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reboot: indicate whether it is a HARDWARE PROTECTION reboot or shutdown

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It currently depends on the caller, whether we attempt a hardware
protection shutdown (poweroff) or a reboot.  A follow-up commit will make
this partially user-configurable, so it's a good idea to have the
emergency message clearly state whether the kernel is going for a reboot
or a shutdown.

Link: https://lkml.kernel.org/r/20250217-hw_protection-reboot-v3-6-e1c09b090c0c@pengutronix.de
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Cc: Benson Leung <bleung@chromium.org>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Fabio Estevam <festevam@denx.de>
Cc: Guenter Roeck <groeck@chromium.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Lukasz Luba <lukasz.luba@arm.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Matteo Croce <teknoraver@meta.com>
Cc: Matti Vaittinen <mazziesaccount@gmail.com>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Rob Herring (Arm) <robh@kernel.org>
Cc: Rui Zhang <rui.zhang@intel.com>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: "Serge E. Hallyn" <serge@hallyn.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Ahmad Fatoum
2025-02-17 21:39:46 +01:00
committed by Andrew Morton
parent 81cab0f94a
commit 96201a8a98
1 changed files with 2 additions and 1 deletions
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3
kernel/reboot.c
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@@ -1027,7 +1027,8 @@ void __hw_protection_trigger(const char *reason, int ms_until_forced,
{
static atomic_t allow_proceed = ATOMIC_INIT(1);
pr_emerg("HARDWARE PROTECTION shutdown (%s)\n", reason);
pr_emerg("HARDWARE PROTECTION %s (%s)\n",
hw_protection_action_str(action), reason);
/* Shutdown should be initiated only once. */
if (!atomic_dec_and_test(&allow_proceed))