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Message-ID: <e0b38120-8b09-4695-974c-f3c3ef226f22@redhat.com>
Date: Fri, 1 Dec 2023 14:49:03 +1100
From: Gavin Shan <gshan@...hat.com>
To: "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>,
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,
linux-riscv@...ts.infradead.org, kvmarm@...ts.linux.dev,
x86@...nel.org, linux-csky@...r.kernel.org,
linux-doc@...r.kernel.org, linux-ia64@...r.kernel.org,
linux-parisc@...r.kernel.org
Cc: Salil Mehta <salil.mehta@...wei.com>,
Jean-Philippe Brucker <jean-philippe@...aro.org>,
jianyong.wu@....com, justin.he@....com,
James Morse <james.morse@....com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
"Rafael J. Wysocki" <rafael@...nel.org>,
Paul Walmsley <paul.walmsley@...ive.com>,
Palmer Dabbelt <palmer@...belt.com>,
Albert Ou <aou@...s.berkeley.edu>
Subject: Re: [PATCH 11/21] drivers: base: Print a warning instead of panic()
when register_cpu() fails
On 11/22/23 00:44, Russell King (Oracle) wrote:
> From: James Morse <james.morse@....com>
>
> loongarch, mips, parisc, riscv and sh all print a warning if
> register_cpu() returns an error. Architectures that use
> GENERIC_CPU_DEVICES call panic() instead.
>
> Errors in this path indicate something is wrong with the firmware
> description of the platform, but the kernel is able to keep running.
>
> Downgrade this to a warning to make it easier to debug this issue.
>
> This will allow architectures that switching over to GENERIC_CPU_DEVICES
> to drop their warning, but keep the existing behaviour.
>
> Signed-off-by: James Morse <james.morse@....com>
> Reviewed-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>
> Reviewed-by: Shaoqin Huang <shahuang@...hat.com>
> Signed-off-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>
> ---
> drivers/base/cpu.c | 7 ++++---
> 1 file changed, 4 insertions(+), 3 deletions(-)
>
Reviewed-by: Gavin Shan <gshan@...hat.com>
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