Re: [OE-core] [PATCH] kernel-fit-image.bbclass: Fix operation with KERNEL_DTBVENDORED = "1"

["Mathieu Dubois-Briand" <mathieu.dubois-briand@bootlin.com>]

On Tue Jun 16, 2026 at 11:49 PM CEST, Marek Vasut via lists.openembedded.org wrote:
> In the case KERNEL_DTBVENDORED = "1" , the fitImage configuration
> subnode names used to contain the vendor prefix in OE 5.0 , e.g.:
> "
> $ mkimage  -l fitImage
> ...
>  Configuration 0 (conf-freescale_imx8mn-board.dtb)
>                        ^^^^^^^^^^
> ...
> "
>
> With OE 6.0 this is no longer the case and KERNEL_DTBVENDORED = "1"
> and KERNEL_DTBVENDORED = "0" behave exactly the same way:
> "
> $ mkimage  -l fitImage
> ...
>  Configuration 0 (conf-imx8mn-board.dtb)
> ...
> "
>
> Users depend on the correct configuration subnode names as those
> are used in the U-Boot "bootm" command when booting fitImages.
>
> Fix this by converting each entry in the KERNEL_DEVICETREE list
> into the configuration subnode name by replacing all of its path
> separators with underscores.
>
> Fixes: 05d0c7342d76 ("kernel-fit-image.bbclass: add a new FIT image implementation")
> Signed-off-by: Marek Vasut <marek.vasut@mailbox.org>
> ---
> Cc: Adrian Freihofer <adrian.freihofer@siemens.com>
> Cc: Richard Purdie <richard.purdie@linuxfoundation.org>
> Cc: Yoann Congal <yoann.congal@smile.fr>
> ---
> NOTE: This should ideally be added into OE 6.0 too
> ---

Hi Marek,

Thanks for your patch.

It looks like this is breaking the
fitimage.KernelFitImageRecipeTests.test_fit_image_ext_dtb_dtbo selftest:

2026-06-17 18:15:46,751 - oe-selftest - INFO - fitimage.KernelFitImageRecipeTests.test_fit_image_ext_dtb_dtbo (subunit.RemotedTestCase)
2026-06-17 18:15:46,752 - oe-selftest - INFO -  ... FAIL
...
2026-06-17 18:15:46,752 - oe-selftest - INFO - 9: 36/79 281/688 (28.27s) (0 failed) (fitimage.KernelFitImageRecipeTests.test_fit_image_ext_dtb_dtbo)
2026-06-17 18:15:46,752 - oe-selftest - INFO - testtools.testresult.real._StringException: Traceback (most recent call last):
  File "/srv/pokybuild/yocto-worker/oe-selftest-debian/build/layers/openembedded-core/meta/lib/oeqa/selftest/cases/fitimage.py", line 1259, in test_fit_image_ext_dtb_dtbo
    self._test_fitimage(bb_vars)
  File "/srv/pokybuild/yocto-worker/oe-selftest-debian/build/layers/openembedded-core/meta/lib/oeqa/selftest/cases/fitimage.py", line 646, in _test_fitimage
    self._check_its_file(bb_vars, fitimage_its_path)
  File "/srv/pokybuild/yocto-worker/oe-selftest-debian/build/layers/openembedded-core/meta/lib/oeqa/selftest/cases/fitimage.py", line 566, in _check_its_file
    self.assertTrue(found_all,
  File "/usr/lib/python3.12/unittest/case.py", line 727, in assertTrue
    raise self.failureException(msg)
AssertionError: False is not true : Fields in Image Tree Source File /srv/pokybuild/yocto-worker/oe-selftest-debian/build/build-st-2472397/tmp/deploy/images/qemux86-64/fit-image.its did not match, error in finding fdt = "fdt-test-overlay.dtbo";

https://autobuilder.yoctoproject.org/valkyrie/#/builders/35/builds/4062
https://autobuilder.yoctoproject.org/valkyrie/#/builders/23/builds/4140
https://autobuilder.yoctoproject.org/valkyrie/#/builders/48/builds/3912

Can you have a look at the issue?

Thanks,
Mathieu

-- 
Mathieu Dubois-Briand, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com