[PATCH 2/2] serial: fsl_lpuart: add eDMA support

[Yao Yuan]

Hi, Arnd

> Arnd Bergmann wrote:
> 
> > @@ -131,6 +158,10 @@ static struct of_device_id lpuart_dt_ids[] = {
> > };  MODULE_DEVICE_TABLE(of, lpuart_dt_ids);
> >
> > +static int lpuart_dma_tx(struct lpuart_port *sport, unsigned long
> > +count); static int lpuart_dma_rx(struct lpuart_port *sport); static
> > +void lpuart_prepare_tx(struct lpuart_port *sport);
> > +
> >  static void lpuart_stop_tx(struct uart_port *port)  {
> >  	unsigned char temp;
> 
> Coding style: Please try to avoid forward declarations for "static"
> functions.
> Instead, reorder the code in a way that they are not needed.
> 
> 	Arnd
> 

I need the functions like this:
Static A()
{
	if(condition) 
		B();
}
Static B()
{
	callback:C();
}
Static C()
{
	if(condition)
		A();
}

So, it's hard to avoid forward declarations for "static" functions. I'm very glad for a better way.