When compiling current for the NSLU2 this afternoon, I received an error 
compiling the file ixp425_if_npe.c in src/sys/arch/arm/xscale.  I 
apologize for not saving the output, but the error was due to the 
compiler setting to treat all warnings as errors.  The warning was 
unused variable "ifr" in function npeioctl, line 1625.  It is, in fact, 
unused, though it wasn't a week ago.  I commented out the declaration 
for ifr (line 1625) and the file compiled ok.  Here's the diff.

--- sys/arch/arm/xscale/ixp425_if_npe.c~        2008-01-19 
17:10:14.000000000 -0500
+++ sys/arch/arm/xscale/ixp425_if_npe.c 2008-01-25 18:31:38.000000000 -0500
@@ -1262,7 +1262,9 @@
 npeioctl(struct ifnet *ifp, u_long cmd, void *data)
 {
        struct npe_softc *sc = ifp->if_softc;
-       struct ifreq *ifr = (struct ifreq *)data;
+/*
+ *     struct ifreq *ifr = (struct ifreq *)data;
+ */
        int s, error = 0;

        s = splnet();

Thanks, Don