--- linux-2.6.32/drivers/net/avm_cpmac/cpphy_entry.c
+++ linux-2.6.32/drivers/net/avm_cpmac/cpphy_entry.c
@@ -553,6 +553,8 @@
 #   error "OHIO/AR7 not supported anymore!"
 #   endif /*--- #if (defined(CONFIG_MIPS_OHIO) || defined(CONFIG_MIPS_AR7)) ---*/
 
+    printk(KERN_INFO "cpmac: compiled with sizeof(struct sk_buff) = %d\n", sizeof(struct sk_buff));
+
     /* Initialize administrative array */
     memset(&cpmac_global, 0, sizeof(cpmac_global_t));
     for(instance = 0; instance < AVM_CPMAC_MAX_PHYS; instance++) {