From e8b8c977734193adedf2b0f607d6252c78e86394 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 19 Oct 2007 21:25:45 -0700 Subject: [PATCH] Revert "kconfig: tristate choices with mixed tristate and boolean values" This reverts commit a5bf3d891a6a0fb5aa122792d965e3774108b923. David Brownell notes that this causes a regression visible in the drivers/usb/gadget Kconfig file: "That Kconfig hasn't changed (other than adding new drivers), and it's worked that way for several years now ... so the issue seems to be changes in menuconfig/kconfig/etc semantics. The issue is that when USB_GADGET=m, it's no longer possible to configure peripheral controller drivers as modules ... the controller drivers can now only be configured for static linkage. It should be making a choice of one of the controller drivers which could work on the target system, and allow that driver to be linked either as a module (ok iff USB_GADGET=m) or statically." Reverting this commit resolves the problem, and also fixes a second problem that David noticed: various dependent options couldn't be enabled. Tested-and-reported-by: David Brownell Cc: Randy Dunlap Cc: Jan Beulich , Cc: Andrew Morton , Cc: Sam Ravnborg , Cc: Roman Zippel Signed-off-by: Linus Torvalds --- scripts/kconfig/menu.c | 35 +++++++++-------------------------- 1 file changed, 9 insertions(+), 26 deletions(-) diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c index 7bfa181..f9d0d91 100644 --- a/scripts/kconfig/menu.c +++ b/scripts/kconfig/menu.c @@ -235,23 +235,16 @@ void menu_finalize(struct menu *parent) sym = parent->sym; if (parent->list) { if (sym && sym_is_choice(sym)) { - /* find out choice type */ - enum symbol_type type = S_UNKNOWN; - + /* find the first choice value and find out choice type */ for (menu = parent->list; menu; menu = menu->next) { - if (menu->sym && menu->sym->type != S_UNKNOWN) { - if (type == S_UNKNOWN) - type = menu->sym->type; - if (type != S_BOOLEAN) - break; - if (menu->sym->type == S_TRISTATE) { - type = S_TRISTATE; - break; - } + if (menu->sym) { + current_entry = parent; + menu_set_type(menu->sym->type); + current_entry = menu; + menu_set_type(sym->type); + break; } } - current_entry = parent; - menu_set_type(type); parentdep = expr_alloc_symbol(sym); } else if (parent->prompt) parentdep = parent->prompt->visible.expr; @@ -260,16 +253,7 @@ void menu_finalize(struct menu *parent) for (menu = parent->list; menu; menu = menu->next) { basedep = expr_transform(menu->dep); - dep = parentdep; - if (sym && sym_is_choice(sym) && menu->sym) { - enum symbol_type type = menu->sym->type; - - if (type == S_UNKNOWN) - type = sym->type; - if (type != S_TRISTATE) - dep = expr_alloc_comp(E_EQUAL, sym, &symbol_yes); - } - basedep = expr_alloc_and(expr_copy(dep), basedep); + basedep = expr_alloc_and(expr_copy(parentdep), basedep); basedep = expr_eliminate_dups(basedep); menu->dep = basedep; if (menu->sym) @@ -342,8 +326,7 @@ void menu_finalize(struct menu *parent) "values not supported"); } current_entry = menu; - if (menu->sym->type == S_UNKNOWN) - menu_set_type(sym->type); + menu_set_type(sym->type); menu_add_symbol(P_CHOICE, sym, NULL); prop = sym_get_choice_prop(sym); for (ep = &prop->expr; *ep; ep = &(*ep)->left.expr) -- 1.8.2.3