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

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Message-ID: <aRTs3ZouoL1CGHst@kernel.org>
Date: Wed, 12 Nov 2025 22:23:57 +0200
From: Mike Rapoport <rppt@...nel.org>
To: Pasha Tatashin <pasha.tatashin@...een.com>
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Subject: Re: [PATCH v5 22/22] tests/liveupdate: Add in-kernel liveupdate test

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@...een.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.