From: Dmitry Osipenko <digetx@gmail.com>
To: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: "Michał Mirosław" <mirq-linux@rere.qmqm.pl>,
"Thierry Reding" <thierry.reding@gmail.com>,
"Jonathan Hunter" <jonathanh@nvidia.com>,
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Subject: Re: [PATCH v4 05/25] reboot: Warn if restart handler has duplicated priority
Date: Fri, 10 Dec 2021 22:44:41 +0300 [thread overview]
Message-ID: <ad6c7d73-e7d3-4901-fd63-ef87eecd39a2@gmail.com> (raw)
In-Reply-To: <45228c88-4d51-591e-5da5-9ec468e71684@gmail.com>
10.12.2021 22:42, Dmitry Osipenko пишет:
...
>>> There is no strong requirement for priorities to be unique, the reboot.c
>>> code will work properly.
>>
>> In which case adding the WARN() is not appropriate IMV.
>>
>> Also I've looked at the existing code and at least in some cases the
>> order in which the notifiers run doesn't matter. I'm not sure what
>> the purpose of this patch is TBH.
>
> The purpose is to let developer know that driver needs to be corrected.
>
>>> The potential problem is on the user's side and the warning is intended
>>> to aid the user.
>>
>> Unless somebody has the panic_on_warn mentioned previously set and
>> really the user need not understand what the WARN() is about. IOW,
>> WARN() helps developers, not users.
>>
>>> We can make it a strong requirement, but only after converting and
>>> testing all kernel drivers.
>>
>> Right.
>>
>>> I'll consider to add patches for that.
>>
>> But can you avoid adding more patches to this series?
>
> I won't add more patches since such patches can be added only after
> completion of transition to the new API of the whole kernel.
>
Thank you for the review.
next prev parent reply other threads:[~2021-12-10 19:44 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-26 18:00 [PATCH v4 00/25] Introduce power-off+restart call chain API Dmitry Osipenko
2021-11-26 18:00 ` [PATCH v4 01/25] notifier: Remove extern annotation from function prototypes Dmitry Osipenko
2021-11-26 18:00 ` [PATCH v4 02/25] notifier: Add blocking_notifier_call_chain_is_empty() Dmitry Osipenko
2021-12-10 18:14 ` Rafael J. Wysocki
2021-12-10 18:19 ` Dmitry Osipenko
2021-11-26 18:00 ` [PATCH v4 03/25] notifier: Add atomic/blocking_notifier_has_unique_priority() Dmitry Osipenko
2021-12-10 18:19 ` Rafael J. Wysocki
2021-12-10 18:52 ` Dmitry Osipenko
2021-12-10 19:05 ` Rafael J. Wysocki
2021-12-10 19:33 ` Dmitry Osipenko
2021-12-10 20:16 ` Dmitry Osipenko
2021-11-26 18:00 ` [PATCH v4 04/25] reboot: Correct typo in a comment Dmitry Osipenko
2021-12-10 18:21 ` Rafael J. Wysocki
2021-11-26 18:00 ` [PATCH v4 05/25] reboot: Warn if restart handler has duplicated priority Dmitry Osipenko
2021-11-28 0:28 ` Michał Mirosław
2021-11-28 21:06 ` Dmitry Osipenko
2021-11-29 0:26 ` Michał Mirosław
2021-11-29 11:34 ` Dmitry Osipenko
2021-12-10 18:27 ` Rafael J. Wysocki
2021-12-10 19:04 ` Dmitry Osipenko
2021-12-10 19:14 ` Rafael J. Wysocki
2021-12-10 19:42 ` Dmitry Osipenko
2021-12-10 19:44 ` Dmitry Osipenko [this message]
2021-12-10 19:49 ` Dmitry Osipenko
2021-12-13 9:23 ` Geert Uytterhoeven
2021-11-26 18:00 ` [PATCH v4 06/25] reboot: Warn if unregister_restart_handler() fails Dmitry Osipenko
2021-12-10 18:32 ` Rafael J. Wysocki
2021-12-10 18:54 ` Dmitry Osipenko
2021-12-10 19:08 ` Rafael J. Wysocki
2021-12-10 19:38 ` Dmitry Osipenko
2021-11-26 18:00 ` [PATCH v4 07/25] reboot: Remove extern annotation from function prototypes Dmitry Osipenko
2021-12-10 18:09 ` Rafael J. Wysocki
2021-12-10 18:15 ` Dmitry Osipenko
2021-12-10 18:35 ` Rafael J. Wysocki
2021-12-10 18:56 ` Dmitry Osipenko
2021-11-26 18:00 ` [PATCH v4 08/25] kernel: Add combined power-off+restart handler call chain API Dmitry Osipenko
2021-11-28 0:43 ` Michał Mirosław
2021-11-28 21:04 ` Dmitry Osipenko
2021-11-28 21:17 ` Michał Mirosław
2021-11-28 21:53 ` Dmitry Osipenko
2021-11-29 0:36 ` Michał Mirosław
2021-11-29 11:52 ` Dmitry Osipenko
2021-11-26 18:00 ` [PATCH v4 09/25] ARM: Use do_kernel_power_off() Dmitry Osipenko
2021-11-26 18:00 ` [PATCH v4 10/25] csky: " Dmitry Osipenko
2021-11-26 18:00 ` [PATCH v4 11/25] riscv: " Dmitry Osipenko
2021-11-26 18:00 ` [PATCH v4 12/25] arm64: " Dmitry Osipenko
2021-11-26 18:00 ` [PATCH v4 13/25] parisc: " Dmitry Osipenko
2021-11-26 18:00 ` [PATCH v4 14/25] xen/x86: " Dmitry Osipenko
2021-11-26 18:00 ` [PATCH v4 15/25] powerpc: " Dmitry Osipenko
2021-11-26 18:00 ` [PATCH v4 16/25] m68k: Switch to new sys-off handler API Dmitry Osipenko
2021-11-26 18:00 ` [PATCH v4 17/25] sh: Use do_kernel_power_off() Dmitry Osipenko
2021-11-26 18:00 ` [PATCH v4 18/25] x86: " Dmitry Osipenko
2021-11-28 1:15 ` Michał Mirosław
2021-11-28 21:06 ` Dmitry Osipenko
2021-11-26 18:00 ` [PATCH v4 19/25] ia64: " Dmitry Osipenko
2021-11-26 18:00 ` [PATCH v4 20/25] mips: " Dmitry Osipenko
2021-11-26 18:00 ` [PATCH v4 21/25] nds32: " Dmitry Osipenko
2021-11-26 18:00 ` [PATCH v4 22/25] memory: emif: Use kernel_can_power_off() Dmitry Osipenko
2021-11-28 1:23 ` Michał Mirosław
2021-11-28 21:04 ` Dmitry Osipenko
2021-11-26 18:00 ` [PATCH v4 23/25] ACPI: power: Switch to sys-off handler API Dmitry Osipenko
2021-11-26 18:01 ` [PATCH v4 24/25] regulator: pfuze100: Use devm_register_sys_off_handler() Dmitry Osipenko
2021-11-26 18:01 ` [PATCH v4 25/25] reboot: Remove pm_power_off_prepare() Dmitry Osipenko
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