kernel_5.10 no rt

hc

2023-12-11 6778948f9de86c3cfaf36725a7c87dcff9ba247f

 kernel/drivers/tty/serial/8250/8250_mtk.c
..
..
@@ -222,37 +222,12 @@
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 static void mtk8250_disable_intrs(struct uart_8250_port *up, int mask)
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 {
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-	struct uart_port *port = &up->port;
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-	unsigned int flags;
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-	unsigned int ier;
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-	bool is_console;
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-
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-	is_console = uart_console(port);
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-
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-	if (is_console)
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-		console_atomic_lock(&flags);
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-
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-	ier = serial_in(up, UART_IER);
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-	serial_out(up, UART_IER, ier & (~mask));
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-
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-	if (is_console)
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-		console_atomic_unlock(flags);
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+	serial_out(up, UART_IER, serial_in(up, UART_IER) & (~mask));
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 }
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 static void mtk8250_enable_intrs(struct uart_8250_port *up, int mask)
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 {
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-	struct uart_port *port = &up->port;
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-	unsigned int flags;
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-	unsigned int ier;
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-
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-	if (uart_console(port))
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-		console_atomic_lock(&flags);
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-
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-	ier = serial_in(up, UART_IER);
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-	serial_out(up, UART_IER, ier | mask);
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-
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-	if (uart_console(port))
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-		console_atomic_unlock(flags);
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+	serial_out(up, UART_IER, serial_in(up, UART_IER) | mask);
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 }
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 static void mtk8250_set_flow_ctrl(struct uart_8250_port *up, int mode)