From 4980bdf0213c9b5f876551b2ceb8ed8ece30deaf Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <yamada.m@jp.panasonic.com>
Date: Wed, 3 Dec 2014 15:55:49 +0900
Subject: kconfig: fix a misspelling in scripts/kconfig/merge_config.sh

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 scripts/kconfig/merge_config.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'scripts')

diff --git a/scripts/kconfig/merge_config.sh b/scripts/kconfig/merge_config.sh
index 2ab91b9b100d..2118af84e661 100755
--- a/scripts/kconfig/merge_config.sh
+++ b/scripts/kconfig/merge_config.sh
@@ -92,7 +92,7 @@ TMP_FILE=$(mktemp ./.tmp.config.XXXXXXXXXX)
 echo "Using $INITFILE as base"
 cat $INITFILE > $TMP_FILE
 
-# Merge files, printing warnings on overrided values
+# Merge files, printing warnings on overridden values
 for MERGE_FILE in $MERGE_LIST ; do
 	echo "Merging $MERGE_FILE"
 	CFG_LIST=$(sed -n "$SED_CONFIG_EXP" $MERGE_FILE)
-- 
cgit v1.2.3


From 70529b1a1784503169416df19ce3d68746401340 Mon Sep 17 00:00:00 2001
From: Michal Marek <mmarek@suse.cz>
Date: Tue, 27 Jan 2015 17:11:42 +0100
Subject: kconfig: Get rid of the P() macro in headers

This was originally meant for dlopen()ing a potential kconfig shared
library. The unused dlopen code has already been removed in commit
5a6f8d2b (kconfig: nuke LKC_DIRECT_LINK cruft), so let's remove the
rest. The lkc_proto.h change was made with the following sed script:

  sed -r 's/^P\(([^,]*), *([^,]*), *(.*)\);/\2 \1\3;/'

Plus some manual adjustments.

Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 scripts/kconfig/lkc.h       |  2 --
 scripts/kconfig/lkc_proto.h | 88 ++++++++++++++++++++++-----------------------
 2 files changed, 43 insertions(+), 47 deletions(-)

(limited to 'scripts')

diff --git a/scripts/kconfig/lkc.h b/scripts/kconfig/lkc.h
index d5daa7af8b49..e418a30bbc40 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"
 
diff --git a/scripts/kconfig/lkc_proto.h b/scripts/kconfig/lkc_proto.h
index ecdb9659b67d..ceddbcf1e5ac 100644
--- a/scripts/kconfig/lkc_proto.h
+++ b/scripts/kconfig/lkc_proto.h
@@ -1,57 +1,55 @@
 #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);
+void get_symbol_str(struct gstr *r, struct symbol *sym, struct list_head *head);
+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);
+struct property * sym_get_default_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));
+int expr_compare_type(enum expr_type t1, enum expr_type t2);
+void expr_print(struct expr *e, void (*fn)(void *, struct symbol *, const char *), void *data, int prevtoken);
-- 
cgit v1.2.3


From 463157444e377bf9b279101b1f16a94c4648c03a Mon Sep 17 00:00:00 2001
From: Michal Marek <mmarek@suse.cz>
Date: Tue, 24 Feb 2015 16:32:09 +0100
Subject: kconfig: Remove dead code

Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 scripts/kconfig/expr.c  |  4 ----
 scripts/kconfig/gconf.c | 24 ------------------------
 scripts/kconfig/lkc.h   |  1 -
 scripts/kconfig/util.c  | 10 ----------
 4 files changed, 39 deletions(-)

(limited to 'scripts')

diff --git a/scripts/kconfig/expr.c b/scripts/kconfig/expr.c
index d6626521f9b9..4b4cf8e21314 100644
--- a/scripts/kconfig/expr.c
+++ b/scripts/kconfig/expr.c
@@ -978,9 +978,6 @@ tristate expr_calc_value(struct expr *e)
 
 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 +1002,6 @@ 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/gconf.c b/scripts/kconfig/gconf.c
index d0a35b21f308..344b9e340ecb 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",
diff --git a/scripts/kconfig/lkc.h b/scripts/kconfig/lkc.h
index e418a30bbc40..9f845eab56cb 100644
--- a/scripts/kconfig/lkc.h
+++ b/scripts/kconfig/lkc.h
@@ -135,7 +135,6 @@ 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, ...);
diff --git a/scripts/kconfig/util.c b/scripts/kconfig/util.c
index 94f9c83e324f..0e76042473cc 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)
 {
-- 
cgit v1.2.3


From ad8d40cda3ad22ad9e8863d55a5c88f85c0173f0 Mon Sep 17 00:00:00 2001
From: Michal Marek <mmarek@suse.cz>
Date: Tue, 24 Feb 2015 16:37:13 +0100
Subject: kconfig: Remove unnecessary prototypes from headers

Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 scripts/kconfig/confdata.c  |  5 +++++
 scripts/kconfig/expr.c      | 18 ++++++++++++------
 scripts/kconfig/expr.h      |  5 -----
 scripts/kconfig/lkc.h       | 11 -----------
 scripts/kconfig/lkc_proto.h |  3 ---
 scripts/kconfig/menu.c      |  4 ++--
 scripts/kconfig/symbol.c    | 42 +++++++++++++++++++++---------------------
 7 files changed, 40 insertions(+), 48 deletions(-)

(limited to 'scripts')

diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index 28df18dd1147..c814f57672fc 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)));
 
diff --git a/scripts/kconfig/expr.c b/scripts/kconfig/expr.c
index 4b4cf8e21314..fb0a2a286dca 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)
@@ -976,7 +982,7 @@ 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 (t1 == t2)
 		return 0;
diff --git a/scripts/kconfig/expr.h b/scripts/kconfig/expr.h
index 412ea8a2abb8..a2fc96a2bd2c 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/lkc.h b/scripts/kconfig/lkc.h
index 9f845eab56cb..91ca126ea080 100644
--- a/scripts/kconfig/lkc.h
+++ b/scripts/kconfig/lkc.h
@@ -68,9 +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);
@@ -88,11 +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)
 {
@@ -111,7 +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);
@@ -145,8 +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 ceddbcf1e5ac..d5398718ec2a 100644
--- a/scripts/kconfig/lkc_proto.h
+++ b/scripts/kconfig/lkc_proto.h
@@ -22,7 +22,6 @@ 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);
-void get_symbol_str(struct gstr *r, struct symbol *sym, struct list_head *head);
 struct gstr get_relations_str(struct symbol **sym_arr, struct list_head *head);
 void menu_get_ext_help(struct menu *menu, struct gstr *help);
 
@@ -45,11 +44,9 @@ 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);
-struct property * sym_get_default_prop(struct symbol *sym);
 const char * sym_get_string_value(struct symbol *sym);
 
 const char * prop_get_type_name(enum prop_type type);
 
 /* expr.c */
-int expr_compare_type(enum expr_type t1, enum expr_type t2);
 void expr_print(struct expr *e, void (*fn)(void *, struct symbol *, const char *), void *data, int prevtoken);
diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c
index 72c9dba84c5d..b05cc3d4a9be 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/symbol.c b/scripts/kconfig/symbol.c
index 7caabdb51c64..6731377f9bb2 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);
-- 
cgit v1.2.3


From 9b4ade226f7468bb26f98b6cd01cb5b8a05fc96d Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Wed, 21 Jan 2015 08:49:22 +0100
Subject: xen: build infrastructure for generating hypercall depending symbols

Today there are several places in the kernel which build tables
containing one entry for each possible Xen hypercall. Create an
infrastructure to be able to generate these tables at build time.

Based-on-patch-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
---
 arch/x86/syscalls/Makefile |  9 +++++++++
 scripts/xen-hypercalls.sh  | 12 ++++++++++++
 2 files changed, 21 insertions(+)
 create mode 100644 scripts/xen-hypercalls.sh

(limited to 'scripts')

diff --git a/arch/x86/syscalls/Makefile b/arch/x86/syscalls/Makefile
index 3323c2745248..a55abb9f6c5e 100644
--- a/arch/x86/syscalls/Makefile
+++ b/arch/x86/syscalls/Makefile
@@ -19,6 +19,9 @@ quiet_cmd_syshdr = SYSHDR  $@
 quiet_cmd_systbl = SYSTBL  $@
       cmd_systbl = $(CONFIG_SHELL) '$(systbl)' $< $@
 
+quiet_cmd_hypercalls = HYPERCALLS $@
+      cmd_hypercalls = $(CONFIG_SHELL) '$<' $@ $(filter-out $<,$^)
+
 syshdr_abi_unistd_32 := i386
 $(uapi)/unistd_32.h: $(syscall32) $(syshdr)
 	$(call if_changed,syshdr)
@@ -47,10 +50,16 @@ $(out)/syscalls_32.h: $(syscall32) $(systbl)
 $(out)/syscalls_64.h: $(syscall64) $(systbl)
 	$(call if_changed,systbl)
 
+$(out)/xen-hypercalls.h: $(srctree)/scripts/xen-hypercalls.sh
+	$(call if_changed,hypercalls)
+
+$(out)/xen-hypercalls.h: $(srctree)/include/xen/interface/xen*.h
+
 uapisyshdr-y			+= unistd_32.h unistd_64.h unistd_x32.h
 syshdr-y			+= syscalls_32.h
 syshdr-$(CONFIG_X86_64)		+= unistd_32_ia32.h unistd_64_x32.h
 syshdr-$(CONFIG_X86_64)		+= syscalls_64.h
+syshdr-$(CONFIG_XEN)		+= xen-hypercalls.h
 
 targets	+= $(uapisyshdr-y) $(syshdr-y)
 
diff --git a/scripts/xen-hypercalls.sh b/scripts/xen-hypercalls.sh
new file mode 100644
index 000000000000..676d9226814f
--- /dev/null
+++ b/scripts/xen-hypercalls.sh
@@ -0,0 +1,12 @@
+#!/bin/sh
+out="$1"
+shift
+in="$@"
+
+for i in $in; do
+	eval $CPP $LINUXINCLUDE -dD -imacros "$i" -x c /dev/null
+done | \
+awk '$1 == "#define" && $2 ~ /__HYPERVISOR_[a-z][a-z_0-9]*/ { v[$3] = $2 }
+	END {   print "/* auto-generated by scripts/xen-hypercall.sh */"
+		for (i in v) if (!(v[i] in v))
+			print "HYPERCALL("substr(v[i], 14)")"}' | sort -u >$out
-- 
cgit v1.2.3


From de4619937229378e81f95e99c9866acc8e207d34 Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <yamada.masahiro@socionext.com>
Date: Fri, 13 Mar 2015 15:21:38 +0900
Subject: kbuild: mergeconfig: fix "jobserver unavailable" warning

If "make kvmconfig" is run with "-j" option, a warning message,
"jobserver unavailable: using -j1.  Add `+' to parent make rule.",
is displayed.

  $ make -s defconfig
  *** Default configuration is based on 'x86_64_defconfig'
  #
  # configuration written to .config
  #
  $ make -j8 kvmconfig
  Using ./.config as base
  Merging ./arch/x86/configs/kvm_guest.config
    [ snip ]
  #
  # merged configuration written to ./.config (needs make)
  #
  make[2]: warning: jobserver unavailable: using -j1.  Add `+' to
  parent make rule.
  scripts/kconfig/conf --oldconfig Kconfig
    [ snip ]
  #
  # configuration written to .config
  #

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Reviewed-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 scripts/kconfig/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'scripts')

diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index 9645c0739386..fc34f46cb025 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -110,7 +110,7 @@ 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 $(srctree)/Makefile oldconfig
++$(Q)yes "" | $(MAKE) -f $(srctree)/Makefile oldconfig
 endef
 
 PHONY += kvmconfig
-- 
cgit v1.2.3


From b9fe99c5b994c6ddc57780993966b18899526c0b Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <yamada.masahiro@socionext.com>
Date: Fri, 13 Mar 2015 15:21:39 +0900
Subject: kbuild: mergeconfig: move an error check to merge_config.sh

Currently, "make tinyconfig" does not work with "-j" option.

  $ make mrproper
  $ make -j8 tinyconfig
    HOSTCC  scripts/basic/fixdep
    HOSTCC  scripts/kconfig/conf.o
    SHIPPED scripts/kconfig/zconf.tab.c
    SHIPPED scripts/kconfig/zconf.lex.c
    SHIPPED scripts/kconfig/zconf.hash.c
    HOSTCC  scripts/kconfig/zconf.tab.o
    HOSTLD  scripts/kconfig/conf
  scripts/kconfig/conf --allnoconfig Kconfig
  #
  # configuration written to .config
  #
  scripts/kconfig/Makefile:122: *** You need an existing .config
  for this target.  Stop.
  make: *** [tinyconfig] Error 2

As shown above, "allnoconfig" has created the .config file before
mergeconfig is called, but Make still raises a false alarm because
of some sort of race condition.

We can fix this issue by moving the error check to the shell script.

Anyway, scripts/kconfig/merge_config.sh always requires an existing
.config as a base file.  It is reasonable to check its existence in
the shell script.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Reviewed-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 scripts/kconfig/Makefile        | 1 -
 scripts/kconfig/merge_config.sh | 5 +++++
 2 files changed, 5 insertions(+), 1 deletion(-)

(limited to 'scripts')

diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index fc34f46cb025..be0fad44ddd8 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -107,7 +107,6 @@ endif
 configfiles=$(wildcard $(srctree)/kernel/configs/$(1).config $(srctree)/arch/$(SRCARCH)/configs/$(1).config)
 
 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
diff --git a/scripts/kconfig/merge_config.sh b/scripts/kconfig/merge_config.sh
index 2118af84e661..88d89b2986db 100755
--- a/scripts/kconfig/merge_config.sh
+++ b/scripts/kconfig/merge_config.sh
@@ -85,6 +85,11 @@ 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)
-- 
cgit v1.2.3


From 371cfd4ff0611d8bc5d18bbb9cc6a2bc3d56cd3d Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <yamada.masahiro@socionext.com>
Date: Fri, 13 Mar 2015 15:21:40 +0900
Subject: kbuild: mergeconfig: remove redundant $(objtree)

Kbuild always runs in $(objtree).  Actually, $(objtree) is always
set to "." by the top-level Makefile.

We can omit "-O $(objtree)" and "$(objtree)/".

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Reviewed-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 scripts/kconfig/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'scripts')

diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index be0fad44ddd8..b0e4be28204d 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -108,7 +108,7 @@ configfiles=$(wildcard $(srctree)/kernel/configs/$(1).config $(srctree)/arch/$(S
 
 define mergeconfig
 $(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))
+$(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m .config $(call configfiles,$(1))
 +$(Q)yes "" | $(MAKE) -f $(srctree)/Makefile oldconfig
 endef
 
-- 
cgit v1.2.3


From 3a975b8cfcbe026b535f83bde9a3c009bae214f9 Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <yamada.masahiro@socionext.com>
Date: Fri, 13 Mar 2015 15:21:41 +0900
Subject: merge_config.sh: improve indentation

It is true that we do not want to move the code too far to the
right, but something like below is not preferred:

    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
    echo Value of $CFG is redundant by fragment $MERGE_FILE:
    fi

To fix this, call "continue" if the "grep" command fails to find the
given CONFIG.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Reviewed-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 scripts/kconfig/merge_config.sh | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

(limited to 'scripts')

diff --git a/scripts/kconfig/merge_config.sh b/scripts/kconfig/merge_config.sh
index 88d89b2986db..56584b107bf8 100755
--- a/scripts/kconfig/merge_config.sh
+++ b/scripts/kconfig/merge_config.sh
@@ -103,20 +103,18 @@ 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
-- 
cgit v1.2.3


From bc8f8f5fc47cd02c2c5f3580dac2fe6695af1edd Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <yamada.masahiro@socionext.com>
Date: Fri, 13 Mar 2015 15:21:42 +0900
Subject: merge_config.sh: rename MAKE to RUNMAKE

The variable "MAKE" is used to store the command name that has
invoked the Makefile.  (Actually, it is already set to "make"
if you run this script from a Makefile.)

In this script, however, it is used to determine if Make should be
run or not.  It is not what we usually expect.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Reviewed-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 scripts/kconfig/merge_config.sh | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'scripts')

diff --git a/scripts/kconfig/merge_config.sh b/scripts/kconfig/merge_config.sh
index 56584b107bf8..ec8e20350a64 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
 		;;
@@ -119,7 +119,7 @@ for MERGE_FILE in $MERGE_LIST ; do
 	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)"
-- 
cgit v1.2.3


From 63a91033d52e64a22e571fe84924c0b7f21c280d Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <yamada.masahiro@socionext.com>
Date: Fri, 13 Mar 2015 15:21:43 +0900
Subject: kbuild: add generic mergeconfig target, %.config

"scripts/kconfig/merge_config.sh && make oldconfig" works well
enough for merging local config fragments, but Kbuild currently has
the entry points only for "kvmconfig" and "tinyconfig".

This commit provides the generic target for mergeconfig, so we can
manage our own config fragments easily:
put "foo.config" in arch/$(SRCARCH)/configs/ or kernel/configs/,
and then run "make foo.config".

Now "make kvmconfig" is just a shorthand of "make kvm_guest.config".
Likewise, "make tinyconfig" is equivalent to
"make allnoconfig tiny.config".

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Reviewed-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 scripts/kconfig/Makefile | 19 +++++++++----------
 1 file changed, 9 insertions(+), 10 deletions(-)

(limited to 'scripts')

diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index b0e4be28204d..cb2cf548c45c 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -104,21 +104,20 @@ endif
 %_defconfig: $(obj)/conf
 	$(Q)$< --defconfig=arch/$(SRCARCH)/configs/$@ $(Kconfig)
 
-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 $(call configfiles,$(1)),, $(error No configuration exists for this target on this architecture))
-$(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m .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:
-- 
cgit v1.2.3


From 8286ae03308c6f97f346f9f8cb9174b04969add5 Mon Sep 17 00:00:00 2001
From: James Hogan <james.hogan@imgtec.com>
Date: Wed, 25 Mar 2015 15:39:50 +0000
Subject: MIPS: Add CDMM bus support

Add MIPS Common Device Memory Map (CDMM) support in the form of a bus in
the standard Linux device model. Each device attached via CDMM is
discoverable via an 8-bit type identifier and may contain a number of
blocks of memory mapped registers in the CDMM region. IRQs are expected
to be handled separately.

Due to the per-cpu (per-VPE for MT cores) nature of the CDMM devices,
all the driver callbacks take place from workqueues which are run on the
right CPU for the device in question, so that the driver doesn't need to
be as concerned about which CPU it is running on. Callbacks also exist
for when CPUs are taken offline, so that any per-CPU resources used by
the driver can be disabled so they don't get forcefully migrated. CDMM
devices are created as children of the CPU device they are attached to.

Any existing CDMM configuration by the bootloader will be inherited,
however platforms wishing to enable CDMM should implement the weak
mips_cdmm_phys_base() function (see asm/cdmm.h) so that the bus driver
knows where it should put the CDMM region in the physical address space
if the bootloader hasn't already enabled it.

A mips_cdmm_early_probe() function is also provided to allow early boot
or particularly low level code to set up the CDMM region and probe for a
specific device type, for example early console or KGDB IO drivers for
the EJTAG Fast Debug Channel (FDC) CDMM device.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/9599/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/include/asm/cdmm.h      |  87 +++++
 drivers/bus/Kconfig               |  13 +
 drivers/bus/Makefile              |   1 +
 drivers/bus/mips_cdmm.c           | 716 ++++++++++++++++++++++++++++++++++++++
 include/linux/mod_devicetable.h   |   8 +
 scripts/mod/devicetable-offsets.c |   3 +
 scripts/mod/file2alias.c          |  16 +
 7 files changed, 844 insertions(+)
 create mode 100644 arch/mips/include/asm/cdmm.h
 create mode 100644 drivers/bus/mips_cdmm.c

(limited to 'scripts')

diff --git a/arch/mips/include/asm/cdmm.h b/arch/mips/include/asm/cdmm.h
new file mode 100644
index 000000000000..b7d520f28d30
--- /dev/null
+++ b/arch/mips/include/asm/cdmm.h
@@ -0,0 +1,87 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2014 Imagination Technologies Ltd.
+ */
+#ifndef __ASM_CDMM_H
+#define __ASM_CDMM_H
+
+#include <linux/device.h>
+#include <linux/mod_devicetable.h>
+
+/**
+ * struct mips_cdmm_device - Represents a single device on a CDMM bus.
+ * @dev:	Driver model device object.
+ * @cpu:	CPU which can access this device.
+ * @res:	MMIO resource.
+ * @type:	Device type identifier.
+ * @rev:	Device revision number.
+ */
+struct mips_cdmm_device {
+	struct device		dev;
+	unsigned int		cpu;
+	struct resource		res;
+	unsigned int		type;
+	unsigned int		rev;
+};
+
+/**
+ * struct mips_cdmm_driver - Represents a driver for a CDMM device.
+ * @drv:	Driver model driver object.
+ * @probe	Callback for probing newly discovered devices.
+ * @remove:	Callback to remove the device.
+ * @shutdown:	Callback on system shutdown.
+ * @cpu_down:	Callback when the parent CPU is going down.
+ *		Any CPU pinned threads/timers should be disabled.
+ * @cpu_up:	Callback when the parent CPU is coming back up again.
+ *		CPU pinned threads/timers can be restarted.
+ * @id_table:	Table for CDMM IDs to match against.
+ */
+struct mips_cdmm_driver {
+	struct device_driver	drv;
+	int			(*probe)(struct mips_cdmm_device *);
+	int			(*remove)(struct mips_cdmm_device *);
+	void			(*shutdown)(struct mips_cdmm_device *);
+	int			(*cpu_down)(struct mips_cdmm_device *);
+	int			(*cpu_up)(struct mips_cdmm_device *);
+	const struct mips_cdmm_device_id *id_table;
+};
+
+/**
+ * mips_cdmm_phys_base() - Choose a physical base address for CDMM region.
+ *
+ * Picking a suitable physical address at which to map the CDMM region is
+ * platform specific, so this weak function can be defined by platform code to
+ * pick a suitable value if none is configured by the bootloader.
+ *
+ * This address must be 32kB aligned, and the region occupies a maximum of 32kB
+ * of physical address space which must not be used for anything else.
+ *
+ * Returns:	Physical base address for CDMM region, or 0 on failure.
+ */
+phys_addr_t __weak mips_cdmm_phys_base(void);
+
+extern struct bus_type mips_cdmm_bustype;
+void __iomem *mips_cdmm_early_probe(unsigned int dev_type);
+
+#define to_mips_cdmm_device(d)	container_of(d, struct mips_cdmm_device, dev)
+
+#define mips_cdmm_get_drvdata(d)	dev_get_drvdata(&d->dev)
+#define mips_cdmm_set_drvdata(d, p)	dev_set_drvdata(&d->dev, p)
+
+int mips_cdmm_driver_register(struct mips_cdmm_driver *);
+void mips_cdmm_driver_unregister(struct mips_cdmm_driver *);
+
+/*
+ * module_mips_cdmm_driver() - Helper macro for drivers that don't do
+ * anything special in module init/exit.  This eliminates a lot of
+ * boilerplate.  Each module may only use this macro once, and
+ * calling it replaces module_init() and module_exit()
+ */
+#define module_mips_cdmm_driver(__mips_cdmm_driver) \
+	module_driver(__mips_cdmm_driver, mips_cdmm_driver_register, \
+			mips_cdmm_driver_unregister)
+
+#endif /* __ASM_CDMM_H */
diff --git a/drivers/bus/Kconfig b/drivers/bus/Kconfig
index b99729e36860..cbddbaddb347 100644
--- a/drivers/bus/Kconfig
+++ b/drivers/bus/Kconfig
@@ -20,6 +20,19 @@ config IMX_WEIM
 	  The WEIM(Wireless External Interface Module) works like a bus.
 	  You can attach many different devices on it, such as NOR, onenand.
 
+config MIPS_CDMM
+	bool "MIPS Common Device Memory Map (CDMM) Driver"
+	depends on CPU_MIPSR2
+	help
+	  Driver needed for the MIPS Common Device Memory Map bus in MIPS
+	  cores. This bus is for per-CPU tightly coupled devices such as the
+	  Fast Debug Channel (FDC).
+
+	  For this to work, either your bootloader needs to enable the CDMM
+	  region at an unused physical address on the boot CPU, or else your
+	  platform code needs to implement mips_cdmm_phys_base() (see
+	  asm/cdmm.h).
+
 config MVEBU_MBUS
 	bool
 	depends on PLAT_ORION
diff --git a/drivers/bus/Makefile b/drivers/bus/Makefile
index 2973c18cbcc2..807dd17ef2f8 100644
--- a/drivers/bus/Makefile
+++ b/drivers/bus/Makefile
@@ -4,6 +4,7 @@
 
 obj-$(CONFIG_BRCMSTB_GISB_ARB)	+= brcmstb_gisb.o
 obj-$(CONFIG_IMX_WEIM)	+= imx-weim.o
+obj-$(CONFIG_MIPS_CDMM) += mips_cdmm.o
 obj-$(CONFIG_MVEBU_MBUS) += mvebu-mbus.o
 obj-$(CONFIG_OMAP_OCP2SCP)	+= omap-ocp2scp.o
 
diff --git a/drivers/bus/mips_cdmm.c b/drivers/bus/mips_cdmm.c
new file mode 100644
index 000000000000..5bd792c68f9b
--- /dev/null
+++ b/drivers/bus/mips_cdmm.c
@@ -0,0 +1,716 @@
+/*
+ * Bus driver for MIPS Common Device Memory Map (CDMM).
+ *
+ * Copyright (C) 2014-2015 Imagination Technologies Ltd.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/atomic.h>
+#include <linux/err.h>
+#include <linux/cpu.h>
+#include <linux/cpumask.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/smp.h>
+#include <asm/cdmm.h>
+#include <asm/hazards.h>
+#include <asm/mipsregs.h>
+
+/* Access control and status register fields */
+#define CDMM_ACSR_DEVTYPE_SHIFT	24
+#define CDMM_ACSR_DEVTYPE	(255ul << CDMM_ACSR_DEVTYPE_SHIFT)
+#define CDMM_ACSR_DEVSIZE_SHIFT	16
+#define CDMM_ACSR_DEVSIZE	(31ul << CDMM_ACSR_DEVSIZE_SHIFT)
+#define CDMM_ACSR_DEVREV_SHIFT	12
+#define CDMM_ACSR_DEVREV	(15ul << CDMM_ACSR_DEVREV_SHIFT)
+#define CDMM_ACSR_UW		(1ul << 3)
+#define CDMM_ACSR_UR		(1ul << 2)
+#define CDMM_ACSR_SW		(1ul << 1)
+#define CDMM_ACSR_SR		(1ul << 0)
+
+/* Each block of device registers is 64 bytes */
+#define CDMM_DRB_SIZE		64
+
+#define to_mips_cdmm_driver(d)	container_of(d, struct mips_cdmm_driver, drv)
+
+/* Default physical base address */
+static phys_addr_t mips_cdmm_default_base;
+
+/* Bus operations */
+
+static const struct mips_cdmm_device_id *
+mips_cdmm_lookup(const struct mips_cdmm_device_id *table,
+		 struct mips_cdmm_device *dev)
+{
+	int ret = 0;
+
+	for (; table->type; ++table) {
+		ret = (dev->type == table->type);
+		if (ret)
+			break;
+	}
+
+	return ret ? table : NULL;
+}
+
+static int mips_cdmm_match(struct device *dev, struct device_driver *drv)
+{
+	struct mips_cdmm_device *cdev = to_mips_cdmm_device(dev);
+	struct mips_cdmm_driver *cdrv = to_mips_cdmm_driver(drv);
+
+	return mips_cdmm_lookup(cdrv->id_table, cdev) != NULL;
+}
+
+static int mips_cdmm_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+	struct mips_cdmm_device *cdev = to_mips_cdmm_device(dev);
+	int retval = 0;
+
+	retval = add_uevent_var(env, "CDMM_CPU=%u", cdev->cpu);
+	if (retval)
+		return retval;
+
+	retval = add_uevent_var(env, "CDMM_TYPE=0x%02x", cdev->type);
+	if (retval)
+		return retval;
+
+	retval = add_uevent_var(env, "CDMM_REV=%u", cdev->rev);
+	if (retval)
+		return retval;
+
+	retval = add_uevent_var(env, "MODALIAS=mipscdmm:t%02X", cdev->type);
+	return retval;
+}
+
+/* Device attributes */
+
+#define CDMM_ATTR(name, fmt, arg...)					\
+static ssize_t name##_show(struct device *_dev,				\
+			   struct device_attribute *attr, char *buf)	\
+{									\
+	struct mips_cdmm_device *dev = to_mips_cdmm_device(_dev);	\
+	return sprintf(buf, fmt, arg);					\
+}									\
+static DEVICE_ATTR_RO(name);
+
+CDMM_ATTR(cpu, "%u\n", dev->cpu);
+CDMM_ATTR(type, "0x%02x\n", dev->type);
+CDMM_ATTR(revision, "%u\n", dev->rev);
+CDMM_ATTR(modalias, "mipscdmm:t%02X\n", dev->type);
+CDMM_ATTR(resource, "\t%016llx\t%016llx\t%016lx\n",
+	  (unsigned long long)dev->res.start,
+	  (unsigned long long)dev->res.end,
+	  dev->res.flags);
+
+static struct attribute *mips_cdmm_dev_attrs[] = {
+	&dev_attr_cpu.attr,
+	&dev_attr_type.attr,
+	&dev_attr_revision.attr,
+	&dev_attr_modalias.attr,
+	&dev_attr_resource.attr,
+	NULL,
+};
+ATTRIBUTE_GROUPS(mips_cdmm_dev);
+
+struct bus_type mips_cdmm_bustype = {
+	.name		= "cdmm",
+	.dev_groups	= mips_cdmm_dev_groups,
+	.match		= mips_cdmm_match,
+	.uevent		= mips_cdmm_uevent,
+};
+EXPORT_SYMBOL_GPL(mips_cdmm_bustype);
+
+/*
+ * Standard driver callback helpers.
+ *
+ * All the CDMM driver callbacks need to be executed on the appropriate CPU from
+ * workqueues. For the standard driver callbacks we need a work function
+ * (mips_cdmm_{void,int}_work()) to do the actual call from the right CPU, and a
+ * wrapper function (generated with BUILD_PERCPU_HELPER) to arrange for the work
+ * function to be called on that CPU.
+ */
+
+/**
+ * struct mips_cdmm_work_dev - Data for per-device call work.
+ * @fn:		CDMM driver callback function to call for the device.
+ * @dev:	CDMM device to pass to @fn.
+ */
+struct mips_cdmm_work_dev {
+	void			*fn;
+	struct mips_cdmm_device *dev;
+};
+
+/**
+ * mips_cdmm_void_work() - Call a void returning CDMM driver callback.
+ * @data:	struct mips_cdmm_work_dev pointer.
+ *
+ * A work_on_cpu() callback function to call an arbitrary CDMM driver callback
+ * function which doesn't return a value.
+ */
+static long mips_cdmm_void_work(void *data)
+{
+	struct mips_cdmm_work_dev *work = data;
+	void (*fn)(struct mips_cdmm_device *) = work->fn;
+
+	fn(work->dev);
+	return 0;
+}
+
+/**
+ * mips_cdmm_int_work() - Call an int returning CDMM driver callback.
+ * @data:	struct mips_cdmm_work_dev pointer.
+ *
+ * A work_on_cpu() callback function to call an arbitrary CDMM driver callback
+ * function which returns an int.
+ */
+static long mips_cdmm_int_work(void *data)
+{
+	struct mips_cdmm_work_dev *work = data;
+	int (*fn)(struct mips_cdmm_device *) = work->fn;
+
+	return fn(work->dev);
+}
+
+#define _BUILD_RET_void
+#define _BUILD_RET_int	return
+
+/**
+ * BUILD_PERCPU_HELPER() - Helper to call a CDMM driver callback on right CPU.
+ * @_ret:	Return type (void or int).
+ * @_name:	Name of CDMM driver callback function.
+ *
+ * Generates a specific device callback function to call a CDMM driver callback
+ * function on the appropriate CPU for the device, and if applicable return the
+ * result.
+ */
+#define BUILD_PERCPU_HELPER(_ret, _name)				\
+static _ret mips_cdmm_##_name(struct device *dev)			\
+{									\
+	struct mips_cdmm_device *cdev = to_mips_cdmm_device(dev);	\
+	struct mips_cdmm_driver *cdrv = to_mips_cdmm_driver(dev->driver); \
+	struct mips_cdmm_work_dev work = {				\
+		.fn	= cdrv->_name,					\
+		.dev	= cdev,						\
+	};								\
+									\
+	_BUILD_RET_##_ret work_on_cpu(cdev->cpu,			\
+				      mips_cdmm_##_ret##_work, &work);	\
+}
+
+/* Driver callback functions */
+BUILD_PERCPU_HELPER(int, probe)     /* int mips_cdmm_probe(struct device) */
+BUILD_PERCPU_HELPER(int, remove)    /* int mips_cdmm_remove(struct device) */
+BUILD_PERCPU_HELPER(void, shutdown) /* void mips_cdmm_shutdown(struct device) */
+
+
+/* Driver registration */
+
+/**
+ * mips_cdmm_driver_register() - Register a CDMM driver.
+ * @drv:	CDMM driver information.
+ *
+ * Register a CDMM driver with the CDMM subsystem. The driver will be informed
+ * of matching devices which are discovered.
+ *
+ * Returns:	0 on success.
+ */
+int mips_cdmm_driver_register(struct mips_cdmm_driver *drv)
+{
+	drv->drv.bus = &mips_cdmm_bustype;
+
+	if (drv->probe)
+		drv->drv.probe = mips_cdmm_probe;
+	if (drv->remove)
+		drv->drv.remove = mips_cdmm_remove;
+	if (drv->shutdown)
+		drv->drv.shutdown = mips_cdmm_shutdown;
+
+	return driver_register(&drv->drv);
+}
+EXPORT_SYMBOL_GPL(mips_cdmm_driver_register);
+
+/**
+ * mips_cdmm_driver_unregister() - Unregister a CDMM driver.
+ * @drv:	CDMM driver information.
+ *
+ * Unregister a CDMM driver from the CDMM subsystem.
+ */
+void mips_cdmm_driver_unregister(struct mips_cdmm_driver *drv)
+{
+	driver_unregister(&drv->drv);
+}
+EXPORT_SYMBOL_GPL(mips_cdmm_driver_unregister);
+
+
+/* CDMM initialisation and bus discovery */
+
+/**
+ * struct mips_cdmm_bus - Info about CDMM bus.
+ * @phys:		Physical address at which it is mapped.
+ * @regs:		Virtual address where registers can be accessed.
+ * @drbs:		Total number of DRBs.
+ * @drbs_reserved:	Number of DRBs reserved.
+ * @discovered:		Whether the devices on the bus have been discovered yet.
+ * @offline:		Whether the CDMM bus is going offline (or very early
+ *			coming back online), in which case it should be
+ *			reconfigured each time.
+ */
+struct mips_cdmm_bus {
+	phys_addr_t	 phys;
+	void __iomem	*regs;
+	unsigned int	 drbs;
+	unsigned int	 drbs_reserved;
+	bool		 discovered;
+	bool		 offline;
+};
+
+static struct mips_cdmm_bus mips_cdmm_boot_bus;
+static DEFINE_PER_CPU(struct mips_cdmm_bus *, mips_cdmm_buses);
+static atomic_t mips_cdmm_next_id = ATOMIC_INIT(-1);
+
+/**
+ * mips_cdmm_get_bus() - Get the per-CPU CDMM bus information.
+ *
+ * Get information about the per-CPU CDMM bus, if the bus is present.
+ *
+ * The caller must prevent migration to another CPU, either by disabling
+ * pre-emption or by running from a pinned kernel thread.
+ *
+ * Returns:	Pointer to CDMM bus information for the current CPU.
+ *		May return ERR_PTR(-errno) in case of error, so check with
+ *		IS_ERR().
+ */
+static struct mips_cdmm_bus *mips_cdmm_get_bus(void)
+{
+	struct mips_cdmm_bus *bus, **bus_p;
+	unsigned long flags;
+	unsigned int cpu;
+
+	if (!cpu_has_cdmm)
+		return ERR_PTR(-ENODEV);
+
+	cpu = smp_processor_id();
+	/* Avoid early use of per-cpu primitives before initialised */
+	if (cpu == 0)
+		return &mips_cdmm_boot_bus;
+
+	/* Get bus pointer */
+	bus_p = per_cpu_ptr(&mips_cdmm_buses, cpu);
+	local_irq_save(flags);
+	bus = *bus_p;
+	/* Attempt allocation if NULL */
+	if (unlikely(!bus)) {
+		bus = kzalloc(sizeof(*bus), GFP_ATOMIC);
+		if (unlikely(!bus))
+			bus = ERR_PTR(-ENOMEM);
+		else
+			*bus_p = bus;
+	}
+	local_irq_restore(flags);
+	return bus;
+}
+
+/**
+ * mips_cdmm_cur_base() - Find current physical base address of CDMM region.
+ *
+ * Returns:	Physical base address of CDMM region according to cdmmbase CP0
+ *		register, or 0 if the CDMM region is disabled.
+ */
+static phys_addr_t mips_cdmm_cur_base(void)
+{
+	unsigned long cdmmbase = read_c0_cdmmbase();
+
+	if (!(cdmmbase & MIPS_CDMMBASE_EN))
+		return 0;
+
+	return (cdmmbase >> MIPS_CDMMBASE_ADDR_SHIFT)
+		<< MIPS_CDMMBASE_ADDR_START;
+}
+
+/**
+ * mips_cdmm_setup() - Ensure the CDMM bus is initialised and usable.
+ * @bus:	Pointer to bus information for current CPU.
+ *		IS_ERR(bus) is checked, so no need for caller to check.
+ *
+ * The caller must prevent migration to another CPU, either by disabling
+ * pre-emption or by running from a pinned kernel thread.
+ *
+ * Returns	0 on success, -errno on failure.
+ */
+static int mips_cdmm_setup(struct mips_cdmm_bus *bus)
+{
+	unsigned long cdmmbase, flags;
+	int ret = 0;
+
+	if (IS_ERR(bus))
+		return PTR_ERR(bus);
+
+	local_irq_save(flags);
+	/* Don't set up bus a second time unless marked offline */
+	if (bus->offline) {
+		/* If CDMM region is still set up, nothing to do */
+		if (bus->phys == mips_cdmm_cur_base())
+			goto out;
+		/*
+		 * The CDMM region isn't set up as expected, so it needs
+		 * reconfiguring, but then we can stop checking it.
+		 */
+		bus->offline = false;
+	} else if (bus->phys > 1) {
+		goto out;
+	}
+
+	/* If the CDMM region is already configured, inherit that setup */
+	if (!bus->phys)
+		bus->phys = mips_cdmm_cur_base();
+	/* Otherwise, ask platform code for suggestions */
+	if (!bus->phys && mips_cdmm_phys_base)
+		bus->phys = mips_cdmm_phys_base();
+	/* Otherwise, copy what other CPUs have done */
+	if (!bus->phys)
+		bus->phys = mips_cdmm_default_base;
+	/* Otherwise, complain once */
+	if (!bus->phys) {
+		bus->phys = 1;
+		/*
+		 * If you hit this, either your bootloader needs to set up the
+		 * CDMM on the boot CPU, or else you need to implement
+		 * mips_cdmm_phys_base() for your platform (see asm/cdmm.h).
+		 */
+		pr_err("cdmm%u: Failed to choose a physical base\n",
+		       smp_processor_id());
+	}
+	/* Already complained? */
+	if (bus->phys == 1) {
+		ret = -ENOMEM;
+		goto out;
+	}
+	/* Record our success for other CPUs to copy */
+	mips_cdmm_default_base = bus->phys;
+
+	pr_debug("cdmm%u: Enabling CDMM region at %pa\n",
+		 smp_processor_id(), &bus->phys);
+
+	/* Enable CDMM */
+	cdmmbase = read_c0_cdmmbase();
+	cdmmbase &= (1ul << MIPS_CDMMBASE_ADDR_SHIFT) - 1;
+	cdmmbase |= (bus->phys >> MIPS_CDMMBASE_ADDR_START)
+			<< MIPS_CDMMBASE_ADDR_SHIFT;
+	cdmmbase |= MIPS_CDMMBASE_EN;
+	write_c0_cdmmbase(cdmmbase);
+	tlbw_use_hazard();
+
+	bus->regs = (void __iomem *)CKSEG1ADDR(bus->phys);
+	bus->drbs = 1 + ((cdmmbase & MIPS_CDMMBASE_SIZE) >>
+			 MIPS_CDMMBASE_SIZE_SHIFT);
+	bus->drbs_reserved = !!(cdmmbase & MIPS_CDMMBASE_CI);
+
+out:
+	local_irq_restore(flags);
+	return ret;
+}
+
+/**
+ * mips_cdmm_early_probe() - Minimally probe for a specific device on CDMM.
+ * @dev_type:	CDMM type code to look for.
+ *
+ * Minimally configure the in-CPU Common Device Memory Map (CDMM) and look for a
+ * specific device. This can be used to find a device very early in boot for
+ * example to configure an early FDC console device.
+ *
+ * The caller must prevent migration to another CPU, either by disabling
+ * pre-emption or by running from a pinned kernel thread.
+ *
+ * Returns:	MMIO pointer to device memory. The caller can read the ACSR
+ *		register to find more information about the device (such as the
+ *		version number or the number of blocks).
+ *		May return IOMEM_ERR_PTR(-errno) in case of error, so check with
+ *		IS_ERR().
+ */
+void __iomem *mips_cdmm_early_probe(unsigned int dev_type)
+{
+	struct mips_cdmm_bus *bus;
+	void __iomem *cdmm;
+	u32 acsr;
+	unsigned int drb, type, size;
+	int err;
+
+	if (WARN_ON(!dev_type))
+		return IOMEM_ERR_PTR(-ENODEV);
+
+	bus = mips_cdmm_get_bus();
+	err = mips_cdmm_setup(bus);
+	if (err)
+		return IOMEM_ERR_PTR(err);
+
+	/* Skip the first block if it's reserved for more registers */
+	drb = bus->drbs_reserved;
+	cdmm = bus->regs;
+
+	/* Look for a specific device type */
+	for (; drb < bus->drbs; drb += size + 1) {
+		acsr = readl(cdmm + drb * CDMM_DRB_SIZE);
+		type = (acsr & CDMM_ACSR_DEVTYPE) >> CDMM_ACSR_DEVTYPE_SHIFT;
+		if (type == dev_type)
+			return cdmm + drb * CDMM_DRB_SIZE;
+		size = (acsr & CDMM_ACSR_DEVSIZE) >> CDMM_ACSR_DEVSIZE_SHIFT;
+	}
+
+	return IOMEM_ERR_PTR(-ENODEV);
+}
+EXPORT_SYMBOL_GPL(mips_cdmm_early_probe);
+
+/**
+ * mips_cdmm_release() - Release a removed CDMM device.
+ * @dev:	Device object
+ *
+ * Clean up the struct mips_cdmm_device for an unused CDMM device. This is
+ * called automatically by the driver core when a device is removed.
+ */
+static void mips_cdmm_release(struct device *dev)
+{
+	struct mips_cdmm_device *cdev = to_mips_cdmm_device(dev);
+
+	kfree(cdev);
+}
+
+/**
+ * mips_cdmm_bus_discover() - Discover the devices on the CDMM bus.
+ * @bus:	CDMM bus information, must already be set up.
+ */
+static void mips_cdmm_bus_discover(struct mips_cdmm_bus *bus)
+{
+	void __iomem *cdmm;
+	u32 acsr;
+	unsigned int drb, type, size, rev;
+	struct mips_cdmm_device *dev;
+	unsigned int cpu = smp_processor_id();
+	int ret = 0;
+	int id = 0;
+
+	/* Skip the first block if it's reserved for more registers */
+	drb = bus->drbs_reserved;
+	cdmm = bus->regs;
+
+	/* Discover devices */
+	bus->discovered = true;
+	pr_info("cdmm%u discovery (%u blocks)\n", cpu, bus->drbs);
+	for (; drb < bus->drbs; drb += size + 1) {
+		acsr = readl(cdmm + drb * CDMM_DRB_SIZE);
+		type = (acsr & CDMM_ACSR_DEVTYPE) >> CDMM_ACSR_DEVTYPE_SHIFT;
+		size = (acsr & CDMM_ACSR_DEVSIZE) >> CDMM_ACSR_DEVSIZE_SHIFT;
+		rev  = (acsr & CDMM_ACSR_DEVREV)  >> CDMM_ACSR_DEVREV_SHIFT;
+
+		if (!type)
+			continue;
+
+		pr_info("cdmm%u-%u: @%u (%#x..%#x), type 0x%02x, rev %u\n",
+			cpu, id, drb, drb * CDMM_DRB_SIZE,
+			(drb + size + 1) * CDMM_DRB_SIZE - 1,
+			type, rev);
+
+		dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+		if (!dev)
+			break;
+
+		dev->cpu = cpu;
+		dev->res.start = bus->phys + drb * CDMM_DRB_SIZE;
+		dev->res.end = bus->phys +
+				(drb + size + 1) * CDMM_DRB_SIZE - 1;
+		dev->res.flags = IORESOURCE_MEM;
+		dev->type = type;
+		dev->rev = rev;
+		dev->dev.parent = get_cpu_device(cpu);
+		dev->dev.bus = &mips_cdmm_bustype;
+		dev->dev.id = atomic_inc_return(&mips_cdmm_next_id);
+		dev->dev.release = mips_cdmm_release;
+
+		dev_set_name(&dev->dev, "cdmm%u-%u", cpu, id);
+		++id;
+		ret = device_register(&dev->dev);
+		if (ret) {
+			put_device(&dev->dev);
+			kfree(dev);
+		}
+	}
+}
+
+
+/*
+ * CPU hotplug and initialisation
+ *
+ * All the CDMM driver callbacks need to be executed on the appropriate CPU from
+ * workqueues. For the CPU callbacks, they need to be called for all devices on
+ * that CPU, so the work function calls bus_for_each_dev, using a helper
+ * (generated with BUILD_PERDEV_HELPER) to call the driver callback if the
+ * device's CPU matches.
+ */
+
+/**
+ * BUILD_PERDEV_HELPER() - Helper to call a CDMM driver callback if CPU matches.
+ * @_name:	Name of CDMM driver callback function.
+ *
+ * Generates a bus_for_each_dev callback function to call a specific CDMM driver
+ * callback function for the device if the device's CPU matches that pointed to
+ * by the data argument.
+ *
+ * This is used for informing drivers for all devices on a given CPU of some
+ * event (such as the CPU going online/offline).
+ *
+ * It is expected to already be called from the appropriate CPU.
+ */
+#define BUILD_PERDEV_HELPER(_name)					\
+static int mips_cdmm_##_name##_helper(struct device *dev, void *data)	\
+{									\
+	struct mips_cdmm_device *cdev = to_mips_cdmm_device(dev);	\
+	struct mips_cdmm_driver *cdrv;					\
+	unsigned int cpu = *(unsigned int *)data;			\
+									\
+	if (cdev->cpu != cpu || !dev->driver)				\
+		return 0;						\
+									\
+	cdrv = to_mips_cdmm_driver(dev->driver);			\
+	if (!cdrv->_name)						\
+		return 0;						\
+	return cdrv->_name(cdev);					\
+}
+
+/* bus_for_each_dev callback helper functions */
+BUILD_PERDEV_HELPER(cpu_down)       /* int mips_cdmm_cpu_down_helper(...) */
+BUILD_PERDEV_HELPER(cpu_up)         /* int mips_cdmm_cpu_up_helper(...) */
+
+/**
+ * mips_cdmm_bus_down() - Tear down the CDMM bus.
+ * @data:	Pointer to unsigned int CPU number.
+ *
+ * This work_on_cpu callback function is executed on a given CPU to call the
+ * CDMM driver cpu_down callback for all devices on that CPU.
+ */
+static long mips_cdmm_bus_down(void *data)
+{
+	struct mips_cdmm_bus *bus;
+	long ret;
+
+	/* Inform all the devices on the bus */
+	ret = bus_for_each_dev(&mips_cdmm_bustype, NULL, data,
+			       mips_cdmm_cpu_down_helper);
+
+	/*
+	 * While bus is offline, each use of it should reconfigure it just in
+	 * case it is first use when coming back online again.
+	 */
+	bus = mips_cdmm_get_bus();
+	if (!IS_ERR(bus))
+		bus->offline = true;
+
+	return ret;
+}
+
+/**
+ * mips_cdmm_bus_up() - Bring up the CDMM bus.
+ * @data:	Pointer to unsigned int CPU number.
+ *
+ * This work_on_cpu callback function is executed on a given CPU to discover
+ * CDMM devices on that CPU, or to call the CDMM driver cpu_up callback for all
+ * devices already discovered on that CPU.
+ *
+ * It is used during initialisation and when CPUs are brought online.
+ */
+static long mips_cdmm_bus_up(void *data)
+{
+	struct mips_cdmm_bus *bus;
+	long ret;
+
+	bus = mips_cdmm_get_bus();
+	ret = mips_cdmm_setup(bus);
+	if (ret)
+		return ret;
+
+	/* Bus now set up, so we can drop the offline flag if still set */
+	bus->offline = false;
+
+	if (!bus->discovered)
+		mips_cdmm_bus_discover(bus);
+	else
+		/* Inform all the devices on the bus */
+		ret = bus_for_each_dev(&mips_cdmm_bustype, NULL, data,
+				       mips_cdmm_cpu_up_helper);
+
+	return ret;
+}
+
+/**
+ * mips_cdmm_cpu_notify() - Take action when a CPU is going online or offline.
+ * @nb:		CPU notifier block .
+ * @action:	Event that has taken place (CPU_*).
+ * @data:	CPU number.
+ *
+ * This notifier is used to keep the CDMM buses updated as CPUs are offlined and
+ * onlined. When CPUs go offline or come back online, so does their CDMM bus, so
+ * devices must be informed. Also when CPUs come online for the first time the
+ * devices on the CDMM bus need discovering.
+ *
+ * Returns:	NOTIFY_OK if event was used.
+ *		NOTIFY_DONE if we didn't care.
+ */
+static int mips_cdmm_cpu_notify(struct notifier_block *nb,
+				unsigned long action, void *data)
+{
+	unsigned int cpu = (unsigned int)data;
+
+	switch (action & ~CPU_TASKS_FROZEN) {
+	case CPU_ONLINE:
+	case CPU_DOWN_FAILED:
+		work_on_cpu(cpu, mips_cdmm_bus_up, &cpu);
+		break;
+	case CPU_DOWN_PREPARE:
+		work_on_cpu(cpu, mips_cdmm_bus_down, &cpu);
+		break;
+	default:
+		return NOTIFY_DONE;
+	}
+
+	return NOTIFY_OK;
+}
+
+static struct notifier_block mips_cdmm_cpu_nb = {
+	.notifier_call = mips_cdmm_cpu_notify,
+};
+
+/**
+ * mips_cdmm_init() - Initialise CDMM bus.
+ *
+ * Initialise CDMM bus, discover CDMM devices for online CPUs, and arrange for
+ * hotplug notifications so the CDMM drivers can be kept up to date.
+ */
+static int __init mips_cdmm_init(void)
+{
+	unsigned int cpu;
+	int ret;
+
+	/* Register the bus */
+	ret = bus_register(&mips_cdmm_bustype);
+	if (ret)
+		return ret;
+
+	/* We want to be notified about new CPUs */
+	ret = register_cpu_notifier(&mips_cdmm_cpu_nb);
+	if (ret) {
+		pr_warn("cdmm: Failed to register CPU notifier\n");
+		goto out;
+	}
+
+	/* Discover devices on CDMM of online CPUs */
+	for_each_online_cpu(cpu)
+		work_on_cpu(cpu, mips_cdmm_bus_up, &cpu);
+
+	return 0;
+out:
+	bus_unregister(&mips_cdmm_bustype);
+	return ret;
+}
+subsys_initcall(mips_cdmm_init);
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index e530533b94be..3bfd56778c29 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -546,6 +546,14 @@ struct amba_id {
 	void			*data;
 };
 
+/**
+ * struct mips_cdmm_device_id - identifies devices in MIPS CDMM bus
+ * @type:	Device type identifier.
+ */
+struct mips_cdmm_device_id {
+	__u8	type;
+};
+
 /*
  * Match x86 CPUs for CPU specific drivers.
  * See documentation of "x86_match_cpu" for details.
diff --git a/scripts/mod/devicetable-offsets.c b/scripts/mod/devicetable-offsets.c
index f282516acc7b..fce36d0f6898 100644
--- a/scripts/mod/devicetable-offsets.c
+++ b/scripts/mod/devicetable-offsets.c
@@ -168,6 +168,9 @@ int main(void)
 	DEVID_FIELD(amba_id, id);
 	DEVID_FIELD(amba_id, mask);
 
+	DEVID(mips_cdmm_device_id);
+	DEVID_FIELD(mips_cdmm_device_id, type);
+
 	DEVID(x86_cpu_id);
 	DEVID_FIELD(x86_cpu_id, feature);
 	DEVID_FIELD(x86_cpu_id, family);
diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
index e614ef689eee..78691d51a479 100644
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -1109,6 +1109,22 @@ static int do_amba_entry(const char *filename,
 }
 ADD_TO_DEVTABLE("amba", amba_id, do_amba_entry);
 
+/*
+ * looks like: "mipscdmm:tN"
+ *
+ * N is exactly 2 digits, where each is an upper-case hex digit, or
+ *	a ? or [] pattern matching exactly one digit.
+ */
+static int do_mips_cdmm_entry(const char *filename,
+			      void *symval, char *alias)
+{
+	DEF_FIELD(symval, mips_cdmm_device_id, type);
+
+	sprintf(alias, "mipscdmm:t%02X*", type);
+	return 1;
+}
+ADD_TO_DEVTABLE("mipscdmm", mips_cdmm_device_id, do_mips_cdmm_entry);
+
 /* LOOKS like cpu:type:x86,venVVVVfamFFFFmodMMMM:feature:*,FEAT,*
  * All fields are numbers. It would be nicer to use strings for vendor
  * and feature, but getting those out of the build system here is too
-- 
cgit v1.2.3


From 7aacad53aeb57b7ff52399f56eb6d7d4010e72e9 Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <yamada.masahiro@socionext.com>
Date: Fri, 27 Mar 2015 20:43:35 +0900
Subject: kbuild: use relative path to include Makefile

The "MAKEFLAGS += --include-dir=$(srctree)" line in the top Makefile
allows us to do this.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 arch/arm/boot/Makefile    | 2 +-
 arch/ia64/kernel/Makefile | 2 +-
 scripts/Makefile.dtbinst  | 2 +-
 scripts/Makefile.fwinst   | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

(limited to 'scripts')

diff --git a/arch/arm/boot/Makefile b/arch/arm/boot/Makefile
index ec2f8065f955..9eca7aee927f 100644
--- a/arch/arm/boot/Makefile
+++ b/arch/arm/boot/Makefile
@@ -12,7 +12,7 @@
 #
 
 ifneq ($(MACHINE),)
-include $(srctree)/$(MACHINE)/Makefile.boot
+include $(MACHINE)/Makefile.boot
 endif
 
 # Note: the following conditions must always be true:
diff --git a/arch/ia64/kernel/Makefile b/arch/ia64/kernel/Makefile
index 20678a9ed11a..47e8aff03591 100644
--- a/arch/ia64/kernel/Makefile
+++ b/arch/ia64/kernel/Makefile
@@ -51,7 +51,7 @@ obj-$(CONFIG_BINFMT_ELF)	+= elfcore.o
 CFLAGS_traps.o  += -mfixed-range=f2-f5,f16-f31
 
 # The gate DSO image is built using a special linker script.
-include $(srctree)/arch/ia64/kernel/Makefile.gate
+include arch/ia64/kernel/Makefile.gate
 # tell compiled for native
 CPPFLAGS_gate.lds += -D__IA64_GATE_PARAVIRTUALIZED_NATIVE
 
diff --git a/scripts/Makefile.dtbinst b/scripts/Makefile.dtbinst
index 909ed7a2ac61..7cbff167341f 100644
--- a/scripts/Makefile.dtbinst
+++ b/scripts/Makefile.dtbinst
@@ -18,7 +18,7 @@ export dtbinst-root ?= $(obj)
 
 include include/config/auto.conf
 include scripts/Kbuild.include
-include $(srctree)/$(obj)/Makefile
+include $(obj)/Makefile
 
 PHONY += __dtbs_install_prep
 __dtbs_install_prep:
diff --git a/scripts/Makefile.fwinst b/scripts/Makefile.fwinst
index 5b698add4f31..baf5eaedb278 100644
--- a/scripts/Makefile.fwinst
+++ b/scripts/Makefile.fwinst
@@ -13,7 +13,7 @@ src := $(obj)
 -include $(objtree)/.config
 
 include scripts/Kbuild.include
-include $(srctree)/$(obj)/Makefile
+include $(obj)/Makefile
 
 include scripts/Makefile.host
 
-- 
cgit v1.2.3


From 5f655c7a4c9fcf7152b8a34e987d936f7b5255b8 Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <yamada.masahiro@socionext.com>
Date: Fri, 27 Mar 2015 20:43:37 +0900
Subject: kbuild: include $(src)/Makefile rather than $(obj)/Makefile

This commit actually has no impact because $(src) and $(obj) point
to the same path, but $(src)/Makefile looks better when we include
source files.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 scripts/Makefile.dtbinst | 2 +-
 scripts/Makefile.fwinst  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

(limited to 'scripts')

diff --git a/scripts/Makefile.dtbinst b/scripts/Makefile.dtbinst
index 7cbff167341f..1c15717e0d56 100644
--- a/scripts/Makefile.dtbinst
+++ b/scripts/Makefile.dtbinst
@@ -18,7 +18,7 @@ export dtbinst-root ?= $(obj)
 
 include include/config/auto.conf
 include scripts/Kbuild.include
-include $(obj)/Makefile
+include $(src)/Makefile
 
 PHONY += __dtbs_install_prep
 __dtbs_install_prep:
diff --git a/scripts/Makefile.fwinst b/scripts/Makefile.fwinst
index baf5eaedb278..b27290035253 100644
--- a/scripts/Makefile.fwinst
+++ b/scripts/Makefile.fwinst
@@ -13,7 +13,7 @@ src := $(obj)
 -include $(objtree)/.config
 
 include scripts/Kbuild.include
-include $(obj)/Makefile
+include $(src)/Makefile
 
 include scripts/Makefile.host
 
-- 
cgit v1.2.3


From bd8b22d2888e75063c9012b95341d6cb36456434 Mon Sep 17 00:00:00 2001
From: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Date: Mon, 30 Mar 2015 15:20:31 +0200
Subject: Kbuild: kallsyms: ignore veneers emitted by the ARM linker

When linking large kernels on ARM, the linker will insert veneers
(i.e., PLT like stubs) when function symbols are out of reach for
the ordinary relative branch/branch-and-link instructions.

However, due to the fact that the kallsyms region sits in .rodata,
which is between .text and .init.text, additional veneers may be
emitted in the second pass due to the fact that the size of the
kallsyms region itself has pushed the .init.text section further
apart, requiring even more veneers.

So ignore the veneers when generating the symbol table. Veneers
have no corresponding source code, and they will not turn up in
backtraces anyway.

This patch also lightly refactors the symbol_valid() function
to use a local 'sym_name' rather than the obfuscated 'sym + 1'
and 'sym + offset'

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 scripts/kallsyms.c | 30 +++++++++++++++++++++---------
 1 file changed, 21 insertions(+), 9 deletions(-)

(limited to 'scripts')

diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c
index c6d33bd15b04..f4b016782f0d 100644
--- a/scripts/kallsyms.c
+++ b/scripts/kallsyms.c
@@ -212,15 +212,23 @@ static int symbol_valid(struct sym_entry *s)
 		"_SDA_BASE_",		/* ppc */
 		"_SDA2_BASE_",		/* ppc */
 		NULL };
+
+	static char *special_suffixes[] = {
+		"_compiled.",		/* gcc < 3.0: "gcc[0-9]_compiled." */
+		"_veneer",		/* arm */
+		NULL };
+
 	int i;
-	int offset = 1;
+	char *sym_name = (char *)s->sym + 1;
+
 
 	if (s->addr < kernel_start_addr)
 		return 0;
 
 	/* skip prefix char */
-	if (symbol_prefix_char && *(s->sym + 1) == symbol_prefix_char)
-		offset++;
+	if (symbol_prefix_char && *sym_name == symbol_prefix_char)
+		sym_name++;
+
 
 	/* if --all-symbols is not specified, then symbols outside the text
 	 * and inittext sections are discarded */
@@ -235,22 +243,26 @@ static int symbol_valid(struct sym_entry *s)
 		 * rules.
 		 */
 		if ((s->addr == text_range_text->end &&
-				strcmp((char *)s->sym + offset,
+				strcmp(sym_name,
 				       text_range_text->end_sym)) ||
 		    (s->addr == text_range_inittext->end &&
-				strcmp((char *)s->sym + offset,
+				strcmp(sym_name,
 				       text_range_inittext->end_sym)))
 			return 0;
 	}
 
 	/* Exclude symbols which vary between passes. */
-	if (strstr((char *)s->sym + offset, "_compiled."))
-		return 0;
-
 	for (i = 0; special_symbols[i]; i++)
-		if( strcmp((char *)s->sym + offset, special_symbols[i]) == 0 )
+		if (strcmp(sym_name, special_symbols[i]) == 0)
 			return 0;
 
+	for (i = 0; special_suffixes[i]; i++) {
+		int l = strlen(sym_name) - strlen(special_suffixes[i]);
+
+		if (l >= 0 && strcmp(sym_name + l, special_suffixes[i]) == 0)
+			return 0;
+	}
+
 	return 1;
 }
 
-- 
cgit v1.2.3


From 41b585b2ed793db6f02ec87d0026d73382e8180a Mon Sep 17 00:00:00 2001
From: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Date: Mon, 30 Mar 2015 15:20:32 +0200
Subject: Kbuild: kallsyms: drop special handling of pre-3.0 GCC symbols

Since we have required at least GCC v3.2 for some time now, we
can drop the special handling of the 'gcc[0-9]_compiled.' label
which is not emitted anymore since GCC v3.0.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 scripts/kallsyms.c | 1 -
 1 file changed, 1 deletion(-)

(limited to 'scripts')

diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c
index f4b016782f0d..8fa81e84e295 100644
--- a/scripts/kallsyms.c
+++ b/scripts/kallsyms.c
@@ -214,7 +214,6 @@ static int symbol_valid(struct sym_entry *s)
 		NULL };
 
 	static char *special_suffixes[] = {
-		"_compiled.",		/* gcc < 3.0: "gcc[0-9]_compiled." */
 		"_veneer",		/* arm */
 		NULL };
 
-- 
cgit v1.2.3


From 1cba0c305758c3c1786ecaceb03e142c95a4edc9 Mon Sep 17 00:00:00 2001
From: Michal Marek <mmarek@suse.cz>
Date: Wed, 8 Apr 2015 11:11:57 +0200
Subject: kconfig: Simplify Makefile

Use a single rule for targets handled directly by the conf program.

Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 scripts/kconfig/Makefile | 20 ++++++++------------
 1 file changed, 8 insertions(+), 12 deletions(-)

(limited to 'scripts')

diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index cb2cf548c45c..1f5e45355731 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
 
 ifdef KBUILD_KCONFIG
@@ -29,9 +29,6 @@ config: $(obj)/conf
 nconfig: $(obj)/nconf
 	$< $(Kconfig)
 
-oldconfig: $(obj)/conf
-	$< --$@ $(Kconfig)
-
 silentoldconfig: $(obj)/conf
 	$(Q)mkdir -p include/config include/generated
 	$< --$@ $(Kconfig)
@@ -74,21 +71,20 @@ update-po-config: $(obj)/kxgettext $(obj)/gconf.glade.h
 	    --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: $(obj)/conf
+$(simple-targets): $(obj)/conf
 	$< --$@ $(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)
-- 
cgit v1.2.3


From 0a1f00a1c86421cc07cec87011c7cf4df68ee54b Mon Sep 17 00:00:00 2001
From: Michal Marek <mmarek@suse.cz>
Date: Wed, 8 Apr 2015 13:30:42 +0200
Subject: kconfig: Do not print status messages in make -s mode

Add an -s option to the various frontends and pass it when make -s is
used. Also, use $(kecho) instead of @echo in the Makefile.

Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 scripts/kconfig/Makefile | 40 ++++++++++++++++++++++------------------
 scripts/kconfig/conf.c   |  8 ++++++--
 scripts/kconfig/gconf.c  |  5 ++++-
 scripts/kconfig/mconf.c  | 31 +++++++++++++++++++++----------
 scripts/kconfig/nconf.c  |  5 +++++
 scripts/kconfig/qconf.cc |  5 ++++-
 6 files changed, 62 insertions(+), 32 deletions(-)

(limited to 'scripts')

diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index 1f5e45355731..d9b1fef0c67e 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -11,27 +11,31 @@ 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)
+	$< $(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
@@ -40,18 +44,18 @@ 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                                       \
@@ -62,11 +66,11 @@ 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
@@ -77,7 +81,7 @@ simple-targets := oldconfig allnoconfig allyesconfig allmodconfig \
 PHONY += $(simple-targets)
 
 $(simple-targets): $(obj)/conf
-	$< --$@ $(Kconfig)
+	$< $(silent) --$@ $(Kconfig)
 
 PHONY += oldnoconfig savedefconfig defconfig
 
@@ -87,18 +91,18 @@ PHONY += oldnoconfig savedefconfig defconfig
 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)
 
 configfiles=$(wildcard $(srctree)/kernel/configs/$@ $(srctree)/arch/$(SRCARCH)/configs/$@)
 
@@ -215,7 +219,7 @@ $(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 fef75fc756f4..6c204318bc94 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/gconf.c b/scripts/kconfig/gconf.c
index 344b9e340ecb..26d208b435a0 100644
--- a/scripts/kconfig/gconf.c
+++ b/scripts/kconfig/gconf.c
@@ -1474,9 +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/mconf.c b/scripts/kconfig/mconf.c
index 4dd37552abc2..315ce2c7cb9d 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);
@@ -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/nconf.c b/scripts/kconfig/nconf.c
index 984489ef2b46..d42d534a66cd 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 9d3b04b0769c..c3bb7fe8dfa6 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();
-- 
cgit v1.2.3


From 5017335d6d8c1fc3bbc04f80785440885f305879 Mon Sep 17 00:00:00 2001
From: Fabian Frederick <fabf@skynet.be>
Date: Tue, 14 Apr 2015 15:42:34 -0700
Subject: scripts/coccinelle/misc/bugon.cocci: update bug_on conversion warning

if()/BUG conversion to BUG_ON must be avoided when there's side effect
in condition.  The reason being BUG_ON won't execute the condition when
CONFIG_BUG is not defined.

With inspiration from Bruce Fields.

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Suggested-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: J. Bruce Fields <bfields@fieldses.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/coccinelle/misc/bugon.cocci | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'scripts')

diff --git a/scripts/coccinelle/misc/bugon.cocci b/scripts/coccinelle/misc/bugon.cocci
index 3b7eec24fb5a..27c97f1f2767 100644
--- a/scripts/coccinelle/misc/bugon.cocci
+++ b/scripts/coccinelle/misc/bugon.cocci
@@ -57,6 +57,6 @@ coccilib.org.print_todo(p[0], "WARNING use BUG_ON")
 p << r.p;
 @@
 
-msg="WARNING: Use BUG_ON"
+msg="WARNING: Use BUG_ON instead of if condition followed by BUG.\nPlease make sure the condition has no side effects (see conditional BUG_ON definition in include/asm-generic/bug.h)"
 coccilib.report.print_report(p[0], msg)
 
-- 
cgit v1.2.3


From 6ab3a9701e00c2a085bac6a7a9bdcf8fc5eca6c5 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Thu, 16 Apr 2015 12:44:05 -0700
Subject: checkpatch: improve "no space is necessary after a cast" test

The "no space is necessary after a cast" sizeof exclusion doesn't work
properly.

The test reports a false positive for code like:

	BUILD_BUG_ON(sizeof(struct batadv_bla_claim_dst) != 6);

Make it work, simplify the exclusions, and add some comments.

Signed-off-by: Joe Perches <joe@perches.com>
Reported-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/checkpatch.pl | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

(limited to 'scripts')

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index d12435992dea..421bbb47844f 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2552,8 +2552,15 @@ sub process {
 			}
 		}
 
-		if ($line =~ /^\+.*(\w+\s*)?\(\s*$Type\s*\)[ \t]+(?!$Assignment|$Arithmetic|[,;:\?\(\{\}\[\<\>]|&&|\|\||\\$)/ &&
-		    (!defined($1) || $1 !~ /sizeof\s*/)) {
+# check for space after cast like "(int) foo" or "(struct foo) bar"
+# avoid checking a few false positives:
+#   "sizeof(<type>)" or "__alignof__(<type>)"
+#   function pointer declarations like "(*foo)(int) = bar;"
+#   structure definitions like "(struct foo) { 0 };"
+#   multiline macros that define functions
+#   known attributes or the __attribute__ keyword
+		if ($line =~ /^\+(.*)\(\s*$Type\s*\)([ \t]++)((?![={]|\\$|$Attribute|__attribute__))/ &&
+		    (!defined($1) || $1 !~ /\b(?:sizeof|__alignof__)\s*$/)) {
 			if (CHK("SPACING",
 				"No space is necessary after a cast\n" . $herecurr) &&
 			    $fix) {
-- 
cgit v1.2.3


From 66d7a382cb5d2d40b468e68b665bbf6f9bc3400e Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Thu, 16 Apr 2015 12:44:08 -0700
Subject: checkpatch: add spell checking of email subject line

Only commit log and patch additions are checked for typos and spelling
errors currently.  Add a check of the email subject line too.

Signed-off-by: Joe Perches <joe@perches.com>
Suggested-by: Jani Nikula <jani.nikula@linux.intel.com>
Tested-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/checkpatch.pl | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'scripts')

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 421bbb47844f..c061a63afa20 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2303,7 +2303,8 @@ sub process {
 		}
 
 # Check for various typo / spelling mistakes
-		if (defined($misspellings) && ($in_commit_log || $line =~ /^\+/)) {
+		if (defined($misspellings) &&
+		    ($in_commit_log || $line =~ /^(?:\+|Subject:)/i)) {
 			while ($rawline =~ /(?:^|[^a-z@])($misspellings)(?:$|[^a-z@])/gi) {
 				my $typo = $1;
 				my $typo_fix = $spelling_fix{lc($typo)};
-- 
cgit v1.2.3


From b3e9a677fc0875c7cc26d4edf6742a1436e86c52 Mon Sep 17 00:00:00 2001
From: Jani Nikula <jani.nikula@intel.com>
Date: Thu, 16 Apr 2015 12:44:11 -0700
Subject: checkpatch: spell check reudce

References: http://mid.gmane.org/1424977312-24902-1-git-send-email-ville.syrjala@linux.intel.com

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/spelling.txt | 1 +
 1 file changed, 1 insertion(+)

(limited to 'scripts')

diff --git a/scripts/spelling.txt b/scripts/spelling.txt
index fc7fd52b5e03..bb8e4d0a1911 100644
--- a/scripts/spelling.txt
+++ b/scripts/spelling.txt
@@ -825,6 +825,7 @@ retreived||retrieved
 retreive||retrieve
 retrive||retrieve
 retuned||returned
+reudce||reduce
 reuest||request
 reuqest||request
 reutnred||returned
-- 
cgit v1.2.3


From ebfd7d62375316ff532b6b9bae9d88a29f434ba7 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Thu, 16 Apr 2015 12:44:14 -0700
Subject: checkpatch: add optional --codespell dictionary to find more typos

If a codespell dictionary exists, use it if desired.  default is off,
maybe it could be turned on later.

codespell's dictionary format allows multiple possible corrections, ignore
that for now and only use the first suggestion.

Also add \b to spelling test so that consecutive misspelled words
are found properly.

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Andy Whitcroft <apw@canonical.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Masanari Iida <standby24x7@gmail.com>
Cc: Lucas De Marchi <lucas.de.marchi@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/checkpatch.pl | 38 ++++++++++++++++++++++++++++++++++----
 1 file changed, 34 insertions(+), 4 deletions(-)

(limited to 'scripts')

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index c061a63afa20..6b79beb2751d 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -47,6 +47,8 @@ my $ignore_perl_version = 0;
 my $minimum_perl_version = 5.10.0;
 my $min_conf_desc_length = 4;
 my $spelling_file = "$D/spelling.txt";
+my $codespell = 0;
+my $codespellfile = "/usr/local/share/codespell/dictionary.txt";
 
 sub help {
 	my ($exitcode) = @_;
@@ -88,6 +90,9 @@ Options:
                              file.  It's your fault if there's no backup or git
   --ignore-perl-version      override checking of perl version.  expect
                              runtime errors.
+  --codespell                Use the codespell dictionary for spelling/typos
+                             (default:/usr/local/share/codespell/dictionary.txt)
+  --codespellfile            Use this codespell dictionary
   -h, --help, --version      display this help and exit
 
 When FILE is - read standard input.
@@ -146,6 +151,8 @@ GetOptions(
 	'ignore-perl-version!' => \$ignore_perl_version,
 	'debug=s'	=> \%debug,
 	'test-only=s'	=> \$tst_only,
+	'codespell!'	=> \$codespell,
+	'codespellfile=s'	=> \$codespellfile,
 	'h|help'	=> \$help,
 	'version'	=> \$help
 ) or help(1);
@@ -449,7 +456,6 @@ my $misspellings;
 my %spelling_fix;
 
 if (open(my $spelling, '<', $spelling_file)) {
-	my @spelling_list;
 	while (<$spelling>) {
 		my $line = $_;
 
@@ -461,15 +467,39 @@ if (open(my $spelling, '<', $spelling_file)) {
 
 		my ($suspect, $fix) = split(/\|\|/, $line);
 
-		push(@spelling_list, $suspect);
 		$spelling_fix{$suspect} = $fix;
 	}
 	close($spelling);
-	$misspellings = join("|", @spelling_list);
 } else {
 	warn "No typos will be found - file '$spelling_file': $!\n";
 }
 
+if ($codespell) {
+	if (open(my $spelling, '<', $codespellfile)) {
+		while (<$spelling>) {
+			my $line = $_;
+
+			$line =~ s/\s*\n?$//g;
+			$line =~ s/^\s*//g;
+
+			next if ($line =~ m/^\s*#/);
+			next if ($line =~ m/^\s*$/);
+			next if ($line =~ m/, disabled/i);
+
+			$line =~ s/,.*$//;
+
+			my ($suspect, $fix) = split(/->/, $line);
+
+			$spelling_fix{$suspect} = $fix;
+		}
+		close($spelling);
+	} else {
+		warn "No codespell typos will be found - file '$codespellfile': $!\n";
+	}
+}
+
+$misspellings = join("|", sort keys %spelling_fix) if keys %spelling_fix;
+
 sub build_types {
 	my $mods = "(?x:  \n" . join("|\n  ", @modifierList) . "\n)";
 	my $all = "(?x:  \n" . join("|\n  ", @typeList) . "\n)";
@@ -2305,7 +2335,7 @@ sub process {
 # Check for various typo / spelling mistakes
 		if (defined($misspellings) &&
 		    ($in_commit_log || $line =~ /^(?:\+|Subject:)/i)) {
-			while ($rawline =~ /(?:^|[^a-z@])($misspellings)(?:$|[^a-z@])/gi) {
+			while ($rawline =~ /(?:^|[^a-z@])($misspellings)(?:\b|$|[^a-z@])/gi) {
 				my $typo = $1;
 				my $typo_fix = $spelling_fix{lc($typo)};
 				$typo_fix = ucfirst($typo_fix) if ($typo =~ /^[A-Z]/);
-- 
cgit v1.2.3


From b392c64f59d7b088aefb4e86d208cd6d3b93eefb Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Thu, 16 Apr 2015 12:44:16 -0700
Subject: checkpatch: match more world writable permissions

Currently checkpatch will fuss if one uses world writable settings in
debugfs files and DEVICE_ATTR uses by testing S_IWUGO but not testing
S_IWOTH, S_IRWXUGO or S_IALLUGO.

Extend the check to catch all cases exporting world writable permissions
including octal values.

[akpm@linux-foundation.org: remove stray $]
Signed-off-by: Joe Perches <joe@perches.com>
Original-patch-by: Nicholas Mc Guire <hofrat@osadl.org>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/checkpatch.pl | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

(limited to 'scripts')

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 6b79beb2751d..5748c35d0342 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -443,6 +443,14 @@ foreach my $entry (@mode_permission_funcs) {
 	$mode_perms_search .= $entry->[0];
 }
 
+our $mode_perms_world_writable = qr{
+	S_IWUGO		|
+	S_IWOTH		|
+	S_IRWXUGO	|
+	S_IALLUGO	|
+	0[0-7][0-7][2367]
+}x;
+
 our $allowed_asm_includes = qr{(?x:
 	irq|
 	memory|
@@ -5356,8 +5364,8 @@ sub process {
 			}
 		}
 
-		if ($line =~ /debugfs_create_file.*S_IWUGO/ ||
-		    $line =~ /DEVICE_ATTR.*S_IWUGO/ ) {
+		if ($line =~ /debugfs_create_\w+.*\b$mode_perms_world_writable\b/ ||
+		    $line =~ /DEVICE_ATTR.*\b$mode_perms_world_writable\b/) {
 			WARN("EXPORTED_WORLD_WRITABLE",
 			     "Exporting world writable files is usually an error. Consider more restrictive permissions.\n" . $herecurr);
 		}
-- 
cgit v1.2.3


From f34e4a4f979c0d39f741bc809127fcf2167a7389 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Thu, 16 Apr 2015 12:44:19 -0700
Subject: checkpatch: improve return negative errno check

Add a few conditions to the test to find
	return (ERRNO);

Make the output message a bit less cryptic too.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/checkpatch.pl | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'scripts')

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 5748c35d0342..45babf2243f3 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -4009,12 +4009,12 @@ sub process {
 			}
 		}
 
-# Return of what appears to be an errno should normally be -'ve
-		if ($line =~ /^.\s*return\s*(E[A-Z]*)\s*;/) {
+# Return of what appears to be an errno should normally be negative
+		if ($sline =~ /\breturn(?:\s*\(+\s*|\s+)(E[A-Z]+)(?:\s*\)+\s*|\s*)[;:,]/) {
 			my $name = $1;
 			if ($name ne 'EOF' && $name ne 'ERROR') {
 				WARN("USE_NEGATIVE_ERRNO",
-				     "return of an errno should typically be -ve (return -$1)\n" . $herecurr);
+				     "return of an errno should typically be negative (ie: return -$1)\n" . $herecurr);
 			}
 		}
 
-- 
cgit v1.2.3


From ab7e23f3448e55f4808f443a7b98ded6707701bb Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Thu, 16 Apr 2015 12:44:22 -0700
Subject: checkpatch: add test for repeated const uses

Using 'const <type> const *' is generally meant to be written 'const
<type> * const'.

Add a test for the miswritten form.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/checkpatch.pl | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

(limited to 'scripts')

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 45babf2243f3..d54a814a4bc8 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -323,6 +323,7 @@ our $Operators	= qr{
 
 our $c90_Keywords = qr{do|for|while|if|else|return|goto|continue|switch|default|case|break}x;
 
+our $BasicType;
 our $NonptrType;
 our $NonptrTypeMisordered;
 our $NonptrTypeWithAttr;
@@ -514,6 +515,11 @@ sub build_types {
 	my $Misordered = "(?x:  \n" . join("|\n  ", @typeListMisordered) . "\n)";
 	my $allWithAttr = "(?x:  \n" . join("|\n  ", @typeListWithAttr) . "\n)";
 	$Modifier	= qr{(?:$Attribute|$Sparse|$mods)};
+	$BasicType	= qr{
+				(?:$typeOtherOSTypedefs\b)|
+				(?:$typeTypedefs\b)|
+				(?:${all}\b)
+		}x;
 	$NonptrType	= qr{
 			(?:$Modifier\s+|const\s+)*
 			(?:
@@ -3192,6 +3198,18 @@ sub process {
 				$herecurr);
                }
 
+# check for const <foo> const where <foo> is not a pointer or array type
+		if ($sline =~ /\bconst\s+($BasicType)\s+const\b/) {
+			my $found = $1;
+			if ($sline =~ /\bconst\s+\Q$found\E\s+const\b\s*\*/) {
+				WARN("CONST_CONST",
+				     "'const $found const *' should probably be 'const $found * const'\n" . $herecurr);
+			} elsif ($sline !~ /\bconst\s+\Q$found\E\s+const\s+\w+\s*\[/) {
+				WARN("CONST_CONST",
+				     "'const $found const' should probably be 'const $found'\n" . $herecurr);
+			}
+		}
+
 # check for non-global char *foo[] = {"bar", ...} declarations.
 		if ($line =~ /^.\s+(?:static\s+|const\s+)?char\s+\*\s*\w+\s*\[\s*\]\s*=\s*\{/) {
 			WARN("STATIC_CONST_CHAR_ARRAY",
-- 
cgit v1.2.3


From 0e212e0a720601fabda102f7998d27625f9e144a Mon Sep 17 00:00:00 2001
From: Fabian Frederick <fabf@skynet.be>
Date: Thu, 16 Apr 2015 12:44:25 -0700
Subject: checkpatch: don't ask for asm/file.h to linux/file.h unconditionally

Currently checkpatch warns when asm/file.h is included and linux/file.h
exists.  That conversion can be made when linux/file.h includes asm/file.h
which is not always the case.(See signal.h)

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Cc: Andy Whitcroft <apw@canonical.com>
Acked-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/checkpatch.pl | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

(limited to 'scripts')

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index d54a814a4bc8..c72e7ee1000b 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -4242,7 +4242,8 @@ sub process {
 			}
 		}
 
-#warn if <asm/foo.h> is #included and <linux/foo.h> is available (uses RAW line)
+# warn if <asm/foo.h> is #included and <linux/foo.h> is available and includes
+# itself <asm/foo.h> (uses RAW line)
 		if ($tree && $rawline =~ m{^.\s*\#\s*include\s*\<asm\/(.*)\.h\>}) {
 			my $file = "$1.h";
 			my $checkfile = "include/linux/$file";
@@ -4250,12 +4251,15 @@ sub process {
 			    $realfile ne $checkfile &&
 			    $1 !~ /$allowed_asm_includes/)
 			{
-				if ($realfile =~ m{^arch/}) {
-					CHK("ARCH_INCLUDE_LINUX",
-					    "Consider using #include <linux/$file> instead of <asm/$file>\n" . $herecurr);
-				} else {
-					WARN("INCLUDE_LINUX",
-					     "Use #include <linux/$file> instead of <asm/$file>\n" . $herecurr);
+				my $asminclude = `grep -Ec "#include\\s+<asm/$file>" $root/$checkfile`;
+				if ($asminclude > 0) {
+					if ($realfile =~ m{^arch/}) {
+						CHK("ARCH_INCLUDE_LINUX",
+						    "Consider using #include <linux/$file> instead of <asm/$file>\n" . $herecurr);
+					} else {
+						WARN("INCLUDE_LINUX",
+						     "Use #include <linux/$file> instead of <asm/$file>\n" . $herecurr);
+					}
 				}
 			}
 		}
-- 
cgit v1.2.3


From 2a076f40d8c9be95bee7bcf18436655e1140447f Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Thu, 16 Apr 2015 12:44:28 -0700
Subject: checkpatch, SubmittingPatches: suggest line wrapping commit messages
 at 75 columns

Commit messages lines are sometimes overly long.

Suggest line wrapping at 75 columns so the default git commit log
indentation of 4 plus the commit message text still fits on an 80 column
screen.

Add a checkpatch test for long commit messages lines too.

Signed-off-by: Joe Perches <joe@perches.com>
Cc: David Miller <davem@davemloft.net>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Ian Morris <ipm@chirality.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 Documentation/SubmittingPatches | 4 ++--
 scripts/checkpatch.pl           | 9 +++++++++
 2 files changed, 11 insertions(+), 2 deletions(-)

(limited to 'scripts')

diff --git a/Documentation/SubmittingPatches b/Documentation/SubmittingPatches
index 447671bd2927..b03a832a08e2 100644
--- a/Documentation/SubmittingPatches
+++ b/Documentation/SubmittingPatches
@@ -614,8 +614,8 @@ The canonical patch message body contains the following:
 
   - An empty line.
 
-  - The body of the explanation, which will be copied to the
-    permanent changelog to describe this patch.
+  - The body of the explanation, line wrapped at 75 columns, which will
+    be copied to the permanent changelog to describe this patch.
 
   - The "Signed-off-by:" lines, described above, which will
     also go in the changelog.
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index c72e7ee1000b..9a8b2bd14dc2 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1898,6 +1898,7 @@ sub process {
 
 	my $in_header_lines = $file ? 0 : 1;
 	my $in_commit_log = 0;		#Scanning lines before patch
+	my $commit_log_long_line = 0;
 	my $reported_maintainer_file = 0;
 	my $non_utf8_charset = 0;
 
@@ -2233,6 +2234,14 @@ sub process {
 			      "Remove Gerrit Change-Id's before submitting upstream.\n" . $herecurr);
 		}
 
+# Check for line lengths > 75 in commit log, warn once
+		if ($in_commit_log && !$commit_log_long_line &&
+		    length($line) > 75) {
+			WARN("COMMIT_LOG_LONG_LINE",
+			     "Possible unwrapped commit description (prefer a maximum 75 chars per line)\n" . $herecurr);
+			$commit_log_long_line = 1;
+		}
+
 # Check for git id commit length and improperly formed commit descriptions
 		if ($in_commit_log && $line =~ /\b(c)ommit\s+([0-9a-f]{5,})/i) {
 			my $init_char = $1;
-- 
cgit v1.2.3


From 29a3c46673a5e3ee22feaba7020a280486c78f0a Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Thu, 16 Apr 2015 12:44:30 -0700
Subject: checkpatch: add #define foo "string" long line exception

There are #defines with long string constants like:
	#define foo "some really long string > 80 columns"
Add a long line exception for them.

Miscellanea:

Use the $String variable for slightly better readability

Signed-off-by: Joe Perches <joe@perches.com>
Reported-by: Madalin-Cristian Bucur <madalin.bucur@freescale.com>
Cc: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/checkpatch.pl | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'scripts')

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 9a8b2bd14dc2..36d7e704af8f 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2513,8 +2513,9 @@ sub process {
 #line length limit
 		if ($line =~ /^\+/ && $prevrawline !~ /\/\*\*/ &&
 		    $rawline !~ /^.\s*\*\s*\@$Ident\s/ &&
-		    !($line =~ /^\+\s*$logFunctions\s*\(\s*(?:(KERN_\S+\s*|[^"]*))?"[X\t]*"\s*(?:|,|\)\s*;)\s*$/ ||
-		    $line =~ /^\+\s*"[^"]*"\s*(?:\s*|,|\)\s*;)\s*$/) &&
+		    !($line =~ /^\+\s*$logFunctions\s*\(\s*(?:(KERN_\S+\s*|[^"]*))?$String\s*(?:|,|\)\s*;)\s*$/ ||
+		      $line =~ /^\+\s*$String\s*(?:\s*|,|\)\s*;)\s*$/ ||
+		      $line =~ /^\+\s*#\s*define\s+\w+\s+$String$/) &&
 		    $length > $max_line_length)
 		{
 			WARN("LONG_LINE",
-- 
cgit v1.2.3


From 6d07d01b62b2d81500803058f736b46677ec873a Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Thu, 16 Apr 2015 12:44:33 -0700
Subject: checkpatch: add uart_ops to normally const structs

Add another struct to the list of normally const struct types

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Andy Whitcroft <apw@shadowen.org>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/checkpatch.pl | 1 +
 1 file changed, 1 insertion(+)

(limited to 'scripts')

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 36d7e704af8f..ea628ebfa20e 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -5339,6 +5339,7 @@ sub process {
 				stacktrace_ops|
 				sysfs_ops|
 				tty_operations|
+				uart_ops|
 				usb_mon_operations|
 				wd_ops}x;
 		if ($line !~ /\bconst\b/ &&
-- 
cgit v1.2.3


From b598b67060f14eb8c34d0cef1db4727dab56ef91 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Thu, 16 Apr 2015 12:44:36 -0700
Subject: checkpatch: add 'Prefer ARRAY_SIZE" test

Add a test for sizeof(foo)/sizeof(foo[0]) that could be ARRAY_SIZE(foo).

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/checkpatch.pl | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'scripts')

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index ea628ebfa20e..6c11cb61e9f4 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3227,6 +3227,19 @@ sub process {
 				$herecurr);
                }
 
+# check for sizeof(foo)/sizeof(foo[0]) that could be ARRAY_SIZE(foo)
+		if ($line =~ m@\bsizeof\s*\(\s*($Lval)\s*\)@) {
+			my $array = $1;
+			if ($line =~ m@\b(sizeof\s*\(\s*\Q$array\E\s*\)\s*/\s*sizeof\s*\(\s*\Q$array\E\s*\[\s*0\s*\]\s*\))@) {
+				my $array_div = $1;
+				if (WARN("ARRAY_SIZE",
+					 "Prefer ARRAY_SIZE($array)\n" . $herecurr) &&
+				    $fix) {
+					$fixed[$fixlinenr] =~ s/\Q$array_div\E/ARRAY_SIZE($array)/;
+				}
+			}
+		}
+
 # check for function declarations without arguments like "int foo()"
 		if ($line =~ /(\b$Type\s+$Ident)\s*\(\s*\)/) {
 			if (ERROR("FUNCTION_WITHOUT_ARGS",
-- 
cgit v1.2.3


From d7fe8065ad891a2ad38b73ff10b97d08f0fb3b0b Mon Sep 17 00:00:00 2001
From: Sam Bobroff <sam.bobroff@au1.ibm.com>
Date: Thu, 16 Apr 2015 12:44:39 -0700
Subject: checkpatch: improve operator spacing check

Code such as:
       x = timercmp(&now, &end, <);
Will currently trigger a checkpatch error. e.g.

ERROR: spaces required around that '<'

This is because the "Ignore operators passed as parameters" check looks
only for a comma following the operator.  Improve the check by also
looking for a close parenthesis.

Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/checkpatch.pl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'scripts')

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 6c11cb61e9f4..78a951f80706 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3652,7 +3652,7 @@ sub process {
 
 				# Ignore operators passed as parameters.
 				if ($op_type ne 'V' &&
-				    $ca =~ /\s$/ && $cc =~ /^\s*,/) {
+				    $ca =~ /\s$/ && $cc =~ /^\s*[,\)]/) {
 
 #				# Ignore comments
 #				} elsif ($op =~ /^$;+$/) {
-- 
cgit v1.2.3


From c17893c7407fbe988f5901596c3e5e75c0dc0f67 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Thu, 16 Apr 2015 12:44:42 -0700
Subject: checkpatch: add a test for const with __read_mostly uses

const objects shouldn't be __read_mostly.  They are read-only.

Marking these objects as __read_mostly causes section conflicts with LTO
linking.

So add a test to try to avoid this issue.

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Andy Whitcroft <apw@shadowen.org>
Cc: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/checkpatch.pl | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'scripts')

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 78a951f80706..28516587baba 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -4791,6 +4791,16 @@ sub process {
 			}
 		}
 
+# check for __read_mostly with const non-pointer (should just be const)
+		if ($line =~ /\b__read_mostly\b/ &&
+		    $line =~ /($Type)\s*$Ident/ && $1 !~ /\*\s*$/ && $1 =~ /\bconst\b/) {
+			if (ERROR("CONST_READ_MOSTLY",
+				  "Invalid use of __read_mostly with const type\n" . $herecurr) &&
+			    $fix) {
+				$fixed[$fixlinenr] =~ s/\s+__read_mostly\b//;
+			}
+		}
+
 # don't use __constant_<foo> functions outside of include/uapi/
 		if ($realfile !~ m@^include/uapi/@ &&
 		    $line =~ /(__constant_(?:htons|ntohs|[bl]e(?:16|32|64)_to_cpu|cpu_to_[bl]e(?:16|32|64)))\s*\(/) {
-- 
cgit v1.2.3


From 91c9afaf97ee554d2cd3042a5ad01ad21c99e8c4 Mon Sep 17 00:00:00 2001
From: Andy Lutomirski <luto@amacapital.net>
Date: Thu, 16 Apr 2015 12:44:44 -0700
Subject: checkpatch.pl: new instances of ENOSYS are errors

ENOSYS means that a nonexistent system call was called.  We have a
bad habit of using it for things like invalid operations on
otherwise valid syscalls.  We should avoid this in new code.

Pervasive incorrect usage of ENOSYS came up at the kernel summit ABI
review discussion.  Let's see if checkpatch can help.

I'll submit a separate patch for include/uapi/asm-generic/errno.h.

Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/checkpatch.pl | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'scripts')

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 28516587baba..561f41ef531f 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3396,6 +3396,14 @@ sub process {
 			     "Prefer dev_$level(... to dev_printk(KERN_$orig, ...\n" . $herecurr);
 		}
 
+# ENOSYS means "bad syscall nr" and nothing else.  This will have a small
+# number of false positives, but assembly files are not checked, so at
+# least the arch entry code will not trigger this warning.
+		if ($line =~ /\bENOSYS\b/) {
+			WARN("ENOSYS",
+			     "ENOSYS means 'invalid syscall nr' and nothing else\n" . $herecurr);
+		}
+
 # function brace can't be on same line, except for #defines of do while,
 # or if closed on same line
 		if (($line=~/$Type\s*$Ident\(.*\).*\s*{/) and
-- 
cgit v1.2.3


From 323b267faff4db5f2424b6c09ab78a272393b69e Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Thu, 16 Apr 2015 12:44:50 -0700
Subject: checkpatch: fix --fix use with a patch of multiple files

If a patch touches multiple files, the --fix and --fix-inplace option
doesn't keep the proper line count and makes the new patch file not able
to be applied via bad offset line numbers when lines are added or deleted
by the --fix option.

Dunno how that extra backslash snuck in there.

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/checkpatch.pl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'scripts')

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 561f41ef531f..35aecb3b013c 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1690,7 +1690,7 @@ sub fix_inserted_deleted_lines {
 	foreach my $old_line (@{$linesRef}) {
 		my $save_line = 1;
 		my $line = $old_line;	#don't modify the array
-		if ($line =~ /^(?:\+\+\+\|\-\-\-)\s+\S+/) {	#new filename
+		if ($line =~ /^(?:\+\+\+|\-\-\-)\s+\S+/) {	#new filename
 			$delta_offset = 0;
 		} elsif ($line =~ /^\@\@ -\d+,\d+ \+\d+,\d+ \@\@/) {	#new hunk
 			$range_last_linenr = $new_linenr;
-- 
cgit v1.2.3


From e0df7e1faebad9a7ac0931d03f86fcd5c0d1896e Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Thu, 16 Apr 2015 12:44:53 -0700
Subject: checkpatch: avoid "spaces required around that ':'" false positive

Since commit 1f65f947a6a8 ("checkpatch: add checks for question mark and
colon spacing") back in 2008, checkpatch has reported false positive for
asm volatile uses of "::" checkpatch thinks colons should always have
spaces around it.

Add an exception for colons with colons on either side for this valid asm
volatile (and c++) use.

Signed-off-by: Joe Perches <joe@perches.com>
Reported-by: Yehuda Yitschak <yehuday@marvell.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/checkpatch.pl | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'scripts')

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 35aecb3b013c..89b1df4e72ab 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3845,6 +3845,14 @@ sub process {
 					    	$ok = 1;
 					}
 
+					# for asm volatile statements
+					# ignore a colon with another
+					# colon immediately before or after
+					if (($op eq ':') &&
+					    ($ca =~ /:$/ || $cc =~ /^:/)) {
+						$ok = 1;
+					}
+
 					# messages are ERROR, but ?: are CHK
 					if ($ok == 0) {
 						my $msg_type = \&ERROR;
-- 
cgit v1.2.3


From 6e54abac1b8e0b7febffdbad37b605daef1cfcff Mon Sep 17 00:00:00 2001
From: Andrey Ryabinin <a.ryabinin@samsung.com>
Date: Thu, 16 Apr 2015 12:44:58 -0700
Subject: kasan: Makefile: shut up warnings if CONFIG_COMPILE_TEST=y

It might be annoying to constantly see this:

	scripts/Makefile.kasan:16: Cannot use CONFIG_KASAN: -fsanitize=kernel-address is not supported by compiler

while performing allmodconfig/allyesconfig build tests.
Disable this warning if CONFIG_COMPILE_TEST=y.

Signed-off-by: Andrey Ryabinin <a.ryabinin@samsung.com>
Cc: Michal Marek <mmarek@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/Makefile.kasan | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

(limited to 'scripts')

diff --git a/scripts/Makefile.kasan b/scripts/Makefile.kasan
index 631619b2b118..3f874d24234f 100644
--- a/scripts/Makefile.kasan
+++ b/scripts/Makefile.kasan
@@ -13,12 +13,16 @@ CFLAGS_KASAN := $(call cc-option, -fsanitize=kernel-address \
 		--param asan-instrumentation-with-call-threshold=$(call_threshold))
 
 ifeq ($(call cc-option, $(CFLAGS_KASAN_MINIMAL) -Werror),)
+   ifneq ($(CONFIG_COMPILE_TEST),y)
         $(warning Cannot use CONFIG_KASAN: \
             -fsanitize=kernel-address is not supported by compiler)
+   endif
 else
     ifeq ($(CFLAGS_KASAN),)
-        $(warning CONFIG_KASAN: compiler does not support all options.\
-            Trying minimal configuration)
+        ifneq ($(CONFIG_COMPILE_TEST),y)
+            $(warning CONFIG_KASAN: compiler does not support all options.\
+                Trying minimal configuration)
+        endif
         CFLAGS_KASAN := $(CFLAGS_KASAN_MINIMAL)
     endif
 endif
-- 
cgit v1.2.3