--- zzzz-none-000/linux-4.1.38/include/linux/printk.h	2017-01-18 18:48:06.000000000 +0000
+++ bcm63-7582-715/linux-4.1.38/include/linux/printk.h	2020-11-25 10:06:48.000000000 +0000
@@ -107,7 +107,7 @@
  * gcc's format and side-effect checking.
  */
 static inline __printf(1, 2)
-int no_printk(const char *fmt, ...)
+int no_printk(const char *fmt __maybe_unused, ...)
 {
 	return 0;
 }
@@ -139,6 +139,17 @@
 asmlinkage __printf(1, 2) __cold
 int printk(const char *fmt, ...);
 
+asmlinkage __printf(1, 0)
+int vprintk(const char *fmt, va_list args);
+
+#ifdef CONFIG_AVM_ENHANCED
+asmlinkage __printf(1, 2) __cold
+int printk_linux(const char *fmt, ...);
+
+extern void vprintk_restore(void); /* depreciated: use printk_avm_console_bend() instead */
+extern int printk_avm_console_bend(unsigned int activate);
+#endif
+
 /*
  * Special printk facility for scheduler/timekeeping use only, _DO_NOT_USE_ !
  */
@@ -183,6 +194,30 @@
 {
 	return 0;
 }
+#ifdef CONFIG_AVM_ENHANCED
+static inline __printf(1, 2) __cold
+int printk_linux(const char *fmt __maybe_unused, ...)
+{
+	return 0;
+}
+static inline int printk_avm_console_bend(unsigned int activate __maybe_unused) {
+	return 0;
+}
+#endif
+
+static inline __printf(5, 0) __cold
+int vprintk_emit(int facility __maybe_unused, int level __maybe_unused,
+		 const char *dict __maybe_unused, size_t dictlen __maybe_unused,
+		 const char *fmt __maybe_unused, va_list args __maybe_unused)
+{
+	return 0;
+}
+
+static inline __printf(1, 2) __cold
+int printk_sched(const char *s __maybe_unused, ...)
+{
+	return 0;
+}
 static inline int printk_ratelimit(void)
 {
 	return 0;
@@ -228,8 +263,26 @@
 }
 #endif
 
+#ifdef CONFIG_AVM_ENHANCED
+static __printf(1, 2)
+int _printk(const char *fmt, ...) __attribute__((weakref("printk")))
+__attribute__((deprecated("Neuer Name 'printk()'")));
+
+static __printf(1, 2)
+int __printk(const char *fmt, ...) __attribute__((weakref("printk_linux")))
+__attribute__((deprecated("Neuer Name 'printk_linux()'")));
+#endif
+
 extern asmlinkage void dump_stack(void) __cold;
 
+#if defined(CONFIG_BCM_KF_EXTRA_DEBUG)
+/* extra ratelimit state for bcm_printk() and blog_dump() debugs. */
+extern int __bcm_printk_ratelimit(const char *func);
+#define bcm_printk_ratelimit() __bcm_printk_ratelimit(__func__)
+
+extern int bcm_printk(const char *fmt, ...);
+#endif
+
 #ifndef pr_fmt
 #define pr_fmt(fmt) fmt
 #endif