Merge branch 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6

* 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6:
  nconf: handle comment entries within choice/endchoice
  kconfig: fix warning
  kconfig: Make expr_copy() take a const argument
  kconfig: simplify select-with-unmet-direct-dependency warning
  kconfig: add more S_INT and S_HEX consistency checks
  kconfig: fix `zconfdebug' extern declaration
  kconfig/conf: merge duplicate switch's case
  kconfig: fix typos
  kbuild/gconf: add dummy inline for bind_textdomain_codeset()
  kbuild/nconf: fix spaces damage
  kconfig: nuke second argument of conf_write_symbol()
  kconfig: do not define AUTOCONF_INCLUDED
  kconfig: the day kconfig warns about "select"-abuse has come

diff --git a/Documentation/kbuild/kconfig-language.txt b/Documentation/kbuild/kconfig-language.txt
index 2fe93ca..5b9b1be 100644 (file)
--- a/Documentation/kbuild/kconfig-language.txt
+++ b/Documentation/kbuild/kconfig-language.txt
@@ -112,7 +112,6 @@ applicable everywhere (see syntax).
        (no prompts anywhere) and for symbols with no dependencies.
        That will limit the usefulness but on the other hand avoid
        the illegal configurations all over.
-       kconfig should one day warn about such things.
 
 - numerical ranges: "range" <symbol> <symbol> ["if" <expr>]
   This allows to limit the range of possible input values for int

diff --git a/scripts/kconfig/conf.c b/scripts/kconfig/conf.c
index 5459a38..659326c 100644 (file)
--- a/scripts/kconfig/conf.c
+++ b/scripts/kconfig/conf.c
@@ -529,8 +529,6 @@ int main(int ac, char **av)
                }
                break;
        case savedefconfig:
-               conf_read(NULL);
-               break;
        case silentoldconfig:
        case oldaskconfig:
        case oldconfig:

diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index 9df8011..61c35bf 100644 (file)
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -440,12 +440,11 @@ static void conf_write_string(bool headerfile, const char *name,
        fputs("\"\n", out);
 }
 
-static void conf_write_symbol(struct symbol *sym, enum symbol_type type,
-                              FILE *out, bool write_no)
+static void conf_write_symbol(struct symbol *sym, FILE *out, bool write_no)
 {
        const char *str;
 
-       switch (type) {
+       switch (sym->type) {
        case S_BOOLEAN:
        case S_TRISTATE:
                switch (sym_get_tristate_value(sym)) {
@@ -532,7 +531,7 @@ int conf_write_defconfig(const char *filename)
                                                goto next_menu;
                                }
                        }
-                       conf_write_symbol(sym, sym->type, out, true);
+                       conf_write_symbol(sym, out, true);
                }
 next_menu:
                if (menu->list != NULL) {
@@ -561,7 +560,6 @@ int conf_write(const char *name)
        const char *basename;
        const char *str;
        char dirname[PATH_MAX+1], tmpname[PATH_MAX+1], newname[PATH_MAX+1];
-       enum symbol_type type;
        time_t now;
        int use_timestamp = 1;
        char *env;
@@ -633,14 +631,8 @@ int conf_write(const char *name)
                        if (!(sym->flags & SYMBOL_WRITE))
                                goto next;
                        sym->flags &= ~SYMBOL_WRITE;
-                       type = sym->type;
-                       if (type == S_TRISTATE) {
-                               sym_calc_value(modules_sym);
-                               if (modules_sym->curr.tri == no)
-                                       type = S_BOOLEAN;
-                       }
                        /* Write config symbol to file */
-                       conf_write_symbol(sym, type, out, true);
+                       conf_write_symbol(sym, out, true);
                }
 
 next:
@@ -833,8 +825,7 @@ int conf_write_autoconf(void)
                       " * Automatically generated C config: don't edit\n"
                       " * %s\n"
                       " * %s"
-                      " */\n"
-                      "#define AUTOCONF_INCLUDED\n",
+                      " */\n",
                       rootmenu.prompt->text, ctime(&now));
 
        for_all_symbols(i, sym) {
@@ -843,7 +834,7 @@ int conf_write_autoconf(void)
                        continue;
 
                /* write symbol to config file */
-               conf_write_symbol(sym, sym->type, out, false);
+               conf_write_symbol(sym, out, false);
 
                /* update autoconf and tristate files */
                switch (sym->type) {
@@ -946,7 +937,7 @@ static void randomize_choice_values(struct symbol *csym)
        int cnt, def;
 
        /*
-        * If choice is mod then we may have more items slected
+        * If choice is mod then we may have more items selected
         * and if no then no-one.
         * In both cases stop.
         */
@@ -1042,10 +1033,10 @@ void conf_set_all_new_symbols(enum conf_def_mode mode)
 
        /*
         * We have different type of choice blocks.
-        * If curr.tri equal to mod then we can select several
+        * If curr.tri equals to mod then we can select several
         * choice symbols in one block.
         * In this case we do nothing.
-        * If curr.tri equal yes then only one symbol can be
+        * If curr.tri equals yes then only one symbol can be
         * selected in a choice block and we set it to yes,
         * and the rest to no.
         */

diff --git a/scripts/kconfig/expr.c b/scripts/kconfig/expr.c
index 330e7c0..0010034 100644 (file)
--- 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;
 
@@ -1013,6 +1013,48 @@ int expr_compare_type(enum expr_type t1, enum expr_type t2)
 #endif
 }
 
+static inline struct expr *
+expr_get_leftmost_symbol(const struct expr *e)
+{
+
+       if (e == NULL)
+               return NULL;
+
+       while (e->type != E_SYMBOL)
+               e = e->left.expr;
+
+       return expr_copy(e);
+}
+
+/*
+ * Given expression `e1' and `e2', returns the leaf of the longest
+ * sub-expression of `e1' not containing 'e2.
+ */
+struct expr *expr_simplify_unmet_dep(struct expr *e1, struct expr *e2)
+{
+       struct expr *ret;
+
+       switch (e1->type) {
+       case E_OR:
+               return expr_alloc_and(
+                   expr_simplify_unmet_dep(e1->left.expr, e2),
+                   expr_simplify_unmet_dep(e1->right.expr, e2));
+       case E_AND: {
+               struct expr *e;
+               e = expr_alloc_and(expr_copy(e1), expr_copy(e2));
+               e = expr_eliminate_dups(e);
+               ret = (!expr_eq(e, e1)) ? e1 : NULL;
+               expr_free(e);
+               break;
+               }
+       default:
+               ret = e1;
+               break;
+       }
+
+       return expr_get_leftmost_symbol(ret);
+}
+
 void expr_print(struct expr *e, void (*fn)(void *, struct symbol *, const char *), void *data, int prevtoken)
 {
        if (!e) {

diff --git a/scripts/kconfig/expr.h b/scripts/kconfig/expr.h
index e57826c..3d238db 100644 (file)
--- a/scripts/kconfig/expr.h
+++ b/scripts/kconfig/expr.h
@@ -192,7 +192,7 @@ 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);
@@ -207,6 +207,7 @@ struct expr *expr_extract_eq_and(struct expr **ep1, struct expr **ep2);
 struct expr *expr_extract_eq_or(struct expr **ep1, struct expr **ep2);
 void expr_extract_eq(enum expr_type type, struct expr **ep, struct expr **ep1, struct expr **ep2);
 struct expr *expr_trans_compare(struct expr *e, enum expr_type type, struct symbol *sym);
+struct expr *expr_simplify_unmet_dep(struct expr *e1, struct expr *e2);
 
 void expr_fprint(struct expr *e, FILE *out);
 struct gstr; /* forward */

diff --git a/scripts/kconfig/lkc.h b/scripts/kconfig/lkc.h
index 3f7240d..febf0c9 100644 (file)
--- a/scripts/kconfig/lkc.h
+++ b/scripts/kconfig/lkc.h
@@ -14,6 +14,7 @@
 static inline const char *gettext(const char *txt) { return txt; }
 static inline void textdomain(const char *domainname) {}
 static inline void bindtextdomain(const char *name, const char *dir) {}
+static inline char *bind_textdomain_codeset(const char *dn, char *c) { return c; }
 #endif
 
 #ifdef __cplusplus
@@ -67,10 +68,12 @@ struct kconf_id {
        enum symbol_type stype;
 };
 
+#ifdef YYDEBUG
+extern int zconfdebug;
+#endif
+
 int zconfparse(void);
 void zconfdump(FILE *out);
-
-extern int zconfdebug;
 void zconf_starthelp(void);
 FILE *zconf_fopen(const char *name);
 void zconf_initscan(const char *name);

diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c
index 5f77dcb..5fdf10d 100644 (file)
--- a/scripts/kconfig/menu.c
+++ b/scripts/kconfig/menu.c
@@ -203,7 +203,7 @@ void menu_add_option(int token, char *arg)
        }
 }
 
-static int menu_range_valid_sym(struct symbol *sym, struct symbol *sym2)
+static int menu_validate_number(struct symbol *sym, struct symbol *sym2)
 {
        return sym2->type == S_INT || sym2->type == S_HEX ||
               (sym2->type == S_UNKNOWN && sym_string_valid(sym, sym2->name));
@@ -221,6 +221,15 @@ static void sym_check_prop(struct symbol *sym)
                                prop_warn(prop,
                                    "default for config symbol '%s'"
                                    " must be a single symbol", sym->name);
+                       if (prop->expr->type != E_SYMBOL)
+                               break;
+                       sym2 = prop_get_symbol(prop);
+                       if (sym->type == S_HEX || sym->type == S_INT) {
+                               if (!menu_validate_number(sym, sym2))
+                                       prop_warn(prop,
+                                           "'%s': number is invalid",
+                                           sym->name);
+                       }
                        break;
                case P_SELECT:
                        sym2 = prop_get_symbol(prop);
@@ -240,8 +249,8 @@ static void sym_check_prop(struct symbol *sym)
                        if (sym->type != S_INT && sym->type != S_HEX)
                                prop_warn(prop, "range is only allowed "
                                                "for int or hex symbols");
-                       if (!menu_range_valid_sym(sym, prop->expr->left.sym) ||
-                           !menu_range_valid_sym(sym, prop->expr->right.sym))
+                       if (!menu_validate_number(sym, prop->expr->left.sym) ||
+                           !menu_validate_number(sym, prop->expr->right.sym))
                                prop_warn(prop, "range is invalid");
                        break;
                default:

diff --git a/scripts/kconfig/nconf.c b/scripts/kconfig/nconf.c
index 272a987..db56377 100644 (file)
--- a/scripts/kconfig/nconf.c
+++ b/scripts/kconfig/nconf.c
@@ -248,7 +248,7 @@ search_help[] = N_(
 "Only relevant lines are shown.\n"
 "\n\n"
 "Search examples:\n"
-"Examples: USB   = > find all symbols containing USB\n"
+"Examples: USB  => find all symbols containing USB\n"
 "          ^USB => find all symbols starting with USB\n"
 "          USB$ => find all symbols ending with USB\n"
 "\n");
@@ -1266,9 +1266,13 @@ static void conf_choice(struct menu *menu)
                        if (child->sym == sym_get_choice_value(menu->sym))
                                item_make(child, ':', "<X> %s",
                                                _(menu_get_prompt(child)));
-                       else
+                       else if (child->sym)
                                item_make(child, ':', "    %s",
                                                _(menu_get_prompt(child)));
+                       else
+                               item_make(child, ':', "*** %s ***",
+                                               _(menu_get_prompt(child)));
+
                        if (child->sym == active){
                                last_top_row = top_row(curses_menu);
                                selected_index = i;
@@ -1334,7 +1338,7 @@ static void conf_choice(struct menu *menu)
                        break;
 
                child = item_data();
-               if (!child || !menu_is_visible(child))
+               if (!child || !menu_is_visible(child) || !child->sym)
                        continue;
                switch (res) {
                case ' ':

diff --git a/scripts/kconfig/symbol.c b/scripts/kconfig/symbol.c
index af6e9f3..a796c95 100644 (file)
--- a/scripts/kconfig/symbol.c
+++ b/scripts/kconfig/symbol.c
@@ -351,12 +351,16 @@ void sym_calc_value(struct symbol *sym)
                        }
                calc_newval:
                        if (sym->dir_dep.tri == no && sym->rev_dep.tri != no) {
+                               struct expr *e;
+                               e = expr_simplify_unmet_dep(sym->rev_dep.expr,
+                                   sym->dir_dep.expr);
                                fprintf(stderr, "warning: (");
-                               expr_fprint(sym->rev_dep.expr, stderr);
+                               expr_fprint(e, stderr);
                                fprintf(stderr, ") selects %s which has unmet direct dependencies (",
                                        sym->name);
                                expr_fprint(sym->dir_dep.expr, stderr);
                                fprintf(stderr, ")\n");
+                               expr_free(e);
                        }
                        newval.tri = EXPR_OR(newval.tri, sym->rev_dep.tri);
                }
@@ -686,7 +690,7 @@ const char *sym_get_string_default(struct symbol *sym)
                switch (sym->type) {
                case S_BOOLEAN:
                case S_TRISTATE:
-                       /* The visibility imay limit the value from yes => mod */
+                       /* The visibility may limit the value from yes => mod */
                        val = EXPR_AND(expr_calc_value(prop->expr), prop->visible.tri);
                        break;
                default: