Re: [RFC PATCH 1/3] efi-rtc: Remove wakeup functionality

From: Demi Marie Obenour <demiobenour@gmail.com>
To: Ard Biesheuvel <ardb+git@google.com>, linux-kernel@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org,
	Ard Biesheuvel <ardb@kernel.org>,
	Heinrich Schuchardt <heinrich.schuchardt@canonical.com>,
	Feng Tang <feng.tang@linux.alibaba.com>,
	Alexandre Belloni <alexandre.belloni@bootlin.com>,
	Juergen Gross <jgross@suse.com>,
	Stefano Stabellini <sstabellini@kernel.org>,
	Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>,
	Sunil V L <sunilvl@ventanamicro.com>,
	Bibo Mao <maobibo@loongson.cn>,
	linux-rtc@vger.kernel.org, linux-efi@vger.kernel.org,
	xen-devel@lists.xenproject.org, x86@kernel.org,
	linux-riscv@lists.infradead.org, loongarch@lists.linux.dev
Subject: Re: [RFC PATCH 1/3] efi-rtc: Remove wakeup functionality
Date: Mon, 14 Jul 2025 02:13:22 -0400	[thread overview]
Message-ID: <dade7d17-d45d-455e-a43c-01e9ea95c3b4@gmail.com> (raw)
In-Reply-To: <20250714060843.4029171-6-ardb+git@google.com>


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On 7/14/25 02:08, Ard Biesheuvel wrote:
> From: Ard Biesheuvel <ardb@kernel.org>
> 
> The EFI rtc driver is used by non-x86 architectures only, and exposes
> the get/set wakeup time functionality provided by the underlying
> platform. This is usually broken on most platforms, and not widely used
> to begin with [if at all], so let's just remove it.
systemd uses the underlying functionality: a timer can wake the system up.
I have no idea if that is implemented in terms of this function, though.
-- 
Sincerely,
Demi Marie Obenour (she/her/hers)

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