linux-kernel - Re: [PATCH v6 1/2] watchdog: move arm64 watchdog

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Message-ID: <aV7WxLVlMzD910Dg@willie-the-truck>
Date: Wed, 7 Jan 2026 21:57:24 +0000
From: Will Deacon <will@...nel.org>
To: Yunhui Cui <cuiyunhui@...edance.com>
Cc: akpm@...ux-foundation.org, alex@...ti.fr, anup@...infault.org,
	aou@...s.berkeley.edu, atish.patra@...ux.dev,
	catalin.marinas@....com, dianders@...omium.org,
	johannes@...solutions.net, lihuafei1@...wei.com,
	mark.rutland@....com, masahiroy@...nel.org, maz@...nel.org,
	mingo@...nel.org, nicolas.schier@...ux.dev, palmer@...belt.com,
	paul.walmsley@...ive.com, suzuki.poulose@....com,
	thorsten.blum@...ux.dev, wangjinchao600@...il.com,
	yangyicong@...ilicon.com, zhanjie9@...ilicon.com,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-perf-users@...r.kernel.org, linux-riscv@...ts.infradead.org
Subject: Re: [PATCH v6 1/2] watchdog: move arm64 watchdog_hld into common code

On Fri, Nov 14, 2025 at 11:32:42AM +0800, Yunhui Cui wrote:
> Move the contents of arch/arm64/watchdog_hld.c to kernel/watchdog_perf.c
> to create a generic implementation that can be reused by other arch,
> such as RISC-V.
> 
> Signed-off-by: Yunhui Cui <cuiyunhui@...edance.com>
> Reviewed-by: Douglas Anderson <dianders@...omium.org>
> ---
>  arch/arm64/Kconfig               |  1 +
>  arch/arm64/kernel/Makefile       |  1 -
>  arch/arm64/kernel/watchdog_hld.c | 94 --------------------------------
>  drivers/perf/arm_pmu.c           | 10 +++-
>  include/linux/perf/arm_pmu.h     |  2 -
>  kernel/watchdog_perf.c           | 83 ++++++++++++++++++++++++++++
>  lib/Kconfig.debug                |  8 +++
>  7 files changed, 101 insertions(+), 98 deletions(-)
>  delete mode 100644 arch/arm64/kernel/watchdog_hld.c

Acked-by: Will Deacon <will@...nel.org>

Will