--- zzzz-none-000/linux-4.19.183/drivers/tty/serial/bcm63xx_uart.c	2021-03-24 10:07:39.000000000 +0000
+++ bcm63-7530ax-756/linux-4.19.183/drivers/tty/serial/bcm63xx_uart.c	2023-06-28 08:54:20.000000000 +0000
@@ -700,11 +700,14 @@
 			      unsigned int count)
 {
 	struct uart_port *port;
+#if !defined(CONFIG_BCM_KF_PRINTK_INT_ENABLED) || !defined(CONFIG_BCM_PRINTK_INT_ENABLED)
 	unsigned long flags;
 	int locked;
+#endif
 
 	port = &ports[co->index];
 
+#if !defined(CONFIG_BCM_KF_PRINTK_INT_ENABLED) || !defined(CONFIG_BCM_PRINTK_INT_ENABLED)
 	local_irq_save(flags);
 	if (port->sysrq) {
 		/* bcm_uart_interrupt() already took the lock */
@@ -715,6 +718,7 @@
 		spin_lock(&port->lock);
 		locked = 1;
 	}
+#endif
 
 	/* call helper to deal with \r\n */
 	uart_console_write(port, s, count, bcm_console_putchar);
@@ -722,9 +726,11 @@
 	/* and wait for char to be transmitted */
 	wait_for_xmitr(port);
 
+#if !defined(CONFIG_BCM_KF_PRINTK_INT_ENABLED) || !defined(CONFIG_BCM_PRINTK_INT_ENABLED)
 	if (locked)
 		spin_unlock(&port->lock);
 	local_irq_restore(flags);
+#endif
 }
 
 /*