On Wed, Aug 02, 2017 at 02:26:28PM +1000, Stephen Rothwell wrote:
> Hi Greg,
> 
> Today's linux-next merge of the tty tree got a conflict in:
> 
>   drivers/tty/serial/8250/8250_core.c
> 
> between commit:
> 
>   9527b82ae3af ("Revert "serial: Delete dead code for CIR serial ports"")
> 
> from the tty.current tree and commit:
> 
>   c7ac15ce8924 ("serial: core: move UPF_NO_TXEN_TEST to quirks and rename")
> 
> from the tty tree.
> 
> I fixed it up (see below) and can carry the fix as necessary. This
> is now fixed as far as linux-next is concerned, but any non trivial
> conflicts should be mentioned to your upstream maintainer when your tree
> is submitted for merging.  You may also want to consider cooperating
> with the maintainer of the conflicting tree to minimise any particularly
> complex conflicts.
> 
> -- 
> Cheers,
> Stephen Rothwell
> 
> diff --cc drivers/tty/serial/8250/8250_core.c
> index 1aab3010fbfa,3db9d6e19660..000000000000
> --- a/drivers/tty/serial/8250/8250_core.c
> +++ b/drivers/tty/serial/8250/8250_core.c
> @@@ -1043,24 -1043,14 +1043,25 @@@ int serial8250_register_8250_port(struc
>               if (up->dl_write)
>                       uart->dl_write = up->dl_write;
>   
>  -            if (serial8250_isa_config != NULL)
>  -                    serial8250_isa_config(0, &uart->port,
>  -                                    &uart->capabilities);
>  +            if (uart->port.type != PORT_8250_CIR) {
>  +                    if (serial8250_isa_config != NULL)
>  +                            serial8250_isa_config(0, &uart->port,
>  +                                            &uart->capabilities);
>  +
> ++                    serial8250_apply_quirks(uart);
>  +                    ret = uart_add_one_port(&serial8250_reg,
>  +                                            &uart->port);
>  +                    if (ret == 0)
>  +                            ret = uart->port.line;
>  +            } else {
>  +                    dev_info(uart->port.dev,
>  +                            "skipping CIR port at 0x%lx / 0x%llx, IRQ %d\n",
>  +                            uart->port.iobase,
>  +                            (unsigned long long)uart->port.mapbase,
>  +                            uart->port.irq);
>   
>  -            serial8250_apply_quirks(uart);
>  -            ret = uart_add_one_port(&serial8250_reg, &uart->port);
>  -            if (ret == 0)
>  -                    ret = uart->port.line;
>  +                    ret = 0;
>  +            }
>       }
>       mutex_unlock(&serial_mutex);
>   

Looks good, thanks!

greg k-h

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