--- zzzz-none-000/linux-3.10.107/init/calibrate.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/init/calibrate.c	2021-02-04 17:41:59.000000000 +0000
@@ -31,7 +31,7 @@
 #define DELAY_CALIBRATION_TICKS			((HZ < 100) ? 1 : (HZ/100))
 #define MAX_DIRECT_CALIBRATION_RETRIES		5
 
-static unsigned long __cpuinit calibrate_delay_direct(void)
+static unsigned long calibrate_delay_direct(void)
 {
 	unsigned long pre_start, start, post_start;
 	unsigned long pre_end, end, post_end;
@@ -166,7 +166,10 @@
 	return 0;
 }
 #else
-static unsigned long __cpuinit calibrate_delay_direct(void) {return 0;}
+static unsigned long calibrate_delay_direct(void)
+{
+	return 0;
+}
 #endif
 
 /*
@@ -180,7 +183,7 @@
  */
 #define LPS_PREC 8
 
-static unsigned long __cpuinit calibrate_delay_converge(void)
+static unsigned long calibrate_delay_converge(void)
 {
 	/* First stage - slowly accelerate to find initial bounds */
 	unsigned long lpj, lpj_base, ticks, loopadd, loopadd_base, chop_limit;
@@ -254,12 +257,21 @@
  * Architectures should override this function if a faster calibration
  * method is available.
  */
-unsigned long __attribute__((weak)) __cpuinit calibrate_delay_is_known(void)
+unsigned long __attribute__((weak)) calibrate_delay_is_known(void)
 {
 	return 0;
 }
 
-void __cpuinit calibrate_delay(void)
+/*
+ * Indicate the cpu delay calibration is done. This can be used by
+ * architectures to stop accepting delay timer registrations after this point.
+ */
+
+void __attribute__((weak)) calibration_delay_done(void)
+{
+}
+
+void calibrate_delay(void)
 {
 	unsigned long lpj;
 	static bool printed;
@@ -298,4 +310,6 @@
 
 	loops_per_jiffy = lpj;
 	printed = true;
+
+	calibration_delay_done();
 }