Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/trace/events/workqueue.h b/include/trace/events/workqueue.h
index 9a761bc..e172549 100644
--- a/include/trace/events/workqueue.h
+++ b/include/trace/events/workqueue.h
@@ -60,7 +60,7 @@
 		__entry->cpu		= pwq->pool->cpu;
 	),
 
-	TP_printk("work struct=%p function=%pf workqueue=%p req_cpu=%u cpu=%u",
+	TP_printk("work struct=%p function=%ps workqueue=%p req_cpu=%u cpu=%u",
 		  __entry->work, __entry->function, __entry->workqueue,
 		  __entry->req_cpu, __entry->cpu)
 );
@@ -102,7 +102,7 @@
 		__entry->function	= work->func;
 	),
 
-	TP_printk("work struct %p: function %pf", __entry->work, __entry->function)
+	TP_printk("work struct %p: function %ps", __entry->work, __entry->function)
 );
 
 /**