kconfig: sync with Linux 4.1

Update the files under scripts/kconfig/ to match Linux 4.1.
Some Kconfig sources have diverged from those in the kernel,
so commit-base syncing was done not to lose U-Boot specific updates.

The commits cherry-picked from Linux are:

[1] commit be8af2d54a66911693eddc556e4f7a866670082b
    Author: Bjørn Forsman <bjorn.forsman@gmail.com>
    kconfig/lxdialog: get ncurses CFLAGS with pkg-config

[2] commit 3943f42c11896ce82ad3da132c8a5630313bdd0e
    Author: Andrey Utkin <andrey.krieger.utkin@gmail.com>
    Replace mentions of "list_struct" to "list_head"

[3] commit e4e458b45c5861808674eebfea94cee2258bb2ea
    Author: Arjun Sreedharan <arjun024@gmail.com>
    calloc/xcalloc: Fix argument order

[4] commit 09950bc256e3628d275f90e016e6f5a039fbdcab
    Author: Olof Johansson <olof@lixom.net>
    merge_config.sh: Display usage if given too few arguments

[5] commit b6a2ab2cd4739a9573ed41677e53171987b8da34
    Author: Colin Ian King <colin.king@canonical.com>
    kconfig: use va_end to match corresponding va_start

[6] commit 70529b1a1784503169416df19ce3d68746401340
    Author: Michal Marek <mmarek@suse.cz>
    kconfig: Get rid of the P() macro in headers

[7] commit 463157444e377bf9b279101b1f16a94c4648c03a
    Author: Michal Marek <mmarek@suse.cz>
    kconfig: Remove dead code

[8] commit ad8d40cda3ad22ad9e8863d55a5c88f85c0173f0
    Author: Michal Marek <mmarek@suse.cz>
    kconfig: Remove unnecessary prototypes from headers

[9] commit de4619937229378e81f95e99c9866acc8e207d34
    Author: Masahiro Yamada <yamada.masahiro@socionext.com>
    kbuild: mergeconfig: fix "jobserver unavailable" warning

[10] commit b9fe99c5b994c6ddc57780993966b18899526c0b
    Author: Masahiro Yamada <yamada.masahiro@socionext.com>
    kbuild: mergeconfig: move an error check to merge_config.sh

[11] commit 371cfd4ff0611d8bc5d18bbb9cc6a2bc3d56cd3d
    Author: Masahiro Yamada <yamada.masahiro@socionext.com>
    kbuild: mergeconfig: remove redundant $(objtree)

[12] commit 3a975b8cfcbe026b535f83bde9a3c009bae214f9
    Author: Masahiro Yamada <yamada.masahiro@socionext.com>
    merge_config.sh: improve indentation

[13] commit bc8f8f5fc47cd02c2c5f3580dac2fe6695af1edd
    Author: Masahiro Yamada <yamada.masahiro@socionext.com>
    merge_config.sh: rename MAKE to RUNMAKE

[14] commit 63a91033d52e64a22e571fe84924c0b7f21c280d
    Author: Masahiro Yamada <yamada.masahiro@socionext.com>
    kbuild: add generic mergeconfig target, %.config

[15] commit 1cba0c305758c3c1786ecaceb03e142c95a4edc9
    Author: Michal Marek <mmarek@suse.cz>
    kconfig: Simplify Makefile

[16] commit 0a1f00a1c86421cc07cec87011c7cf4df68ee54b
    Author: Michal Marek <mmarek@suse.cz>
    kconfig: Do not print status messages in make -s mode

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Bjørn Forsman <bjorn.forsman@gmail.com>
Signed-off-by: Andrey Utkin <andrey.krieger.utkin@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Arjun Sreedharan <arjun024@gmail.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>

17 files changed, 189 insertions, 203 deletions

diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index ff4ce6e92cb..46ddf2d6bd3 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -2,7 +2,7 @@
 # Kernel configuration targets
 # These targets are used from top-level makefile
 
-PHONY += oldconfig xconfig gconfig menuconfig config silentoldconfig update-po-config \
+PHONY += xconfig gconfig menuconfig config silentoldconfig update-po-config \
 	localmodconfig localyesconfig
 
 # Added for U-Boot
@@ -17,30 +17,31 @@ else
 Kconfig := Kconfig
 endif
 
+ifeq ($(quiet),silent_)
+silent := -s
+endif
+
 # We need this, in case the user has it in its environment
 unexport CONFIG_
 
 xconfig: $(obj)/qconf
-	$< $(Kconfig)
+	$< $(silent) $(Kconfig)
 
 gconfig: $(obj)/gconf
-	$< $(Kconfig)
+	$< $(silent) $(Kconfig)
 
 menuconfig: $(obj)/mconf
-	$< $(Kconfig)
+	$< $(silent) $(Kconfig)
 
 config: $(obj)/conf
-	$< --oldaskconfig $(Kconfig)
+	$< $(silent) --oldaskconfig $(Kconfig)
 
 nconfig: $(obj)/nconf
-	$< $(Kconfig)
-
-oldconfig: $(obj)/conf
-	$< --$@ $(Kconfig)
+	$< $(silent) $(Kconfig)
 
 silentoldconfig: $(obj)/conf
 	$(Q)mkdir -p include/config include/generated
-	$< --$@ $(Kconfig)
+	$< $(silent) --$@ $(Kconfig)
 
 localyesconfig localmodconfig: $(obj)/streamline_config.pl $(obj)/conf
 	$(Q)mkdir -p include/config include/generated
@@ -49,18 +50,18 @@ localyesconfig localmodconfig: $(obj)/streamline_config.pl $(obj)/conf
 			cmp -s .tmp.config .config ||			\
 			(mv -f .config .config.old.1;			\
 			 mv -f .tmp.config .config;			\
-			 $(obj)/conf --silentoldconfig $(Kconfig);	\
+			 $(obj)/conf $(silent) --silentoldconfig $(Kconfig); \
 			 mv -f .config.old.1 .config.old)		\
 	else								\
 			mv -f .tmp.config .config;			\
-			$(obj)/conf --silentoldconfig $(Kconfig);	\
+			$(obj)/conf $(silent) --silentoldconfig $(Kconfig); \
 	fi
 	$(Q)rm -f .tmp.config
 
 # Create new linux.pot file
 # Adjust charset to UTF-8 in .po file to accept UTF-8 in Kconfig files
 update-po-config: $(obj)/kxgettext $(obj)/gconf.glade.h
-	$(Q)echo "  GEN     config.pot"
+	$(Q)$(kecho) "  GEN     config.pot"
 	$(Q)xgettext --default-domain=linux                         \
 	    --add-comments --keyword=_ --keyword=N_                 \
 	    --from-code=UTF-8                                       \
@@ -71,65 +72,62 @@ update-po-config: $(obj)/kxgettext $(obj)/gconf.glade.h
 	$(Q)(for i in `ls $(srctree)/arch/*/Kconfig      \
 	    $(srctree)/arch/*/um/Kconfig`;               \
 	    do                                           \
-		echo "  GEN     $$i";                    \
+		$(kecho) "  GEN     $$i";                    \
 		$(obj)/kxgettext $$i                     \
 		     >> $(obj)/config.pot;               \
 	    done )
-	$(Q)echo "  GEN     linux.pot"
+	$(Q)$(kecho) "  GEN     linux.pot"
 	$(Q)msguniq --sort-by-file --to-code=UTF-8 $(obj)/config.pot \
 	    --output $(obj)/linux.pot
 	$(Q)rm -f $(obj)/config.pot
 
-PHONY += allnoconfig allyesconfig allmodconfig alldefconfig randconfig
+# These targets map 1:1 to the commandline options of 'conf'
+simple-targets := oldconfig allnoconfig allyesconfig allmodconfig \
+	alldefconfig randconfig listnewconfig olddefconfig
+PHONY += $(simple-targets)
 
-allnoconfig allyesconfig allmodconfig alldefconfig randconfig: $(obj)/conf
-	$< --$@ $(Kconfig)
+$(simple-targets): $(obj)/conf
+	$< $(silent) --$@ $(Kconfig)
 
-PHONY += listnewconfig olddefconfig oldnoconfig savedefconfig defconfig
-
-listnewconfig olddefconfig: $(obj)/conf
-	$< --$@ $(Kconfig)
+PHONY += oldnoconfig savedefconfig defconfig
 
 # oldnoconfig is an alias of olddefconfig, because people already are dependent
 # on its behavior(sets new symbols to their default value but not 'n') with the
 # counter-intuitive name.
-oldnoconfig: $(obj)/conf
-	$< --olddefconfig $(Kconfig)
+oldnoconfig: olddefconfig
 
 savedefconfig: $(obj)/conf
-	$< --$@=defconfig $(Kconfig)
+	$< $(silent) --$@=defconfig $(Kconfig)
 
 defconfig: $(obj)/conf
 ifeq ($(KBUILD_DEFCONFIG),)
-	$< --defconfig $(Kconfig)
+	$< $(silent) --defconfig $(Kconfig)
 else
-	@echo "*** Default configuration is based on '$(KBUILD_DEFCONFIG)'"
-	$(Q)$< --defconfig=arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG) $(Kconfig)
+	@$(kecho) "*** Default configuration is based on '$(KBUILD_DEFCONFIG)'"
+	$(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG) $(Kconfig)
 endif
 
 %_defconfig: $(obj)/conf
-	$(Q)$< --defconfig=arch/$(SRCARCH)/configs/$@ $(Kconfig)
+	$(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$@ $(Kconfig)
 
 # Added for U-Boot (backward compatibility)
 %_config: %_defconfig
 	@:
 
-configfiles=$(wildcard $(srctree)/kernel/configs/$(1).config $(srctree)/arch/$(SRCARCH)/configs/$(1).config)
+configfiles=$(wildcard $(srctree)/kernel/configs/$@ $(srctree)/arch/$(SRCARCH)/configs/$@)
 
-define mergeconfig
-$(if $(wildcard $(objtree)/.config),, $(error You need an existing .config for this target))
-$(if $(call configfiles,$(1)),, $(error No configuration exists for this target on this architecture))
-$(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m -O $(objtree) $(objtree)/.config $(call configfiles,$(1))
-$(Q)yes "" | $(MAKE) -f $(srctree)/Makefile oldconfig
-endef
+%.config: $(obj)/conf
+	$(if $(call configfiles),, $(error No configuration exists for this target on this architecture))
+	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m .config $(configfiles)
+	+$(Q)yes "" | $(MAKE) -f $(srctree)/Makefile oldconfig
 
 PHONY += kvmconfig
-kvmconfig:
-	$(call mergeconfig,kvm_guest)
+kvmconfig: kvm_guest.config
+	@:
 
 PHONY += tinyconfig
-tinyconfig: allnoconfig
-	$(call mergeconfig,tiny)
+tinyconfig:
+	$(Q)$(MAKE) -f $(srctree)/Makefile allnoconfig tiny.config
 
 # Help text used by make help
 help:
@@ -231,7 +229,7 @@ $(obj)/.tmp_qtcheck: $(src)/Makefile
 
 # QT needs some extra effort...
 $(obj)/.tmp_qtcheck:
-	@set -e; echo "  CHECK   qt"; dir=""; pkg=""; \
+	@set -e; $(kecho) "  CHECK   qt"; dir=""; pkg=""; \
 	if ! pkg-config --exists QtCore 2> /dev/null; then \
 	    echo "* Unable to find the QT4 tool qmake. Trying to use QT3"; \
 	    pkg-config --exists qt 2> /dev/null && pkg=qt; \
diff --git a/scripts/kconfig/conf.c b/scripts/kconfig/conf.c
index fef75fc756f..6c204318bc9 100644
--- a/scripts/kconfig/conf.c
+++ b/scripts/kconfig/conf.c
@@ -471,7 +471,7 @@ static struct option long_opts[] = {
 static void conf_usage(const char *progname)
 {
 
-	printf("Usage: %s [option] <kconfig-file>\n", progname);
+	printf("Usage: %s [-s] [option] <kconfig-file>\n", progname);
 	printf("[option] is _one_ of the following:\n");
 	printf("  --listnewconfig         List new options\n");
 	printf("  --oldaskconfig          Start a new configuration using a line-oriented program\n");
@@ -501,7 +501,11 @@ int main(int ac, char **av)
 
 	tty_stdio = isatty(0) && isatty(1) && isatty(2);
 
-	while ((opt = getopt_long(ac, av, "", long_opts, NULL)) != -1) {
+	while ((opt = getopt_long(ac, av, "s", long_opts, NULL)) != -1) {
+		if (opt == 's') {
+			conf_set_message_callback(NULL);
+			continue;
+		}
 		input_mode = (enum input_mode)opt;
 		switch (opt) {
 		case silentoldconfig:
diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index 2f778df206f..9847ae6c894 100644
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -16,6 +16,11 @@
 
 #include "lkc.h"
 
+struct conf_printer {
+	void (*print_symbol)(FILE *, struct symbol *, const char *, void *);
+	void (*print_comment)(FILE *, const char *, void *);
+};
+
 static void conf_warning(const char *fmt, ...)
 	__attribute__ ((format (printf, 1, 2)));
 
@@ -59,6 +64,7 @@ static void conf_message(const char *fmt, ...)
 	va_start(ap, fmt);
 	if (conf_message_callback)
 		conf_message_callback(fmt, ap);
+	va_end(ap);
 }
 
 const char *conf_get_configname(void)
diff --git a/scripts/kconfig/expr.c b/scripts/kconfig/expr.c
index d6626521f9b..fb0a2a286dc 100644
--- a/scripts/kconfig/expr.c
+++ b/scripts/kconfig/expr.c
@@ -11,6 +11,12 @@
 
 #define DEBUG_EXPR	0
 
+static int expr_eq(struct expr *e1, struct expr *e2);
+static struct expr *expr_eliminate_yn(struct expr *e);
+static struct expr *expr_extract_eq_and(struct expr **ep1, struct expr **ep2);
+static struct expr *expr_extract_eq_or(struct expr **ep1, struct expr **ep2);
+static void expr_extract_eq(enum expr_type type, struct expr **ep, struct expr **ep1, struct expr **ep2);
+
 struct expr *expr_alloc_symbol(struct symbol *sym)
 {
 	struct expr *e = xcalloc(1, sizeof(*e));
@@ -186,7 +192,7 @@ void expr_eliminate_eq(struct expr **ep1, struct expr **ep2)
 #undef e1
 #undef e2
 
-int expr_eq(struct expr *e1, struct expr *e2)
+static int expr_eq(struct expr *e1, struct expr *e2)
 {
 	int res, old_count;
 
@@ -228,7 +234,7 @@ int expr_eq(struct expr *e1, struct expr *e2)
 	return 0;
 }
 
-struct expr *expr_eliminate_yn(struct expr *e)
+static struct expr *expr_eliminate_yn(struct expr *e)
 {
 	struct expr *tmp;
 
@@ -823,7 +829,7 @@ bool expr_depends_symbol(struct expr *dep, struct symbol *sym)
  	return false;
 }
 
-struct expr *expr_extract_eq_and(struct expr **ep1, struct expr **ep2)
+static struct expr *expr_extract_eq_and(struct expr **ep1, struct expr **ep2)
 {
 	struct expr *tmp = NULL;
 	expr_extract_eq(E_AND, &tmp, ep1, ep2);
@@ -834,7 +840,7 @@ struct expr *expr_extract_eq_and(struct expr **ep1, struct expr **ep2)
 	return tmp;
 }
 
-struct expr *expr_extract_eq_or(struct expr **ep1, struct expr **ep2)
+static struct expr *expr_extract_eq_or(struct expr **ep1, struct expr **ep2)
 {
 	struct expr *tmp = NULL;
 	expr_extract_eq(E_OR, &tmp, ep1, ep2);
@@ -845,7 +851,7 @@ struct expr *expr_extract_eq_or(struct expr **ep1, struct expr **ep2)
 	return tmp;
 }
 
-void expr_extract_eq(enum expr_type type, struct expr **ep, struct expr **ep1, struct expr **ep2)
+static void expr_extract_eq(enum expr_type type, struct expr **ep, struct expr **ep1, struct expr **ep2)
 {
 #define e1 (*ep1)
 #define e2 (*ep2)
@@ -976,11 +982,8 @@ tristate expr_calc_value(struct expr *e)
 	}
 }
 
-int expr_compare_type(enum expr_type t1, enum expr_type t2)
+static int expr_compare_type(enum expr_type t1, enum expr_type t2)
 {
-#if 0
-	return 1;
-#else
 	if (t1 == t2)
 		return 0;
 	switch (t1) {
@@ -1005,7 +1008,6 @@ int expr_compare_type(enum expr_type t1, enum expr_type t2)
 	}
 	printf("[%dgt%d?]", t1, t2);
 	return 0;
-#endif
 }
 
 static inline struct expr *
diff --git a/scripts/kconfig/expr.h b/scripts/kconfig/expr.h
index 412ea8a2abb..a2fc96a2bd2 100644
--- a/scripts/kconfig/expr.h
+++ b/scripts/kconfig/expr.h
@@ -205,18 +205,13 @@ 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(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);
 tristate expr_calc_value(struct expr *e);
-struct expr *expr_eliminate_yn(struct expr *e);
 struct expr *expr_trans_bool(struct expr *e);
 struct expr *expr_eliminate_dups(struct expr *e);
 struct expr *expr_transform(struct expr *e);
 int expr_contains_symbol(struct expr *dep, struct symbol *sym);
 bool expr_depends_symbol(struct expr *dep, struct symbol *sym);
-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);
 
diff --git a/scripts/kconfig/gconf.c b/scripts/kconfig/gconf.c
index d0a35b21f30..26d208b435a 100644
--- a/scripts/kconfig/gconf.c
+++ b/scripts/kconfig/gconf.c
@@ -169,14 +169,6 @@ void init_main_window(const gchar * glade_file)
 	style = gtk_widget_get_style(main_wnd);
 	widget = glade_xml_get_widget(xml, "toolbar1");
 
-#if 0	/* Use stock Gtk icons instead */
-	replace_button_icon(xml, main_wnd->window, style,
-			    "button1", (gchar **) xpm_back);
-	replace_button_icon(xml, main_wnd->window, style,
-			    "button2", (gchar **) xpm_load);
-	replace_button_icon(xml, main_wnd->window, style,
-			    "button3", (gchar **) xpm_save);
-#endif
 	replace_button_icon(xml, main_wnd->window, style,
 			    "button4", (gchar **) xpm_single_view);
 	replace_button_icon(xml, main_wnd->window, style,
@@ -184,22 +176,6 @@ void init_main_window(const gchar * glade_file)
 	replace_button_icon(xml, main_wnd->window, style,
 			    "button6", (gchar **) xpm_tree_view);
 
-#if 0
-	switch (view_mode) {
-	case SINGLE_VIEW:
-		widget = glade_xml_get_widget(xml, "button4");
-		g_signal_emit_by_name(widget, "clicked");
-		break;
-	case SPLIT_VIEW:
-		widget = glade_xml_get_widget(xml, "button5");
-		g_signal_emit_by_name(widget, "clicked");
-		break;
-	case FULL_VIEW:
-		widget = glade_xml_get_widget(xml, "button6");
-		g_signal_emit_by_name(widget, "clicked");
-		break;
-	}
-#endif
 	txtbuf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text_w));
 	tag1 = gtk_text_buffer_create_tag(txtbuf, "mytag1",
 					  "foreground", "red",
@@ -1498,9 +1474,12 @@ int main(int ac, char *av[])
 		case 'a':
 			//showAll = 1;
 			break;
+		case 's':
+			conf_set_message_callback(NULL);
+			break;
 		case 'h':
 		case '?':
-			printf("%s <config>\n", av[0]);
+			printf("%s [-s] <config>\n", av[0]);
 			exit(0);
 		}
 		name = av[2];
diff --git a/scripts/kconfig/list.h b/scripts/kconfig/list.h
index 685d80e1bb0..2cf23f002d3 100644
--- a/scripts/kconfig/list.h
+++ b/scripts/kconfig/list.h
@@ -34,7 +34,7 @@ struct list_head {
  * list_entry - get the struct for this entry
  * @ptr:	the &struct list_head pointer.
  * @type:	the type of the struct this is embedded in.
- * @member:	the name of the list_struct within the struct.
+ * @member:	the name of the list_head within the struct.
  */
 #define list_entry(ptr, type, member) \
 	container_of(ptr, type, member)
@@ -43,7 +43,7 @@ struct list_head {
  * list_for_each_entry	-	iterate over list of given type
  * @pos:	the type * to use as a loop cursor.
  * @head:	the head for your list.
- * @member:	the name of the list_struct within the struct.
+ * @member:	the name of the list_head within the struct.
  */
 #define list_for_each_entry(pos, head, member)				\
 	for (pos = list_entry((head)->next, typeof(*pos), member);	\
@@ -55,7 +55,7 @@ struct list_head {
  * @pos:	the type * to use as a loop cursor.
  * @n:		another type * to use as temporary storage
  * @head:	the head for your list.
- * @member:	the name of the list_struct within the struct.
+ * @member:	the name of the list_head within the struct.
  */
 #define list_for_each_entry_safe(pos, n, head, member)			\
 	for (pos = list_entry((head)->next, typeof(*pos), member),	\
diff --git a/scripts/kconfig/lkc.h b/scripts/kconfig/lkc.h
index d5daa7af8b4..91ca126ea08 100644
--- a/scripts/kconfig/lkc.h
+++ b/scripts/kconfig/lkc.h
@@ -21,9 +21,7 @@ static inline char *bind_textdomain_codeset(const char *dn, char *c) { return c;
 extern "C" {
 #endif
 
-#define P(name,type,arg)	extern type name arg
 #include "lkc_proto.h"
-#undef P
 
 #define SRCTREE "srctree"
 
@@ -70,9 +68,6 @@ struct kconf_id {
 	enum symbol_type stype;
 };
 
-extern int zconfdebug;
-
-int zconfparse(void);
 void zconfdump(FILE *out);
 void zconf_starthelp(void);
 FILE *zconf_fopen(const char *name);
@@ -90,11 +85,6 @@ void sym_add_change_count(int count);
 bool conf_set_all_new_symbols(enum conf_def_mode mode);
 void set_all_choice_values(struct symbol *csym);
 
-struct conf_printer {
-	void (*print_symbol)(FILE *, struct symbol *, const char *, void *);
-	void (*print_comment)(FILE *, const char *, void *);
-};
-
 /* confdata.c and expr.c */
 static inline void xfwrite(const void *str, size_t len, size_t count, FILE *out)
 {
@@ -113,7 +103,6 @@ void menu_add_entry(struct symbol *sym);
 void menu_end_entry(void);
 void menu_add_dep(struct expr *dep);
 void menu_add_visibility(struct expr *dep);
-struct property *menu_add_prop(enum prop_type type, char *prompt, struct expr *expr, struct expr *dep);
 struct property *menu_add_prompt(enum prop_type type, char *prompt, struct expr *dep);
 void menu_add_expr(enum prop_type type, struct expr *expr, struct expr *dep);
 void menu_add_symbol(enum prop_type type, struct symbol *sym, struct expr *dep);
@@ -137,7 +126,6 @@ struct gstr {
 	int max_width;
 };
 struct gstr str_new(void);
-struct gstr str_assign(const char *s);
 void str_free(struct gstr *gs);
 void str_append(struct gstr *gs, const char *s);
 void str_printf(struct gstr *gs, const char *fmt, ...);
@@ -148,8 +136,6 @@ extern struct expr *sym_env_list;
 
 void sym_init(void);
 void sym_clear_all_valid(void);
-void sym_set_all_changed(void);
-void sym_set_changed(struct symbol *sym);
 struct symbol *sym_choice_default(struct symbol *sym);
 const char *sym_get_string_default(struct symbol *sym);
 struct symbol *sym_check_deps(struct symbol *sym);
diff --git a/scripts/kconfig/lkc_proto.h b/scripts/kconfig/lkc_proto.h
index ecdb9659b67..d5398718ec2 100644
--- a/scripts/kconfig/lkc_proto.h
+++ b/scripts/kconfig/lkc_proto.h
@@ -1,57 +1,52 @@
 #include <stdarg.h>
 
 /* confdata.c */
-P(conf_parse,void,(const char *name));
-P(conf_read,int,(const char *name));
-P(conf_read_simple,int,(const char *name, int));
-P(conf_write_defconfig,int,(const char *name));
-P(conf_write,int,(const char *name));
-P(conf_write_autoconf,int,(void));
-P(conf_get_changed,bool,(void));
-P(conf_set_changed_callback, void,(void (*fn)(void)));
-P(conf_set_message_callback, void,(void (*fn)(const char *fmt, va_list ap)));
+void conf_parse(const char *name);
+int conf_read(const char *name);
+int conf_read_simple(const char *name, int);
+int conf_write_defconfig(const char *name);
+int conf_write(const char *name);
+int conf_write_autoconf(void);
+bool conf_get_changed(void);
+void conf_set_changed_callback(void (*fn)(void));
+void conf_set_message_callback(void (*fn)(const char *fmt, va_list ap));
 
 /* menu.c */
-P(rootmenu,struct menu,);
+extern struct menu rootmenu;
 
-P(menu_is_empty, bool, (struct menu *menu));
-P(menu_is_visible, bool, (struct menu *menu));
-P(menu_has_prompt, bool, (struct menu *menu));
-P(menu_get_prompt,const char *,(struct menu *menu));
-P(menu_get_root_menu,struct menu *,(struct menu *menu));
-P(menu_get_parent_menu,struct menu *,(struct menu *menu));
-P(menu_has_help,bool,(struct menu *menu));
-P(menu_get_help,const char *,(struct menu *menu));
-P(get_symbol_str, void, (struct gstr *r, struct symbol *sym, struct list_head
-			 *head));
-P(get_relations_str, struct gstr, (struct symbol **sym_arr, struct list_head
-				   *head));
-P(menu_get_ext_help,void,(struct menu *menu, struct gstr *help));
+bool menu_is_empty(struct menu *menu);
+bool menu_is_visible(struct menu *menu);
+bool menu_has_prompt(struct menu *menu);
+const char * menu_get_prompt(struct menu *menu);
+struct menu * menu_get_root_menu(struct menu *menu);
+struct menu * menu_get_parent_menu(struct menu *menu);
+bool menu_has_help(struct menu *menu);
+const char * menu_get_help(struct menu *menu);
+struct gstr get_relations_str(struct symbol **sym_arr, struct list_head *head);
+void menu_get_ext_help(struct menu *menu, struct gstr *help);
 
 /* symbol.c */
-P(symbol_hash,struct symbol *,[SYMBOL_HASHSIZE]);
+extern struct symbol * symbol_hash[SYMBOL_HASHSIZE];
 
-P(sym_lookup,struct symbol *,(const char *name, int flags));
-P(sym_find,struct symbol *,(const char *name));
-P(sym_expand_string_value,const char *,(const char *in));
-P(sym_escape_string_value, const char *,(const char *in));
-P(sym_re_search,struct symbol **,(const char *pattern));
-P(sym_type_name,const char *,(enum symbol_type type));
-P(sym_calc_value,void,(struct symbol *sym));
-P(sym_get_type,enum symbol_type,(struct symbol *sym));
-P(sym_tristate_within_range,bool,(struct symbol *sym,tristate tri));
-P(sym_set_tristate_value,bool,(struct symbol *sym,tristate tri));
-P(sym_toggle_tristate_value,tristate,(struct symbol *sym));
-P(sym_string_valid,bool,(struct symbol *sym, const char *newval));
-P(sym_string_within_range,bool,(struct symbol *sym, const char *str));
-P(sym_set_string_value,bool,(struct symbol *sym, const char *newval));
-P(sym_is_changable,bool,(struct symbol *sym));
-P(sym_get_choice_prop,struct property *,(struct symbol *sym));
-P(sym_get_default_prop,struct property *,(struct symbol *sym));
-P(sym_get_string_value,const char *,(struct symbol *sym));
+struct symbol * sym_lookup(const char *name, int flags);
+struct symbol * sym_find(const char *name);
+const char * sym_expand_string_value(const char *in);
+const char * sym_escape_string_value(const char *in);
+struct symbol ** sym_re_search(const char *pattern);
+const char * sym_type_name(enum symbol_type type);
+void sym_calc_value(struct symbol *sym);
+enum symbol_type sym_get_type(struct symbol *sym);
+bool sym_tristate_within_range(struct symbol *sym,tristate tri);
+bool sym_set_tristate_value(struct symbol *sym,tristate tri);
+tristate sym_toggle_tristate_value(struct symbol *sym);
+bool sym_string_valid(struct symbol *sym, const char *newval);
+bool sym_string_within_range(struct symbol *sym, const char *str);
+bool sym_set_string_value(struct symbol *sym, const char *newval);
+bool sym_is_changable(struct symbol *sym);
+struct property * sym_get_choice_prop(struct symbol *sym);
+const char * sym_get_string_value(struct symbol *sym);
 
-P(prop_get_type_name,const char *,(enum prop_type type));
+const char * prop_get_type_name(enum prop_type type);
 
 /* expr.c */
-P(expr_compare_type,int,(enum expr_type t1, enum expr_type t2));
-P(expr_print,void,(struct expr *e, void (*fn)(void *, struct symbol *, const char *), void *data, int prevtoken));
+void expr_print(struct expr *e, void (*fn)(void *, struct symbol *, const char *), void *data, int prevtoken);
diff --git a/scripts/kconfig/lxdialog/check-lxdialog.sh b/scripts/kconfig/lxdialog/check-lxdialog.sh
index 9d2a4c585ee..5075ebf2d3b 100755
--- a/scripts/kconfig/lxdialog/check-lxdialog.sh
+++ b/scripts/kconfig/lxdialog/check-lxdialog.sh
@@ -21,7 +21,11 @@ ldflags()
 # Where is ncurses.h?
 ccflags()
 {
-	if [ -f /usr/include/ncursesw/curses.h ]; then
+	if pkg-config --cflags ncursesw 2>/dev/null; then
+		echo '-DCURSES_LOC="<ncurses.h>" -DNCURSES_WIDECHAR=1'
+	elif pkg-config --cflags ncurses 2>/dev/null; then
+		echo '-DCURSES_LOC="<ncurses.h>"'
+	elif [ -f /usr/include/ncursesw/curses.h ]; then
 		echo '-I/usr/include/ncursesw -DCURSES_LOC="<curses.h>"'
 		echo ' -DNCURSES_WIDECHAR=1'
 	elif [ -f /usr/include/ncurses/ncurses.h ]; then
diff --git a/scripts/kconfig/mconf.c b/scripts/kconfig/mconf.c
index 14cea7463a6..315ce2c7cb9 100644
--- a/scripts/kconfig/mconf.c
+++ b/scripts/kconfig/mconf.c
@@ -279,6 +279,7 @@ static int child_count;
 static int single_menu_mode;
 static int show_all_options;
 static int save_and_exit;
+static int silent;
 
 static void conf(struct menu *menu, struct menu *active_menu);
 static void conf_choice(struct menu *menu);
@@ -330,10 +331,10 @@ static void set_subtitle(void)
 	list_for_each_entry(sp, &trail, entries) {
 		if (sp->text) {
 			if (pos) {
-				pos->next = xcalloc(sizeof(*pos), 1);
+				pos->next = xcalloc(1, sizeof(*pos));
 				pos = pos->next;
 			} else {
-				subtitles = pos = xcalloc(sizeof(*pos), 1);
+				subtitles = pos = xcalloc(1, sizeof(*pos));
 			}
 			pos->text = sp->text;
 		}
@@ -777,10 +778,12 @@ static void conf_message_callback(const char *fmt, va_list ap)
 	char buf[PATH_MAX+1];
 
 	vsnprintf(buf, sizeof(buf), fmt, ap);
-	if (save_and_exit)
-		printf("%s", buf);
-	else
+	if (save_and_exit) {
+		if (!silent)
+			printf("%s", buf);
+	} else {
 		show_textbox(NULL, buf, 6, 60);
+	}
 }
 
 static void show_help(struct menu *menu)
@@ -977,16 +980,18 @@ static int handle_exit(void)
 		}
 		/* fall through */
 	case -1:
-		printf(_("\n\n"
-			 "*** End of the configuration.\n"
-			 "*** Execute 'make' to start the build or try 'make help'."
-			 "\n\n"));
+		if (!silent)
+			printf(_("\n\n"
+				 "*** End of the configuration.\n"
+				 "*** Execute 'make' to start the build or try 'make help'."
+				 "\n\n"));
 		res = 0;
 		break;
 	default:
-		fprintf(stderr, _("\n\n"
-				  "Your configuration changes were NOT saved."
-				  "\n\n"));
+		if (!silent)
+			fprintf(stderr, _("\n\n"
+					  "Your configuration changes were NOT saved."
+					  "\n\n"));
 		if (res != KEY_ESC)
 			res = 0;
 	}
@@ -1010,6 +1015,12 @@ int main(int ac, char **av)
 
 	signal(SIGINT, sig_handler);
 
+	if (ac > 1 && strcmp(av[1], "-s") == 0) {
+		silent = 1;
+		/* Silence conf_read() until the real callback is set up */
+		conf_set_message_callback(NULL);
+		av++;
+	}
 	conf_parse(av[1]);
 	conf_read(NULL);
 
diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c
index 72c9dba84c5..b05cc3d4a9b 100644
--- a/scripts/kconfig/menu.c
+++ b/scripts/kconfig/menu.c
@@ -125,7 +125,7 @@ void menu_set_type(int type)
 		sym_type_name(sym->type), sym_type_name(type));
 }
 
-struct property *menu_add_prop(enum prop_type type, char *prompt, struct expr *expr, struct expr *dep)
+static struct property *menu_add_prop(enum prop_type type, char *prompt, struct expr *expr, struct expr *dep)
 {
 	struct property *prop = prop_alloc(type, current_entry->sym);
 
@@ -615,7 +615,7 @@ static struct property *get_symbol_prop(struct symbol *sym)
 /*
  * head is optional and may be NULL
  */
-void get_symbol_str(struct gstr *r, struct symbol *sym,
+static void get_symbol_str(struct gstr *r, struct symbol *sym,
 		    struct list_head *head)
 {
 	bool hit;
diff --git a/scripts/kconfig/merge_config.sh b/scripts/kconfig/merge_config.sh
index efa47334619..ec8e20350a6 100755
--- a/scripts/kconfig/merge_config.sh
+++ b/scripts/kconfig/merge_config.sh
@@ -35,7 +35,7 @@ usage() {
 	echo "  -O    dir to put generated output files"
 }
 
-MAKE=true
+RUNMAKE=true
 ALLTARGET=alldefconfig
 WARNREDUN=false
 OUTPUT=.
@@ -48,7 +48,7 @@ while true; do
 		continue
 		;;
 	"-m")
-		MAKE=false
+		RUNMAKE=false
 		shift
 		continue
 		;;
@@ -77,9 +77,19 @@ while true; do
 	esac
 done
 
+if [ "$#" -lt 2 ] ; then
+	usage
+	exit
+fi
+
 INITFILE=$1
 shift;
 
+if [ ! -r "$INITFILE" ]; then
+	echo "The base file '$INITFILE' does not exist.  Exit." >&2
+	exit 1
+fi
+
 MERGE_LIST=$*
 SED_CONFIG_EXP="s/^\(# \)\{0,1\}\(CONFIG_[a-zA-Z0-9_]*\)[= ].*/\2/p"
 TMP_FILE=$(mktemp ./.tmp.config.XXXXXXXXXX)
@@ -93,25 +103,23 @@ for MERGE_FILE in $MERGE_LIST ; do
 	CFG_LIST=$(sed -n "$SED_CONFIG_EXP" $MERGE_FILE)
 
 	for CFG in $CFG_LIST ; do
-		grep -q -w $CFG $TMP_FILE
-		if [ $? -eq 0 ] ; then
-			PREV_VAL=$(grep -w $CFG $TMP_FILE)
-			NEW_VAL=$(grep -w $CFG $MERGE_FILE)
-			if [ "x$PREV_VAL" != "x$NEW_VAL" ] ; then
+		grep -q -w $CFG $TMP_FILE || continue
+		PREV_VAL=$(grep -w $CFG $TMP_FILE)
+		NEW_VAL=$(grep -w $CFG $MERGE_FILE)
+		if [ "x$PREV_VAL" != "x$NEW_VAL" ] ; then
 			echo Value of $CFG is redefined by fragment $MERGE_FILE:
 			echo Previous  value: $PREV_VAL
 			echo New value:       $NEW_VAL
 			echo
-			elif [ "$WARNREDUN" = "true" ]; then
+		elif [ "$WARNREDUN" = "true" ]; then
 			echo Value of $CFG is redundant by fragment $MERGE_FILE:
-			fi
-			sed -i "/$CFG[ =]/d" $TMP_FILE
 		fi
+		sed -i "/$CFG[ =]/d" $TMP_FILE
 	done
 	cat $MERGE_FILE >> $TMP_FILE
 done
 
-if [ "$MAKE" = "false" ]; then
+if [ "$RUNMAKE" = "false" ]; then
 	cp $TMP_FILE $OUTPUT/.config
 	echo "#"
 	echo "# merged configuration written to $OUTPUT/.config (needs make)"
diff --git a/scripts/kconfig/nconf.c b/scripts/kconfig/nconf.c
index 984489ef2b4..d42d534a66c 100644
--- a/scripts/kconfig/nconf.c
+++ b/scripts/kconfig/nconf.c
@@ -1482,6 +1482,11 @@ int main(int ac, char **av)
 	bindtextdomain(PACKAGE, LOCALEDIR);
 	textdomain(PACKAGE);
 
+	if (ac > 1 && strcmp(av[1], "-s") == 0) {
+		/* Silence conf_read() until the real callback is set up */
+		conf_set_message_callback(NULL);
+		av++;
+	}
 	conf_parse(av[1]);
 	conf_read(NULL);
 
diff --git a/scripts/kconfig/qconf.cc b/scripts/kconfig/qconf.cc
index 9d3b04b0769..c3bb7fe8dfa 100644
--- a/scripts/kconfig/qconf.cc
+++ b/scripts/kconfig/qconf.cc
@@ -1746,7 +1746,7 @@ static const char *progname;
 
 static void usage(void)
 {
-	printf(_("%s <config>\n"), progname);
+	printf(_("%s [-s] <config>\n"), progname);
 	exit(0);
 }
 
@@ -1762,6 +1762,9 @@ int main(int ac, char** av)
 	configApp = new QApplication(ac, av);
 	if (ac > 1 && av[1][0] == '-') {
 		switch (av[1][1]) {
+		case 's':
+			conf_set_message_callback(NULL);
+			break;
 		case 'h':
 		case '?':
 			usage();
diff --git a/scripts/kconfig/symbol.c b/scripts/kconfig/symbol.c
index ab339ebbe30..550e1d74314 100644
--- a/scripts/kconfig/symbol.c
+++ b/scripts/kconfig/symbol.c
@@ -112,7 +112,7 @@ struct property *sym_get_env_prop(struct symbol *sym)
 	return NULL;
 }
 
-struct property *sym_get_default_prop(struct symbol *sym)
+static struct property *sym_get_default_prop(struct symbol *sym)
 {
 	struct property *prop;
 
@@ -186,6 +186,26 @@ static void sym_validate_range(struct symbol *sym)
 	sym->curr.val = strdup(str);
 }
 
+static void sym_set_changed(struct symbol *sym)
+{
+	struct property *prop;
+
+	sym->flags |= SYMBOL_CHANGED;
+	for (prop = sym->prop; prop; prop = prop->next) {
+		if (prop->menu)
+			prop->menu->flags |= MENU_CHANGED;
+	}
+}
+
+static void sym_set_all_changed(void)
+{
+	struct symbol *sym;
+	int i;
+
+	for_all_symbols(i, sym)
+		sym_set_changed(sym);
+}
+
 static void sym_calc_visibility(struct symbol *sym)
 {
 	struct property *prop;
@@ -451,26 +471,6 @@ void sym_clear_all_valid(void)
 		sym_calc_value(modules_sym);
 }
 
-void sym_set_changed(struct symbol *sym)
-{
-	struct property *prop;
-
-	sym->flags |= SYMBOL_CHANGED;
-	for (prop = sym->prop; prop; prop = prop->next) {
-		if (prop->menu)
-			prop->menu->flags |= MENU_CHANGED;
-	}
-}
-
-void sym_set_all_changed(void)
-{
-	struct symbol *sym;
-	int i;
-
-	for_all_symbols(i, sym)
-		sym_set_changed(sym);
-}
-
 bool sym_tristate_within_range(struct symbol *sym, tristate val)
 {
 	int type = sym_get_type(sym);
diff --git a/scripts/kconfig/util.c b/scripts/kconfig/util.c
index 94f9c83e324..0e76042473c 100644
--- a/scripts/kconfig/util.c
+++ b/scripts/kconfig/util.c
@@ -88,16 +88,6 @@ struct gstr str_new(void)
 	return gs;
 }
 
-/* Allocate and assign growable string */
-struct gstr str_assign(const char *s)
-{
-	struct gstr gs;
-	gs.s = strdup(s);
-	gs.len = strlen(s) + 1;
-	gs.max_width = 0;
-	return gs;
-}
-
 /* Free storage for growable string */
 void str_free(struct gstr *gs)
 {