This is a note to let you know that I've just added the patch titled
parisc: Allow to reboot machine after system halt
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
parisc-allow-to-reboot-machine-after-system-halt.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 2028315cf59bb899a5ac7e87dc48ecb8fac7ac24 Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@xxxxxx>
Date: Mon, 22 May 2023 22:57:30 +0200
Subject: parisc: Allow to reboot machine after system halt
From: Helge Deller <deller@xxxxxx>
commit 2028315cf59bb899a5ac7e87dc48ecb8fac7ac24 upstream.
In case a machine can't power-off itself on system shutdown,
allow the user to reboot it by pressing the RETURN key.
Cc: <stable@xxxxxxxxxxxxxxx> # v4.14+
Signed-off-by: Helge Deller <deller@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/parisc/kernel/process.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -120,13 +120,18 @@ void machine_power_off(void)
/* It seems we have no way to power the system off via
* software. The user has to press the button himself. */
- printk(KERN_EMERG "System shut down completed.\n"
- "Please power this system off now.");
+ printk("Power off or press RETURN to reboot.\n");
/* prevent soft lockup/stalled CPU messages for endless loop. */
rcu_sysrq_start();
lockup_detector_soft_poweroff();
- for (;;);
+ while (1) {
+ /* reboot if user presses RETURN key */
+ if (pdc_iodc_getc() == 13) {
+ printk("Rebooting...\n");
+ machine_restart(NULL);
+ }
+ }
}
void (*pm_power_off)(void);
Patches currently in stable-queue which might be from deller@xxxxxx are
queue-5.15/parisc-allow-to-reboot-machine-after-system-halt.patch
queue-5.15/parisc-handle-kgdb-breakpoints-only-in-kernel-context.patch
