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From: Markus Armbruster <armbru@redhat.com>
To: "Philippe Mathieu-Daudé" <philmd@linaro.org>
Cc: Gavin Shan <gshan@redhat.com>,
	 qemu-arm@nongnu.org, qemu-devel@nongnu.org,
	 jonathan.cameron@huawei.com, mchehab+huawei@kernel.org,
	 gengdongjiu1@gmail.com,  mst@redhat.com, imammedo@redhat.com,
	 anisinha@redhat.com,  peter.maydell@linaro.org,
	pbonzini@redhat.com,  shan.gavin@gmail.com
Subject: Re: [PATCH v3 6/8] acpi/ghes: Use error_abort in acpi_ghes_memory_errors()
Date: Tue, 11 Nov 2025 06:08:40 +0100	[thread overview]
Message-ID: <87v7jhgnqf.fsf@pond.sub.org> (raw)
In-Reply-To: <2c3b388e-e002-466a-9b03-cafefcfc9d19@linaro.org> ("Philippe Mathieu-Daudé"'s message of "Mon, 10 Nov 2025 15:54:07 +0100")

Philippe Mathieu-Daudé <philmd@linaro.org> writes:

> On 5/11/25 12:44, Gavin Shan wrote:
>> Use error_abort in acpi_ghes_memory_errors() so that the caller needn't
>> explicitly call abort() on errors. With this change, its return value
>> isn't needed any more.
>> Suggested-by: Igor Mammedov <imammedo@redhat.com>
>> Signed-off-by: Gavin Shan <gshan@redhat.com>
>> ---
>>   hw/acpi/ghes-stub.c    |  6 +++---
>>   hw/acpi/ghes.c         | 15 ++++-----------
>>   include/hw/acpi/ghes.h |  5 +++--
>>   target/arm/kvm.c       | 10 +++-------
>>   4 files changed, 13 insertions(+), 23 deletions(-)
>
>
>> diff --git a/include/hw/acpi/ghes.h b/include/hw/acpi/ghes.h
>> index f73908985d..35c7bbbb01 100644
>> --- a/include/hw/acpi/ghes.h
>> +++ b/include/hw/acpi/ghes.h
>> @@ -98,8 +98,9 @@ void acpi_build_hest(AcpiGhesState *ags, GArray *table_data,
>>                        const char *oem_id, const char *oem_table_id);
>>   void acpi_ghes_add_fw_cfg(AcpiGhesState *vms, FWCfgState *s,
>>                             GArray *hardware_errors);
>> -int acpi_ghes_memory_errors(AcpiGhesState *ags, uint16_t source_id,
>> -                            uint64_t *addresses, uint32_t num_of_addresses);
>> +void acpi_ghes_memory_errors(AcpiGhesState *ags, uint16_t source_id,
>> +                             uint64_t *addresses, uint32_t num_of_addresses,
>> +                             Error **errp);
>
> This is an anti-pattern w.r.t. commit e3fe3988d78 ("error: Document
> Error API usage rules"), because it can be called with an errp distinct
> of &error_abort.
>
> If you really want to abort(), remove the errp argument, directly call
> abort() and rename as acpi_ghes_memory_abort_on_errors().

Since there are no callers that do not want abort() on error, this is
fine.

I think your patch is also fine in princple, but a few details are
wrong.  I'll point them out inline.

[...]



  parent reply	other threads:[~2025-11-11  5:09 UTC|newest]

Thread overview: 67+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-11-05 11:44 [PATCH v3 0/8] target/arm/kvm: Improve memory error handling Gavin Shan
2025-11-05 11:44 ` [PATCH v3 1/8] tests/qtest/bios-tables-test: Prepare for changes in the HEST table Gavin Shan
2025-11-05 14:16   ` Jonathan Cameron via
2025-11-05 14:16     ` Jonathan Cameron via
2025-11-05 11:44 ` [PATCH v3 2/8] acpi/ghes: Increase GHES raw data maximal length to 4KiB Gavin Shan
2025-11-05 14:16   ` Jonathan Cameron via
2025-11-05 14:16     ` Jonathan Cameron via
2025-11-10 14:11   ` Igor Mammedov
2025-11-11  4:05     ` Gavin Shan
2025-11-12 12:32       ` Igor Mammedov
2025-11-12 17:41         ` Gavin Shan
2025-11-05 11:44 ` [PATCH v3 3/8] tests/qtest/bios-tables-test: Update HEST table Gavin Shan
2025-11-05 14:17   ` Jonathan Cameron via
2025-11-05 14:17     ` Jonathan Cameron via
2025-11-05 11:44 ` [PATCH v3 4/8] acpi/ghes: Extend acpi_ghes_memory_errors() to support multiple CPERs Gavin Shan
2025-11-05 14:14   ` Jonathan Cameron via
2025-11-05 14:14     ` Jonathan Cameron via
2025-11-06  3:15     ` Gavin Shan
2025-11-10 14:49       ` Igor Mammedov
2025-11-11  4:08         ` Gavin Shan
2025-11-11 10:07           ` Jonathan Cameron via
2025-11-11 10:07             ` Jonathan Cameron via
2025-11-11 10:55             ` Gavin Shan
2025-11-11 11:55               ` Jonathan Cameron via
2025-11-11 11:55                 ` Jonathan Cameron via
2025-11-11 12:19                 ` Gavin Shan
2025-11-11 13:12                   ` Jonathan Cameron via
2025-11-11 13:12                     ` Jonathan Cameron via
2025-11-10 14:38   ` Igor Mammedov
2025-11-11  4:40     ` Gavin Shan
2025-11-12 13:12       ` Igor Mammedov
2025-11-12 17:36         ` Gavin Shan
2025-11-10 14:43   ` Philippe Mathieu-Daudé
2025-11-10 23:38     ` Gavin Shan
2025-11-11  3:40       ` Gavin Shan
2025-11-10 14:48   ` Philippe Mathieu-Daudé
2025-11-11  3:44     ` Gavin Shan
2025-11-05 11:44 ` [PATCH v3 5/8] acpi/ghes: Bail early on error from get_ghes_source_offsets() Gavin Shan
2025-11-05 14:17   ` Jonathan Cameron via
2025-11-05 14:17     ` Jonathan Cameron via
2025-11-10 14:50   ` Philippe Mathieu-Daudé
2025-11-11  3:48     ` Gavin Shan
2025-11-10 14:51   ` Igor Mammedov
2025-11-05 11:44 ` [PATCH v3 6/8] acpi/ghes: Use error_abort in acpi_ghes_memory_errors() Gavin Shan
2025-11-05 14:18   ` Jonathan Cameron via
2025-11-05 14:18     ` Jonathan Cameron via
2025-11-10 14:53   ` Igor Mammedov
2025-11-10 14:54   ` Philippe Mathieu-Daudé
2025-11-11  3:58     ` Gavin Shan
2025-11-12 12:49       ` Igor Mammedov
2025-11-12 17:38         ` Gavin Shan
2025-11-11  5:08     ` Markus Armbruster [this message]
2025-11-11  5:25   ` Markus Armbruster
2025-11-11  6:02     ` Gavin Shan
2025-11-11  7:31       ` Markus Armbruster
2025-11-05 11:44 ` [PATCH v3 7/8] kvm/arm/kvm: Introduce helper push_ghes_memory_errors() Gavin Shan
2025-11-05 14:19   ` Jonathan Cameron via
2025-11-05 14:19     ` Jonathan Cameron via
2025-11-10 14:56   ` Igor Mammedov
2025-11-11  4:09     ` Gavin Shan
2025-11-05 11:44 ` [PATCH v3 8/8] target/arm/kvm: Support multiple memory CPERs injection Gavin Shan
2025-11-05 14:37   ` Jonathan Cameron via
2025-11-05 14:37     ` Jonathan Cameron via
2025-11-06  3:26     ` Gavin Shan
2025-11-11 10:12       ` Jonathan Cameron
2025-11-11 10:12         ` Jonathan Cameron via
2025-11-11 10:12         ` Jonathan Cameron via

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