const unsigned char *sha1;
                struct object *o;
 
-               for (i = 0; i < revs->num_ignore_packed; i++) {
-                       if (matches_pack_name(p, revs->ignore_packed[i]))
-                               break;
-               }
-               if (revs->num_ignore_packed <= i)
+               if (is_kept_pack(p, revs))
                        continue;
                if (open_pack_index(p))
                        die("cannot open pack index");
        const unsigned char *sha1;
 
        for (p = packed_git; p; p = p->next) {
-               for (i = 0; i < revs->num_ignore_packed; i++) {
-                       if (matches_pack_name(p, revs->ignore_packed[i]))
-                               break;
-               }
-               if (revs->num_ignore_packed <= i)
+               if (is_kept_pack(p, revs))
                        continue;
 
                if (open_pack_index(p))
 
 extern unsigned long unpack_object_header_gently(const unsigned char *buf, unsigned long len, enum object_type *type, unsigned long *sizep);
 extern unsigned long get_size_from_delta(struct packed_git *, struct pack_window **, off_t);
 extern const char *packed_object_info_detail(struct packed_git *, off_t, unsigned long *, unsigned long *, unsigned int *, unsigned char *);
-extern int matches_pack_name(struct packed_git *p, const char *name);
 
 /* Dumb servers support */
 extern int update_server_info(int);
 
 extern enum commit_action simplify_commit(struct rev_info *revs, struct commit *commit);
 
 extern int has_sha1_kept_pack(const unsigned char *sha1, const struct rev_info *);
+extern int is_kept_pack(const struct packed_git *, const struct rev_info *);
 
 #endif
 
        return 0;
 }
 
-int matches_pack_name(struct packed_git *p, const char *name)
+static int matches_pack_name(const struct packed_git *p, const char *name)
 {
        const char *last_c, *c;
 
        return 0;
 }
 
+int is_kept_pack(const struct packed_git *p, const struct rev_info *revs)
+{
+       int i;
+
+       for (i = 0; i < revs->num_ignore_packed; i++) {
+               if (matches_pack_name(p, revs->ignore_packed[i]))
+                       return 0;
+       }
+       return 1;
+}
+
 static int find_pack_ent(const unsigned char *sha1, struct pack_entry *e,
                         const struct rev_info *revs)
 {
        p = (last_found == (void *)1) ? packed_git : last_found;
 
        do {
-               if (revs->ignore_packed) {
-                       const char **ig;
-                       for (ig = revs->ignore_packed; *ig; ig++)
-                               if (matches_pack_name(p, *ig))
-                                       break;
-                       if (*ig)
-                               goto next;
-               }
-
+               if (revs->ignore_packed && !is_kept_pack(p, revs))
+                       goto next;
                if (p->num_bad_objects) {
                        unsigned i;
                        for (i = 0; i < p->num_bad_objects; i++)