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:
kconfig: Fix warning: ignoring return value of 'fgets'
kconfig: Fix warning: ignoring return value of 'fwrite'
nconfig: Fix segfault when menu is empty
kconfig: fix tristate choice with minimal config
kconfig: fix savedefconfig for tristate choices
diff --git a/scripts/kconfig/conf.c b/scripts/kconfig/conf.c
index 274f271..5b7c86e 100644
--- a/scripts/kconfig/conf.c
+++ b/scripts/kconfig/conf.c
@@ -108,7 +108,7 @@
check_stdin();
case oldaskconfig:
fflush(stdout);
- fgets(line, 128, stdin);
+ xfgets(line, 128, stdin);
return 1;
default:
break;
@@ -306,7 +306,7 @@
check_stdin();
case oldaskconfig:
fflush(stdout);
- fgets(line, 128, stdin);
+ xfgets(line, 128, stdin);
strip(line);
if (line[0] == '?') {
print_help(menu);
@@ -644,3 +644,14 @@
}
return 0;
}
+/*
+ * Helper function to facilitate fgets() by Jean Sacren.
+ */
+void xfgets(str, size, in)
+ char *str;
+ int size;
+ FILE *in;
+{
+ if (fgets(str, size, in) == NULL)
+ fprintf(stderr, "\nError in reading or end of file.\n");
+}
diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index f81f263..c39327e 100644
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -412,7 +412,7 @@
while (1) {
l = strcspn(str, "\"\\");
if (l) {
- fwrite(str, l, 1, out);
+ xfwrite(str, l, 1, out);
str += l;
}
if (!*str)
@@ -497,7 +497,7 @@
/*
* If symbol is a choice value and equals to the
* default for a choice - skip.
- * But only if value equal to "y".
+ * But only if value is bool and equal to "y" .
*/
if (sym_is_choice_value(sym)) {
struct symbol *cs;
@@ -506,9 +506,8 @@
cs = prop_get_symbol(sym_get_choice_prop(sym));
ds = sym_choice_default(cs);
if (sym == ds) {
- if ((sym->type == S_BOOLEAN ||
- sym->type == S_TRISTATE) &&
- sym_get_tristate_value(sym) == yes)
+ if ((sym->type == S_BOOLEAN) &&
+ sym_get_tristate_value(sym) == yes)
goto next_menu;
}
}
@@ -919,13 +918,73 @@
conf_changed_callback = fn;
}
+static void randomize_choice_values(struct symbol *csym)
+{
+ struct property *prop;
+ struct symbol *sym;
+ struct expr *e;
+ int cnt, def;
+
+ /*
+ * If choice is mod then we may have more items slected
+ * and if no then no-one.
+ * In both cases stop.
+ */
+ if (csym->curr.tri != yes)
+ return;
+
+ prop = sym_get_choice_prop(csym);
+
+ /* count entries in choice block */
+ cnt = 0;
+ expr_list_for_each_sym(prop->expr, e, sym)
+ cnt++;
+
+ /*
+ * find a random value and set it to yes,
+ * set the rest to no so we have only one set
+ */
+ def = (rand() % cnt);
+
+ cnt = 0;
+ expr_list_for_each_sym(prop->expr, e, sym) {
+ if (def == cnt++) {
+ sym->def[S_DEF_USER].tri = yes;
+ csym->def[S_DEF_USER].val = sym;
+ }
+ else {
+ sym->def[S_DEF_USER].tri = no;
+ }
+ }
+ csym->flags |= SYMBOL_DEF_USER;
+ /* clear VALID to get value calculated */
+ csym->flags &= ~(SYMBOL_VALID);
+}
+
+static void set_all_choice_values(struct symbol *csym)
+{
+ struct property *prop;
+ struct symbol *sym;
+ struct expr *e;
+
+ prop = sym_get_choice_prop(csym);
+
+ /*
+ * Set all non-assinged choice values to no
+ */
+ expr_list_for_each_sym(prop->expr, e, sym) {
+ if (!sym_has_value(sym))
+ sym->def[S_DEF_USER].tri = no;
+ }
+ csym->flags |= SYMBOL_DEF_USER;
+ /* clear VALID to get value calculated */
+ csym->flags &= ~(SYMBOL_VALID);
+}
void conf_set_all_new_symbols(enum conf_def_mode mode)
{
struct symbol *sym, *csym;
- struct property *prop;
- struct expr *e;
- int i, cnt, def;
+ int i, cnt;
for_all_symbols(i, sym) {
if (sym_has_value(sym))
@@ -961,8 +1020,6 @@
sym_clear_all_valid();
- if (mode != def_random)
- return;
/*
* We have different type of choice blocks.
* If curr.tri equal to mod then we can select several
@@ -977,35 +1034,9 @@
continue;
sym_calc_value(csym);
-
- if (csym->curr.tri != yes)
- continue;
-
- prop = sym_get_choice_prop(csym);
-
- /* count entries in choice block */
- cnt = 0;
- expr_list_for_each_sym(prop->expr, e, sym)
- cnt++;
-
- /*
- * find a random value and set it to yes,
- * set the rest to no so we have only one set
- */
- def = (rand() % cnt);
-
- cnt = 0;
- expr_list_for_each_sym(prop->expr, e, sym) {
- if (def == cnt++) {
- sym->def[S_DEF_USER].tri = yes;
- csym->def[S_DEF_USER].val = sym;
- }
- else {
- sym->def[S_DEF_USER].tri = no;
- }
- }
- csym->flags |= SYMBOL_DEF_USER;
- /* clear VALID to get value calculated */
- csym->flags &= ~(SYMBOL_VALID);
+ if (mode == def_random)
+ randomize_choice_values(csym);
+ else
+ set_all_choice_values(csym);
}
}
diff --git a/scripts/kconfig/expr.c b/scripts/kconfig/expr.c
index 8f18e37..330e7c0 100644
--- a/scripts/kconfig/expr.c
+++ b/scripts/kconfig/expr.c
@@ -1087,7 +1087,7 @@
static void expr_print_file_helper(void *data, struct symbol *sym, const char *str)
{
- fwrite(str, strlen(str), 1, data);
+ xfwrite(str, strlen(str), 1, data);
}
void expr_fprint(struct expr *e, FILE *out)
diff --git a/scripts/kconfig/lkc.h b/scripts/kconfig/lkc.h
index 76db065..bdf71bd 100644
--- a/scripts/kconfig/lkc.h
+++ b/scripts/kconfig/lkc.h
@@ -72,6 +72,9 @@
int zconf_lineno(void);
char *zconf_curname(void);
+/* conf.c */
+void xfgets(char *str, int size, FILE *in);
+
/* confdata.c */
const char *conf_get_configname(void);
const char *conf_get_autoconfig_name(void);
@@ -80,6 +83,13 @@
void sym_add_change_count(int count);
void conf_set_all_new_symbols(enum conf_def_mode mode);
+/* confdata.c and expr.c */
+static inline void xfwrite(const void *str, size_t len, size_t count, FILE *out)
+{
+ if (fwrite(str, len, count, out) < count)
+ fprintf(stderr, "\nError in writing or end of file.\n");
+}
+
/* kconfig_load.c */
void kconfig_load(void);
diff --git a/scripts/kconfig/nconf.c b/scripts/kconfig/nconf.c
index 762caf8..2ba71bc 100644
--- a/scripts/kconfig/nconf.c
+++ b/scripts/kconfig/nconf.c
@@ -676,6 +676,8 @@
struct mitem *mcur;
cur = current_item(curses_menu);
+ if (!cur)
+ return NULL;
mcur = (struct mitem *) item_userptr(cur);
return mcur->usrptr;