* commits, untracked content and/or modified content).
  */
 static int match_stat_with_submodule(struct diff_options *diffopt,
-                                     struct cache_entry *ce, struct stat *st,
-                                     unsigned ce_option, unsigned *dirty_submodule)
+                                    const struct cache_entry *ce,
+                                    struct stat *st, unsigned ce_option,
+                                    unsigned *dirty_submodule)
 {
        int changed = ce_match_stat(ce, st, ce_option);
        if (S_ISGITLINK(ce->ce_mode)) {
 {
        int entries, i;
        int diff_unmerged_stage = revs->max_count;
-       int silent_on_removed = option & DIFF_SILENT_ON_REMOVED;
        unsigned ce_option = ((option & DIFF_RACY_IS_MODIFIED)
                              ? CE_MATCH_RACY_IS_DIRTY : 0);
 
+       if (option & DIFF_SILENT_ON_REMOVED)
+               handle_deprecated_show_diff_q(&revs->diffopt);
+
        diff_set_mnemonic_prefix(&revs->diffopt, "i/", "w/");
 
        if (diff_unmerged_stage < 0)
                                        perror(ce->name);
                                        continue;
                                }
-                               if (silent_on_removed)
-                                       continue;
                                wt_mode = 0;
                        }
                        dpath->mode = wt_mode;
                                perror(ce->name);
                                continue;
                        }
-                       if (silent_on_removed)
-                               continue;
                        diff_addremove(&revs->diffopt, '-', ce->ce_mode,
                                       ce->sha1, !is_null_sha1(ce->sha1),
                                       ce->name, 0);
 /* A file entry went away or appeared */
 static void diff_index_show_file(struct rev_info *revs,
                                 const char *prefix,
-                                struct cache_entry *ce,
+                                const struct cache_entry *ce,
                                 const unsigned char *sha1, int sha1_valid,
                                 unsigned int mode,
                                 unsigned dirty_submodule)
                       sha1, sha1_valid, ce->name, dirty_submodule);
 }
 
-static int get_stat_data(struct cache_entry *ce,
+static int get_stat_data(const struct cache_entry *ce,
                         const unsigned char **sha1p,
                         unsigned int *modep,
                         int cached, int match_missing,
 }
 
 static void show_new_file(struct rev_info *revs,
-                         struct cache_entry *new,
+                         const struct cache_entry *new,
                          int cached, int match_missing)
 {
        const unsigned char *sha1;
 }
 
 static int show_modified(struct rev_info *revs,
-                        struct cache_entry *old,
-                        struct cache_entry *new,
+                        const struct cache_entry *old,
+                        const struct cache_entry *new,
                         int report_missing,
                         int cached, int match_missing)
 {
  * give you the position and number of entries in the index).
  */
 static void do_oneway_diff(struct unpack_trees_options *o,
-       struct cache_entry *idx,
-       struct cache_entry *tree)
+                          const struct cache_entry *idx,
+                          const struct cache_entry *tree)
 {
        struct rev_info *revs = o->unpack_data;
        int match_missing, cached;
  * the fairly complex unpack_trees() semantic requirements, including
  * the skipping, the path matching, the type conflict cases etc.
  */
-static int oneway_diff(struct cache_entry **src, struct unpack_trees_options *o)
+static int oneway_diff(const struct cache_entry * const *src,
+                      struct unpack_trees_options *o)
 {
-       struct cache_entry *idx = src[0];
-       struct cache_entry *tree = src[1];
+       const struct cache_entry *idx = src[0];
+       const struct cache_entry *tree = src[1];
        struct rev_info *revs = o->unpack_data;
 
        /*
        opts.dst_index = NULL;
        opts.pathspec = &revs->diffopt.pathspec;
        opts.pathspec->recursive = 1;
-       opts.pathspec->max_depth = -1;
 
        init_tree_desc(&t, tree->buffer, tree->size);
        return unpack_trees(1, &t, &opts);
        struct rev_info revs;
 
        init_revisions(&revs, NULL);
-       init_pathspec(&revs.prune_data, opt->pathspec.raw);
+       copy_pathspec(&revs.prune_data, &opt->pathspec);
        revs.diffopt = *opt;
 
        if (diff_cache(&revs, tree_sha1, NULL, 1))