Merge tag 'trace-rv-v6.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull tracing fixes from Steven Rostedt:
 "A couple of fixes for Runtime Verification:

   - A bug caused a kernel panic when reading enabled_monitors was
     reported.

     Change callback functions to always use list_head iterators and by
     doing so, fix the wrong pointer that was leading to the panic.

   - The rtapp/pagefault monitor relies on the MMU to be present
     (pagefaults exist) but that was not enforced via kconfig, leading
     to potential build errors on systems without an MMU.

     Add that kconfig dependency"

* tag 'trace-rv-v6.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  rv: Make rtapp/pagefault monitor depends on CONFIG_MMU
  rv: Fully convert enabled_monitors to use list_head as iterator

Author: torvalds

kernel/trace/rv/monitors/pagefault/Kconfig

@@ -5,6 +5,7 @@ config RV_MON_PAGEFAULT
 	select RV_LTL_MONITOR
 	depends on RV_MON_RTAPP
 	depends on X86 || RISCV
+	depends on MMU
 	default y
 	select LTL_MON_EVENTS_ID
 	bool "pagefault monitor"

kernel/trace/rv/rv.c

@@ -501,31 +501,31 @@ static void *enabled_monitors_next(struct seq_file *m, void *p, loff_t *pos)
 
 	list_for_each_entry_continue(mon, &rv_monitors_list, list) {
 		if (mon->enabled)
-			return mon;
+			return &mon->list;
 	}
 
 	return NULL;
 }
 
 static void *enabled_monitors_start(struct seq_file *m, loff_t *pos)
 {
-	struct rv_monitor *mon;
+	struct list_head *head;
 	loff_t l;
 
 	mutex_lock(&rv_interface_lock);
 
 	if (list_empty(&rv_monitors_list))
 		return NULL;
 
-	mon = list_entry(&rv_monitors_list, struct rv_monitor, list);
+	head = &rv_monitors_list;
 
 	for (l = 0; l <= *pos; ) {
-		mon = enabled_monitors_next(m, mon, &l);
-		if (!mon)
+		head = enabled_monitors_next(m, head, &l);
+		if (!head)
 			break;
 	}
 
-	return mon;
+	return head;
 }
 
 /*