kconfig: remove SYMBOL_CHOICEVAL flag

This flag is unneeded because a choice member can be detected by
other means.

Signed-off-by: Masahiro Yamada <[e-mail]>

scripts/kconfig/expr.h

···
 
 #define SYMBOL_CONST      0x0001  /* symbol is const */
 #define SYMBOL_CHECK      0x0008  /* used during dependency checking */
-#define SYMBOL_CHOICEVAL  0x0020  /* used as a value in a choice block */
 #define SYMBOL_VALID      0x0080  /* set when symbol.curr is calculated */
 #define SYMBOL_WRITE      0x0200  /* write symbol to file (KCONFIG_CONFIG) */
 #define SYMBOL_WRITTEN    0x0800  /* track info to avoid double-write to .config */

scripts/kconfig/gconf.c

···
 		row[COL_BTNVIS] = GINT_TO_POINTER(FALSE);
 		return row;
 	}
-	if (sym->flags & SYMBOL_CHOICEVAL)
+	if (sym_is_choice_value(sym))
 		row[COL_BTNRAD] = GINT_TO_POINTER(TRUE);
 
 	stype = sym_get_type(sym);

scripts/kconfig/lkc.h

···
 	return sym->name == NULL;
 }
 
-static inline bool sym_is_choice_value(const struct symbol *sym)
-{
-	return sym->flags & SYMBOL_CHOICEVAL ? true : false;
-}
+bool sym_is_choice_value(const struct symbol *sym);
 
 static inline bool sym_has_value(const struct symbol *sym)
 {

scripts/kconfig/menu.c

···
 		sym->dir_dep.expr = expr_alloc_or(sym->dir_dep.expr, parent->dep);
 	}
 	for (menu = parent->list; menu; menu = menu->next) {
-		if (sym && sym_is_choice(sym) &&
-		    menu->sym && !sym_is_choice_value(menu->sym)) {
-			menu->sym->flags |= SYMBOL_CHOICEVAL;
-		}
-
 		/*
 		 * This code serves two purposes:
 		 *

scripts/kconfig/symbol.c

···
 	return !sym_is_choice(sym) && sym->visible > sym->rev_dep.tri;
 }
 
+bool sym_is_choice_value(const struct symbol *sym)
+{
+	return !list_empty(&sym->choice_link);
+}
+
 HASHTABLE_DEFINE(sym_hashtable, SYMBOL_HASHSIZE);
 
 struct symbol *sym_lookup(const char *name, int flags)
···
 	symbol->type = S_UNKNOWN;
 	symbol->flags = flags;
 	INIT_LIST_HEAD(&symbol->menus);
+	INIT_LIST_HEAD(&symbol->choice_link);
 
 	hash_add(sym_hashtable, &symbol->node, hash);