linux-kernel - [PATCH v8 06/27] kernel/reboot: Add stub for pm_power

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Message-Id: <20220509233235.995021-7-dmitry.osipenko@collabora.com>
Date:   Tue, 10 May 2022 02:32:14 +0300
From:   Dmitry Osipenko <dmitry.osipenko@...labora.com>
To:     Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Russell King <linux@...linux.org.uk>,
        Catalin Marinas <catalin.marinas@....com>,
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        Linus Walleij <linus.walleij@...aro.org>,
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Cc:     linux-kernel@...r.kernel.org, linux-csky@...r.kernel.org,
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Subject: [PATCH v8 06/27] kernel/reboot: Add stub for pm_power_off

Add weak stub for the global pm_power_off callback variable. This will
allow us to remove pm_power_off definitions from arch/ code and transition
to the new sys-off based API that will replace the global variable.

Signed-off-by: Dmitry Osipenko <dmitry.osipenko@...labora.com>
---
 kernel/reboot.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/kernel/reboot.c b/kernel/reboot.c
index 9afa99a32d62..eaede35f45e2 100644
--- a/kernel/reboot.c
+++ b/kernel/reboot.c
@@ -57,6 +57,12 @@ struct sys_off_handler {
 	void *list;
 };
 
+/*
+ * Temporary stub that prevents linkage failure while we're in process
+ * of removing all uses of legacy pm_power_off() around the kernel.
+ */
+void __weak (*pm_power_off)(void);
+
 /*
  * If set, this is used for preparing the system to power off.
  */
-- 
2.35.1