From d5a6be9e565c022a9b0d255e0e0e36149c77a272 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Tue, 14 Jul 2015 14:26:34 +0200
Subject: [PATCH 109/158] panic: skip get_random_bytes for RT_FULL in
 init_oops_id

Disable on -RT. If this is invoked from irq-context we will have problems
to acquire the sleeping lock.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 kernel/panic.c |    2 ++
 1 file changed, 2 insertions(+)

Index: linux-5.15/kernel/panic.c
===================================================================
--- linux-5.15.orig/kernel/panic.c
+++ linux-5.15/kernel/panic.c
@@ -545,9 +545,11 @@ static u64 oops_id;
 
 static int init_oops_id(void)
 {
+#ifndef CONFIG_PREEMPT_RT
 	if (!oops_id)
 		get_random_bytes(&oops_id, sizeof(oops_id));
 	else
+#endif
 		oops_id++;
 
 	return 0;