Re: [PATCH v5 22/22] tests/liveupdate: Add in-kernel liveupdate test

Mike Rapoport
2025-11-12T20:24:23Z

On Fri, Nov 07, 2025 at 04:03:20PM -0500, Pasha Tatashin wrote:
> Introduce an in-kernel test module to validate the core logic of the
> Live Update Orchestrator's File-Lifecycle-Bound feature. This
> provides a low-level, controlled environment to test FLB registration
> and callback invocation without requiring userspace interaction or
> actual kexec reboots.
>
> The test is enabled by the CONFIG_LIVEUPDATE_TEST Kconfig option.
>
> Signed-off-by: Pasha Tatashin <pasha.tatashin@soleen.com>
> ---
> kernel/liveupdate/luo_file.c | 2 +
> kernel/liveupdate/luo_internal.h | 8 ++
> lib/Kconfig.debug | 23 ++++++
> lib/tests/Makefile | 1 +
> lib/tests/liveupdate.c | 130 +++++++++++++++++++++++++++++++
> 5 files changed, 164 insertions(+)
> create mode 100644 lib/tests/liveupdate.c
>
> diff --git a/kernel/liveupdate/luo_file.c b/kernel/liveupdate/luo_file.c
> index 713069b96278..4c0a75918f3d 100644
> --- a/kernel/liveupdate/luo_file.c
> +++ b/kernel/liveupdate/luo_file.c
> @@ -829,6 +829,8 @@ int liveupdate_register_file_handler(struct liveupdate_file_handler *fh)
> INIT_LIST_HEAD(&fh->flb_list);
> list_add_tail(&fh->list, &luo_file_handler_list);
>
> + liveupdate_test_register(fh);
> +

Do it mean that every flb user will be added here?

> return 0;
> }
>

--
Sincerely yours,
Mike.