Re: 2.4.32: unresolved symbol unregister_qdisc

[Randy.Dunlap]

On Sat, 8 Apr 2006 19:18:47 -0400 (EDT) George P Nychis wrote:

> Yeah, this module is unfortunately not under the GPL, it was made for research and i am not the author, I was only given the code for my own research.
> 
> I enabled that support in the kernel, and then tried to recompile and get tons of errors/warnings... so maybe I am missing something else to be enabled in the kernel... here are a few examples of errors:
> /usr/include/linux/skbuff.h:30:26: net/checksum.h: No such file or directory
> /usr/include/asm/irq.h:16:25: irq_vectors.h: No such file or directory
> /usr/include/linux/irq.h:72: error: `NR_IRQS' undeclared here (not in a function)
> /usr/include/asm/hw_irq.h:28: error: `NR_IRQ_VECTORS' undeclared here (not in a function)
> 
> I think those are the top most errors, so if i can fix those hopefully the rest shall vanish!

Looks like a Makefile problem then.  Can you post the Makefile?
Hopefully it is using a Makefile and not just an elaborate gcc command line.

[and please don't top-post]

> - George
> 
> 
> > From: "George P Nychis" <gnychis@xxxxxxx> Date: Sat, 8 Apr 2006 18:47:34
> > -0400 (EDT)
> > 
> >> Hey,
> >> 
> >> I have a kernel module that uses unregister_qdisc and register_qdisc,
> >> whenever i try to insert the module I get: 
> >> /lib/modules/2.4.32/kernel/net/sched/sch_xcp.o:
> >> /lib/modules/2.4.32/kernel/net/sched/sch_xcp.o: unresolved symbol
> >> unregister_qdisc /lib/modules/2.4.32/kernel/net/sched/sch_xcp.o:
> >> /lib/modules/2.4.32/kernel/net/sched/sch_xcp.o: unresolved symbol
> >> register_qdisc
> >> 
> >> Am i missing some sort of support in the kernel?
> > 
> > Make sure CONFIG_NET_SCHED is enabled and that you compiled your module
> > against that kernel.
> > 
> > Where does this sch_xcp come from?  It's not in the vanilla sources.
> > 
> > Also, please direct networking questions to the netdev@xxxxxxxxxxxxxxx 
> > mailing list which I have added to the CC:.

---
~Randy
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