On Thursday 18 December 2014 09:48:31 Matthias Brugger wrote:
> > +static void __init mtk8250_serial_putc(struct uart_port *port, int c)
> > +{
> > + while ((readl(port->membase + (UART_LSR << 2)) & BOTH_EMPTY) !=
> > + BOTH_EMPTY)
> > + ;
>
> Please delete newline before the semicolon.
>
No, that newline is best kept in there for clarity. An even better way
to write this would be using cpu_relax():
while ((readl(port->membase + (UART_LSR << 2)) & BOTH_EMPTY) != BOTH_EMPTY)
cpu_relax();
which the kernel convention for doing busy-loops.
Arnd
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