--- zzzz-none-000/linux-4.19.183/lib/ratelimit.c	2021-03-24 10:07:39.000000000 +0000
+++ bcm63-7530ax-756/linux-4.19.183/lib/ratelimit.c	2023-06-28 08:54:21.000000000 +0000
@@ -13,6 +13,14 @@
 #include <linux/jiffies.h>
 #include <linux/export.h>
 
+#if defined(CONFIG_AVM_FASTIRQ)
+
+#include <asm/avm_enh/avm_fiq_os.h>
+#define _BUILD_AVM_CONTEXT_FUNC(func) firq_##func
+
+#else
+#define _BUILD_AVM_CONTEXT_FUNC(func) func
+#endif
 /*
  * __ratelimit - rate limiting
  * @rs: ratelimit_state data
@@ -39,7 +47,7 @@
 	 * in addition to the one that will be printed by
 	 * the entity that is holding the lock already:
 	 */
-	if (!raw_spin_trylock_irqsave(&rs->lock, flags))
+	if (!_BUILD_AVM_CONTEXT_FUNC(raw_spin_trylock_irqsave)(&rs->lock, flags))
 		return 0;
 
 	if (!rs->begin)
@@ -64,7 +72,7 @@
 		rs->missed++;
 		ret = 0;
 	}
-	raw_spin_unlock_irqrestore(&rs->lock, flags);
+	_BUILD_AVM_CONTEXT_FUNC(raw_spin_unlock_irqrestore)(&rs->lock, flags);
 
 	return ret;
 }