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-rw-r--r--scripts/kconfig/expr.c2
-rw-r--r--scripts/kconfig/expr.h2
2 files changed, 2 insertions, 2 deletions
diff --git a/scripts/kconfig/expr.c b/scripts/kconfig/expr.c
index 65531a7..0010034 100644
--- a/scripts/kconfig/expr.c
+++ b/scripts/kconfig/expr.c
@@ -64,7 +64,7 @@ struct expr *expr_alloc_or(struct expr *e1, struct expr *e2)
return e2 ? expr_alloc_two(E_OR, e1, e2) : e1;
}
-struct expr *expr_copy(struct expr *org)
+struct expr *expr_copy(const struct expr *org)
{
struct expr *e;
diff --git a/scripts/kconfig/expr.h b/scripts/kconfig/expr.h
index 184eb6a..218991b 100644
--- a/scripts/kconfig/expr.h
+++ b/scripts/kconfig/expr.h
@@ -191,7 +191,7 @@ struct expr *expr_alloc_two(enum expr_type type, struct expr *e1, struct expr *e
struct expr *expr_alloc_comp(enum expr_type type, struct symbol *s1, struct symbol *s2);
struct expr *expr_alloc_and(struct expr *e1, struct expr *e2);
struct expr *expr_alloc_or(struct expr *e1, struct expr *e2);
-struct expr *expr_copy(struct expr *org);
+struct expr *expr_copy(const struct expr *org);
void expr_free(struct expr *e);
int expr_eq(struct expr *e1, struct expr *e2);
void expr_eliminate_eq(struct expr **ep1, struct expr **ep2);
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