serial: sa1100: make sa1100_register_uart_fns a function
Calling sa1100_register_uart_fns() leaves the port structure unused when CONFIG_SERIAL_SA1100 is disabled, and we get a compiler warning about that: arch/arm/mach-sa1100/badge4.c:317:31: warning: 'badge4_port_fns' defined but not used [-Wunused-variable] static struct sa1100_port_fns badge4_port_fns __initdata = { This turns the two empty macros into empty inline functions, which has the same effect, but lets the compiler know that the variables are intentionally unused. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -26,8 +26,12 @@ struct sa1100_port_fns {
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void sa1100_register_uart_fns(struct sa1100_port_fns *fns);
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void sa1100_register_uart(int idx, int port);
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#else
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#define sa1100_register_uart_fns(fns) do { } while (0)
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#define sa1100_register_uart(idx,port) do { } while (0)
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static inline void sa1100_register_uart_fns(struct sa1100_port_fns *fns)
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{
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}
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static inline void sa1100_register_uart(int idx, int port)
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{
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}
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#endif
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#endif
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