kconfig: change some expr_*() functions to bool

This clarifies the behavior of these functions.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/scripts/kconfig/expr.h b/scripts/kconfig/expr.h
index c82d08bbd704..4ab7422ddbd8 100644
--- a/scripts/kconfig/expr.h
+++ b/scripts/kconfig/expr.h
@@ -278,11 +278,11 @@ struct expr *expr_alloc_or(struct expr *e1, struct expr *e2);
 struct expr *expr_copy(const struct expr *org);
 void expr_free(struct expr *e);
 void expr_eliminate_eq(struct expr **ep1, struct expr **ep2);
-int expr_eq(struct expr *e1, struct expr *e2);
+bool expr_eq(struct expr *e1, struct expr *e2);
 tristate expr_calc_value(struct expr *e);
 struct expr *expr_eliminate_dups(struct expr *e);
 struct expr *expr_transform(struct expr *e);
-int expr_contains_symbol(struct expr *dep, struct symbol *sym);
+bool expr_contains_symbol(struct expr *dep, struct symbol *sym);
 bool expr_depends_symbol(struct expr *dep, struct symbol *sym);
 struct expr *expr_trans_compare(struct expr *e, enum expr_type type, struct symbol *sym);
 
@@ -292,7 +292,7 @@ void expr_gstr_print(const struct expr *e, struct gstr *gs);
 void expr_gstr_print_revdep(struct expr *e, struct gstr *gs,
 			    tristate pr_type, const char *title);
 
-static inline int expr_is_yes(const struct expr *e)
+static inline bool expr_is_yes(const struct expr *e)
 {
 	return !e || (e->type == E_SYMBOL && e->left.sym == &symbol_yes);
 }