Re: [PATCH] clocksource/drivers/exynos_mct: Use percpu interrupts only on ARM64

On 27/08/2025 12:26, Marek Szyprowski wrote:

For some unknown reasons forcing percpu interrupts for local timers
breaks CPU hotplug for 'little' cores on legacy ARM 32bit Exynos based
machines (for example Exynos5422-based Odroid-XU3/XU4 boards). Use percpu
flag only when driver is compiled for newer ARM64 architecture.

Fixes: f3cec54ee3bf ("clocksource/drivers/exynos_mct: Set local timer interrupts as percpu")

I am pretty sure the patch above was not tested on arm32, thus this
workaround seems reasonable.

Reviewed-by: Krzysztof Kozlowski <redacted>



Best regards,
Krzysztof