Re: [PATCH -mm] 2.6.23-rc4-mm1: kgdboe link errors

From: Matt Mackall
Date: Wed Sep 12 2007 - 14:16:33 EST


On Wed, Sep 12, 2007 at 10:15:37AM -0700, Randy Dunlap wrote:
> On Wed, 12 Sep 2007 11:31:22 +0200 Jiri Slaby wrote:
>
> > randconfig [1] causes this link errors:
> > ERROR: "netpoll_cleanup" [drivers/net/kgdboe.ko] undefined!
> > ERROR: "netpoll_setup" [drivers/net/kgdboe.ko] undefined!
> > ERROR: "netpoll_parse_options" [drivers/net/kgdboe.ko] undefined!
> > ERROR: "netpoll_poll" [drivers/net/kgdboe.ko] undefined!
> > ERROR: "netpoll_send_udp" [drivers/net/kgdboe.ko] undefined!
> > ERROR: "netpoll_set_trap" [drivers/net/kgdboe.ko] undefined!
> > make[2]: *** [__modpost] Error 1
> > make[1]: *** [modules] Error 2
> > make: *** [all] Error 2
> >
> > [1] http://www.fi.muni.cz/~xslaby/sklad/1.config
>
>
> From: Randy Dunlap <randy.dunlap@xxxxxxxxxx>
>
> Fix kgdb build problems:
> Building modules, stage 2.
> ERROR: "netpoll_cleanup" [drivers/net/kgdboe.ko] undefined!
> ERROR: "netpoll_setup" [drivers/net/kgdboe.ko] undefined!
> ERROR: "netpoll_parse_options" [drivers/net/kgdboe.ko] undefined!
> ERROR: "netpoll_poll" [drivers/net/kgdboe.ko] undefined!
> ERROR: "netpoll_send_udp" [drivers/net/kgdboe.ko] undefined!
> ERROR: "netpoll_set_trap" [drivers/net/kgdboe.ko] undefined!
> make[1]: *** [__modpost] Error 1
>
>
> Add 'select' for net-poll/console related config symbols, but
> make KGDBOE 'depend on' NET. We don't want to 'select' CONFIG_NET,
> but if it is already enabled, the 'select's will enable the rest
> of the needed interfaces.
>
> Signed-off-by: Randy Dunlap <randy.dunlap@xxxxxxxxxx>
> ---
> lib/Kconfig.kgdb | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> --- linux-2.6.23-rc4-mm1.orig/lib/Kconfig.kgdb
> +++ linux-2.6.23-rc4-mm1/lib/Kconfig.kgdb
> @@ -174,9 +174,11 @@ endchoice
>
> config KGDBOE
> tristate "KGDB: On ethernet" if !KGDBOE_NOMODULE
> - depends on m && KGDB
> + depends on m && KGDB && NET
> + select NETCONSOLE

NETCONSOLE shouldn't be necessary. Otherwise this looks ok to my
kconfig-addled brain.

> select NETPOLL
> select NETPOLL_TRAP
> + select NET_POLL_CONTROLLER
> help
> Uses the NETPOLL API to communicate with the host GDB via UDP.
> In order for this to work, the ethernet interface specified must

--
Mathematics is the supreme nostalgia of our time.
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