23 files changed, 971 insertions, 586 deletions

diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 11602e5efb3b..de46ab03f063 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -81,6 +81,7 @@ endif
 
 ifneq ($(strip $(lib-y) $(lib-m) $(lib-)),)
 lib-target := $(obj)/lib.a
+obj-y += $(obj)/lib-ksyms.o
 endif
 
 ifneq ($(strip $(obj-y) $(obj-m) $(obj-) $(subdir-m) $(lib-target)),)
@@ -358,12 +359,22 @@ $(sort $(subdir-obj-y)): $(subdir-ym) ;
 # Rule to compile a set of .o files into one .o file
 #
 ifdef builtin-target
-quiet_cmd_link_o_target = LD      $@
+
+ifdef CONFIG_THIN_ARCHIVES
+  cmd_make_builtin = rm -f $@; $(AR) rcST$(KBUILD_ARFLAGS)
+  cmd_make_empty_builtin = rm -f $@; $(AR) rcST$(KBUILD_ARFLAGS)
+  quiet_cmd_link_o_target = AR      $@
+else
+  cmd_make_builtin = $(LD) $(ld_flags) -r -o
+  cmd_make_empty_builtin = rm -f $@; $(AR) rcs$(KBUILD_ARFLAGS)
+  quiet_cmd_link_o_target = LD      $@
+endif
+
 # If the list of objects to link is empty, just create an empty built-in.o
 cmd_link_o_target = $(if $(strip $(obj-y)),\
-		      $(LD) $(ld_flags) -r -o $@ $(filter $(obj-y), $^) \
+		      $(cmd_make_builtin) $@ $(filter $(obj-y), $^) \
 		      $(cmd_secanalysis),\
-		      rm -f $@; $(AR) rcs$(KBUILD_ARFLAGS) $@)
+		      $(cmd_make_empty_builtin) $@)
 
 $(builtin-target): $(obj-y) FORCE
 	$(call if_changed,link_o_target)
@@ -389,12 +400,36 @@ $(modorder-target): $(subdir-ym) FORCE
 #
 ifdef lib-target
 quiet_cmd_link_l_target = AR      $@
-cmd_link_l_target = rm -f $@; $(AR) rcs$(KBUILD_ARFLAGS) $@ $(lib-y)
+
+ifdef CONFIG_THIN_ARCHIVES
+  cmd_link_l_target = rm -f $@; $(AR) rcsT$(KBUILD_ARFLAGS) $@ $(lib-y)
+else
+  cmd_link_l_target = rm -f $@; $(AR) rcs$(KBUILD_ARFLAGS) $@ $(lib-y)
+endif
 
 $(lib-target): $(lib-y) FORCE
 	$(call if_changed,link_l_target)
 
 targets += $(lib-target)
+
+dummy-object = $(obj)/.lib_exports.o
+ksyms-lds = $(dot-target).lds
+ifdef CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX
+ref_prefix = EXTERN(_
+else
+ref_prefix = EXTERN(
+endif
+
+quiet_cmd_export_list = EXPORTS $@
+cmd_export_list = $(OBJDUMP) -h $< | \
+	sed -ne '/___ksymtab/{s/.*+/$(ref_prefix)/;s/ .*/)/;p}' >$(ksyms-lds);\
+	rm -f $(dummy-object);\
+	$(AR) rcs$(KBUILD_ARFLAGS) $(dummy-object);\
+	$(LD) $(ld_flags) -r -o $@ -T $(ksyms-lds) $(dummy-object);\
+	rm $(dummy-object) $(ksyms-lds)
+
+$(obj)/lib-ksyms.o: $(lib-target) FORCE
+	$(call if_changed,export_list)
 endif
 
 #
diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost
index 1366a94b6c39..16923ba4b5b1 100644
--- a/scripts/Makefile.modpost
+++ b/scripts/Makefile.modpost
@@ -115,14 +115,18 @@ $(modules:.ko=.mod.o): %.mod.o: %.mod.c FORCE
 
 targets += $(modules:.ko=.mod.o)
 
-# Step 6), final link of the modules
+ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(SRCARCH)/Makefile.postlink)
+
+# Step 6), final link of the modules with optional arch pass after final link
 quiet_cmd_ld_ko_o = LD [M]  $@
-      cmd_ld_ko_o = $(LD) -r $(LDFLAGS)                                 \
-                             $(KBUILD_LDFLAGS_MODULE) $(LDFLAGS_MODULE) \
-                             -o $@ $(filter-out FORCE,$^)
+      cmd_ld_ko_o =                                                     \
+	$(LD) -r $(LDFLAGS)                                             \
+                 $(KBUILD_LDFLAGS_MODULE) $(LDFLAGS_MODULE)             \
+                 -o $@ $(filter-out FORCE,$^) ;                         \
+	$(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
 
 $(modules): %.ko :%.o %.mod.o FORCE
-	$(call if_changed,ld_ko_o)
+	+$(call if_changed,ld_ko_o)
 
 targets += $(modules)
 
diff --git a/scripts/Makefile.ubsan b/scripts/Makefile.ubsan
index 8ab68679cfb5..dd779c40c8e6 100644
--- a/scripts/Makefile.ubsan
+++ b/scripts/Makefile.ubsan
@@ -3,7 +3,6 @@ ifdef CONFIG_UBSAN
       CFLAGS_UBSAN += $(call cc-option, -fsanitize=integer-divide-by-zero)
       CFLAGS_UBSAN += $(call cc-option, -fsanitize=unreachable)
       CFLAGS_UBSAN += $(call cc-option, -fsanitize=vla-bound)
-      CFLAGS_UBSAN += $(call cc-option, -fsanitize=null)
       CFLAGS_UBSAN += $(call cc-option, -fsanitize=signed-integer-overflow)
       CFLAGS_UBSAN += $(call cc-option, -fsanitize=bounds)
       CFLAGS_UBSAN += $(call cc-option, -fsanitize=object-size)
@@ -14,4 +13,8 @@ ifdef CONFIG_UBSAN
 ifdef CONFIG_UBSAN_ALIGNMENT
       CFLAGS_UBSAN += $(call cc-option, -fsanitize=alignment)
 endif
+
+ifdef CONFIG_UBSAN_NULL
+      CFLAGS_UBSAN += $(call cc-option, -fsanitize=null)
+endif
 endif
diff --git a/scripts/basic/fixdep.c b/scripts/basic/fixdep.c
index 746ec1ece614..fff818b92acb 100644
--- a/scripts/basic/fixdep.c
+++ b/scripts/basic/fixdep.c
@@ -82,8 +82,7 @@
  * to date before even starting the recursive build, so it's too late
  * at this point anyway.
  *
- * The algorithm to grep for "CONFIG_..." is bit unusual, but should
- * be fast ;-) We don't even try to really parse the header files, but
+ * We don't even try to really parse the header files, but
  * merely grep, i.e. if CONFIG_FOO is mentioned in a comment, it will
  * be picked up as well. It's not a problem with respect to
  * correctness, since that can only give too many dependencies, thus
@@ -115,11 +114,6 @@
 #include <ctype.h>
 #include <arpa/inet.h>
 
-#define INT_CONF ntohl(0x434f4e46)
-#define INT_ONFI ntohl(0x4f4e4649)
-#define INT_NFIG ntohl(0x4e464947)
-#define INT_FIG_ ntohl(0x4649475f)
-
 int insert_extra_deps;
 char *target;
 char *depfile;
@@ -241,37 +235,22 @@ static void use_config(const char *m, int slen)
 	print_config(m, slen);
 }
 
-static void parse_config_file(const char *map, size_t len)
+static void parse_config_file(const char *p)
 {
-	const int *end = (const int *) (map + len);
-	/* start at +1, so that p can never be < map */
-	const int *m   = (const int *) map + 1;
-	const char *p, *q;
-
-	for (; m < end; m++) {
-		if (*m == INT_CONF) { p = (char *) m  ; goto conf; }
-		if (*m == INT_ONFI) { p = (char *) m-1; goto conf; }
-		if (*m == INT_NFIG) { p = (char *) m-2; goto conf; }
-		if (*m == INT_FIG_) { p = (char *) m-3; goto conf; }
-		continue;
-	conf:
-		if (p > map + len - 7)
-			continue;
-		if (memcmp(p, "CONFIG_", 7))
-			continue;
+	const char *q, *r;
+
+	while ((p = strstr(p, "CONFIG_"))) {
 		p += 7;
-		for (q = p; q < map + len; q++) {
-			if (!(isalnum(*q) || *q == '_'))
-				goto found;
-		}
-		continue;
-
-	found:
-		if (!memcmp(q - 7, "_MODULE", 7))
-			q -= 7;
-		if (q - p < 0)
-			continue;
-		use_config(p, q - p);
+		q = p;
+		while (*q && (isalnum(*q) || *q == '_'))
+			q++;
+		if (memcmp(q - 7, "_MODULE", 7) == 0)
+			r = q - 7;
+		else
+			r = q;
+		if (r > p)
+			use_config(p, r - p);
+		p = q;
 	}
 }
 
@@ -291,7 +270,7 @@ static void do_config_file(const char *filename)
 {
 	struct stat st;
 	int fd;
-	void *map;
+	char *map;
 
 	fd = open(filename, O_RDONLY);
 	if (fd < 0) {
@@ -308,18 +287,23 @@ static void do_config_file(const char *filename)
 		close(fd);
 		return;
 	}
-	map = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
-	if ((long) map == -1) {
-		perror("fixdep: mmap");
+	map = malloc(st.st_size + 1);
+	if (!map) {
+		perror("fixdep: malloc");
 		close(fd);
 		return;
 	}
+	if (read(fd, map, st.st_size) != st.st_size) {
+		perror("fixdep: read");
+		close(fd);
+		return;
+	}
+	map[st.st_size] = '\0';
+	close(fd);
 
-	parse_config_file(map, st.st_size);
-
-	munmap(map, st.st_size);
+	parse_config_file(map);
 
-	close(fd);
+	free(map);
 }
 
 /*
@@ -446,22 +430,8 @@ static void print_deps(void)
 	close(fd);
 }
 
-static void traps(void)
-{
-	static char test[] __attribute__((aligned(sizeof(int)))) = "CONF";
-	int *p = (int *)test;
-
-	if (*p != INT_CONF) {
-		fprintf(stderr, "fixdep: sizeof(int) != 4 or wrong endianness? %#x\n",
-			*p);
-		exit(2);
-	}
-}
-
 int main(int argc, char *argv[])
 {
-	traps();
-
 	if (argc == 5 && !strcmp(argv[1], "-e")) {
 		insert_extra_deps = 1;
 		argv++;
diff --git a/scripts/checkkconfigsymbols.py b/scripts/checkkconfigsymbols.py
index df643f60bb41..a32e4da4c117 100755
--- a/scripts/checkkconfigsymbols.py
+++ b/scripts/checkkconfigsymbols.py
@@ -1,98 +1,99 @@
-#!/usr/bin/env python2
+#!/usr/bin/env python3
 
 """Find Kconfig symbols that are referenced but not defined."""
 
-# (c) 2014-2015 Valentin Rothberg <valentinrothberg@gmail.com>
+# (c) 2014-2016 Valentin Rothberg <valentinrothberg@gmail.com>
 # (c) 2014 Stefan Hengelein <stefan.hengelein@fau.de>
 #
 # Licensed under the terms of the GNU GPL License version 2
 
 
+import argparse
 import difflib
 import os
 import re
 import signal
+import subprocess
 import sys
 from multiprocessing import Pool, cpu_count
-from optparse import OptionParser
-from subprocess import Popen, PIPE, STDOUT
 
 
 # regex expressions
 OPERATORS = r"&|\(|\)|\||\!"
-FEATURE = r"(?:\w*[A-Z0-9]\w*){2,}"
-DEF = r"^\s*(?:menu){,1}config\s+(" + FEATURE + r")\s*"
-EXPR = r"(?:" + OPERATORS + r"|\s|" + FEATURE + r")+"
+SYMBOL = r"(?:\w*[A-Z0-9]\w*){2,}"
+DEF = r"^\s*(?:menu){,1}config\s+(" + SYMBOL + r")\s*"
+EXPR = r"(?:" + OPERATORS + r"|\s|" + SYMBOL + r")+"
 DEFAULT = r"default\s+.*?(?:if\s.+){,1}"
 STMT = r"^\s*(?:if|select|depends\s+on|(?:" + DEFAULT + r"))\s+" + EXPR
-SOURCE_FEATURE = r"(?:\W|\b)+[D]{,1}CONFIG_(" + FEATURE + r")"
+SOURCE_SYMBOL = r"(?:\W|\b)+[D]{,1}CONFIG_(" + SYMBOL + r")"
 
 # regex objects
 REGEX_FILE_KCONFIG = re.compile(r".*Kconfig[\.\w+\-]*$")
-REGEX_FEATURE = re.compile(r'(?!\B)' + FEATURE + r'(?!\B)')
-REGEX_SOURCE_FEATURE = re.compile(SOURCE_FEATURE)
+REGEX_SYMBOL = re.compile(r'(?!\B)' + SYMBOL + r'(?!\B)')
+REGEX_SOURCE_SYMBOL = re.compile(SOURCE_SYMBOL)
 REGEX_KCONFIG_DEF = re.compile(DEF)
 REGEX_KCONFIG_EXPR = re.compile(EXPR)
 REGEX_KCONFIG_STMT = re.compile(STMT)
 REGEX_KCONFIG_HELP = re.compile(r"^\s+(help|---help---)\s*$")
-REGEX_FILTER_FEATURES = re.compile(r"[A-Za-z0-9]$")
+REGEX_FILTER_SYMBOLS = re.compile(r"[A-Za-z0-9]$")
 REGEX_NUMERIC = re.compile(r"0[xX][0-9a-fA-F]+|[0-9]+")
 REGEX_QUOTES = re.compile("(\"(.*?)\")")
 
 
 def parse_options():
     """The user interface of this module."""
-    usage = "%prog [options]\n\n"                                              \
-            "Run this tool to detect Kconfig symbols that are referenced but " \
-            "not defined in\nKconfig.  The output of this tool has the "       \
-            "format \'Undefined symbol\\tFile list\'\n\n"                      \
-            "If no option is specified, %prog will default to check your\n"    \
-            "current tree.  Please note that specifying commits will "         \
-            "\'git reset --hard\'\nyour current tree!  You may save "          \
-            "uncommitted changes to avoid losing data."
-
-    parser = OptionParser(usage=usage)
-
-    parser.add_option('-c', '--commit', dest='commit', action='store',
-                      default="",
-                      help="Check if the specified commit (hash) introduces "
-                           "undefined Kconfig symbols.")
-
-    parser.add_option('-d', '--diff', dest='diff', action='store',
-                      default="",
-                      help="Diff undefined symbols between two commits.  The "
-                           "input format bases on Git log's "
-                           "\'commmit1..commit2\'.")
-
-    parser.add_option('-f', '--find', dest='find', action='store_true',
-                      default=False,
-                      help="Find and show commits that may cause symbols to be "
-                           "missing.  Required to run with --diff.")
-
-    parser.add_option('-i', '--ignore', dest='ignore', action='store',
-                      default="",
-                      help="Ignore files matching this pattern.  Note that "
-                           "the pattern needs to be a Python regex.  To "
-                           "ignore defconfigs, specify -i '.*defconfig'.")
-
-    parser.add_option('-s', '--sim', dest='sim', action='store', default="",
-                      help="Print a list of maximum 10 string-similar symbols.")
-
-    parser.add_option('', '--force', dest='force', action='store_true',
-                      default=False,
-                      help="Reset current Git tree even when it's dirty.")
-
-    (opts, _) = parser.parse_args()
-
-    if opts.commit and opts.diff:
+    usage = "Run this tool to detect Kconfig symbols that are referenced but " \
+            "not defined in Kconfig.  If no option is specified, "             \
+            "checkkconfigsymbols defaults to check your current tree.  "       \
+            "Please note that specifying commits will 'git reset --hard\' "    \
+            "your current tree!  You may save uncommitted changes to avoid "   \
+            "losing data."
+
+    parser = argparse.ArgumentParser(description=usage)
+
+    parser.add_argument('-c', '--commit', dest='commit', action='store',
+                        default="",
+                        help="check if the specified commit (hash) introduces "
+                             "undefined Kconfig symbols")
+
+    parser.add_argument('-d', '--diff', dest='diff', action='store',
+                        default="",
+                        help="diff undefined symbols between two commits "
+                             "(e.g., -d commmit1..commit2)")
+
+    parser.add_argument('-f', '--find', dest='find', action='store_true',
+                        default=False,
+                        help="find and show commits that may cause symbols to be "
+                             "missing (required to run with --diff)")
+
+    parser.add_argument('-i', '--ignore', dest='ignore', action='store',
+                        default="",
+                        help="ignore files matching this Python regex "
+                             "(e.g., -i '.*defconfig')")
+
+    parser.add_argument('-s', '--sim', dest='sim', action='store', default="",
+                        help="print a list of max. 10 string-similar symbols")
+
+    parser.add_argument('--force', dest='force', action='store_true',
+                        default=False,
+                        help="reset current Git tree even when it's dirty")
+
+    parser.add_argument('--no-color', dest='color', action='store_false',
+                        default=True,
+                        help="don't print colored output (default when not "
+                             "outputting to a terminal)")
+
+    args = parser.parse_args()
+
+    if args.commit and args.diff:
         sys.exit("Please specify only one option at once.")
 
-    if opts.diff and not re.match(r"^[\w\-\.]+\.\.[\w\-\.]+$", opts.diff):
+    if args.diff and not re.match(r"^[\w\-\.]+\.\.[\w\-\.]+$", args.diff):
         sys.exit("Please specify valid input in the following format: "
                  "\'commit1..commit2\'")
 
-    if opts.commit or opts.diff:
-        if not opts.force and tree_is_dirty():
+    if args.commit or args.diff:
+        if not args.force and tree_is_dirty():
             sys.exit("The current Git tree is dirty (see 'git status').  "
                      "Running this script may\ndelete important data since it "
                      "calls 'git reset --hard' for some performance\nreasons. "
@@ -100,138 +101,148 @@ def parse_options():
                      "'--force' if you\nwant to ignore this warning and "
                      "continue.")
 
-    if opts.commit:
-        opts.find = False
+    if args.commit:
+        args.find = False
 
-    if opts.ignore:
+    if args.ignore:
         try:
-            re.match(opts.ignore, "this/is/just/a/test.c")
+            re.match(args.ignore, "this/is/just/a/test.c")
         except:
             sys.exit("Please specify a valid Python regex.")
 
-    return opts
+    return args
 
 
 def main():
     """Main function of this module."""
-    opts = parse_options()
+    args = parse_options()
 
-    if opts.sim and not opts.commit and not opts.diff:
-        sims = find_sims(opts.sim, opts.ignore)
+    global COLOR
+    COLOR = args.color and sys.stdout.isatty()
+
+    if args.sim and not args.commit and not args.diff:
+        sims = find_sims(args.sim, args.ignore)
         if sims:
-            print "%s: %s" % (yel("Similar symbols"), ', '.join(sims))
+            print("%s: %s" % (yel("Similar symbols"), ', '.join(sims)))
         else:
-            print "%s: no similar symbols found" % yel("Similar symbols")
+            print("%s: no similar symbols found" % yel("Similar symbols"))
         sys.exit(0)
 
     # dictionary of (un)defined symbols
     defined = {}
     undefined = {}
 
-    if opts.commit or opts.diff:
+    if args.commit or args.diff:
         head = get_head()
 
         # get commit range
         commit_a = None
         commit_b = None
-        if opts.commit:
-            commit_a = opts.commit + "~"
-            commit_b = opts.commit
-        elif opts.diff:
-            split = opts.diff.split("..")
+        if args.commit:
+            commit_a = args.commit + "~"
+            commit_b = args.commit
+        elif args.diff:
+            split = args.diff.split("..")
             commit_a = split[0]
             commit_b = split[1]
             undefined_a = {}
             undefined_b = {}
 
         # get undefined items before the commit
-        execute("git reset --hard %s" % commit_a)
-        undefined_a, _ = check_symbols(opts.ignore)
+        reset(commit_a)
+        undefined_a, _ = check_symbols(args.ignore)
 
         # get undefined items for the commit
-        execute("git reset --hard %s" % commit_b)
-        undefined_b, defined = check_symbols(opts.ignore)
+        reset(commit_b)
+        undefined_b, defined = check_symbols(args.ignore)
 
         # report cases that are present for the commit but not before
-        for feature in sorted(undefined_b):
-            # feature has not been undefined before
-            if not feature in undefined_a:
-                files = sorted(undefined_b.get(feature))
-                undefined[feature] = files
-            # check if there are new files that reference the undefined feature
+        for symbol in sorted(undefined_b):
+            # symbol has not been undefined before
+            if symbol not in undefined_a:
+                files = sorted(undefined_b.get(symbol))
+                undefined[symbol] = files
+            # check if there are new files that reference the undefined symbol
             else:
-                files = sorted(undefined_b.get(feature) -
-                               undefined_a.get(feature))
+                files = sorted(undefined_b.get(symbol) -
+                               undefined_a.get(symbol))
                 if files:
-                    undefined[feature] = files
+                    undefined[symbol] = files
 
         # reset to head
-        execute("git reset --hard %s" % head)
+        reset(head)
 
     # default to check the entire tree
     else:
-        undefined, defined = check_symbols(opts.ignore)
+        undefined, defined = check_symbols(args.ignore)
 
     # now print the output
-    for feature in sorted(undefined):
-        print red(feature)
+    for symbol in sorted(undefined):
+        print(red(symbol))
 
-        files = sorted(undefined.get(feature))
-        print "%s: %s" % (yel("Referencing files"), ", ".join(files))
+        files = sorted(undefined.get(symbol))
+        print("%s: %s" % (yel("Referencing files"), ", ".join(files)))
 
-        sims = find_sims(feature, opts.ignore, defined)
+        sims = find_sims(symbol, args.ignore, defined)
         sims_out = yel("Similar symbols")
         if sims:
-            print "%s: %s" % (sims_out, ', '.join(sims))
+            print("%s: %s" % (sims_out, ', '.join(sims)))
         else:
-            print "%s: %s" % (sims_out, "no similar symbols found")
+            print("%s: %s" % (sims_out, "no similar symbols found"))
 
-        if opts.find:
-            print "%s:" % yel("Commits changing symbol")
-            commits = find_commits(feature, opts.diff)
+        if args.find:
+            print("%s:" % yel("Commits changing symbol"))
+            commits = find_commits(symbol, args.diff)
             if commits:
                 for commit in commits:
                     commit = commit.split(" ", 1)
-                    print "\t- %s (\"%s\")" % (yel(commit[0]), commit[1])
+                    print("\t- %s (\"%s\")" % (yel(commit[0]), commit[1]))
             else:
-                print "\t- no commit found"
-        print  #  new line
+                print("\t- no commit found")
+        print()  # new line
+
+
+def reset(commit):
+    """Reset current git tree to %commit."""
+    execute(["git", "reset", "--hard", commit])
 
 
 def yel(string):
     """
     Color %string yellow.
     """
-    return "\033[33m%s\033[0m" % string
+    return "\033[33m%s\033[0m" % string if COLOR else string
 
 
 def red(string):
     """
     Color %string red.
     """
-    return "\033[31m%s\033[0m" % string
+    return "\033[31m%s\033[0m" % string if COLOR else string
 
 
 def execute(cmd):
     """Execute %cmd and return stdout.  Exit in case of error."""
-    pop = Popen(cmd, stdout=PIPE, stderr=STDOUT, shell=True)
-    (stdout, _) = pop.communicate()  # wait until finished
-    if pop.returncode != 0:
-        sys.exit(stdout)
+    try:
+        stdout = subprocess.check_output(cmd, stderr=subprocess.STDOUT, shell=False)
+        stdout = stdout.decode(errors='replace')
+    except subprocess.CalledProcessError as fail:
+        exit(fail)
     return stdout
 
 
 def find_commits(symbol, diff):
     """Find commits changing %symbol in the given range of %diff."""
-    commits = execute("git log --pretty=oneline --abbrev-commit -G %s %s"
-                      % (symbol, diff))
+    commits = execute(["git", "log", "--pretty=oneline",
+                       "--abbrev-commit", "-G",
+                       symbol, diff])
     return [x for x in commits.split("\n") if x]
 
 
 def tree_is_dirty():
     """Return true if the current working tree is dirty (i.e., if any file has
     been added, deleted, modified, renamed or copied but not committed)."""
-    stdout = execute("git status --porcelain")
+    stdout = execute(["git", "status", "--porcelain"])
     for line in stdout:
         if re.findall(r"[URMADC]{1}", line[:2]):
             return True
@@ -240,13 +251,13 @@ def tree_is_dirty():
 
 def get_head():
     """Return commit hash of current HEAD."""
-    stdout = execute("git rev-parse HEAD")
+    stdout = execute(["git", "rev-parse", "HEAD"])
     return stdout.strip('\n')
 
 
 def partition(lst, size):
     """Partition list @lst into eveni-sized lists of size @size."""
-    return [lst[i::size] for i in xrange(size)]
+    return [lst[i::size] for i in range(size)]
 
 
 def init_worker():
@@ -254,7 +265,7 @@ def init_worker():
     signal.signal(signal.SIGINT, signal.SIG_IGN)
 
 
-def find_sims(symbol, ignore, defined = []):
+def find_sims(symbol, ignore, defined=[]):
     """Return a list of max. ten Kconfig symbols that are string-similar to
     @symbol."""
     if defined:
@@ -279,7 +290,7 @@ def find_sims(symbol, ignore, defined = []):
 def get_files():
     """Return a list of all files in the current git directory."""
     # use 'git ls-files' to get the worklist
-    stdout = execute("git ls-files")
+    stdout = execute(["git", "ls-files"])
     if len(stdout) > 0 and stdout[-1] == "\n":
         stdout = stdout[:-1]
 
@@ -311,8 +322,8 @@ def check_symbols_helper(pool, ignore):
     check_symbols() in order to properly terminate running worker processes."""
     source_files = []
     kconfig_files = []
-    defined_features = []
-    referenced_features = dict()  # {file: [features]}
+    defined_symbols = []
+    referenced_symbols = dict()  # {file: [symbols]}
 
     for gitfile in get_files():
         if REGEX_FILE_KCONFIG.match(gitfile):
@@ -326,76 +337,75 @@ def check_symbols_helper(pool, ignore):
     # parse source files
     arglist = partition(source_files, cpu_count())
     for res in pool.map(parse_source_files, arglist):
-        referenced_features.update(res)
-
+        referenced_symbols.update(res)
 
     # parse kconfig files
     arglist = []
     for part in partition(kconfig_files, cpu_count()):
         arglist.append((part, ignore))
     for res in pool.map(parse_kconfig_files, arglist):
-        defined_features.extend(res[0])
-        referenced_features.update(res[1])
-    defined_features = set(defined_features)
+        defined_symbols.extend(res[0])
+        referenced_symbols.update(res[1])
+    defined_symbols = set(defined_symbols)
 
-    # inverse mapping of referenced_features to dict(feature: [files])
+    # inverse mapping of referenced_symbols to dict(symbol: [files])
     inv_map = dict()
-    for _file, features in referenced_features.iteritems():
-        for feature in features:
-            inv_map[feature] = inv_map.get(feature, set())
-            inv_map[feature].add(_file)
-    referenced_features = inv_map
-
-    undefined = {}  # {feature: [files]}
-    for feature in sorted(referenced_features):
+    for _file, symbols in referenced_symbols.items():
+        for symbol in symbols:
+            inv_map[symbol] = inv_map.get(symbol, set())
+            inv_map[symbol].add(_file)
+    referenced_symbols = inv_map
+
+    undefined = {}  # {symbol: [files]}
+    for symbol in sorted(referenced_symbols):
         # filter some false positives
-        if feature == "FOO" or feature == "BAR" or \
-                feature == "FOO_BAR" or feature == "XXX":
+        if symbol == "FOO" or symbol == "BAR" or \
+                symbol == "FOO_BAR" or symbol == "XXX":
             continue
-        if feature not in defined_features:
-            if feature.endswith("_MODULE"):
+        if symbol not in defined_symbols:
+            if symbol.endswith("_MODULE"):
                 # avoid false positives for kernel modules
-                if feature[:-len("_MODULE")] in defined_features:
+                if symbol[:-len("_MODULE")] in defined_symbols:
                     continue
-            undefined[feature] = referenced_features.get(feature)
-    return undefined, defined_features
+            undefined[symbol] = referenced_symbols.get(symbol)
+    return undefined, defined_symbols
 
 
 def parse_source_files(source_files):
     """Parse each source file in @source_files and return dictionary with source
     files as keys and lists of references Kconfig symbols as values."""
-    referenced_features = dict()
+    referenced_symbols = dict()
     for sfile in source_files:
-        referenced_features[sfile] = parse_source_file(sfile)
-    return referenced_features
+        referenced_symbols[sfile] = parse_source_file(sfile)
+    return referenced_symbols
 
 
 def parse_source_file(sfile):
-    """Parse @sfile and return a list of referenced Kconfig features."""
+    """Parse @sfile and return a list of referenced Kconfig symbols."""
     lines = []
     references = []
 
     if not os.path.exists(sfile):
         return references
 
-    with open(sfile, "r") as stream:
+    with open(sfile, "r", encoding='utf-8', errors='replace') as stream:
         lines = stream.readlines()
 
     for line in lines:
-        if not "CONFIG_" in line:
+        if "CONFIG_" not in line:
             continue
-        features = REGEX_SOURCE_FEATURE.findall(line)
-        for feature in features:
-            if not REGEX_FILTER_FEATURES.search(feature):
+        symbols = REGEX_SOURCE_SYMBOL.findall(line)
+        for symbol in symbols:
+            if not REGEX_FILTER_SYMBOLS.search(symbol):
                 continue
-            references.append(feature)
+            references.append(symbol)
 
     return references
 
 
-def get_features_in_line(line):
-    """Return mentioned Kconfig features in @line."""
-    return REGEX_FEATURE.findall(line)
+def get_symbols_in_line(line):
+    """Return mentioned Kconfig symbols in @line."""
+    return REGEX_SYMBOL.findall(line)
 
 
 def parse_kconfig_files(args):
@@ -404,21 +414,21 @@ def parse_kconfig_files(args):
     pattern."""
     kconfig_files = args[0]
     ignore = args[1]
-    defined_features = []
-    referenced_features = dict()
+    defined_symbols = []
+    referenced_symbols = dict()
 
     for kfile in kconfig_files:
         defined, references = parse_kconfig_file(kfile)
-        defined_features.extend(defined)
+        defined_symbols.extend(defined)
         if ignore and re.match(ignore, kfile):
             # do not collect references for files that match the ignore pattern
             continue
-        referenced_features[kfile] = references
-    return (defined_features, referenced_features)
+        referenced_symbols[kfile] = references
+    return (defined_symbols, referenced_symbols)
 
 
 def parse_kconfig_file(kfile):
-    """Parse @kfile and update feature definitions and references."""
+    """Parse @kfile and update symbol definitions and references."""
     lines = []
     defined = []
     references = []
@@ -427,7 +437,7 @@ def parse_kconfig_file(kfile):
     if not os.path.exists(kfile):
         return defined, references
 
-    with open(kfile, "r") as stream:
+    with open(kfile, "r", encoding='utf-8', errors='replace') as stream:
         lines = stream.readlines()
 
     for i in range(len(lines)):
@@ -436,8 +446,8 @@ def parse_kconfig_file(kfile):
         line = line.split("#")[0]  # ignore comments
 
         if REGEX_KCONFIG_DEF.match(line):
-            feature_def = REGEX_KCONFIG_DEF.findall(line)
-            defined.append(feature_def[0])
+            symbol_def = REGEX_KCONFIG_DEF.findall(line)
+            defined.append(symbol_def[0])
             skip = False
         elif REGEX_KCONFIG_HELP.match(line):
             skip = True
@@ -446,18 +456,18 @@ def parse_kconfig_file(kfile):
             pass
         elif REGEX_KCONFIG_STMT.match(line):
             line = REGEX_QUOTES.sub("", line)
-            features = get_features_in_line(line)
+            symbols = get_symbols_in_line(line)
             # multi-line statements
             while line.endswith("\\"):
                 i += 1
                 line = lines[i]
                 line = line.strip('\n')
-                features.extend(get_features_in_line(line))
-            for feature in set(features):
-                if REGEX_NUMERIC.match(feature):
+                symbols.extend(get_symbols_in_line(line))
+            for symbol in set(symbols):
+                if REGEX_NUMERIC.match(symbol):
                     # ignore numeric values
                     continue
-                references.append(feature)
+                references.append(symbol)
 
     return defined, references
 
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 206a6b346a8d..a8368d1c4348 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -54,6 +54,7 @@ my $min_conf_desc_length = 4;
 my $spelling_file = "$D/spelling.txt";
 my $codespell = 0;
 my $codespellfile = "/usr/share/codespell/dictionary.txt";
+my $conststructsfile = "$D/const_structs.checkpatch";
 my $color = 1;
 my $allow_c99_comments = 1;
 
@@ -523,7 +524,11 @@ our @mode_permission_funcs = (
 	["module_param_array_named", 5],
 	["debugfs_create_(?:file|u8|u16|u32|u64|x8|x16|x32|x64|size_t|atomic_t|bool|blob|regset32|u32_array)", 2],
 	["proc_create(?:_data|)", 2],
-	["(?:CLASS|DEVICE|SENSOR)_ATTR", 2],
+	["(?:CLASS|DEVICE|SENSOR|SENSOR_DEVICE|IIO_DEVICE)_ATTR", 2],
+	["IIO_DEV_ATTR_[A-Z_]+", 1],
+	["SENSOR_(?:DEVICE_|)ATTR_2", 2],
+	["SENSOR_TEMPLATE(?:_2|)", 3],
+	["__ATTR", 2],
 );
 
 #Create a search pattern for all these functions to speed up a loop below
@@ -541,6 +546,32 @@ our $mode_perms_world_writable = qr{
 	0[0-7][0-7][2367]
 }x;
 
+our %mode_permission_string_types = (
+	"S_IRWXU" => 0700,
+	"S_IRUSR" => 0400,
+	"S_IWUSR" => 0200,
+	"S_IXUSR" => 0100,
+	"S_IRWXG" => 0070,
+	"S_IRGRP" => 0040,
+	"S_IWGRP" => 0020,
+	"S_IXGRP" => 0010,
+	"S_IRWXO" => 0007,
+	"S_IROTH" => 0004,
+	"S_IWOTH" => 0002,
+	"S_IXOTH" => 0001,
+	"S_IRWXUGO" => 0777,
+	"S_IRUGO" => 0444,
+	"S_IWUGO" => 0222,
+	"S_IXUGO" => 0111,
+);
+
+#Create a search pattern for all these strings to speed up a loop below
+our $mode_perms_string_search = "";
+foreach my $entry (keys %mode_permission_string_types) {
+	$mode_perms_string_search .= '|' if ($mode_perms_string_search ne "");
+	$mode_perms_string_search .= $entry;
+}
+
 our $allowed_asm_includes = qr{(?x:
 	irq|
 	memory|
@@ -598,6 +629,29 @@ if ($codespell) {
 
 $misspellings = join("|", sort keys %spelling_fix) if keys %spelling_fix;
 
+my $const_structs = "";
+if (open(my $conststructs, '<', $conststructsfile)) {
+	while (<$conststructs>) {
+		my $line = $_;
+
+		$line =~ s/\s*\n?$//g;
+		$line =~ s/^\s*//g;
+
+		next if ($line =~ m/^\s*#/);
+		next if ($line =~ m/^\s*$/);
+		if ($line =~ /\s/) {
+			print("$conststructsfile: '$line' invalid - ignored\n");
+			next;
+		}
+
+		$const_structs .= '|' if ($const_structs ne "");
+		$const_structs .= $line;
+	}
+	close($conststructsfile);
+} else {
+	warn "No structs that should be const will be found - file '$conststructsfile': $!\n";
+}
+
 sub build_types {
 	my $mods = "(?x:  \n" . join("|\n  ", (@modifierList, @modifierListFile)) . "\n)";
 	my $all = "(?x:  \n" . join("|\n  ", (@typeList, @typeListFile)) . "\n)";
@@ -704,6 +758,16 @@ sub seed_camelcase_file {
 	}
 }
 
+sub is_maintained_obsolete {
+	my ($filename) = @_;
+
+	return 0 if (!(-e "$root/scripts/get_maintainer.pl"));
+
+	my $status = `perl $root/scripts/get_maintainer.pl --status --nom --nol --nogit --nogit-fallback -f $filename 2>&1`;
+
+	return $status =~ /obsolete/i;
+}
+
 my $camelcase_seeded = 0;
 sub seed_camelcase_includes {
 	return if ($camelcase_seeded);
@@ -2289,6 +2353,10 @@ sub process {
 		}
 
 		if ($found_file) {
+			if (is_maintained_obsolete($realfile)) {
+				WARN("OBSOLETE",
+				     "$realfile is marked as 'obsolete' in the MAINTAINERS hierarchy.  No unnecessary modifications please.\n");
+			}
 			if ($realfile =~ m@^(?:drivers/net/|net/|drivers/staging/)@) {
 				$check = 1;
 			} else {
@@ -2939,6 +3007,30 @@ sub process {
 			     "Block comments use a trailing */ on a separate line\n" . $herecurr);
 		}
 
+# Block comment * alignment
+		if ($prevline =~ /$;[ \t]*$/ &&			#ends in comment
+		    $line =~ /^\+[ \t]*$;/ &&			#leading comment
+		    $rawline =~ /^\+[ \t]*\*/ &&		#leading *
+		    (($prevrawline =~ /^\+.*?\/\*/ &&		#leading /*
+		      $prevrawline !~ /\*\/[ \t]*$/) ||		#no trailing */
+		     $prevrawline =~ /^\+[ \t]*\*/)) {		#leading *
+			my $oldindent;
+			$prevrawline =~ m@^\+([ \t]*/?)\*@;
+			if (defined($1)) {
+				$oldindent = expand_tabs($1);
+			} else {
+				$prevrawline =~ m@^\+(.*/?)\*@;
+				$oldindent = expand_tabs($1);
+			}
+			$rawline =~ m@^\+([ \t]*)\*@;
+			my $newindent = $1;
+			$newindent = expand_tabs($newindent);
+			if (length($oldindent) ne length($newindent)) {
+				WARN("BLOCK_COMMENT_STYLE",
+				     "Block comments should align the * on each line\n" . $hereprev);
+			}
+		}
+
 # check for missing blank lines after struct/union declarations
 # with exceptions for various attributes and macros
 		if ($prevline =~ /^[\+ ]};?\s*$/ &&
@@ -4665,7 +4757,17 @@ sub process {
 			$has_flow_statement = 1 if ($ctx =~ /\b(goto|return)\b/);
 			$has_arg_concat = 1 if ($ctx =~ /\#\#/ && $ctx !~ /\#\#\s*(?:__VA_ARGS__|args)\b/);
 
-			$dstat =~ s/^.\s*\#\s*define\s+$Ident(?:\([^\)]*\))?\s*//;
+			$dstat =~ s/^.\s*\#\s*define\s+$Ident(\([^\)]*\))?\s*//;
+			my $define_args = $1;
+			my $define_stmt = $dstat;
+			my @def_args = ();
+
+			if (defined $define_args && $define_args ne "") {
+				$define_args = substr($define_args, 1, length($define_args) - 2);
+				$define_args =~ s/\s*//g;
+				@def_args = split(",", $define_args);
+			}
+
 			$dstat =~ s/$;//g;
 			$dstat =~ s/\\\n.//g;
 			$dstat =~ s/^\s*//s;
@@ -4701,6 +4803,15 @@ sub process {
 				^\[
 			}x;
 			#print "REST<$rest> dstat<$dstat> ctx<$ctx>\n";
+
+			$ctx =~ s/\n*$//;
+			my $herectx = $here . "\n";
+			my $stmt_cnt = statement_rawlines($ctx);
+
+			for (my $n = 0; $n < $stmt_cnt; $n++) {
+				$herectx .= raw_line($linenr, $n) . "\n";
+			}
+
 			if ($dstat ne '' &&
 			    $dstat !~ /^(?:$Ident|-?$Constant),$/ &&			# 10, // foo(),
 			    $dstat !~ /^(?:$Ident|-?$Constant);$/ &&			# foo();
@@ -4716,13 +4827,6 @@ sub process {
 			    $dstat !~ /^\(\{/ &&						# ({...
 			    $ctx !~ /^.\s*#\s*define\s+TRACE_(?:SYSTEM|INCLUDE_FILE|INCLUDE_PATH)\b/)
 			{
-				$ctx =~ s/\n*$//;
-				my $herectx = $here . "\n";
-				my $cnt = statement_rawlines($ctx);
-
-				for (my $n = 0; $n < $cnt; $n++) {
-					$herectx .= raw_line($linenr, $n) . "\n";
-				}
 
 				if ($dstat =~ /;/) {
 					ERROR("MULTISTATEMENT_MACRO_USE_DO_WHILE",
@@ -4731,6 +4835,46 @@ sub process {
 					ERROR("COMPLEX_MACRO",
 					      "Macros with complex values should be enclosed in parentheses\n" . "$herectx");
 				}
+
+			}
+
+			# Make $define_stmt single line, comment-free, etc
+			my @stmt_array = split('\n', $define_stmt);
+			my $first = 1;
+			$define_stmt = "";
+			foreach my $l (@stmt_array) {
+				$l =~ s/\\$//;
+				if ($first) {
+					$define_stmt = $l;
+					$first = 0;
+				} elsif ($l =~ /^[\+ ]/) {
+					$define_stmt .= substr($l, 1);
+				}
+			}
+			$define_stmt =~ s/$;//g;
+			$define_stmt =~ s/\s+/ /g;
+			$define_stmt = trim($define_stmt);
+
+# check if any macro arguments are reused (ignore '...' and 'type')
+			foreach my $arg (@def_args) {
+			        next if ($arg =~ /\.\.\./);
+			        next if ($arg =~ /^type$/i);
+				my $tmp = $define_stmt;
+				$tmp =~ s/\b(typeof|__typeof__|__builtin\w+|typecheck\s*\(\s*$Type\s*,|\#+)\s*\(*\s*$arg\s*\)*\b//g;
+				$tmp =~ s/\#+\s*$arg\b//g;
+				$tmp =~ s/\b$arg\s*\#\#//g;
+				my $use_cnt = $tmp =~ s/\b$arg\b//g;
+				if ($use_cnt > 1) {
+					CHK("MACRO_ARG_REUSE",
+					    "Macro argument reuse '$arg' - possible side-effects?\n" . "$herectx");
+				    }
+# check if any macro arguments may have other precedence issues
+				if ($define_stmt =~ m/($Operators)?\s*\b$arg\b\s*($Operators)?/m &&
+				    ((defined($1) && $1 ne ',') ||
+				     (defined($2) && $2 ne ','))) {
+					CHK("MACRO_ARG_PRECEDENCE",
+					    "Macro argument '$arg' may be better as '($arg)' to avoid precedence issues\n" . "$herectx");
+				}
 			}
 
 # check for macros with flow control, but without ## concatenation
@@ -5495,46 +5639,46 @@ sub process {
 		}
 
 # Check for memcpy(foo, bar, ETH_ALEN) that could be ether_addr_copy(foo, bar)
-		if ($^V && $^V ge 5.10.0 &&
-		    defined $stat &&
-		    $stat =~ /^\+(?:.*?)\bmemcpy\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\,\s*ETH_ALEN\s*\)/) {
-			if (WARN("PREFER_ETHER_ADDR_COPY",
-				 "Prefer ether_addr_copy() over memcpy() if the Ethernet addresses are __aligned(2)\n" . "$here\n$stat\n") &&
-			    $fix) {
-				$fixed[$fixlinenr] =~ s/\bmemcpy\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\,\s*ETH_ALEN\s*\)/ether_addr_copy($2, $7)/;
-			}
-		}
+#		if ($^V && $^V ge 5.10.0 &&
+#		    defined $stat &&
+#		    $stat =~ /^\+(?:.*?)\bmemcpy\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\,\s*ETH_ALEN\s*\)/) {
+#			if (WARN("PREFER_ETHER_ADDR_COPY",
+#				 "Prefer ether_addr_copy() over memcpy() if the Ethernet addresses are __aligned(2)\n" . "$here\n$stat\n") &&
+#			    $fix) {
+#				$fixed[$fixlinenr] =~ s/\bmemcpy\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\,\s*ETH_ALEN\s*\)/ether_addr_copy($2, $7)/;
+#			}
+#		}
 
 # Check for memcmp(foo, bar, ETH_ALEN) that could be ether_addr_equal*(foo, bar)
-		if ($^V && $^V ge 5.10.0 &&
-		    defined $stat &&
-		    $stat =~ /^\+(?:.*?)\bmemcmp\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\,\s*ETH_ALEN\s*\)/) {
-			WARN("PREFER_ETHER_ADDR_EQUAL",
-			     "Prefer ether_addr_equal() or ether_addr_equal_unaligned() over memcmp()\n" . "$here\n$stat\n")
-		}
+#		if ($^V && $^V ge 5.10.0 &&
+#		    defined $stat &&
+#		    $stat =~ /^\+(?:.*?)\bmemcmp\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\,\s*ETH_ALEN\s*\)/) {
+#			WARN("PREFER_ETHER_ADDR_EQUAL",
+#			     "Prefer ether_addr_equal() or ether_addr_equal_unaligned() over memcmp()\n" . "$here\n$stat\n")
+#		}
 
 # check for memset(foo, 0x0, ETH_ALEN) that could be eth_zero_addr
 # check for memset(foo, 0xFF, ETH_ALEN) that could be eth_broadcast_addr
-		if ($^V && $^V ge 5.10.0 &&
-		    defined $stat &&
-		    $stat =~ /^\+(?:.*?)\bmemset\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\,\s*ETH_ALEN\s*\)/) {
-
-			my $ms_val = $7;
-
-			if ($ms_val =~ /^(?:0x|)0+$/i) {
-				if (WARN("PREFER_ETH_ZERO_ADDR",
-					 "Prefer eth_zero_addr over memset()\n" . "$here\n$stat\n") &&
-				    $fix) {
-					$fixed[$fixlinenr] =~ s/\bmemset\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*,\s*ETH_ALEN\s*\)/eth_zero_addr($2)/;
-				}
-			} elsif ($ms_val =~ /^(?:0xff|255)$/i) {
-				if (WARN("PREFER_ETH_BROADCAST_ADDR",
-					 "Prefer eth_broadcast_addr() over memset()\n" . "$here\n$stat\n") &&
-				    $fix) {
-					$fixed[$fixlinenr] =~ s/\bmemset\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*,\s*ETH_ALEN\s*\)/eth_broadcast_addr($2)/;
-				}
-			}
-		}
+#		if ($^V && $^V ge 5.10.0 &&
+#		    defined $stat &&
+#		    $stat =~ /^\+(?:.*?)\bmemset\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\,\s*ETH_ALEN\s*\)/) {
+#
+#			my $ms_val = $7;
+#
+#			if ($ms_val =~ /^(?:0x|)0+$/i) {
+#				if (WARN("PREFER_ETH_ZERO_ADDR",
+#					 "Prefer eth_zero_addr over memset()\n" . "$here\n$stat\n") &&
+#				    $fix) {
+#					$fixed[$fixlinenr] =~ s/\bmemset\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*,\s*ETH_ALEN\s*\)/eth_zero_addr($2)/;
+#				}
+#			} elsif ($ms_val =~ /^(?:0xff|255)$/i) {
+#				if (WARN("PREFER_ETH_BROADCAST_ADDR",
+#					 "Prefer eth_broadcast_addr() over memset()\n" . "$here\n$stat\n") &&
+#				    $fix) {
+#					$fixed[$fixlinenr] =~ s/\bmemset\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*,\s*ETH_ALEN\s*\)/eth_broadcast_addr($2)/;
+#				}
+#			}
+#		}
 
 # typecasts on min/max could be min_t/max_t
 		if ($^V && $^V ge 5.10.0 &&
@@ -5654,6 +5798,19 @@ sub process {
 			     "externs should be avoided in .c files\n" .  $herecurr);
 		}
 
+		if ($realfile =~ /\.[ch]$/ && defined $stat &&
+		    $stat =~ /^.\s*(?:extern\s+)?$Type\s*$Ident\s*\(\s*([^{]+)\s*\)\s*;/s &&
+		    $1 ne "void") {
+			my $args = trim($1);
+			while ($args =~ m/\s*($Type\s*(?:$Ident|\(\s*\*\s*$Ident?\s*\)\s*$balanced_parens)?)/g) {
+				my $arg = trim($1);
+				if ($arg =~ /^$Type$/ && $arg !~ /enum\s+$Ident$/) {
+					WARN("FUNCTION_ARGUMENTS",
+					     "function definition argument '$arg' should also have an identifier name\n" . $herecurr);
+				}
+			}
+		}
+
 # checks for new __setup's
 		if ($rawline =~ /\b__setup\("([^"]*)"/) {
 			my $name = $1;
@@ -5853,46 +6010,6 @@ sub process {
 		}
 
 # check for various structs that are normally const (ops, kgdb, device_tree)
-		my $const_structs = qr{
-				acpi_dock_ops|
-				address_space_operations|
-				backlight_ops|
-				block_device_operations|
-				dentry_operations|
-				dev_pm_ops|
-				dma_map_ops|
-				extent_io_ops|
-				file_lock_operations|
-				file_operations|
-				hv_ops|
-				ide_dma_ops|
-				intel_dvo_dev_ops|
-				item_operations|
-				iwl_ops|
-				kgdb_arch|
-				kgdb_io|
-				kset_uevent_ops|
-				lock_manager_operations|
-				microcode_ops|
-				mtrr_ops|
-				neigh_ops|
-				nlmsvc_binding|
-				of_device_id|
-				pci_raw_ops|
-				pipe_buf_operations|
-				platform_hibernation_ops|
-				platform_suspend_ops|
-				proto_ops|
-				rpc_pipe_ops|
-				seq_operations|
-				snd_ac97_build_ops|
-				soc_pcmcia_socket_ops|
-				stacktrace_ops|
-				sysfs_ops|
-				tty_operations|
-				uart_ops|
-				usb_mon_operations|
-				wd_ops}x;
 		if ($line !~ /\bconst\b/ &&
 		    $line =~ /\bstruct\s+($const_structs)\b/) {
 			WARN("CONST_STRUCT",
@@ -5979,34 +6096,69 @@ sub process {
 # Mode permission misuses where it seems decimal should be octal
 # This uses a shortcut match to avoid unnecessary uses of a slow foreach loop
 		if ($^V && $^V ge 5.10.0 &&
+		    defined $stat &&
 		    $line =~ /$mode_perms_search/) {
 			foreach my $entry (@mode_permission_funcs) {
 				my $func = $entry->[0];
 				my $arg_pos = $entry->[1];
 
+				my $lc = $stat =~ tr@\n@@;
+				$lc = $lc + $linenr;
+				my $stat_real = raw_line($linenr, 0);
+				for (my $count = $linenr + 1; $count <= $lc; $count++) {
+					$stat_real = $stat_real . "\n" . raw_line($count, 0);
+				}
+
 				my $skip_args = "";
 				if ($arg_pos > 1) {
 					$arg_pos--;
 					$skip_args = "(?:\\s*$FuncArg\\s*,\\s*){$arg_pos,$arg_pos}";
 				}
-				my $test = "\\b$func\\s*\\(${skip_args}([\\d]+)\\s*[,\\)]";
-				if ($line =~ /$test/) {
+				my $test = "\\b$func\\s*\\(${skip_args}($FuncArg(?:\\|\\s*$FuncArg)*)\\s*[,\\)]";
+				if ($stat =~ /$test/) {
 					my $val = $1;
 					$val = $6 if ($skip_args ne "");
-
-					if ($val !~ /^0$/ &&
-					    (($val =~ /^$Int$/ && $val !~ /^$Octal$/) ||
-					     length($val) ne 4)) {
+					if (($val =~ /^$Int$/ && $val !~ /^$Octal$/) ||
+					    ($val =~ /^$Octal$/ && length($val) ne 4)) {
 						ERROR("NON_OCTAL_PERMISSIONS",
-						      "Use 4 digit octal (0777) not decimal permissions\n" . $herecurr);
-					} elsif ($val =~ /^$Octal$/ && (oct($val) & 02)) {
+						      "Use 4 digit octal (0777) not decimal permissions\n" . "$here\n" . $stat_real);
+					}
+					if ($val =~ /^$Octal$/ && (oct($val) & 02)) {
 						ERROR("EXPORTED_WORLD_WRITABLE",
-						      "Exporting writable files is usually an error. Consider more restrictive permissions.\n" . $herecurr);
+						      "Exporting writable files is usually an error. Consider more restrictive permissions.\n" . "$here\n" . $stat_real);
 					}
 				}
 			}
 		}
 
+# check for uses of S_<PERMS> that could be octal for readability
+		if ($line =~ /\b$mode_perms_string_search\b/) {
+			my $val = "";
+			my $oval = "";
+			my $to = 0;
+			my $curpos = 0;
+			my $lastpos = 0;
+			while ($line =~ /\b(($mode_perms_string_search)\b(?:\s*\|\s*)?\s*)/g) {
+				$curpos = pos($line);
+				my $match = $2;
+				my $omatch = $1;
+				last if ($lastpos > 0 && ($curpos - length($omatch) != $lastpos));
+				$lastpos = $curpos;
+				$to |= $mode_permission_string_types{$match};
+				$val .= '\s*\|\s*' if ($val ne "");
+				$val .= $match;
+				$oval .= $omatch;
+			}
+			$oval =~ s/^\s*\|\s*//;
+			$oval =~ s/\s*\|\s*$//;
+			my $octal = sprintf("%04o", $to);
+			if (WARN("SYMBOLIC_PERMS",
+				 "Symbolic permissions '$oval' are not preferred. Consider using octal permissions '$octal'.\n" . $herecurr) &&
+			    $fix) {
+				$fixed[$fixlinenr] =~ s/$val/$octal/;
+			}
+		}
+
 # validate content of MODULE_LICENSE against list from include/linux/module.h
 		if ($line =~ /\bMODULE_LICENSE\s*\(\s*($String)\s*\)/) {
 			my $extracted_string = get_quoted_string($line, $rawline);
diff --git a/scripts/coccicheck b/scripts/coccicheck
index c92c1528a54d..ec487b8e7051 100755
--- a/scripts/coccicheck
+++ b/scripts/coccicheck
@@ -1,7 +1,7 @@
 #!/bin/bash
 # Linux kernel coccicheck
 #
-# Read Documentation/coccinelle.txt
+# Read Documentation/dev-tools/coccinelle.rst
 #
 # This script requires at least spatch
 # version 1.0.0-rc11.
diff --git a/scripts/coccinelle/api/memdup_user.cocci b/scripts/coccinelle/api/memdup_user.cocci
index c606231b0e46..2a5aea8e8487 100644
--- a/scripts/coccinelle/api/memdup_user.cocci
+++ b/scripts/coccinelle/api/memdup_user.cocci
@@ -15,11 +15,11 @@ virtual org
 virtual report
 
 @depends on patch@
-expression from,to,size,flag;
+expression from,to,size;
 identifier l1,l2;
 @@
 
--  to = \(kmalloc\|kzalloc\)(size,flag);
+-  to = \(kmalloc\|kzalloc\)(size,GFP_KERNEL);
 +  to = memdup_user(from,size);
    if (
 -      to==NULL
@@ -37,12 +37,12 @@ identifier l1,l2;
 -  }
 
 @r depends on !patch@
-expression from,to,size,flag;
+expression from,to,size;
 position p;
 statement S1,S2;
 @@
 
-*  to = \(kmalloc@p\|kzalloc@p\)(size,flag);
+*  to = \(kmalloc@p\|kzalloc@p\)(size,GFP_KERNEL);
    if (to==NULL || ...) S1
    if (copy_from_user(to, from, size) != 0)
    S2
diff --git a/scripts/coccinelle/api/pm_runtime.cocci b/scripts/coccinelle/api/pm_runtime.cocci
index 89b98a2f7a6f..d67ccf5f8227 100644
--- a/scripts/coccinelle/api/pm_runtime.cocci
+++ b/scripts/coccinelle/api/pm_runtime.cocci
@@ -17,9 +17,10 @@ virtual report
 
 @runtime_bad_err_handle exists@
 expression ret;
+position p;
 @@
 (
-ret = \(pm_runtime_idle\|
+ret@p = \(pm_runtime_idle\|
 	pm_runtime_suspend\|
 	pm_runtime_autosuspend\|
 	pm_runtime_resume\|
@@ -47,12 +48,13 @@ IS_ERR_VALUE(ret)
 //  For context mode
 //----------------------------------------------------------
 
-@depends on runtime_bad_err_handle && context@
+@depends on context@
 identifier pm_runtime_api;
 expression ret;
+position runtime_bad_err_handle.p;
 @@
 (
-ret = pm_runtime_api(...);
+ret@p = pm_runtime_api(...);
 ...
 * IS_ERR_VALUE(ret)
 ...
@@ -62,12 +64,13 @@ ret = pm_runtime_api(...);
 //  For patch mode
 //----------------------------------------------------------
 
-@depends on runtime_bad_err_handle && patch@
+@depends on patch@
 identifier pm_runtime_api;
 expression ret;
+position runtime_bad_err_handle.p;
 @@
 (
-ret = pm_runtime_api(...);
+ret@p = pm_runtime_api(...);
 ...
 - IS_ERR_VALUE(ret)
 + ret < 0
@@ -78,13 +81,14 @@ ret = pm_runtime_api(...);
 //  For org and report mode
 //----------------------------------------------------------
 
-@r depends on runtime_bad_err_handle && (org || report) exists@
+@r depends on (org || report) exists@
 position p1, p2;
 identifier pm_runtime_api;
 expression ret;
+position runtime_bad_err_handle.p;
 @@
 (
-ret = pm_runtime_api@p1(...);
+ret@p = pm_runtime_api@p1(...);
 ...
 IS_ERR_VALUE@p2(ret)
 ...
diff --git a/scripts/coccinelle/misc/cond_no_effect.cocci b/scripts/coccinelle/misc/cond_no_effect.cocci
new file mode 100644
index 000000000000..8467dbd1c465
--- /dev/null
+++ b/scripts/coccinelle/misc/cond_no_effect.cocci
@@ -0,0 +1,64 @@
+///Find conditions where if and else branch are functionally
+// identical.
+//
+// There can be false positives in cases where the positional
+// information is used (as with lockdep) or where the identity
+// is a placeholder for not yet handled cases.
+// Unfortunately there also seems to be a tendency to use
+// the last if else/else as a "default behavior" - which some
+// might consider a legitimate coding pattern. From discussion
+// on kernelnewbies though it seems that this is not really an
+// accepted pattern and if at all it would need to be commented
+//
+// In the Linux kernel it does not seem to actually report
+// false positives except for those that were documented as
+// being intentional.
+// the two known cases are:
+//   arch/sh/kernel/traps_64.c:read_opcode()
+//        } else if ((pc & 1) == 0) {
+//              /* SHcompact */
+//              /* TODO : provide handling for this.  We don't really support
+//                 user-mode SHcompact yet, and for a kernel fault, this would
+//                 have to come from a module built for SHcompact.  */
+//              return -EFAULT;
+//      } else {
+//              /* misaligned */
+//              return -EFAULT;
+//      }
+//   fs/kernfs/file.c:kernfs_fop_open()
+//       * Both paths of the branch look the same.  They're supposed to
+//       * look that way and give @of->mutex different static lockdep keys.
+//       */
+//      if (has_mmap)
+//              mutex_init(&of->mutex);
+//      else
+//              mutex_init(&of->mutex);
+//
+// All other cases look like bugs or at least lack of documentation
+//
+// Confidence: Moderate
+// Copyright: (C) 2016 Nicholas Mc Guire, OSADL.  GPLv2.
+// Comments:
+// Options: --no-includes --include-headers
+
+virtual org
+virtual report
+
+@cond@
+statement S1;
+position p;
+@@
+
+* if@p (...) S1 else S1
+
+@script:python depends on org@
+p << cond.p;
+@@
+
+cocci.print_main("WARNING: possible condition with no effect (if == else)",p)
+
+@script:python depends on report@
+p << cond.p;
+@@
+
+coccilib.report.print_report(p[0],"WARNING: possible condition with no effect (if == else)")
diff --git a/scripts/const_structs.checkpatch b/scripts/const_structs.checkpatch
new file mode 100644
index 000000000000..ac5f1267151d
--- /dev/null
+++ b/scripts/const_structs.checkpatch
@@ -0,0 +1,64 @@
+acpi_dock_ops
+address_space_operations
+backlight_ops
+block_device_operations
+clk_ops
+comedi_lrange
+component_ops
+dentry_operations
+dev_pm_ops
+dma_map_ops
+driver_info
+drm_connector_funcs
+drm_encoder_funcs
+drm_encoder_helper_funcs
+ethtool_ops
+extent_io_ops
+file_lock_operations
+file_operations
+hv_ops
+ide_dma_ops
+ide_port_ops
+inode_operations
+intel_dvo_dev_ops
+irq_domain_ops
+item_operations
+iwl_cfg
+iwl_ops
+kgdb_arch
+kgdb_io
+kset_uevent_ops
+lock_manager_operations
+machine_desc
+microcode_ops
+mlxsw_reg_info
+mtrr_ops
+neigh_ops
+net_device_ops
+nlmsvc_binding
+nvkm_device_chip
+of_device_id
+pci_raw_ops
+pipe_buf_operations
+platform_hibernation_ops
+platform_suspend_ops
+proto_ops
+regmap_access_table
+rpc_pipe_ops
+rtc_class_ops
+sd_desc
+seq_operations
+sirfsoc_padmux
+snd_ac97_build_ops
+snd_soc_component_driver
+soc_pcmcia_socket_ops
+stacktrace_ops
+sysfs_ops
+tty_operations
+uart_ops
+usb_mon_operations
+v4l2_ctrl_ops
+v4l2_ioctl_ops
+vm_operations_struct
+wacom_features
+wd_ops
diff --git a/scripts/gen_initramfs_list.sh b/scripts/gen_initramfs_list.sh
index 17fa901418ae..0055b07b03b6 100755
--- a/scripts/gen_initramfs_list.sh
+++ b/scripts/gen_initramfs_list.sh
@@ -97,7 +97,10 @@ print_mtime() {
 }
 
 list_parse() {
-	[ ! -L "$1" ] && echo "$1 \\" || :
+	if [ -L "$1" ]; then
+		return
+	fi
+	echo "$1" | sed 's/:/\\:/g; s/$/ \\/'
 }
 
 # for each file print a line in following format
diff --git a/scripts/genksyms/lex.l b/scripts/genksyms/lex.l
index e583565f2011..5235aa507ba5 100644
--- a/scripts/genksyms/lex.l
+++ b/scripts/genksyms/lex.l
@@ -289,6 +289,23 @@ repeat:
 	}
       break;
 
+    case ST_TYPEOF_1:
+      if (token == IDENT)
+	{
+	  if (is_reserved_word(yytext, yyleng)
+	      || find_symbol(yytext, SYM_TYPEDEF, 1))
+	    {
+	      yyless(0);
+	      unput('(');
+	      lexstate = ST_NORMAL;
+	      token = TYPEOF_KEYW;
+	      break;
+	    }
+	  _APP("(", 1);
+	}
+	lexstate = ST_TYPEOF;
+	/* FALLTHRU */
+
     case ST_TYPEOF:
       switch (token)
 	{
@@ -313,24 +330,6 @@ repeat:
 	}
       break;
 
-    case ST_TYPEOF_1:
-      if (token == IDENT)
-	{
-	  if (is_reserved_word(yytext, yyleng)
-	      || find_symbol(yytext, SYM_TYPEDEF, 1))
-	    {
-	      yyless(0);
-	      unput('(');
-	      lexstate = ST_NORMAL;
-	      token = TYPEOF_KEYW;
-	      break;
-	    }
-	  _APP("(", 1);
-	}
-	APP;
-	lexstate = ST_TYPEOF;
-	goto repeat;
-
     case ST_BRACKET:
       APP;
       switch (token)
diff --git a/scripts/genksyms/lex.lex.c_shipped b/scripts/genksyms/lex.lex.c_shipped
index f82740a69b85..985c5541aae4 100644
--- a/scripts/genksyms/lex.lex.c_shipped
+++ b/scripts/genksyms/lex.lex.c_shipped
@@ -2098,6 +2098,23 @@ repeat:
 	}
       break;
 
+    case ST_TYPEOF_1:
+      if (token == IDENT)
+	{
+	  if (is_reserved_word(yytext, yyleng)
+	      || find_symbol(yytext, SYM_TYPEDEF, 1))
+	    {
+	      yyless(0);
+	      unput('(');
+	      lexstate = ST_NORMAL;
+	      token = TYPEOF_KEYW;
+	      break;
+	    }
+	  _APP("(", 1);
+	}
+	lexstate = ST_TYPEOF;
+	/* FALLTHRU */
+
     case ST_TYPEOF:
       switch (token)
 	{
@@ -2122,24 +2139,6 @@ repeat:
 	}
       break;
 
-    case ST_TYPEOF_1:
-      if (token == IDENT)
-	{
-	  if (is_reserved_word(yytext, yyleng)
-	      || find_symbol(yytext, SYM_TYPEDEF, 1))
-	    {
-	      yyless(0);
-	      unput('(');
-	      lexstate = ST_NORMAL;
-	      token = TYPEOF_KEYW;
-	      break;
-	    }
-	  _APP("(", 1);
-	}
-	APP;
-	lexstate = ST_TYPEOF;
-	goto repeat;
-
     case ST_BRACKET:
       APP;
       switch (token)
diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index 4f2e9049e8fa..93721f3c91bf 100755
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -212,6 +212,7 @@ my $anon_struct_union = 0;
 my $type_constant = '\%([-_\w]+)';
 my $type_func = '(\w+)\(\)';
 my $type_param = '\@(\w+)';
+my $type_fp_param = '\@(\w+)\(\)';  # Special RST handling for func ptr params
 my $type_struct = '\&((struct\s*)*[_\w]+)';
 my $type_struct_xml = '\\&amp;((struct\s*)*[_\w]+)';
 my $type_env = '(\$\w+)';
@@ -292,6 +293,7 @@ my @highlights_rst = (
                        # Note: need to escape () to avoid func matching later
                        [$type_member_func, "\\:c\\:type\\:`\$1\$2\\\\(\\\\) <\$1>`"],
                        [$type_member, "\\:c\\:type\\:`\$1\$2 <\$1>`"],
+		       [$type_fp_param, "**\$1\\\\(\\\\)**"],
                        [$type_func, "\\:c\\:func\\:`\$1()`"],
                        [$type_struct_full, "\\:c\\:type\\:`\$1 \$2 <\$2>`"],
                        [$type_enum_full, "\\:c\\:type\\:`\$1 \$2 <\$2>`"],
@@ -412,7 +414,7 @@ my $doc_com_body = '\s*\* ?';
 my $doc_decl = $doc_com . '(\w+)';
 # @params and a strictly limited set of supported section names
 my $doc_sect = $doc_com . 
-    '\s*(\@\w+|description|context|returns?|notes?|examples?)\s*:(.*)';
+    '\s*(\@[.\w]+|\@\.\.\.|description|context|returns?|notes?|examples?)\s*:(.*)';
 my $doc_content = $doc_com_body . '(.*)';
 my $doc_block = $doc_com . 'DOC:\s*(.*)?';
 my $doc_inline_start = '^\s*/\*\*\s*$';
@@ -1831,13 +1833,22 @@ sub output_function_rst(%) {
     my %args = %{$_[0]};
     my ($parameter, $section);
     my $oldprefix = $lineprefix;
-    my $start;
-
-    print ".. c:function:: ";
+    my $start = "";
+
+    if ($args{'typedef'}) {
+	print ".. c:type:: ". $args{'function'} . "\n\n";
+	print_lineno($declaration_start_line);
+	print "   **Typedef**: ";
+	$lineprefix = "";
+	output_highlight_rst($args{'purpose'});
+	$start = "\n\n**Syntax**\n\n  ``";
+    } else {
+	print ".. c:function:: ";
+    }
     if ($args{'functiontype'} ne "") {
-	$start = $args{'functiontype'} . " " . $args{'function'} . " (";
+	$start .= $args{'functiontype'} . " " . $args{'function'} . " (";
     } else {
-	$start = $args{'function'} . " (";
+	$start .= $args{'function'} . " (";
     }
     print $start;
 
@@ -1849,9 +1860,6 @@ sub output_function_rst(%) {
 	$count++;
 	$type = $args{'parametertypes'}{$parameter};
 
-	# RST doesn't like address_space tags at function prototypes
-	$type =~ s/__(user|kernel|iomem|percpu|pmem|rcu)\s*//;
-
 	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
 	    # pointer-to-function
 	    print $1 . $parameter . ") (" . $2;
@@ -1859,11 +1867,15 @@ sub output_function_rst(%) {
 	    print $type . " " . $parameter;
 	}
     }
-    print ")\n\n";
-    print_lineno($declaration_start_line);
-    $lineprefix = "   ";
-    output_highlight_rst($args{'purpose'});
-    print "\n";
+    if ($args{'typedef'}) {
+	print ");``\n\n";
+    } else {
+	print ")\n\n";
+	print_lineno($declaration_start_line);
+	$lineprefix = "   ";
+	output_highlight_rst($args{'purpose'});
+	print "\n";
+    }
 
     print "**Parameters**\n\n";
     $lineprefix = "  ";
@@ -2003,7 +2015,7 @@ sub output_struct_rst(%) {
 	($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
 	$type = $args{'parametertypes'}{$parameter};
         print_lineno($parameterdesc_start_lines{$parameter_name});
-	print "``$type $parameter``\n";
+	print "``" . $parameter . "``\n";
 	output_highlight_rst($args{'parameterdescs'}{$parameter_name});
 	print "\n";
     }
@@ -2193,7 +2205,9 @@ sub dump_typedef($$) {
     $x =~ s@/\*.*?\*/@@gos;	# strip comments.
 
     # Parse function prototypes
-    if ($x =~ /typedef\s+(\w+)\s*\(\*\s*(\w\S+)\s*\)\s*\((.*)\);/) {
+    if ($x =~ /typedef\s+(\w+)\s*\(\*\s*(\w\S+)\s*\)\s*\((.*)\);/ ||
+	$x =~ /typedef\s+(\w+)\s*(\w\S+)\s*\s*\((.*)\);/) {
+
 	# Function typedefs
 	$return_type = $1;
 	$declaration_name = $2;
@@ -2204,6 +2218,7 @@ sub dump_typedef($$) {
 	output_declaration($declaration_name,
 			   'function',
 			   {'function' => $declaration_name,
+			    'typedef' => 1,
 			    'module' => $modulename,
 			    'functiontype' => $return_type,
 			    'parameterlist' => \@parameterlist,
@@ -2338,6 +2353,7 @@ sub push_parameter($$$) {
 
 	if ($type eq "" && $param =~ /\.\.\.$/)
 	{
+	    $param = "...";
 	    if (!defined $parameterdescs{$param} || $parameterdescs{$param} eq "") {
 		$parameterdescs{$param} = "variable arguments";
 	    }
diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
index 4f727eb5ec43..f742c65108b9 100755
--- a/scripts/link-vmlinux.sh
+++ b/scripts/link-vmlinux.sh
@@ -37,12 +37,40 @@ info()
 	fi
 }
 
+# Thin archive build here makes a final archive with
+# symbol table and indexes from vmlinux objects, which can be
+# used as input to linker.
+#
+# Traditional incremental style of link does not require this step
+#
+# built-in.o output file
+#
+archive_builtin()
+{
+	if [ -n "${CONFIG_THIN_ARCHIVES}" ]; then
+		info AR built-in.o
+		rm -f built-in.o;
+		${AR} rcsT${KBUILD_ARFLAGS} built-in.o			\
+					${KBUILD_VMLINUX_INIT}		\
+					${KBUILD_VMLINUX_MAIN}
+	fi
+}
+
 # Link of vmlinux.o used for section mismatch analysis
 # ${1} output file
 modpost_link()
 {
-	${LD} ${LDFLAGS} -r -o ${1} ${KBUILD_VMLINUX_INIT}                   \
-		--start-group ${KBUILD_VMLINUX_MAIN} --end-group
+	local objects
+
+	if [ -n "${CONFIG_THIN_ARCHIVES}" ]; then
+		objects="--whole-archive built-in.o"
+	else
+		objects="${KBUILD_VMLINUX_INIT}				\
+			--start-group					\
+			${KBUILD_VMLINUX_MAIN}				\
+			--end-group"
+	fi
+	${LD} ${LDFLAGS} -r -o ${1} ${objects}
 }
 
 # Link of vmlinux
@@ -51,18 +79,36 @@ modpost_link()
 vmlinux_link()
 {
 	local lds="${objtree}/${KBUILD_LDS}"
+	local objects
 
 	if [ "${SRCARCH}" != "um" ]; then
-		${LD} ${LDFLAGS} ${LDFLAGS_vmlinux} -o ${2}                  \
-			-T ${lds} ${KBUILD_VMLINUX_INIT}                     \
-			--start-group ${KBUILD_VMLINUX_MAIN} --end-group ${1}
+		if [ -n "${CONFIG_THIN_ARCHIVES}" ]; then
+			objects="--whole-archive built-in.o ${1}"
+		else
+			objects="${KBUILD_VMLINUX_INIT}			\
+				--start-group				\
+				${KBUILD_VMLINUX_MAIN}			\
+				--end-group				\
+				${1}"
+		fi
+
+		${LD} ${LDFLAGS} ${LDFLAGS_vmlinux} -o ${2}		\
+			-T ${lds} ${objects}
 	else
-		${CC} ${CFLAGS_vmlinux} -o ${2}                              \
-			-Wl,-T,${lds} ${KBUILD_VMLINUX_INIT}                 \
-			-Wl,--start-group                                    \
-				 ${KBUILD_VMLINUX_MAIN}                      \
-			-Wl,--end-group                                      \
-			-lutil -lrt -lpthread ${1}
+		if [ -n "${CONFIG_THIN_ARCHIVES}" ]; then
+			objects="-Wl,--whole-archive built-in.o ${1}"
+		else
+			objects="${KBUILD_VMLINUX_INIT}			\
+				-Wl,--start-group			\
+				${KBUILD_VMLINUX_MAIN}			\
+				-Wl,--end-group				\
+				${1}"
+		fi
+
+		${CC} ${CFLAGS_vmlinux} -o ${2}				\
+			-Wl,-T,${lds}					\
+			${objects}					\
+			-lutil -lrt -lpthread
 		rm -f linux
 	fi
 }
@@ -119,6 +165,7 @@ cleanup()
 	rm -f .tmp_kallsyms*
 	rm -f .tmp_version
 	rm -f .tmp_vmlinux*
+	rm -f built-in.o
 	rm -f System.map
 	rm -f vmlinux
 	rm -f vmlinux.o
@@ -162,6 +209,8 @@ case "${KCONFIG_CONFIG}" in
 	. "./${KCONFIG_CONFIG}"
 esac
 
+archive_builtin
+
 #link vmlinux.o
 info LD vmlinux.o
 modpost_link vmlinux.o
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 48958d3cec9e..bd8349759095 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -888,7 +888,7 @@ static void check_section(const char *modname, struct elf_info *elf,
 
 #define DATA_SECTIONS ".data", ".data.rel"
 #define TEXT_SECTIONS ".text", ".text.unlikely", ".sched.text", \
-		".kprobes.text"
+		".kprobes.text", ".cpuidle.text"
 #define OTHER_TEXT_SECTIONS ".ref.text", ".head.text", ".spinlock.text", \
 		".fixup", ".entry.text", ".exception.text", ".text.*", \
 		".coldtext"
diff --git a/scripts/recordmcount.c b/scripts/recordmcount.c
index a68f03133df9..5423a58d1b06 100644
--- a/scripts/recordmcount.c
+++ b/scripts/recordmcount.c
@@ -365,6 +365,7 @@ is_mcounted_section_name(char const *const txtname)
 		strcmp(".irqentry.text", txtname) == 0 ||
 		strcmp(".softirqentry.text", txtname) == 0 ||
 		strcmp(".kprobes.text", txtname) == 0 ||
+		strcmp(".cpuidle.text", txtname) == 0 ||
 		strcmp(".text.unlikely", txtname) == 0;
 }
 
diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl
index 2d48011bc362..faac4b10d8ea 100755
--- a/scripts/recordmcount.pl
+++ b/scripts/recordmcount.pl
@@ -136,6 +136,7 @@ my %text_sections = (
      ".irqentry.text" => 1,
      ".softirqentry.text" => 1,
      ".kprobes.text" => 1,
+     ".cpuidle.text" => 1,
      ".text.unlikely" => 1,
 );
 
diff --git a/scripts/spelling.txt b/scripts/spelling.txt
index fa79c6d2a5b8..163c720d3f2b 100644
--- a/scripts/spelling.txt
+++ b/scripts/spelling.txt
@@ -629,7 +629,6 @@ mispelt||misspelt
 miximum||maximum
 mmnemonic||mnemonic
 mnay||many
-modeled||modelled
 modulues||modules
 monochorome||monochrome
 monochromo||monochrome
diff --git a/scripts/tags.sh b/scripts/tags.sh
index b3775a9604ea..a2ff3388e5ea 100755
--- a/scripts/tags.sh
+++ b/scripts/tags.sh
@@ -263,7 +263,8 @@ exuberant()
 	-I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL,ACPI_EXPORT_SYMBOL   \
 	-I DEFINE_TRACE,EXPORT_TRACEPOINT_SYMBOL,EXPORT_TRACEPOINT_SYMBOL_GPL \
 	-I static,const						\
-	--extra=+f --c-kinds=+px --langmap=c:+.h "${regex[@]}"
+	--extra=+fq --c-kinds=+px --fields=+iaS --langmap=c:+.h \
+	"${regex[@]}"
 
 	setup_regex exuberant kconfig
 	all_kconfigs | xargs $1 -a                              \
diff --git a/scripts/tracing/ftrace-bisect.sh b/scripts/tracing/ftrace-bisect.sh
new file mode 100755
index 000000000000..9ff8ac5fc53c
--- /dev/null
+++ b/scripts/tracing/ftrace-bisect.sh
@@ -0,0 +1,115 @@
+#!/bin/bash
+#
+# Here's how to use this:
+#
+# This script is used to help find functions that are being traced by function
+# tracer or function graph tracing that causes the machine to reboot, hang, or
+# crash. Here's the steps to take.
+#
+# First, determine if function tracing is working with a single function:
+#
+#   (note, if this is a problem with function_graph tracing, then simply
+#    replace "function" with "function_graph" in the following steps).
+#
+#  # cd /sys/kernel/debug/tracing
+#  # echo schedule > set_ftrace_filter
+#  # echo function > current_tracer
+#
+# If this works, then we know that something is being traced that shouldn't be.
+#
+#  # echo nop > current_tracer
+#
+#  # cat available_filter_functions > ~/full-file
+#  # ftrace-bisect ~/full-file ~/test-file ~/non-test-file
+#  # cat ~/test-file > set_ftrace_filter
+#
+# *** Note *** this will take several minutes. Setting multiple functions is
+# an O(n^2) operation, and we are dealing with thousands of functions. So go
+# have  coffee, talk with your coworkers, read facebook. And eventually, this
+# operation will end.
+#
+#  # echo function > current_tracer
+#
+# If it crashes, we know that ~/test-file has a bad function.
+#
+#   Reboot back to test kernel.
+#
+#     # cd /sys/kernel/debug/tracing
+#     # mv ~/test-file ~/full-file
+#
+# If it didn't crash.
+#
+#     # echo nop > current_tracer
+#     # mv ~/non-test-file ~/full-file
+#
+# Get rid of the other test file from previous run (or save them off somewhere).
+#  # rm -f ~/test-file ~/non-test-file
+#
+# And start again:
+#
+#  # ftrace-bisect ~/full-file ~/test-file ~/non-test-file
+#
+# The good thing is, because this cuts the number of functions in ~/test-file
+# by half, the cat of it into set_ftrace_filter takes half as long each
+# iteration, so don't talk so much at the water cooler the second time.
+#
+# Eventually, if you did this correctly, you will get down to the problem
+# function, and all we need to do is to notrace it.
+#
+# The way to figure out if the problem function is bad, just do:
+#
+#  # echo <problem-function> > set_ftrace_notrace
+#  # echo > set_ftrace_filter
+#  # echo function > current_tracer
+#
+# And if it doesn't crash, we are done.
+#
+# If it does crash, do this again (there's more than one problem function)
+# but you need to echo the problem function(s) into set_ftrace_notrace before
+# enabling function tracing in the above steps. Or if you can compile the
+# kernel, annotate the problem functions with "notrace" and start again.
+#
+
+
+if [ $# -ne 3 ]; then
+  echo 'usage: ftrace-bisect full-file test-file  non-test-file'
+  exit
+fi
+
+full=$1
+test=$2
+nontest=$3
+
+x=`cat $full | wc -l`
+if [ $x -eq 1 ]; then
+	echo "There's only one function left, must be the bad one"
+	cat $full
+	exit 0
+fi
+
+let x=$x/2
+let y=$x+1
+
+if [ ! -f $full ]; then
+	echo "$full does not exist"
+	exit 1
+fi
+
+if [ -f $test ]; then
+	echo -n "$test exists, delete it? [y/N]"
+	read a
+	if [ "$a" != "y" -a "$a" != "Y" ]; then
+		exit 1
+	fi
+fi
+
+if [ -f $nontest ]; then
+	echo -n "$nontest exists, delete it? [y/N]"
+	read a
+	if [ "$a" != "y" -a "$a" != "Y" ]; then
+		exit 1
+	fi
+fi
+
+sed -ne "1,${x}p" $full > $test
+sed -ne "$y,\$p" $full > $nontest
diff --git a/scripts/ver_linux b/scripts/ver_linux
index 0d8bd29b1bd6..430b201f3e25 100755
--- a/scripts/ver_linux
+++ b/scripts/ver_linux
@@ -1,193 +1,89 @@
-#!/bin/sh
+#!/bin/awk -f
 # Before running this script please ensure that your PATH is
 # typical as you use for compilation/installation. I use
 # /bin /sbin /usr/bin /usr/sbin /usr/local/bin, but it may
 # differ on your system.
-#
-echo 'If some fields are empty or look unusual you may have an old version.'
-echo 'Compare to the current minimal requirements in Documentation/Changes.'
-echo ' '
 
-uname -a
-echo ' '
-
-gcc -dumpversion 2>&1 |
-awk '/[0-9]+([.]?[0-9]+)+/ && !/not found$/{
-	match($0, /[0-9]+([.]?[0-9]+)+/)
-	printf("GNU C\t\t\t%s\n",
-	substr($0,RSTART,RLENGTH))
-}'
-
-make --version 2>&1 |
-awk '/GNU Make/{
-	match($0, /[0-9]+([.]?[0-9]+)+/)
-	printf("GNU Make\t\t%s\n",
-	substr($0,RSTART,RLENGTH))
-}'
-
-ld -v 2>&1 |
-awk '/[0-9]+([.]?[0-9]+)+/ && !/not found$/{
-	match($0, /[0-9]+([.]?[0-9]+)+/)
-	printf("Binutils\t\t%s\n",
-	substr($0,RSTART,RLENGTH))
-}'
-
-mount --version 2>&1 |
-awk '/[0-9]+([.]?[0-9]+)+/ && !/not found$/{
-	match($0, /[0-9]+([.]?[0-9]+)+/)
-	$0 = substr($0,RSTART,RLENGTH)
-	printf("Util-linux\t\t%s\nMount\t\t\t%s\n",$0,$0)
-}'
-
-depmod -V  2>&1 |
-awk '/[0-9]+([.]?[0-9]+)+/ && !/not found$/{
-	match($0, /[0-9]+([.]?[0-9]+)+/)
-	printf("Module-init-tools\t%s\n",
-	substr($0,RSTART,RLENGTH))
-}'
-
-tune2fs 2>&1 |
-awk '/^tune2fs/{
-	match($0, /[0-9]+([.]?[0-9]+)+/)
-	printf("E2fsprogs\t\t%s\n",
-	substr($0,RSTART,RLENGTH))
-}'
-
-fsck.jfs -V 2>&1 |
-awk '/version/{
-	match($0, /[0-9]+([.]?[0-9]+)+/)
-	printf("Jfsutils\t\t%s\n",
-	substr($0,RSTART,RLENGTH))
-}'
-
-reiserfsck -V 2>&1 |
-awk '/^reiserfsck/{
-	match($0, /[0-9]+([.]?[0-9]+)+/)
-	printf("Reiserfsprogs\t\t%s\n",
-	substr($0,RSTART,RLENGTH))
-}'
-
-fsck.reiser4 -V 2>&1 | grep ^fsck.reiser4 | awk \
-'NR==1{print "reiser4progs          ", $2}'
-
-xfs_db -V 2>&1 |
-awk '/version/{
-	match($0, /[0-9]+([.]?[0-9]+)+/)
-	printf("Xfsprogs\t\t%s\n",
-	substr($0,RSTART,RLENGTH))
-}'
-
-pccardctl -V 2>&1 |
-awk '/pcmciautils/{
-	match($0, /[0-9]+([.]?[0-9]+)+/)
-	printf("Pcmciautils\t\t%s\n",
-	substr($0,RSTART,RLENGTH))
-}'
-
-cardmgr -V 2>&1| grep version | awk \
-'NR==1{print "pcmcia-cs             ", $3}'
-
-quota -V 2>&1 |
-awk '/version/{
-	match($0, /[0-9]+([.]?[0-9]+)+/)
-	printf("Quota-tools\t\t%s\n",
-	substr($0,RSTART,RLENGTH))
-}'
-
-pppd --version 2>&1 |
-awk '/version/{
-	match($0, /[0-9]+([.]?[0-9]+)+/)
-	printf("PPP\t\t\t%s\n",
-	substr($0,RSTART,RLENGTH))
-}'
-
-isdnctrl 2>&1 | grep version | awk \
-'NR==1{print "isdn4k-utils          ", $NF}'
-
-showmount --version 2>&1 | grep nfs-utils | awk \
-'NR==1{print "nfs-utils             ", $NF}'
-
-test -r /proc/self/maps &&
-sed '
-	/.*libc-\(.*\)\.so$/!d
-	s//Linux C Library\t\t\1/
-	q
-' /proc/self/maps
-
-ldd --version 2>&1 |
-awk '/^ldd/{
-	match($0, /[0-9]+([.]?[0-9]+)+/)
-	printf("Dynamic linker (ldd)\t%s\n",
-	substr($0,RSTART,RLENGTH))
-}'
-
-libcpp=`ldconfig -p 2>/dev/null |
-	awk '/(libg|stdc)[+]+\.so/ {
-	print $NF
-	exit
+BEGIN {
+	usage = "If some fields are empty or look unusual you may have an old version.\n"
+	usage = usage "Compare to the current minimal requirements in Documentation/Changes.\n"
+	print usage
+
+	system("uname -a")
+	printf("\n")
+
+	printversion("GNU C", version("gcc -dumpversion 2>&1"))
+	printversion("GNU Make", version("make --version 2>&1"))
+	printversion("Binutils", version("ld -v 2>&1"))
+	printversion("Util-linux", version("mount --version 2>&1"))
+	printversion("Mount", version("mount --version 2>&1"))
+	printversion("Module-init-tools", version("depmod -V  2>&1"))
+	printversion("E2fsprogs", version("tune2fs 2>&1"))
+	printversion("Jfsutils", version("fsck.jfs -V 2>&1"))
+	printversion("Reiserfsprogs", version("reiserfsck -V 2>&1"))
+	printversion("Reiser4fsprogs", version("fsck.reiser4 -V 2>&1"))
+	printversion("Xfsprogs", version("xfs_db -V 2>&1"))
+	printversion("Pcmciautils", version("pccardctl -V 2>&1"))
+	printversion("Pcmcia-cs", version("cardmgr -V 2>&1"))
+	printversion("Quota-tools", version("quota -V 2>&1"))
+	printversion("PPP", version("pppd --version 2>&1"))
+	printversion("Isdn4k-utils", version("isdnctrl 2>&1"))
+	printversion("Nfs-utils", version("showmount --version 2>&1"))
+
+	if (system("test -r /proc/self/maps") == 0) {
+		while (getline <"/proc/self/maps" > 0) {
+			n = split($0, procmaps, "/")
+			if (/libc.*so$/ && match(procmaps[n], /[0-9]+([.]?[0-9]+)+/)) {
+				ver = substr(procmaps[n], RSTART, RLENGTH)
+				printversion("Linux C Library", ver)
+				break
+			}
+		}
 	}
-'`
-test -r "$libcpp" &&
-ls -l $libcpp |
-sed '
-	s!.*so\.!!
-	s!^!Linux C++ Library\t!
-'
-ps --version 2>&1 |
-awk '/version/{
-	match($0, /[0-9]+([.]?[0-9]+)+/)
-	printf("Procps\t\t\t%s\n",
-	substr($0,RSTART,RLENGTH))
-}'
-
-ifconfig --version 2>&1 |
-awk '/tools/{
-	match($0, /[0-9]+([.]?[0-9]+)+/)
-	printf("Net-tools\t\t%s\n",
-	substr($0,RSTART,RLENGTH))
-}'
-
-loadkeys -V 2>&1 |
-awk '/[0-9]+([.]?[0-9]+)+/ && !/not found$/{
-	match($0, /[0-9]+([.]?[0-9]+)+/)
-	$0 = substr($0,RSTART,RLENGTH)
-	printf("Kbd\t\t\t%s\nConsole-tools\t\t%s\n",$0,$0)
-}'
 
-oprofiled --version 2>&1 | awk \
-'(NR==1 && ($2 == "oprofile")) {print "oprofile              ", $3}'
+	printversion("Dynamic linker (ldd)", version("ldd --version 2>&1"))
 
-expr --v 2>&1 |
-awk '/^expr/{
-	match($0, /[0-9]+([.]?[0-9]+)+/)
-	printf("Sh-utils\t\t%s\n",
-	substr($0,RSTART,RLENGTH))
-}'
-
-udevadm --version 2>&1 |
-awk '/[0-9]+([.]?[0-9]+)+/ && !/not found$/{
-	match($0, /[0-9]+([.]?[0-9]+)+/)
-	printf("Udev\t\t\t%s\n",
-	substr($0,RSTART,RLENGTH))
-}'
+	while ("ldconfig -p 2>/dev/null" | getline > 0) {
+		if (/(libg|stdc)[+]+\.so/) {
+			libcpp = $NF
+			break
+		}
+	}
+	if (system("test -r " libcpp) == 0)
+		printversion("Linux C++ Library", version("readlink " libcpp))
+
+	printversion("Procps", version("ps --version 2>&1"))
+	printversion("Net-tools", version("ifconfig --version 2>&1"))
+	printversion("Kbd", version("loadkeys -V 2>&1"))
+	printversion("Console-tools", version("loadkeys -V 2>&1"))
+	printversion("Oprofile", version("oprofiled --version 2>&1"))
+	printversion("Sh-utils", version("expr --v 2>&1"))
+	printversion("Udev", version("udevadm --version 2>&1"))
+	printversion("Wireless-tools", version("iwconfig --version 2>&1"))
+
+	if (system("test -r /proc/modules") == 0) {
+		while ("sort /proc/modules" | getline > 0) {
+			mods = mods sep $1
+			sep = " "
+		}
+		printversion("Modules Loaded", mods)
+	}
+}
 
-iwconfig --version 2>&1 |
-awk '/version/{
-	match($0, /[0-9]+([.]?[0-9]+)+/)
-	printf("Wireless-tools\t\t%s\n",
-	substr($0,RSTART,RLENGTH))
-}'
+function version(cmd,    ver) {
+	while (cmd | getline > 0) {
+		if (!/ver_linux/ && match($0, /[0-9]+([.]?[0-9]+)+/)) {
+			ver = substr($0, RSTART, RLENGTH)
+			break
+		}
+	}
+	close(cmd)
+	return ver
+}
 
-test -e /proc/modules &&
-sort /proc/modules |
-sed '
-	s/ .*//
-	H
-${
-	g
-	s/^\n/Modules Loaded\t\t/
-	y/\n/ /
-	q
+function printversion(name, value,  ofmt) {
+	if (value != "") {
+		ofmt = "%-20s\t%s\n"
+		printf(ofmt, name, value)
+	}
 }
-	d
-'