diff options
Diffstat (limited to 'scripts/kconfig/menu.c')
| -rw-r--r-- | scripts/kconfig/menu.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c index 0f1a6513987c..b2d8d4e11e07 100644 --- a/scripts/kconfig/menu.c +++ b/scripts/kconfig/menu.c @@ -127,8 +127,18 @@ static struct expr *rewrite_m(struct expr *e) return e; } -void menu_add_dep(struct expr *dep) +void menu_add_dep(struct expr *dep, struct expr *cond) { + if (cond) { + /* + * We have "depends on X if Y" and we want: + * Y != n --> X + * Y == n --> y + * That simplifies to: (X || (Y == n)) + */ + dep = expr_alloc_or(dep, + expr_trans_compare(cond, E_EQUAL, &symbol_no)); + } current_entry->dep = expr_alloc_and(current_entry->dep, dep); } |