[PATCH] kbuild: Bump the build system to 6.1

[Tom Rini]

On Wed, Feb 11, 2026 at 02:34:59PM +0100, Frieder Schrempf wrote:
> On 16.12.25 10:16, Ilias Apalodimas wrote:
> > From: Sughosh Ganu <sughosh.ganu at linaro.org>
> > 
> > Our last sync with the kernel was 5.1.
> > 
> > We are so out of sync now, that tracking the patches and backporting
> > them one by one makes little sense and it's going to take ages.
> > 
> > This is an attempt to sync up Makefiles to 6.1.
> > Unfortunately due to sheer amount of patches this is not easy to review,
> > but that's what we decided during a community call for the bump to 5.1,
> > so we are following the same guidelines here.
> > 
> > Signed-off-by: Sughosh Ganu <sughosh.ganu at linaro.org>
> > Signed-off-by: Ilias Apalodimas <ilias.apalodimas at linaro.org>a #rebased on -next
> 
> To me, it looks like this is breaking "make cross_tools" in some way. Or
> am I missing something?
> 
> With v2026.04-rc2:
> 
> > make tools-only_defconfig
> > make cross_tools
>   UPD     include/generated/timestamp_autogenerated.h
>   PYMOD   rebuild
> tools/Makefile:359: *** insufficient number of arguments (1) to function
> 'filter'.  Stop.
> make: *** [Makefile:2191: tools] Error 2
> 
> If the problem is not on my end, then I would have assumed the CI would
> be able to catch it. But "make cross_tools" is not part of any test, right?

It is not, but we should add it to the tools-only CI job I think.

-- 
Tom
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