kconfig: clean-up reverse dependency help implementation

This commit splits out the special E_OR handling ('-' instead of '||')
into a dedicated helper expr_print_revdev().

Restore the original expr_print() prior to commit 1ccb27143360
("kconfig: make "Selected by:" and "Implied by:" readable").

This makes sense because:

  - We need to chop those expressions only when printing the reverse
    dependency, and only when E_OR is encountered

  - Otherwise, it should be printed as before, so fall back to
    expr_print()

This also improves the behavior; for a single line, it was previously
displayed in the same line as "Selected by", like this:

  Selected by: A [=n] && B [=n]

This will be displayed in a new line, consistently:

  Selected by:
  - A [=n] && B [=n]

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Petr Vorel <pvorel@suse.cz>

1 files changed, 2 insertions, 2 deletions

diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c
index 36cd3e1f1c28..02f46813e732 100644
--- a/scripts/kconfig/menu.c
+++ b/scripts/kconfig/menu.c
@@ -829,15 +829,15 @@ static void get_symbol_str(struct gstr *r, struct symbol *sym,
 	get_symbol_props_str(r, sym, P_SELECT, _("  Selects: "));
 	if (sym->rev_dep.expr) {
 		str_append(r, _("  Selected by: "));
-		expr_gstr_print_revdep(sym->rev_dep.expr, r);
 		str_append(r, "\n");
+		expr_gstr_print_revdep(sym->rev_dep.expr, r);
 	}
 
 	get_symbol_props_str(r, sym, P_IMPLY, _("  Implies: "));
 	if (sym->implied.expr) {
 		str_append(r, _("  Implied by: "));
-		expr_gstr_print_revdep(sym->implied.expr, r);
 		str_append(r, "\n");
+		expr_gstr_print_revdep(sym->implied.expr, r);
 	}
 
 	str_append(r, "\n\n");