On Wed, Jun 15, 2016 at 05:45:47PM +0200, Arnd Bergmann wrote:

When building with separate object directories and driver specific
Makefiles that add additional header include paths, Kbuild adjusts
the gcc flags so that we include both the directory in the source
tree and in the object tree.

However, due to another bug I fixed earlier, this did not actually
include the correct directory in the object tree, so we know that
we only really need the source tree here. Also, including the
object tree sometimes causes warnings about nonexisting directories
when the include path only exists in the source.

This changes the logic to only emit the -I argument for the srctree,
not for objects. We still need both $(srctree)/$(src) and $(obj)
though, so I'm adding them manually.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Hi Arnd,

I applied the series up to this patch to kbuild.git#kbuild. The rest
seem to be related but not dependent patches, so I'll leave it up to the
respective maintainers to pick them up. Is that OK with you?

Thanks,
Michal