diff --git a/sys/dev/cxgbe/iw_cxgbe/iw_cxgbe.h b/sys/dev/cxgbe/iw_cxgbe/iw_cxgbe.h
index 38a8af6f0819..f09f0ca84301 100644
--- a/sys/dev/cxgbe/iw_cxgbe/iw_cxgbe.h
+++ b/sys/dev/cxgbe/iw_cxgbe/iw_cxgbe.h
@@ -1004,43 +1004,6 @@ gen_pool_destroy(struct gen_pool *gp)
 #define L1_CACHE_BYTES 32
 #endif
 
-static inline
-int idr_for_each(struct idr *idp,
-                 int (*fn)(int id, void *p, void *data), void *data)
-{
-        int n, id, max, error = 0;
-        struct idr_layer *p;
-        struct idr_layer *pa[MAX_LEVEL];
-        struct idr_layer **paa = &pa[0];
-
-        n = idp->layers * IDR_BITS;
-        p = idp->top;
-        max = 1 << n;
-
-        id = 0;
-        while (id < max) {
-                while (n > 0 && p) {
-                        n -= IDR_BITS;
-                        *paa++ = p;
-                        p = p->ary[(id >> n) & IDR_MASK];
-                }
-
-                if (p) {
-                        error = fn(id, (void *)p, data);
-                        if (error)
-                                break;
-                }
-
-                id += 1 << n;
-                while (n < fls(id)) {
-                        n += IDR_BITS;
-                        p = *--paa;
-                }
-        }
-
-        return error;
-}
-
 void c4iw_cm_init_cpl(struct adapter *);
 void c4iw_cm_term_cpl(struct adapter *);