Re: [PATCH RFC 12/22] drivers: base: Print a warning instead of panic() when register_cpu() fails

From: Gavin Shan
Date: Sun Nov 12 2023 - 23:05:07 EST


On 11/7/23 20:30, Russell King (Oracle) wrote:
From: James Morse <james.morse@xxxxxxx>

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@xxxxxxx>
Reviewed-by: Russell King (Oracle) <rmk+kernel@xxxxxxxxxxxxxxx>
Signed-off-by: Russell King (Oracle) <rmk+kernel@xxxxxxxxxxxxxxx>
---
drivers/base/cpu.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)


Reviewed-by: Gavin Shan <gshan@xxxxxxxxxx>