Patch "parisc: Allow to reboot machine after system halt" has been added to the 5.15-stable tree

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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



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