This moves iwm_error_event_table and the advanced_lookup table inside #ifdef IWM_DEBUG. They're not used outside this ifdef.
Index: if_iwm.c =================================================================== RCS file: /cvs/src/sys/dev/pci/if_iwm.c,v retrieving revision 1.57 diff -u -p -r1.57 if_iwm.c --- if_iwm.c 16 Oct 2015 10:04:56 -0000 1.57 +++ if_iwm.c 16 Oct 2015 10:48:36 -0000 @@ -407,8 +407,8 @@ void iwm_start(struct ifnet *); void iwm_stop(struct ifnet *, int); void iwm_watchdog(struct ifnet *); int iwm_ioctl(struct ifnet *, u_long, iwm_caddr_t); -const char *iwm_desc_lookup(uint32_t); #ifdef IWM_DEBUG +const char *iwm_desc_lookup(uint32_t); void iwm_nic_error(struct iwm_softc *); #endif void iwm_notif_intr(struct iwm_softc *); @@ -5761,6 +5761,7 @@ iwm_ioctl(struct ifnet *ifp, u_long cmd, * The interrupt side of things */ +#ifdef IWM_DEBUG /* * Note: This structure is read from the device with IO accesses, * and the reading already does the endian conversion. As it is @@ -5852,7 +5853,6 @@ iwm_desc_lookup(uint32_t num) return advanced_lookup[i].name; } -#ifdef IWM_DEBUG /* * Support for dumping the error log seemed like a good idea ... * but it's mostly hex junk and the only sensible thing is the