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Subject[PATCH] tristate choices with mixed tristate and boolean values (v2)
Change kconfig behavior so that mixing bool and tristate config
settings in a choice is possible and has the desired effect of offering
just the tristate options individually if the choice gets set to M, and
a normal boolean selection if the choice gets set to Y.

Signed-off-by: Jan Beulich <jbeulich@novell.com>

---
scripts/kconfig/expr.c | 10 ++++++++--
scripts/kconfig/menu.c | 33 ++++++++++++++++++++++++++++++---
2 files changed, 38 insertions(+), 5 deletions(-)
--- linux-2.6.24-rc8/scripts/kconfig/expr.c 2006-09-20 05:42:06.000000000 +0200
+++ 2.6.24-rc8-tristate-choices/scripts/kconfig/expr.c 2008-01-21 13:32:44.000000000 +0100
@@ -1034,12 +1034,18 @@ void expr_print(struct expr *e, void (*f
expr_print(e->left.expr, fn, data, E_NOT);
break;
case E_EQUAL:
- fn(data, e->left.sym, e->left.sym->name);
+ if (e->left.sym->name)
+ fn(data, e->left.sym, e->left.sym->name);
+ else
+ fn(data, NULL, "<choice>");
fn(data, NULL, "=");
fn(data, e->right.sym, e->right.sym->name);
break;
case E_UNEQUAL:
- fn(data, e->left.sym, e->left.sym->name);
+ if (e->left.sym->name)
+ fn(data, e->left.sym, e->left.sym->name);
+ else
+ fn(data, NULL, "<choice>");
fn(data, NULL, "!=");
fn(data, e->right.sym, e->right.sym->name);
break;
--- linux-2.6.24-rc8/scripts/kconfig/menu.c 2007-10-09 22:31:38.000000000 +0200
+++ 2.6.24-rc8-tristate-choices/scripts/kconfig/menu.c 2008-01-22 09:36:59.000000000 +0100
@@ -239,9 +239,11 @@ void menu_finalize(struct menu *parent)
for (menu = parent->list; menu; menu = menu->next) {
if (menu->sym) {
current_entry = parent;
- menu_set_type(menu->sym->type);
+ if (sym->type == S_UNKNOWN)
+ menu_set_type(menu->sym->type);
current_entry = menu;
- menu_set_type(sym->type);
+ if (menu->sym->type == S_UNKNOWN)
+ menu_set_type(sym->type);
break;
}
}
@@ -326,7 +328,32 @@ void menu_finalize(struct menu *parent)
"values not supported");
}
current_entry = menu;
- menu_set_type(sym->type);
+ if (menu->sym->type == S_UNKNOWN)
+ menu_set_type(sym->type);
+ if (sym->type == S_TRISTATE && menu->sym->type != S_TRISTATE) {
+ basedep = expr_alloc_comp(E_EQUAL, sym, &symbol_yes);
+ basedep = expr_alloc_and(basedep, menu->dep);
+ basedep = expr_eliminate_dups(basedep);
+ menu->dep = basedep;
+ for (prop = menu->sym->prop; prop; prop = prop->next) {
+ if (prop->menu != menu)
+ continue;
+ dep = expr_alloc_and(expr_copy(basedep),
+ prop->visible.expr);
+ dep = expr_eliminate_dups(dep);
+ dep = expr_trans_bool(dep);
+ prop->visible.expr = dep;
+ if (prop->type == P_SELECT) {
+ struct symbol *es = prop_get_symbol(prop);
+ dep2 = expr_alloc_symbol(menu->sym);
+ dep = expr_alloc_and(dep2,
+ expr_copy(dep));
+ dep = expr_alloc_or(es->rev_dep.expr, dep);
+ dep = expr_eliminate_dups(dep);
+ es->rev_dep.expr = dep;
+ }
+ }
+ }
menu_add_symbol(P_CHOICE, sym, NULL);
prop = sym_get_choice_prop(sym);
for (ep = &prop->expr; *ep; ep = &(*ep)->left.expr)




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