> Author: mav
> Date: Mon May 1 19:47:10 2017
> New Revision: 317659
> URL:
> https://svnweb.freebsd.org/changeset/base/317659
>
>
> Log:
> Make some UART consoles to not spin wait for data to be sent.
>
> At least with Tx FIFO enabled it shows me ~10% reduction of verbose boot
> time with serial console at 115200 baud.
>
> Reviewed by: marcel
> MFC after: 2 weeks
>
> Modified:
> head/sys/dev/uart/uart_dev_lpc.c
> head/sys/dev/uart/uart_dev_ns8250.c
After building head -r317729 for amd64 and aarch64,
when I tried armv6 I instead got the following failure:
--- uart_dev_lpc.o ---
/usr/src/sys/dev/uart/uart_dev_lpc.c:892:4: error: implicit declaration of
function 'ns8250_drain' is invalid in C99
[-Werror,-Wimplicit-function-declaration]
ns8250_drain(bas, UART_DRAIN_TRANSMITTER);
^
/usr/src/sys/dev/uart/uart_dev_lpc.c:892:4: note: did you mean
'lpc_ns8250_drain'?
/usr/src/sys/dev/uart/uart_dev_lpc.c:140:1: note: 'lpc_ns8250_drain' declared
here
lpc_ns8250_drain(struct uart_bas *bas, int what)
^
/usr/src/sys/dev/uart/uart_dev_lpc.c:892:4: error: this function declaration is
not a prototype [-Werror,-Wstrict-prototypes]
ns8250_drain(bas, UART_DRAIN_TRANSMITTER);
^
2 errors generated.
===
Mark Millard
markmi at dsl-only.net
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