Re: [PATCH 2/2] kunit: tool: add --kconfig_add to allow easily tweaking kunitconfigs

[Brendan Higgins]

On Fri, Nov 5, 2021 at 9:31 PM 'Daniel Latypov' via KUnit Development
<kunit-dev@xxxxxxxxxxxxxxxx> wrote:
>
> E.g. run tests but with KASAN
> $ ./tools/testing/kunit/kunit.py run --arch=x86_64 --kconfig_add=CONFIG_KASAN=y
>
> This also works with --kunitconfig
> $ ./tools/testing/kunit/kunit.py run --arch=x86_64 --kunitconfig=fs/ext4 --kconfig_add=CONFIG_KASAN=y
>
> This flag is inspired by TuxMake's --kconfig-add, see
> https://gitlab.com/Linaro/tuxmake#examples.
>
> Our version just uses "_" as the delimiter for consistency with
> pre-existing flags like --build_dir, --make_options, --kernel_args, etc.
>
> Note: this does make it easier to run into a pre-existing edge case:
> $ ./tools/testing/kunit/kunit.py run --arch=x86_64 --kconfig_add=CONFIG_KASAN=y
> $ ./tools/testing/kunit/kunit.py run --arch=x86_64
> This second invocation ^ still has KASAN enabled!
>
> kunit.py won't call olddefconfig if our current .config is already a
> superset of the provided kunitconfig.
>
> Signed-off-by: Daniel Latypov <dlatypov@xxxxxxxxxx>

Reviewed-by: Brendan Higgins <brendanhiggins@xxxxxxxxxx>