[vortex] Compile warnings

[Joost]

I'm getting compile warnings when compiling the vortex driver. I'm running
Linux Debian 3.0, kernel 2.2.20.

gcc -DMODULE -Wall -Wstrict-prototypes -O6 -I/usr/src/kernel-headers-2.2.20/
include/ -c 3c59x.c

In file included from 3c59x.c:127:
kern_compat.h:216: warning: `DECLARE_MUTEX' redefined
/usr/src/kernel-headers-2.2.20/include/asm/semaphore.h:46: warning: this is
the location of the previous definition
kern_compat.h:224: warning: `time_before' redefined
/usr/src/kernel-headers-2.2.20/include/linux/timer.h:91: warning: this is
the location of the previous definition
/tmp/cchgqF0e.s: Assembler messages:
/tmp/cchgqF0e.s:72: Warning: ignoring changed section attributes for
.modinfo

Are these serious warnings?
Thanks,

Joost