep 29, 2014 at 10:52 AM, Linus Walleij
[off-list ref] wrote:

On Fri, Sep 26, 2014 at 4:19 PM, Jason Cooper [off-list ref] wrote:

quoted

On Fri, Sep 26, 2014 at 02:30:53PM +0200, Linus Walleij wrote:

quoted

Exact patch is:

  f4d4ffc03efc kbuild: dtbs_install: new make target

quoted

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?

Yes!
Tested-by: Linus Walleij <redacted>

Please get this upstream marked for stable.

So is there a proper fix for this coming or not?

I am suffering from this problem :-(

Yours,
Linus Walleij