Bjorn Helgaas (on Wed, 21 Mar 2007 10:35:38 -0600) wrote: >On Tuesday 20 March 2007 08:32, Bjorn Helgaas wrote: >> On Tuesday 20 March 2007 00:46, Keith Owens wrote: >> > Booting with 'console=tty console=ttyS0,9600'. The serial console on >> > ttyS0 (0x3f8, irq 4) is probed twice, once from serial8250_init() and >> > again from serial_pnp_probe(). >> >> I played with this last summer, but was too timid to finish it >> and post it. My plan was to remove the legacy SERIAL_PORT_DFNS, >> make platform devices for them, and only register the platform >> devices in the absence of PNP. >> >> My motivation at the time was to prevent 8250 from claiming IRDA >> devices that happened to live at legacy UART addresses. I also >> wanted to make IRDA (smsc-ircc2 in my case) smart enough to use >> PNP to locate its devices, since 8250 would no longer claim them. >> >> Here's the dusty patch (against 2.6.18-rc1-mm2). If it seems >> like a reasonable thing to do, I can update it, polish it up, >> add a changelog, and post it. > >Keith, does this patch help? Russell didn't complain about it, so >if it fixes your problem, maybe we could put it in -mm and see if >it breaks anything else.
The aim of the patch looks sensible, but it will not compile for 2.6.21-rc4. 8250_x86.c tests pnp_platform_devices, which does not exist. Also the combination of CONFIG_SERIAL_8250_X86=y and CONFIG_SERIAL_8250_PNP=m would result in 8250_x86.o being built into vmlinux but referring to serial8250_nopnp in module 8250_pnp.o, kernel to module references are tricky. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
