Berlios driver and debian 2.4.20-i586-tsc (was Re: Kernel error)

Hi Florin,

On Tue, 8 Jul 2003, Florin Buzesteanu wrote:

> router:~/# depmod -ae
>
> depmod: *** Unresolved symbols in
> /lib/modules/2.4.20-1-586tsc/kernel/drivers/usb/at76c503-i3861.o
> depmod:         usb_deregister
> depmod:         usb_register
> depmod:         printk
> ...
>
> dont know if this are errors, hope not ;)

These are errors: loading these modules will fail, because there
external symbol references cannot be satisfied by the running kernel or
some other modules, i.e. the problem you get later.

Seems your kernel has symbol versioning, while the Makefile of
the driver cannot see it. Either the sources don't match the running
kernel or the Makefile is broken. Please post the output of:
 grep CONFIG_MODVERSIONS \
   /lib/modules/`uname -r`/build/include/linux/autoconf.h
 grep printk /proc/ksyms

> router:~/# grep usbdfu /proc/ksyms
>
> c59347dc usbdfu_register_R__ver_usbdfu_register [usbdfu]
> c5934864 usbdfu_deregister_R__ver_usbdfu_deregister     [usbdfu]
> c5934914 usbdfu_in_use_R__ver_usbdfu_in_use     [usbdfu]
> c5934a68 usbdfu_initiate_download_R__ver_usbdfu_initiate_download [usbdfu]
> c5934000

Wonder how you got the _R_ tail here. I don't know the settings of this
debain kernel. What does a
	grep usbdfu_ <your kernel root dir>/include/linux/modules/*
reveal? Did you compile your own kernel from these sources?

> this are the berlios 0.10 driver have download the latest snapshot from
> there but i can not compile it.
>
> get this error:
>
> ----------------------------------------------
> router:~/at76c503a# make
> gcc -MD -O2 -Wall -Wstrict-prototypes -pipe -fno-strict-aliasing
> -fno-common -Wno-sign-compare -Wno-unused-variable -D__KERNEL__ -DMODULE
> -DEXPORT_SYMTAB -DDRIVER_VERSION=\"v0.11beta2\"
> -I/lib/modules/2.4.20-1-586tsc/build/include  -c at76c503.c
> cc1: Invalid option `-Wno-unused-variable'
> make: *** [at76c503.o] Error 1
> ----------------------------------------------
That option was introduced recently to suppress warnings of gcc 3.3
(the version SuSE 8.2 installs) while compiling kernel headers.
What's your gcc version ("gcc --version")?

IMHO the latest cvs snapshot won't fix the insmod problems above.

/Jörg