3c59x has a tunable `rx_copybreak'. But it's declared const, so recent gcc's
rub it out altogether, and modprobe says `3c59x: falsely claims to have
parameter rx_copybreak'.
/* Set the copy breakpoint for the copy-only-tiny-frames scheme.
Setting to > 1512 effectively disables this feature. */
#ifndef __arm__
-static const int rx_copybreak = 200;
+static int rx_copybreak = 200;
#else
/* ARM systems perform better by disregarding the bus-master
transfer capability of these cards. -- rmk */
-static const int rx_copybreak = 1513;
+static int rx_copybreak = 1513;
#endif
/* Allow setting MTU to a larger size, bypassing the normal ethernet setup. */
static const int mtu = 1500;