diff --git a/linux-5.10/rk3568_patch/kernel.patch b/linux-5.10/rk3568_patch/kernel.patch
index 418214a103339e57e484fbd4da1fe72956f311d8..0eb4154db98dec25aa8c8d4cda893364d1f06240 100644
--- a/linux-5.10/rk3568_patch/kernel.patch
+++ b/linux-5.10/rk3568_patch/kernel.patch
@@ -1584879,9 +1584879,9 @@ index 1f231fcda657..56e16742fc2f 100644
  
  /*
 @@ -1889,7 +1901,9 @@ int serial8250_handle_irq(struct uart_port *port, unsigned int iir)
- 	unsigned char status;
- 	unsigned long flags;
- 	struct uart_8250_port *up = up_to_u8250p(port);
+	unsigned long flags;
+	struct uart_8250_port *up = up_to_u8250p(port);
+	struct tty_port *tport = &port->state->port;
 +#ifndef CONFIG_ARCH_ROCKCHIP
  	bool skip_rx = false;
 +#endif