linux-kernel - Re: [PATCH v5 01/18] cpu: Do not warn on arch_register_cpu() returning -EPROBE

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Date: Mon, 22 Apr 2024 13:53:16 +1000
From: Gavin Shan <gshan@...hat.com>
To: Jonathan Cameron <Jonathan.Cameron@...wei.com>, linux-pm@...r.kernel.org,
 loongarch@...ts.linux.dev, linux-acpi@...r.kernel.org,
 linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, kvmarm@...ts.linux.dev,
 x86@...nel.org, Russell King <linux@...linux.org.uk>,
 "Rafael J . Wysocki" <rafael@...nel.org>,
 Miguel Luis <miguel.luis@...cle.com>, James Morse <james.morse@....com>,
 Salil Mehta <salil.mehta@...wei.com>,
 Jean-Philippe Brucker <jean-philippe@...aro.org>,
 Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>
Cc: linuxarm@...wei.com, justin.he@....com, jianyong.wu@....com
Subject: Re: [PATCH v5 01/18] cpu: Do not warn on arch_register_cpu()
 returning -EPROBE_DEFER

On 4/13/24 00:37, Jonathan Cameron wrote:
> For arm64 the CPU registration cannot complete until the ACPI intepretter
> us up and running so in those cases the arch specific
   ^^

typo: s/us/is

> arch_register_cpu() will return -EPROBE_DEFER at this stage and the
> registration will be attempted later.
> 
> Suggested-by: Rafael J. Wysocki <rafael@...nel.org>
> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
> 
> ---
> v5: New patch.
>      Note that for now no arch_register_cpu() calls return -EPROBE_DEFER
>      so it has no impact until the arm64 one is added later in this series.
> ---
>   drivers/base/cpu.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 

Reviewed-by: Gavin Shan <gshan@...hat.com>