Merge branch 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild

Pull kbuild misc updates from Michal Marek:
 "This is the non-critical part of kbuild for v3.16-rc1:
   - make deb-pkg can do s390x and arm64
   - new patterns in scripts/tags.sh
   - scripts/tags.sh skips userspace tools' sources (which sometimes
     have copies of kernel structures) and symlinks
   - improvements to the objdiff tool
   - two new coccinelle patches
   - other minor fixes"

* 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  scripts: objdiff: support directories for the augument of record command
  scripts: objdiff: fix a comment
  scripts: objdiff: change the extension of disassembly from .o to .dis
  scripts: objdiff: improve path flexibility for record command
  scripts: objdiff: remove unnecessary code
  scripts: objdiff: direct error messages to stderr
  scripts: objdiff: get the path to .tmp_objdiff more simply
  deb-pkg: Add automatic support for s390x architecture
  coccicheck: Add unneeded return variable test
  kbuild: Fix a typo in documentation
  kbuild: trivial - use tabs for code indent where possible
  kbuild: trivial - remove trailing empty lines
  coccinelle: Check for missing NULL terminators in of_device_id tables
  scripts/tags.sh: ignore symlink'ed source files
  scripts/tags.sh: add regular expression replacement pattern for memcg
  builddeb: add arm64 in the supported architectures
  builddeb: use $OBJCOPY variable instead of objcopy
  scripts/tags.sh: ignore code of user space tools
  scripts/tags.sh: add pattern for DEFINE_HASHTABLE
  .gitignore: ignore Module.symvers in all directories

48 files changed, 290 insertions, 159 deletions

diff --git a/scripts/Makefile.asm-generic b/scripts/Makefile.asm-generic
index d17e0ea911ed..045e0098e962 100644
--- a/scripts/Makefile.asm-generic
+++ b/scripts/Makefile.asm-generic
@@ -21,4 +21,3 @@ all: $(patsubst %, $(obj)/%, $(generic-y))
 
 $(obj)/%.h:
 	$(call cmd,wrap)
-
diff --git a/scripts/Makefile.host b/scripts/Makefile.host
index 0f0d6ba87e42..66893643fd7d 100644
--- a/scripts/Makefile.host
+++ b/scripts/Makefile.host
@@ -167,4 +167,3 @@ $(host-cshlib): $(obj)/%: $(host-cshobjs) FORCE
 
 targets += $(host-csingle)  $(host-cmulti) $(host-cobjs)\
 	   $(host-cxxmulti) $(host-cxxobjs) $(host-cshlib) $(host-cshobjs)
-
diff --git a/scripts/basic/fixdep.c b/scripts/basic/fixdep.c
index 078fe1d64e7d..b30406860b73 100644
--- a/scripts/basic/fixdep.c
+++ b/scripts/basic/fixdep.c
@@ -409,10 +409,10 @@ static void print_deps(void)
 		exit(2);
 	}
 	if (fstat(fd, &st) < 0) {
-                fprintf(stderr, "fixdep: error fstat'ing depfile: ");
-                perror(depfile);
-                exit(2);
-        }
+		fprintf(stderr, "fixdep: error fstat'ing depfile: ");
+		perror(depfile);
+		exit(2);
+	}
 	if (st.st_size == 0) {
 		fprintf(stderr,"fixdep: %s is empty\n",depfile);
 		close(fd);
diff --git a/scripts/checkstack.pl b/scripts/checkstack.pl
index 544aa56b6200..c05d586b1fee 100755
--- a/scripts/checkstack.pl
+++ b/scripts/checkstack.pl
@@ -173,4 +173,3 @@ while (my $line = <STDIN>) {
 
 # Sort output by size (last field)
 print sort { ($b =~ /:\t*(\d+)$/)[0] <=> ($a =~ /:\t*(\d+)$/)[0] } @stack;
-
diff --git a/scripts/coccinelle/misc/of_table.cocci b/scripts/coccinelle/misc/of_table.cocci
new file mode 100644
index 000000000000..3c934046a060
--- /dev/null
+++ b/scripts/coccinelle/misc/of_table.cocci
@@ -0,0 +1,62 @@
+/// Make sure of_device_id tables are NULL terminated
+//
+// Keywords: of_table
+// Confidence: Medium
+// Options: --include-headers
+
+virtual patch
+virtual context
+virtual org
+virtual report
+
+@depends on context@
+identifier var, arr;
+expression E;
+@@
+struct of_device_id arr[] = {
+	...,
+	{
+	.var = E,
+*	}
+};
+
+@depends on patch@
+identifier var, arr;
+expression E;
+@@
+struct of_device_id arr[] = {
+	...,
+	{
+	.var = E,
+-	}
++	},
++	{ }
+};
+
+@r depends on org || report@
+position p1;
+identifier var, arr;
+expression E;
+@@
+struct of_device_id arr[] = {
+	...,
+	{
+	.var = E,
+	}
+	@p1
+};
+
+@script:python depends on org@
+p1 << r.p1;
+arr << r.arr;
+@@
+
+cocci.print_main(arr,p1)
+
+@script:python depends on report@
+p1 << r.p1;
+arr << r.arr;
+@@
+
+msg = "%s is not NULL terminated at line %s" % (arr, p1[0].line)
+coccilib.report.print_report(p1[0],msg)
diff --git a/scripts/coccinelle/misc/returnvar.cocci b/scripts/coccinelle/misc/returnvar.cocci
new file mode 100644
index 000000000000..605955a91c44
--- /dev/null
+++ b/scripts/coccinelle/misc/returnvar.cocci
@@ -0,0 +1,66 @@
+///
+/// Removes unneeded variable used to store return value.
+///
+// Confidence: Moderate
+// Copyright: (C) 2012 Peter Senna Tschudin, INRIA/LIP6.  GPLv2.
+// URL: http://coccinelle.lip6.fr/
+// Comments: Comments on code can be deleted if near code that is removed.
+//           "when strict" can be removed to get more hits, but adds false
+//           positives
+// Options: --no-includes --include-headers
+
+virtual patch
+virtual report
+virtual context
+virtual org
+
+@depends on patch@
+type T;
+constant C;
+identifier ret;
+@@
+- T ret = C;
+... when != ret
+    when strict
+return
+- ret
++ C
+;
+
+@depends on context@
+type T;
+constant C;
+identifier ret;
+@@
+* T ret = C;
+... when != ret
+    when strict
+* return ret;
+
+@r1 depends on report || org@
+type T;
+constant C;
+identifier ret;
+position p1, p2;
+@@
+T ret@p1 = C;
+... when != ret
+    when strict
+return ret@p2;
+
+@script:python depends on report@
+p1 << r1.p1;
+p2 << r1.p2;
+C << r1.C;
+ret << r1.ret;
+@@
+coccilib.report.print_report(p1[0], "Unneeded variable: \"" + ret + "\". Return \"" + C + "\" on line " + p2[0].line)
+
+@script:python depends on org@
+p1 << r1.p1;
+p2 << r1.p2;
+C << r1.C;
+ret << r1.ret;
+@@
+cocci.print_main("unneeded \"" + ret + "\" variable", p1)
+cocci.print_sec("return " + C + " here", p2)
diff --git a/scripts/config b/scripts/config
index 68041793698c..026aeb4f32ee 100755
--- a/scripts/config
+++ b/scripts/config
@@ -223,4 +223,3 @@ while [ "$1" != "" ] ; do
 		;;
 	esac
 done
-
diff --git a/scripts/docproc.c b/scripts/docproc.c
index 2b69eaf5b646..e267e621431a 100644
--- a/scripts/docproc.c
+++ b/scripts/docproc.c
@@ -154,7 +154,7 @@ int symfilecnt = 0;
 static void add_new_symbol(struct symfile *sym, char * symname)
 {
 	sym->symbollist =
-          realloc(sym->symbollist, (sym->symbolcnt + 1) * sizeof(char *));
+	  realloc(sym->symbollist, (sym->symbolcnt + 1) * sizeof(char *));
 	sym->symbollist[sym->symbolcnt++].name = strdup(symname);
 }
 
@@ -215,7 +215,7 @@ static void find_export_symbols(char * filename)
 			char *p;
 			char *e;
 			if (((p = strstr(line, "EXPORT_SYMBOL_GPL")) != NULL) ||
-                            ((p = strstr(line, "EXPORT_SYMBOL")) != NULL)) {
+			    ((p = strstr(line, "EXPORT_SYMBOL")) != NULL)) {
 				/* Skip EXPORT_SYMBOL{_GPL} */
 				while (isalnum(*p) || *p == '_')
 					p++;
@@ -291,28 +291,28 @@ static void extfunc(char * filename) { docfunctions(filename, FUNCTION);   }
 static void singfunc(char * filename, char * line)
 {
 	char *vec[200]; /* Enough for specific functions */
-        int i, idx = 0;
-        int startofsym = 1;
+	int i, idx = 0;
+	int startofsym = 1;
 	vec[idx++] = KERNELDOC;
 	vec[idx++] = DOCBOOK;
 	vec[idx++] = SHOWNOTFOUND;
 
-        /* Split line up in individual parameters preceded by FUNCTION */
-        for (i=0; line[i]; i++) {
-                if (isspace(line[i])) {
-                        line[i] = '\0';
-                        startofsym = 1;
-                        continue;
-                }
-                if (startofsym) {
-                        startofsym = 0;
-                        vec[idx++] = FUNCTION;
-                        vec[idx++] = &line[i];
-                }
-        }
+	/* Split line up in individual parameters preceded by FUNCTION */
+	for (i=0; line[i]; i++) {
+		if (isspace(line[i])) {
+			line[i] = '\0';
+			startofsym = 1;
+			continue;
+		}
+		if (startofsym) {
+			startofsym = 0;
+			vec[idx++] = FUNCTION;
+			vec[idx++] = &line[i];
+		}
+	}
 	for (i = 0; i < idx; i++) {
-        	if (strcmp(vec[i], FUNCTION))
-        		continue;
+		if (strcmp(vec[i], FUNCTION))
+			continue;
 		consume_symbol(vec[i + 1]);
 	}
 	vec[idx++] = filename;
@@ -460,14 +460,14 @@ static void parse_file(FILE *infile)
 					break;
 				case 'D':
 					while (*s && !isspace(*s)) s++;
-                                        *s = '\0';
-                                        symbolsonly(line+2);
-                                        break;
+					*s = '\0';
+					symbolsonly(line+2);
+					break;
 				case 'F':
 					/* filename */
 					while (*s && !isspace(*s)) s++;
 					*s++ = '\0';
-                                        /* function names */
+					/* function names */
 					while (isspace(*s))
 						s++;
 					singlefunctions(line +2, s);
@@ -515,11 +515,11 @@ int main(int argc, char *argv[])
 	}
 	/* Open file, exit on error */
 	infile = fopen(argv[2], "r");
-        if (infile == NULL) {
-                fprintf(stderr, "docproc: ");
-                perror(argv[2]);
-                exit(2);
-        }
+	if (infile == NULL) {
+		fprintf(stderr, "docproc: ");
+		perror(argv[2]);
+		exit(2);
+	}
 
 	if (strcmp("doc", argv[1]) == 0) {
 		/* Need to do this in two passes.
diff --git a/scripts/dtc/.gitignore b/scripts/dtc/.gitignore
index 095acb49a374..cdabdc95a6e7 100644
--- a/scripts/dtc/.gitignore
+++ b/scripts/dtc/.gitignore
@@ -2,4 +2,3 @@ dtc
 dtc-lexer.lex.c
 dtc-parser.tab.c
 dtc-parser.tab.h
-
diff --git a/scripts/dtc/fstree.c b/scripts/dtc/fstree.c
index f3774530170a..e464727c8808 100644
--- a/scripts/dtc/fstree.c
+++ b/scripts/dtc/fstree.c
@@ -88,4 +88,3 @@ struct boot_info *dt_from_fs(const char *dirname)
 
 	return build_boot_info(NULL, tree, guess_boot_cpuid(tree));
 }
-
diff --git a/scripts/dtc/libfdt/fdt_empty_tree.c b/scripts/dtc/libfdt/fdt_empty_tree.c
index f72d13b1d19c..f2ae9b77c285 100644
--- a/scripts/dtc/libfdt/fdt_empty_tree.c
+++ b/scripts/dtc/libfdt/fdt_empty_tree.c
@@ -81,4 +81,3 @@ int fdt_create_empty_tree(void *buf, int bufsize)
 
 	return fdt_open_into(buf, buf, bufsize);
 }
-
diff --git a/scripts/dtc/treesource.c b/scripts/dtc/treesource.c
index 33eeba55fb4d..5740e6992d37 100644
--- a/scripts/dtc/treesource.c
+++ b/scripts/dtc/treesource.c
@@ -281,4 +281,3 @@ void dt_to_source(FILE *f, struct boot_info *bi)
 
 	write_tree_source_node(f, bi->dt, 0);
 }
-
diff --git a/scripts/headers.sh b/scripts/headers.sh
index 978b42b3acd7..95ece06599a5 100755
--- a/scripts/headers.sh
+++ b/scripts/headers.sh
@@ -28,5 +28,3 @@ for arch in ${archs}; do
 		;;
 	esac
 done
-
-
diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c
index 1237dd7fb4ca..dc7aa45e80ce 100644
--- a/scripts/kallsyms.c
+++ b/scripts/kallsyms.c
@@ -123,7 +123,7 @@ static int read_symbol(FILE *in, struct sym_entry *s)
 	}
 	if (strlen(str) > KSYM_NAME_LEN) {
 		fprintf(stderr, "Symbol %s too long for kallsyms (%zu vs %d).\n"
-                                "Please increase KSYM_NAME_LEN both in kernel and kallsyms.c\n",
+				"Please increase KSYM_NAME_LEN both in kernel and kallsyms.c\n",
 			str, strlen(str), KSYM_NAME_LEN);
 		return -1;
 	}
diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index 573ff3f1f533..9c4d2412fb72 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -319,4 +319,3 @@ $(obj)/%.moc: $(src)/%.h $(obj)/.tmp_qtcheck
 $(obj)/gconf.glade.h: $(obj)/gconf.glade
 	$(Q)intltool-extract --type=gettext/glade --srcdir=$(srctree) \
 	$(obj)/gconf.glade
-
diff --git a/scripts/kconfig/check.sh b/scripts/kconfig/check.sh
index 854d9c7c675c..55b79ba1ba2a 100755
--- a/scripts/kconfig/check.sh
+++ b/scripts/kconfig/check.sh
@@ -11,4 +11,3 @@ EOF
 if [ ! "$?" -eq "0"  ]; then
 	echo -DKBUILD_NO_NLS;
 fi
-
diff --git a/scripts/kconfig/conf.c b/scripts/kconfig/conf.c
index d19944f9c3ac..fef75fc756f4 100644
--- a/scripts/kconfig/conf.c
+++ b/scripts/kconfig/conf.c
@@ -696,7 +696,7 @@ int main(int ac, char **av)
 	} else if (input_mode == savedefconfig) {
 		if (conf_write_defconfig(defconfig_file)) {
 			fprintf(stderr, _("n*** Error while saving defconfig to: %s\n\n"),
-			        defconfig_file);
+				defconfig_file);
 			return 1;
 		}
 	} else if (input_mode != listnewconfig) {
diff --git a/scripts/kconfig/gconf.c b/scripts/kconfig/gconf.c
index f2bee70e26f4..d0a35b21f308 100644
--- a/scripts/kconfig/gconf.c
+++ b/scripts/kconfig/gconf.c
@@ -1404,7 +1404,7 @@ static void display_tree(struct menu *menu)
 		    && (tree == tree2))
 			continue;
 /*
-                if (((menu != &rootmenu) && !(menu->flags & MENU_ROOT))
+		if (((menu != &rootmenu) && !(menu->flags & MENU_ROOT))
 		    || (view_mode == FULL_VIEW)
 		    || (view_mode == SPLIT_VIEW))*/
 
diff --git a/scripts/kconfig/lxdialog/checklist.c b/scripts/kconfig/lxdialog/checklist.c
index 3b15c08ec1fa..8d016faa28d7 100644
--- a/scripts/kconfig/lxdialog/checklist.c
+++ b/scripts/kconfig/lxdialog/checklist.c
@@ -168,13 +168,13 @@ do_resize:
 
 	/* create new window for the list */
 	list = subwin(dialog, list_height, list_width, y + box_y + 1,
-	              x + box_x + 1);
+		      x + box_x + 1);
 
 	keypad(list, TRUE);
 
 	/* draw a box around the list items */
 	draw_box(dialog, box_y, box_x, list_height + 2, list_width + 2,
-	         dlg.menubox_border.atr, dlg.menubox.atr);
+		 dlg.menubox_border.atr, dlg.menubox.atr);
 
 	/* Find length of longest item in order to center checklist */
 	check_x = 0;
diff --git a/scripts/kconfig/lxdialog/inputbox.c b/scripts/kconfig/lxdialog/inputbox.c
index 447a582198c9..d58de1dc5360 100644
--- a/scripts/kconfig/lxdialog/inputbox.c
+++ b/scripts/kconfig/lxdialog/inputbox.c
@@ -42,7 +42,7 @@ static void print_buttons(WINDOW * dialog, int height, int width, int selected)
  * Display a dialog box for inputing a string
  */
 int dialog_inputbox(const char *title, const char *prompt, int height, int width,
-                    const char *init)
+		    const char *init)
 {
 	int i, x, y, box_y, box_x, box_width;
 	int input_x = 0, key = 0, button = -1;
diff --git a/scripts/kconfig/lxdialog/menubox.c b/scripts/kconfig/lxdialog/menubox.c
index c93de0b2faca..11ae9ad7ac7b 100644
--- a/scripts/kconfig/lxdialog/menubox.c
+++ b/scripts/kconfig/lxdialog/menubox.c
@@ -64,7 +64,7 @@ static int menu_width, item_x;
  * Print menu item
  */
 static void do_print_item(WINDOW * win, const char *item, int line_y,
-                          int selected, int hotkey)
+			  int selected, int hotkey)
 {
 	int j;
 	char *menu_item = malloc(menu_width + 1);
@@ -182,7 +182,7 @@ static void do_scroll(WINDOW *win, int *scroll, int n)
  * Display a menu for choosing among a number of options
  */
 int dialog_menu(const char *title, const char *prompt,
-                const void *selected, int *s_scroll)
+		const void *selected, int *s_scroll)
 {
 	int i, j, x, y, box_x, box_y;
 	int height, width, menu_height;
diff --git a/scripts/kconfig/lxdialog/util.c b/scripts/kconfig/lxdialog/util.c
index 58a8289dd650..f7abdeb92af0 100644
--- a/scripts/kconfig/lxdialog/util.c
+++ b/scripts/kconfig/lxdialog/util.c
@@ -623,7 +623,7 @@ void item_make(const char *fmt, ...)
 void item_add_str(const char *fmt, ...)
 {
 	va_list ap;
-        size_t avail;
+	size_t avail;
 
 	avail = sizeof(item_cur->node.str) - strlen(item_cur->node.str);
 
diff --git a/scripts/kconfig/mconf.c b/scripts/kconfig/mconf.c
index 59184bb41ef8..14cea7463a62 100644
--- a/scripts/kconfig/mconf.c
+++ b/scripts/kconfig/mconf.c
@@ -299,7 +299,7 @@ static void set_config_filename(const char *config_filename)
 	int size;
 
 	size = snprintf(menu_backtitle, sizeof(menu_backtitle),
-	                "%s - %s", config_filename, rootmenu.prompt->text);
+			"%s - %s", config_filename, rootmenu.prompt->text);
 	if (size >= sizeof(menu_backtitle))
 		menu_backtitle[sizeof(menu_backtitle)-1] = '\0';
 	set_dialog_backtitle(menu_backtitle);
@@ -1034,4 +1034,3 @@ int main(int ac, char **av)
 
 	return res;
 }
-
diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c
index 3ac2c9c6e280..a26cc5d2a9b0 100644
--- a/scripts/kconfig/menu.c
+++ b/scripts/kconfig/menu.c
@@ -258,8 +258,8 @@ static void sym_check_prop(struct symbol *sym)
 				    "config symbol '%s' uses select, but is "
 				    "not boolean or tristate", sym->name);
 			else if (sym2->type != S_UNKNOWN &&
-			         sym2->type != S_BOOLEAN &&
-			         sym2->type != S_TRISTATE)
+				 sym2->type != S_BOOLEAN &&
+				 sym2->type != S_TRISTATE)
 				prop_warn(prop,
 				    "'%s' has wrong type. 'select' only "
 				    "accept arguments of boolean and "
@@ -268,7 +268,7 @@ static void sym_check_prop(struct symbol *sym)
 		case P_RANGE:
 			if (sym->type != S_INT && sym->type != S_HEX)
 				prop_warn(prop, "range is only allowed "
-				                "for int or hex symbols");
+						"for int or hex symbols");
 			if (!menu_validate_number(sym, prop->expr->left.sym) ||
 			    !menu_validate_number(sym, prop->expr->right.sym))
 				prop_warn(prop, "range is invalid");
diff --git a/scripts/kconfig/nconf.c b/scripts/kconfig/nconf.c
index 4fbecd2473bc..984489ef2b46 100644
--- a/scripts/kconfig/nconf.c
+++ b/scripts/kconfig/nconf.c
@@ -1554,4 +1554,3 @@ int main(int ac, char **av)
 	endwin();
 	return 0;
 }
-
diff --git a/scripts/kconfig/util.c b/scripts/kconfig/util.c
index 6e7fbf196809..94f9c83e324f 100644
--- a/scripts/kconfig/util.c
+++ b/scripts/kconfig/util.c
@@ -155,5 +155,3 @@ void *xcalloc(size_t nmemb, size_t size)
 	fprintf(stderr, "Out of memory.\n");
 	exit(1);
 }
-
-
diff --git a/scripts/kconfig/zconf.l b/scripts/kconfig/zconf.l
index 1a9f53e535ca..6c62d93b4ffb 100644
--- a/scripts/kconfig/zconf.l
+++ b/scripts/kconfig/zconf.l
@@ -27,8 +27,8 @@ static char *text;
 static int text_size, text_asize;
 
 struct buffer {
-        struct buffer *parent;
-        YY_BUFFER_STATE state;
+	struct buffer *parent;
+	YY_BUFFER_STATE state;
 };
 
 struct buffer *current_buf;
diff --git a/scripts/kconfig/zconf.lex.c_shipped b/scripts/kconfig/zconf.lex.c_shipped
index a0521aa5974b..349a7f24315b 100644
--- a/scripts/kconfig/zconf.lex.c_shipped
+++ b/scripts/kconfig/zconf.lex.c_shipped
@@ -789,8 +789,8 @@ static char *text;
 static int text_size, text_asize;
 
 struct buffer {
-        struct buffer *parent;
-        YY_BUFFER_STATE state;
+	struct buffer *parent;
+	YY_BUFFER_STATE state;
 };
 
 struct buffer *current_buf;
diff --git a/scripts/kconfig/zconf.tab.c_shipped b/scripts/kconfig/zconf.tab.c_shipped
index 25ae16ac75c8..de5e84ed3f96 100644
--- a/scripts/kconfig/zconf.tab.c_shipped
+++ b/scripts/kconfig/zconf.tab.c_shipped
@@ -2314,7 +2314,7 @@ void conf_parse(const char *name)
 	for_all_symbols(i, sym) {
 		if (sym_check_deps(sym))
 			zconfnerrs++;
-        }
+	}
 	if (zconfnerrs)
 		exit(1);
 	sym_set_change_count(1);
diff --git a/scripts/kconfig/zconf.y b/scripts/kconfig/zconf.y
index 0653886fac48..0f683cfa53e9 100644
--- a/scripts/kconfig/zconf.y
+++ b/scripts/kconfig/zconf.y
@@ -510,7 +510,7 @@ void conf_parse(const char *name)
 	for_all_symbols(i, sym) {
 		if (sym_check_deps(sym))
 			zconfnerrs++;
-        }
+	}
 	if (zconfnerrs)
 		exit(1);
 	sym_set_change_count(1);
diff --git a/scripts/markup_oops.pl b/scripts/markup_oops.pl
index 827896f56501..c21d16328d3f 100644
--- a/scripts/markup_oops.pl
+++ b/scripts/markup_oops.pl
@@ -367,4 +367,3 @@ OPTION:
 EOT
 	exit;
 }
-
diff --git a/scripts/mksysmap b/scripts/mksysmap
index c1b6191ef879..7ada35a0f478 100644
--- a/scripts/mksysmap
+++ b/scripts/mksysmap
@@ -42,4 +42,3 @@
 # (At least sparc64 has __crc_ in the middle).
 
 $NM -n $1 | grep -v '\( [aNUw] \)\|\(__crc_\)\|\( \$[adt]\)' > $2
-
diff --git a/scripts/mod/.gitignore b/scripts/mod/.gitignore
index 33bae0df4de5..3bd11b603173 100644
--- a/scripts/mod/.gitignore
+++ b/scripts/mod/.gitignore
@@ -2,4 +2,3 @@ elfconfig.h
 mk_elfconfig
 modpost
 devicetable-offsets.h
-
diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
index 1924990a737f..e614ef689eee 100644
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -644,28 +644,26 @@ ADD_TO_DEVTABLE("pcmcia", pcmcia_device_id, do_pcmcia_entry);
 
 static int do_of_entry (const char *filename, void *symval, char *alias)
 {
-    int len;
-    char *tmp;
-    DEF_FIELD_ADDR(symval, of_device_id, name);
-    DEF_FIELD_ADDR(symval, of_device_id, type);
-    DEF_FIELD_ADDR(symval, of_device_id, compatible);
-
-    len = sprintf (alias, "of:N%sT%s",
-                    (*name)[0] ? *name : "*",
-                    (*type)[0] ? *type : "*");
-
-    if (compatible[0])
-        sprintf (&alias[len], "%sC%s",
-                     (*type)[0] ? "*" : "",
-                     *compatible);
-
-    /* Replace all whitespace with underscores */
-    for (tmp = alias; tmp && *tmp; tmp++)
-        if (isspace (*tmp))
-            *tmp = '_';
-
-    add_wildcard(alias);
-    return 1;
+	int len;
+	char *tmp;
+	DEF_FIELD_ADDR(symval, of_device_id, name);
+	DEF_FIELD_ADDR(symval, of_device_id, type);
+	DEF_FIELD_ADDR(symval, of_device_id, compatible);
+
+	len = sprintf(alias, "of:N%sT%s", (*name)[0] ? *name : "*",
+		      (*type)[0] ? *type : "*");
+
+	if (compatible[0])
+		sprintf(&alias[len], "%sC%s", (*type)[0] ? "*" : "",
+			*compatible);
+
+	/* Replace all whitespace with underscores */
+	for (tmp = alias; tmp && *tmp; tmp++)
+		if (isspace (*tmp))
+			*tmp = '_';
+
+	add_wildcard(alias);
+	return 1;
 }
 ADD_TO_DEVTABLE("of", of_device_id, do_of_entry);
 
diff --git a/scripts/mod/mk_elfconfig.c b/scripts/mod/mk_elfconfig.c
index 639bca7ba559..a4fd71d71d65 100644
--- a/scripts/mod/mk_elfconfig.c
+++ b/scripts/mod/mk_elfconfig.c
@@ -54,4 +54,3 @@ main(int argc, char **argv)
 
 	return 0;
 }
-
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 026543ba8d86..9d9c5b905b35 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -862,7 +862,7 @@ static const char *section_white_list[] =
  * without "ax" / "aw".
  */
 static void check_section(const char *modname, struct elf_info *elf,
-                          Elf_Shdr *sechdr)
+			  Elf_Shdr *sechdr)
 {
 	const char *sec = sech_name(elf, sechdr);
 
@@ -1296,12 +1296,12 @@ static void print_section_list(const char * const list[20])
  */
 static void report_sec_mismatch(const char *modname,
 				const struct sectioncheck *mismatch,
-                                const char *fromsec,
-                                unsigned long long fromaddr,
-                                const char *fromsym,
-                                int from_is_func,
-                                const char *tosec, const char *tosym,
-                                int to_is_func)
+				const char *fromsec,
+				unsigned long long fromaddr,
+				const char *fromsym,
+				int from_is_func,
+				const char *tosec, const char *tosym,
+				int to_is_func)
 {
 	const char *from, *from_p;
 	const char *to, *to_p;
@@ -1441,7 +1441,7 @@ static void report_sec_mismatch(const char *modname,
 }
 
 static void check_section_mismatch(const char *modname, struct elf_info *elf,
-                                   Elf_Rela *r, Elf_Sym *sym, const char *fromsec)
+				   Elf_Rela *r, Elf_Sym *sym, const char *fromsec)
 {
 	const char *tosec;
 	const struct sectioncheck *mismatch;
@@ -1528,7 +1528,7 @@ static int addend_arm_rel(struct elf_info *elf, Elf_Shdr *sechdr, Elf_Rela *r)
 	case R_ARM_ABS32:
 		/* From ARM ABI: (S + A) | T */
 		r->r_addend = (int)(long)
-		              (elf->symtab_start + ELF_R_SYM(r->r_info));
+			      (elf->symtab_start + ELF_R_SYM(r->r_info));
 		break;
 	case R_ARM_PC24:
 	case R_ARM_CALL:
@@ -1538,8 +1538,8 @@ static int addend_arm_rel(struct elf_info *elf, Elf_Shdr *sechdr, Elf_Rela *r)
 	case R_ARM_THM_JUMP19:
 		/* From ARM ABI: ((S + A) | T) - P */
 		r->r_addend = (int)(long)(elf->hdr +
-		              sechdr->sh_offset +
-		              (r->r_offset - sechdr->sh_addr));
+			      sechdr->sh_offset +
+			      (r->r_offset - sechdr->sh_addr));
 		break;
 	default:
 		return 1;
@@ -1571,7 +1571,7 @@ static int addend_mips_rel(struct elf_info *elf, Elf_Shdr *sechdr, Elf_Rela *r)
 }
 
 static void section_rela(const char *modname, struct elf_info *elf,
-                         Elf_Shdr *sechdr)
+			 Elf_Shdr *sechdr)
 {
 	Elf_Sym  *sym;
 	Elf_Rela *rela;
@@ -1615,7 +1615,7 @@ static void section_rela(const char *modname, struct elf_info *elf,
 }
 
 static void section_rel(const char *modname, struct elf_info *elf,
-                        Elf_Shdr *sechdr)
+			Elf_Shdr *sechdr)
 {
 	Elf_Sym *sym;
 	Elf_Rel *rel;
@@ -1685,7 +1685,7 @@ static void section_rel(const char *modname, struct elf_info *elf,
  * be discarded and warns about it.
  **/
 static void check_sec_ref(struct module *mod, const char *modname,
-                          struct elf_info *elf)
+			  struct elf_info *elf)
 {
 	int i;
 	Elf_Shdr *sechdrs = elf->sechdrs;
@@ -1945,7 +1945,7 @@ static int add_versions(struct buffer *b, struct module *mod)
 					     s->name, mod->name);
 				} else {
 					merror("\"%s\" [%s.ko] undefined!\n",
-					          s->name, mod->name);
+					       s->name, mod->name);
 					err = 1;
 				}
 			}
diff --git a/scripts/mod/sumversion.c b/scripts/mod/sumversion.c
index deb2994b04c4..944418da9fe3 100644
--- a/scripts/mod/sumversion.c
+++ b/scripts/mod/sumversion.c
@@ -214,7 +214,7 @@ static void md4_final_ascii(struct md4_ctx *mctx, char *out, unsigned int len)
 	mctx->block[14] = mctx->byte_count << 3;
 	mctx->block[15] = mctx->byte_count >> 29;
 	le32_to_cpu_array(mctx->block, (sizeof(mctx->block) -
-	                  sizeof(uint64_t)) / sizeof(uint32_t));
+			  sizeof(uint64_t)) / sizeof(uint32_t));
 	md4_transform(mctx->hash, mctx->block);
 	cpu_to_le32_array(mctx->hash, sizeof(mctx->hash) / sizeof(uint32_t));
 
@@ -367,7 +367,7 @@ static int parse_source_files(const char *objfile, struct md4_ctx *md)
 			break;
 		/* Terminate line at first space, to get rid of final ' \' */
 		while (*p) {
-                       if (isspace(*p)) {
+			if (isspace(*p)) {
 				*p = '\0';
 				break;
 			}
diff --git a/scripts/objdiff b/scripts/objdiff
index b3e4f10bfc3e..62e51dae2138 100755
--- a/scripts/objdiff
+++ b/scripts/objdiff
@@ -25,25 +25,47 @@
 #
 # Note: 'make mrproper' will also remove .tmp_objdiff
 
-GIT_DIR="`git rev-parse --git-dir`"
+SRCTREE=$(cd $(git rev-parse --show-toplevel 2>/dev/null); pwd)
 
-if [ -d "$GIT_DIR" ]; then
-	TMPD="${GIT_DIR%git}tmp_objdiff"
-
-	[ -d "$TMPD" ] || mkdir "$TMPD"
-else
-	echo "ERROR: git directory not found."
+if [ -z "$SRCTREE" ]; then
+	echo >&2 "ERROR: Not a git repository."
 	exit 1
 fi
 
+TMPD=$SRCTREE/.tmp_objdiff
+
 usage() {
-	echo "Usage: $0 <command> <args>"
-	echo "  record    <list of object files>"
-	echo "  diff      <commitA> <commitB>"
-	echo "  clean     all | <commit>"
+	echo >&2 "Usage: $0 <command> <args>"
+	echo >&2 "  record    <list of object files or directories>"
+	echo >&2 "  diff      <commitA> <commitB>"
+	echo >&2 "  clean     all | <commit>"
 	exit 1
 }
 
+get_output_dir() {
+	dir=${1%/*}
+
+	if [ "$dir" = "$1" ]; then
+		dir=.
+	fi
+
+	dir=$(cd $dir; pwd)
+
+	echo $TMPD/$CMT${dir#$SRCTREE}
+}
+
+do_objdump() {
+	dir=$(get_output_dir $1)
+	base=${1##*/}
+	dis=$dir/${base%.o}.dis
+
+	[ ! -d "$dir" ] && mkdir -p $dir
+
+	# remove addresses for a cleaner diff
+	# http://dummdida.tumblr.com/post/60924060451/binary-diff-between-libc-from-scientificlinux-and
+	$OBJDUMP -D $1 | sed "s/^[[:space:]]\+[0-9a-f]\+//" > $dis
+}
+
 dorecord() {
 	[ $# -eq 0 ] && usage
 
@@ -52,20 +74,16 @@ dorecord() {
 	CMT="`git rev-parse --short HEAD`"
 
 	OBJDUMP="${CROSS_COMPILE}objdump"
-	OBJDIFFD="$TMPD/$CMT"
-
-	[ ! -d "$OBJDIFFD" ] && mkdir -p "$OBJDIFFD"
 
-	for f in $FILES; do
-		dn="${f%/*}"
-		bn="${f##*/}"
-
-		[ ! -d "$OBJDIFFD/$dn" ] && mkdir -p "$OBJDIFFD/$dn"
-
-		# remove addresses for a more clear diff
-		# http://dummdida.tumblr.com/post/60924060451/binary-diff-between-libc-from-scientificlinux-and
-		$OBJDUMP -D "$f" | sed "s/^[[:space:]]\+[0-9a-f]\+//" \
-			>"$OBJDIFFD/$dn/$bn"
+	for d in $FILES; do
+		if [ -d "$d" ]; then
+			for f in $(find $d -name '*.o')
+			do
+				do_objdump $f
+			done
+		else
+			do_objdump $d
+		fi
 	done
 }
 
@@ -90,12 +108,12 @@ dodiff() {
 	DSTD="$TMPD/$DST"
 
 	if [ ! -d "$SRCD" ]; then
-		echo "ERROR: $SRCD doesn't exist"
+		echo >&2 "ERROR: $SRCD doesn't exist"
 		exit 1
 	fi
 
 	if [ ! -d "$DSTD" ]; then
-		echo "ERROR: $DSTD doesn't exist"
+		echo >&2 "ERROR: $DSTD doesn't exist"
 		exit 1
 	fi
 
@@ -114,7 +132,7 @@ doclean() {
 		if [ -d "$TMPD/$CMT" ]; then
 			rm -rf $TMPD/$CMT
 		else
-			echo "$CMT not found"
+			echo >&2 "$CMT not found"
 		fi
 	fi
 }
@@ -135,7 +153,7 @@ case "$1" in
 		doclean $*
 		;;
 	*)
-		echo "Unrecognized command '$1'"
+		echo >&2 "Unrecognized command '$1'"
 		exit 1
 		;;
 esac
diff --git a/scripts/package/Makefile b/scripts/package/Makefile
index c5d473393816..99ca6e76eb0a 100644
--- a/scripts/package/Makefile
+++ b/scripts/package/Makefile
@@ -143,4 +143,3 @@ help: FORCE
 	@echo '  perf-targz-src-pkg  - Build $(perf-tar).tar.gz source tarball'
 	@echo '  perf-tarbz2-src-pkg - Build $(perf-tar).tar.bz2 source tarball'
 	@echo '  perf-tarxz-src-pkg  - Build $(perf-tar).tar.xz source tarball'
-
diff --git a/scripts/package/builddeb b/scripts/package/builddeb
index b151b63f9be3..b5f08f727868 100644
--- a/scripts/package/builddeb
+++ b/scripts/package/builddeb
@@ -35,13 +35,15 @@ create_package() {
 	sparc*)
 		debarch=sparc ;;
 	s390*)
-		debarch=s390 ;;
+		debarch=s390$(grep -q CONFIG_64BIT=y $KCONFIG_CONFIG && echo x || true) ;;
 	ppc*)
 		debarch=powerpc ;;
 	parisc*)
 		debarch=hppa ;;
 	mips*)
 		debarch=mips$(grep -q CPU_LITTLE_ENDIAN=y $KCONFIG_CONFIG && echo el || true) ;;
+	arm64)
+		debarch=arm64 ;;
 	arm*)
 		debarch=arm$(grep -q CONFIG_AEABI=y $KCONFIG_CONFIG && echo el || true) ;;
 	*)
@@ -155,11 +157,11 @@ if grep -q '^CONFIG_MODULES=y' $KCONFIG_CONFIG ; then
 			for module in $(find lib/modules/ -name *.ko); do
 				mkdir -p $(dirname $dbg_dir/usr/lib/debug/$module)
 				# only keep debug symbols in the debug file
-				objcopy --only-keep-debug $module $dbg_dir/usr/lib/debug/$module
+				$OBJCOPY --only-keep-debug $module $dbg_dir/usr/lib/debug/$module
 				# strip original module from debug symbols
-				objcopy --strip-debug $module
+				$OBJCOPY --strip-debug $module
 				# then add a link to those
-				objcopy --add-gnu-debuglink=$dbg_dir/usr/lib/debug/$module $module
+				$OBJCOPY --add-gnu-debuglink=$dbg_dir/usr/lib/debug/$module $module
 			done
 		)
 	fi
diff --git a/scripts/package/buildtar b/scripts/package/buildtar
index aa22f9447ddc..995c1eafaff6 100644
--- a/scripts/package/buildtar
+++ b/scripts/package/buildtar
@@ -136,4 +136,3 @@ esac
 echo "Tarball successfully created in ${tarball}${file_ext}"
 
 exit 0
-
diff --git a/scripts/pnmtologo.c b/scripts/pnmtologo.c
index 68bb4efc5af4..4718d7895f0b 100644
--- a/scripts/pnmtologo.c
+++ b/scripts/pnmtologo.c
@@ -512,4 +512,3 @@ int main(int argc, char *argv[])
     }
     exit(0);
 }
-
diff --git a/scripts/recordmcount.c b/scripts/recordmcount.c
index e11aa4a156d2..650ecc83d7d7 100644
--- a/scripts/recordmcount.c
+++ b/scripts/recordmcount.c
@@ -487,5 +487,3 @@ main(int argc, char *argv[])
 	}
 	return !!n_error;
 }
-
-
diff --git a/scripts/rt-tester/check-all.sh b/scripts/rt-tester/check-all.sh
index 43098afe7431..6b5c83baf148 100644
--- a/scripts/rt-tester/check-all.sh
+++ b/scripts/rt-tester/check-all.sh
@@ -19,4 +19,3 @@ testit t3-l2-pi.tst
 testit t4-l2-pi-deboost.tst
 testit t5-l4-pi-boost-deboost.tst
 testit t5-l4-pi-boost-deboost-setsched.tst
-
diff --git a/scripts/rt-tester/rt-tester.py b/scripts/rt-tester/rt-tester.py
index 34186cac1d2f..6d916c2a45a5 100644
--- a/scripts/rt-tester/rt-tester.py
+++ b/scripts/rt-tester/rt-tester.py
@@ -216,5 +216,3 @@ while 1:
 # Normal exit pass
 print "Pass"
 sys.exit(0)
-
-
diff --git a/scripts/selinux/install_policy.sh b/scripts/selinux/install_policy.sh
index 7b9ccf61f8f9..f6a0ce71015f 100644
--- a/scripts/selinux/install_policy.sh
+++ b/scripts/selinux/install_policy.sh
@@ -66,4 +66,3 @@ if [ "eq$dodev" != "eq" ]; then
 	$SF file_contexts /dev
 	mount --move /mnt /dev
 fi
-
diff --git a/scripts/show_delta b/scripts/show_delta
index e25732b5d701..5b365009e6a3 100755
--- a/scripts/show_delta
+++ b/scripts/show_delta
@@ -126,4 +126,3 @@ def main():
 		print (convert_line(line, base_time),)
 
 main()
-
diff --git a/scripts/tags.sh b/scripts/tags.sh
index f2c5b006a3d7..e6b011fe1d0d 100755
--- a/scripts/tags.sh
+++ b/scripts/tags.sh
@@ -25,6 +25,9 @@ else
 	tree=${srctree}/
 fi
 
+# ignore userspace tools
+ignore="$ignore ( -path ${tree}tools ) -prune -o"
+
 # Find all available archs
 find_all_archs()
 {
@@ -47,7 +50,8 @@ find_arch_sources()
 	for i in $archincludedir; do
 		prune="$prune -wholename $i -prune -o"
 	done
-	find ${tree}arch/$1 $ignore $subarchprune $prune -name "$2" -print;
+	find ${tree}arch/$1 $ignore $subarchprune $prune -name "$2" \
+		-not -type l -print;
 }
 
 # find sources in arch/$1/include
@@ -57,14 +61,15 @@ find_arch_include_sources()
 					-name include -type d -print);
 	if [ -n "$include" ]; then
 		archincludedir="$archincludedir $include"
-		find $include $ignore -name "$2" -print;
+		find $include $ignore -name "$2" -not -type l -print;
 	fi
 }
 
 # find sources in include/
 find_include_sources()
 {
-	find ${tree}include $ignore -name config -prune -o -name "$1" -print;
+	find ${tree}include $ignore -name config -prune -o -name "$1" \
+		-not -type l -print;
 }
 
 # find sources in rest of tree
@@ -73,7 +78,7 @@ find_other_sources()
 {
 	find ${tree}* $ignore \
 	     \( -name include -o -name arch -o -name '.tmp_*' \) -prune -o \
-	       -name "$1" -print;
+	       -name "$1" -not -type l -print;
 }
 
 find_sources()
@@ -187,6 +192,10 @@ exuberant()
 	--regex-c++='/TESTCLEARFLAG_FALSE\(([^,)]*).*/TestClearPage\1/' \
 	--regex-c++='/__TESTCLEARFLAG_FALSE\(([^,)]*).*/__TestClearPage\1/' \
 	--regex-c++='/_PE\(([^,)]*).*/PEVENT_ERRNO__\1/'		\
+	--regex-c++='/TESTPCGFLAG\(([^,)]*).*/PageCgroup\1/'		\
+	--regex-c++='/SETPCGFLAG\(([^,)]*).*/SetPageCgroup\1/'		\
+	--regex-c++='/CLEARPCGFLAG\(([^,)]*).*/ClearPageCgroup\1/'	\
+	--regex-c++='/TESTCLEARPCGFLAG\(([^,)]*).*/TestClearPageCgroup\1/' \
 	--regex-c='/PCI_OP_READ\((\w*).*[1-4]\)/pci_bus_read_config_\1/' \
 	--regex-c='/PCI_OP_WRITE\((\w*).*[1-4]\)/pci_bus_write_config_\1/' \
 	--regex-c='/DEFINE_(MUTEX|SEMAPHORE|SPINLOCK)\((\w*)/\2/v/'	\
@@ -201,7 +210,8 @@ exuberant()
 	--regex-c='/DECLARE_(TASKLET|WORK|DELAYED_WORK)\((\w*)/\2/v/'	\
 	--regex-c='/DEFINE_PCI_DEVICE_TABLE\((\w*)/\1/v/'		\
 	--regex-c='/(^\s)OFFSET\((\w*)/\2/v/'				\
-	--regex-c='/(^\s)DEFINE\((\w*)/\2/v/'
+	--regex-c='/(^\s)DEFINE\((\w*)/\2/v/'				\
+	--regex-c='/DEFINE_HASHTABLE\((\w*)/\1/v/'
 
 	all_kconfigs | xargs $1 -a                              \
 	--langdef=kconfig --language-force=kconfig              \
@@ -244,9 +254,14 @@ emacs()
 	--regex='/__CLEARPAGEFLAG_NOOP(\([^,)]*\).*/__ClearPage\1/' \
 	--regex='/TESTCLEARFLAG_FALSE(\([^,)]*\).*/TestClearPage\1/' \
 	--regex='/__TESTCLEARFLAG_FALSE(\([^,)]*\).*/__TestClearPage\1/' \
+	--regex='/TESTPCGFLAG\(([^,)]*).*/PageCgroup\1/'	\
+	--regex='/SETPCGFLAG\(([^,)]*).*/SetPageCgroup\1/'	\
+	--regex='/CLEARPCGFLAG\(([^,)]*).*/ClearPageCgroup\1/'	\
+	--regex='/TESTCLEARPCGFLAG\(([^,)]*).*/TestClearPageCgroup\1/' \
 	--regex='/_PE(\([^,)]*\).*/PEVENT_ERRNO__\1/'		\
 	--regex='/PCI_OP_READ(\([a-z]*[a-z]\).*[1-4])/pci_bus_read_config_\1/' \
-	--regex='/PCI_OP_WRITE(\([a-z]*[a-z]\).*[1-4])/pci_bus_write_config_\1/'
+	--regex='/PCI_OP_WRITE(\([a-z]*[a-z]\).*[1-4])/pci_bus_write_config_\1/'\
+	--regex='/DEFINE_HASHTABLE\((\w*)/\1/v/'
 
 	all_kconfigs | xargs $1 -a                              \
 	--regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/\3/'
@@ -266,7 +281,7 @@ xtags()
 		emacs $1
 	else
 		all_target_sources | xargs $1 -a
-        fi
+	fi
 }
 
 # Support um (which uses SUBARCH)