From: Thomas Gleixner <tglx@kernel.org>
To: Mark Rutland <mark.rutland@arm.com>,
Sneh Mankad <sneh.mankad@oss.qualcomm.com>
Cc: Daniel Lezcano <daniel.lezcano@oss.qualcomm.com>,
Peter Zijlstra <peterz@infradead.org>,
"Rafael J. Wysocki" <rafael@kernel.org>,
Pavel Machek <pavel@kernel.org>, Len Brown <lenb@kernel.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2] arm64: Disallow disabling boot CPU based on config
Date: Fri, 03 Jul 2026 23:09:34 +0200 [thread overview]
Message-ID: <878q7rlr01.ffs@fw13> (raw)
In-Reply-To: <akfHIH_dZrr5bosu@J2N7QTR9R3>
On Fri, Jul 03 2026 at 15:28, Mark Rutland wrote:
> On Fri, Jul 03, 2026 at 04:50:02PM +0530, Sneh Mankad wrote:
>> + depends on HOTPLUG_CPU
>> + depends on SUSPEND
>> + help
>> + Disallow boot CPU (CPU0) offline when the suspend_ops->enter()
>> + has to be executed by boot CPU.
>
> As above, I don't think this makse sense as a config option.
Correct. That's pointless as it can be determined at boot time either
through firmware (ACPI/DT) or if that's not possible for whatever
reasons then a runtime detection quirk which depends on that particular
platform.
next prev parent reply other threads:[~2026-07-03 21:09 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-03 11:20 [PATCH v2] arm64: Disallow disabling boot CPU based on config Sneh Mankad
2026-07-03 14:28 ` Mark Rutland
2026-07-03 21:09 ` Thomas Gleixner [this message]
2026-07-03 15:51 ` Sudeep Holla
2026-07-04 6:43 ` Daniel Lezcano
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