From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
To: Thomas Gleixner <tglx@linutronix.de>,
Peter Zijlstra <peterz@infradead.org>, <linux-pm@vger.kernel.org>,
<loongarch@lists.linux.dev>, <linux-acpi@vger.kernel.org>,
<linux-arch@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>, <kvmarm@lists.linux.dev>,
<x86@kernel.org>, Russell King <linux@armlinux.org.uk>,
"Rafael J . Wysocki" <rafael@kernel.org>,
Miguel Luis <miguel.luis@oracle.com>,
James Morse <james.morse@arm.com>,
Salil Mehta <salil.mehta@huawei.com>,
Jean-Philippe Brucker <jean-philippe@linaro.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>, Marc Zyngier <maz@kernel.org>,
Hanjun Guo <guohanjun@huawei.com>
Cc: Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>, <linuxarm@huawei.com>,
<justin.he@arm.com>, <jianyong.wu@arm.com>,
Lorenzo Pieralisi <lpieralisi@kernel.org>,
Sudeep Holla <sudeep.holla@arm.com>
Subject: [PATCH v8 02/16] cpu: Do not warn on arch_register_cpu() returning -EPROBE_DEFER
Date: Fri, 26 Apr 2024 14:51:12 +0100 [thread overview]
Message-ID: <20240426135126.12802-3-Jonathan.Cameron@huawei.com> (raw)
In-Reply-To: <20240426135126.12802-1-Jonathan.Cameron@huawei.com>
For arm64 the CPU registration cannot complete until the ACPI
interpreter us up and running so in those cases the arch specific
arch_register_cpu() will return -EPROBE_DEFER at this stage and the
registration will be attempted later.
Suggested-by: Rafael J. Wysocki <rafael@kernel.org>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Reviewed-by: Hanjun Guo <guohanjun@huawei.com>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Tested-by: Miguel Luis <miguel.luis@oracle.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---
v8: No change
---
drivers/base/cpu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index 56fba44ba391..7b83e9c87d7c 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -558,7 +558,7 @@ static void __init cpu_dev_register_generic(void)
for_each_present_cpu(i) {
ret = arch_register_cpu(i);
- if (ret)
+ if (ret && ret != -EPROBE_DEFER)
pr_warn("register_cpu %d failed (%d)\n", i, ret);
}
}
--
2.39.2
next prev parent reply other threads:[~2024-04-26 13:52 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-26 13:51 [PATCH v8 00/16] ACPI/arm64: add support for virtual cpu hotplug Jonathan Cameron
2024-04-26 13:51 ` [PATCH v8 01/16] ACPI: processor: Simplify initial onlining to use same path for cold and hotplug Jonathan Cameron
2024-04-26 16:05 ` Miguel Luis
2024-04-26 17:21 ` Miguel Luis
2024-04-26 17:49 ` Jonathan Cameron
2024-04-26 17:57 ` Rafael J. Wysocki
2024-04-26 18:09 ` Jonathan Cameron
2024-04-26 13:51 ` Jonathan Cameron [this message]
2024-04-26 13:51 ` [PATCH v8 03/16] ACPI: processor: Drop duplicated check on _STA (enabled + present) Jonathan Cameron
2024-04-26 13:51 ` [PATCH v8 04/16] ACPI: processor: Move checks and availability of acpi_processor earlier Jonathan Cameron
2024-04-30 4:17 ` Gavin Shan
2024-04-30 9:28 ` Jonathan Cameron
2024-04-30 10:12 ` Rafael J. Wysocki
2024-04-30 10:13 ` Jonathan Cameron
2024-04-30 10:17 ` Rafael J. Wysocki
2024-04-30 10:45 ` Jonathan Cameron
2024-04-30 10:47 ` Rafael J. Wysocki
2024-04-30 13:42 ` Jonathan Cameron
2024-04-26 13:51 ` [PATCH v8 05/16] ACPI: processor: Add acpi_get_processor_handle() helper Jonathan Cameron
2024-04-30 4:26 ` Gavin Shan
2024-04-30 11:07 ` Jonathan Cameron
2024-04-26 13:51 ` [PATCH v8 06/16] ACPI: processor: Register deferred CPUs from acpi_processor_get_info() Jonathan Cameron
2024-04-26 13:51 ` [PATCH v8 07/16] ACPI: scan: switch to flags for acpi_scan_check_and_detach() Jonathan Cameron
2024-04-26 13:51 ` [PATCH v8 08/16] ACPI: Add post_eject to struct acpi_scan_handler for cpu hotplug Jonathan Cameron
2024-04-26 13:51 ` [PATCH v8 09/16] arm64: acpi: Move get_cpu_for_acpi_id() to a header Jonathan Cameron
2024-04-30 16:37 ` Lorenzo Pieralisi
2024-04-26 13:51 ` [PATCH v8 10/16] irqchip/gic-v3: Don't return errors from gic_acpi_match_gicc() Jonathan Cameron
2024-04-26 15:14 ` Marc Zyngier
2024-04-26 13:51 ` [PATCH v8 11/16] irqchip/gic-v3: Add support for ACPI's disabled but 'online capable' CPUs Jonathan Cameron
2024-04-26 16:26 ` Marc Zyngier
2024-04-26 18:28 ` Jonathan Cameron
2024-04-28 11:28 ` Marc Zyngier
2024-04-29 9:21 ` Jonathan Cameron
2024-04-30 12:15 ` Jonathan Cameron
2024-04-26 13:51 ` [PATCH v8 12/16] arm64: psci: Ignore DENIED CPUs Jonathan Cameron
2024-04-30 4:29 ` Gavin Shan
2024-04-26 13:51 ` [PATCH v8 13/16] arm64: arch_register_cpu() variant to check if an ACPI handle is now available Jonathan Cameron
2024-04-30 4:31 ` Gavin Shan
2024-04-26 13:51 ` [PATCH v8 14/16] arm64: Kconfig: Enable hotplug CPU on arm64 if ACPI_PROCESSOR is enabled Jonathan Cameron
2024-04-26 13:51 ` [PATCH v8 15/16] arm64: document virtual CPU hotplug's expectations Jonathan Cameron
2024-04-26 13:51 ` [PATCH v8 16/16] cpumask: Add enabled cpumask for present CPUs that can be brought online Jonathan Cameron
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