Messages in this thread | | | Date | Fri, 11 Mar 2011 13:55:02 +0000 | From | Alan Cox <> | Subject | Re: [PATCH 3/3] tty: serial: Check UPF_FOURPORT, when CONFIG_SERIAL_8250_FOURPORT is defined |
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On Fri, 11 Mar 2011 21:58:12 +0900 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> wrote:
> When CONFIG_SERIAL_8250_FOURPORT is defined, driver uses UPF_FOURPORT in port.flags. > Though CONFIG_SERIAL_8250_FOURPORT is not defined, there is a case to check UPF_FOURPORT. > When CONFIG_SERIAL_8250_FOURPORT is defined only, this checks UPF_FOURPORT.
Again all this can be avoided by defining WARN traps for the unsupported I/O methods in your architecture.
Alan
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