11 files changed, 490 insertions, 266 deletions

diff --git a/scripts/Makefile.headersinst b/scripts/Makefile.headersinst
index 53dae3eb3d1f..612dc13ddd85 100644
--- a/scripts/Makefile.headersinst
+++ b/scripts/Makefile.headersinst
@@ -1,194 +1,98 @@
 # ==========================================================================
 # Installing headers
 #
-# header-y files will be installed verbatim
-# unifdef-y are the files where unifdef will be run before installing files
-# objhdr-y are generated files that will be installed verbatim
+# header-y  - list files to be installed. They are preprocessed
+#             to remove __KERNEL__ section of the file
+# unifdef-y - Same as header-y. Obsolete
+# objhdr-y  - Same as header-y but for generated files
 #
 # ==========================================================================
 
-UNIFDEF := scripts/unifdef -U__KERNEL__
-
-# Eliminate the contents of (and inclusions of) compiler.h
-HDRSED  := sed  -e "s/ inline / __inline__ /g" \
-                -e "s/[[:space:]]__user[[:space:]]\{1,\}/ /g" \
-                -e "s/(__user[[:space:]]\{1,\}/ (/g" \
-                -e "s/[[:space:]]__force[[:space:]]\{1,\}/ /g" \
-                -e "s/(__force[[:space:]]\{1,\}/ (/g" \
-                -e "s/[[:space:]]__iomem[[:space:]]\{1,\}/ /g" \
-                -e "s/(__iomem[[:space:]]\{1,\}/ (/g" \
-                -e "s/[[:space:]]__attribute_const__[[:space:]]\{1,\}/\ /g" \
-                -e "s/[[:space:]]__attribute_const__$$//" \
-                -e "/^\#include <linux\/compiler.h>/d"
-
+# called may set destination dir (when installing to asm/)
 _dst := $(if $(dst),$(dst),$(obj))
 
-ifeq (,$(patsubst include/asm/%,,$(obj)/))
-# For producing the generated stuff in include/asm for biarch builds, include
-# both sets of Kbuild files; we'll generate anything which is mentioned in
-# _either_ arch, and recurse into subdirectories which are mentioned in either
-# arch. Since some directories may exist in one but not the other, we must
-# use $(wildcard...). 
-GENASM := 1
-archasm    := $(subst include/asm,asm-$(ARCH),$(obj))
-altarchasm := $(subst include/asm,asm-$(ALTARCH),$(obj))
-KBUILDFILES := $(wildcard $(srctree)/include/$(archasm)/Kbuild $(srctree)/include/$(altarchasm)/Kbuild)
-else
-KBUILDFILES := $(srctree)/$(obj)/Kbuild
-endif
+kbuild-file := $(srctree)/$(obj)/Kbuild
+include $(kbuild-file)
 
-include $(KBUILDFILES)
+include scripts/Kbuild.include
 
-include scripts/Kbuild.include 
+install       := $(INSTALL_HDR_PATH)/$(_dst)
 
-# If this is include/asm-$(ARCH) and there's no $(ALTARCH), then
-# override $(_dst) so that we install to include/asm directly.
-# Unless $(BIASMDIR) is set, in which case we're probably doing
-# a 'headers_install_all' build and we should keep the -$(ARCH)
-# in the directory name.
-ifeq ($(obj)$(ALTARCH),include/asm-$(ARCH)$(BIASMDIR))
-     _dst := include/asm
-endif
+header-y      := $(sort $(header-y) $(unifdef-y))
+subdirs       := $(patsubst %/,%,$(filter %/, $(header-y)))
+header-y      := $(filter-out %/, $(header-y))
 
-header-y        := $(sort $(header-y))
-unifdef-y       := $(sort $(unifdef-y))
-subdir-y        := $(patsubst %/,%,$(filter %/, $(header-y)))
-header-y        := $(filter-out %/, $(header-y))
-header-y        := $(filter-out $(unifdef-y),$(header-y))
+# files used to track state of install/check
+install-file  := $(install)/.install
+check-file    := $(install)/.check
 
-# stamp files for header checks
-check-y         := $(patsubst %,.check.%,$(header-y) $(unifdef-y) $(objhdr-y))
+# all headers files for this dir
+all-files     := $(header-y) $(objhdr-y)
+input-files   := $(addprefix $(srctree)/$(obj)/,$(header-y)) \
+                 $(addprefix $(objtree)/$(obj)/,$(objhdr-y))
+output-files  := $(addprefix $(install)/, $(all-files))
 
 # Work out what needs to be removed
-oldheaders      := $(patsubst $(INSTALL_HDR_PATH)/$(_dst)/%,%,$(wildcard $(INSTALL_HDR_PATH)/$(_dst)/*.h))
-unwanted        := $(filter-out $(header-y) $(unifdef-y) $(objhdr-y),$(oldheaders))
+oldheaders    := $(patsubst $(install)/%,%,$(wildcard $(install)/*.h))
+unwanted      := $(filter-out $(all-files),$(oldheaders))
 
-oldcheckstamps  := $(patsubst $(INSTALL_HDR_PATH)/$(_dst)/%,%,$(wildcard $(INSTALL_HDR_PATH)/$(_dst)/.check.*.h))
-unwanted        += $(filter-out $(check-y),$(oldcheckstamps))
+# Prefix unwanted with full paths to $(INSTALL_HDR_PATH)
+unwanted-file := $(addprefix $(install)/, $(unwanted))
 
-# Prefix them all with full paths to $(INSTALL_HDR_PATH)
-header-y        := $(patsubst %,$(INSTALL_HDR_PATH)/$(_dst)/%,$(header-y))
-unifdef-y       := $(patsubst %,$(INSTALL_HDR_PATH)/$(_dst)/%,$(unifdef-y))
-objhdr-y        := $(patsubst %,$(INSTALL_HDR_PATH)/$(_dst)/%,$(objhdr-y))
-check-y         := $(patsubst %,$(INSTALL_HDR_PATH)/$(_dst)/%,$(check-y))
+printdir = $(patsubst $(INSTALL_HDR_PATH)/%/,%,$(dir $@))
 
+quiet_cmd_install = INSTALL $(printdir) ($(words $(all-files))\
+                            file$(if $(word 2, $(all-files)),s))
+      cmd_install = \
+        $(PERL) $< $(srctree)/$(obj) $(install) $(SRCARCH) $(header-y); \
+        $(PERL) $< $(objtree)/$(obj) $(install) $(SRCARCH) $(objhdr-y); \
+        touch $@
 
-ifdef ALTARCH
-ifeq ($(obj),include/asm-$(ARCH))
-altarch-y       := altarch-dir
-endif
-endif
+quiet_cmd_remove = REMOVE  $(unwanted)
+      cmd_remove = rm -f $(unwanted-file)
 
-# Make the definitions visible for recursive make invocations
-export ALTARCH
-export ARCHDEF
-export ALTARCHDEF
-
-quiet_cmd_o_hdr_install   = INSTALL $(patsubst $(INSTALL_HDR_PATH)/%,%,$@)
-      cmd_o_hdr_install   = cp $(patsubst $(INSTALL_HDR_PATH)/$(_dst)/%,$(objtree)/$(obj)/%,$@) \
-                            $(INSTALL_HDR_PATH)/$(_dst)
-
-quiet_cmd_headers_install = INSTALL $(patsubst $(INSTALL_HDR_PATH)/%,%,$@)
-      cmd_headers_install = $(HDRSED) $(patsubst $(INSTALL_HDR_PATH)/$(_dst)/%,$(srctree)/$(obj)/%,$@)  \
-                            > $@
-
-quiet_cmd_unifdef         = UNIFDEF $(patsubst $(INSTALL_HDR_PATH)/%,%,$@)
-      cmd_unifdef         = $(UNIFDEF) $(patsubst $(INSTALL_HDR_PATH)/$(_dst)/%,$(srctree)/$(obj)/%,$@) \
-                                   | $(HDRSED) > $@ || :
-
-quiet_cmd_check           = CHECK   $(patsubst $(INSTALL_HDR_PATH)/$(_dst)/.check.%,$(_dst)/%,$@)
-      cmd_check           = $(CONFIG_SHELL) $(srctree)/scripts/hdrcheck.sh \
-                              $(INSTALL_HDR_PATH)/include $(subst /.check.,/,$@) $@
-
-quiet_cmd_remove          = REMOVE  $(_dst)/$@
-      cmd_remove          = rm -f $(INSTALL_HDR_PATH)/$(_dst)/$@
-
-quiet_cmd_mkdir           = MKDIR   $(patsubst $(INSTALL_HDR_PATH)/%,%,$@)
-      cmd_mkdir           = mkdir -p $@
-
-quiet_cmd_gen             = GEN     $(patsubst $(INSTALL_HDR_PATH)/%,%,$@)
-      cmd_gen             = \
-FNAME=$(patsubst $(INSTALL_HDR_PATH)/$(_dst)/%,%,$@);                   \
-STUBDEF=__ASM_STUB_`echo $$FNAME | tr a-z.- A-Z__`;                     \
-(echo "/* File autogenerated by 'make headers_install' */" ;            \
-echo "\#ifndef $$STUBDEF" ;                                             \
-echo "\#define $$STUBDEF" ;                                             \
-echo "\# if $(ARCHDEF)" ;                                               \
-if [ -r $(subst /$(_dst)/,/include/$(archasm)/,$@) ]; then              \
-        echo "\#  include <$(archasm)/$$FNAME>" ;                       \
-else                                                                    \
-        echo "\#  error $(archasm)/$$FNAME does not exist in"           \
-                        "the $(ARCH) architecture" ;                    \
-fi ;                                                                    \
-echo "\# elif $(ALTARCHDEF)" ;                                          \
-if [ -r $(subst /$(_dst)/,/include/$(altarchasm)/,$@) ]; then           \
-        echo "\#  include <$(altarchasm)/$$FNAME>" ;                    \
-else                                                                    \
-        echo "\#  error $(altarchasm)/$$FNAME does not exist in"        \
-                        "the $(ALTARCH) architecture" ;                 \
-fi ;                                                                    \
-echo "\# else" ;                                                        \
-echo "\#  warning This machine appears to be"                           \
-                 "neither $(ARCH) nor $(ALTARCH)." ;                    \
-echo "\# endif" ;                                                       \
-echo "\#endif /* $$STUBDEF */" ;                                        \
-) > $@
-
-.PHONY: __headersinst __headerscheck
-
-ifdef HDRCHECK
-__headerscheck: $(subdir-y) $(check-y)
-        @true
-
-$(check-y) : $(INSTALL_HDR_PATH)/$(_dst)/.check.%.h : $(INSTALL_HDR_PATH)/$(_dst)/%.h 
-        $(call cmd,check)
-
-# Other dependencies for $(check-y)
-include /dev/null $(wildcard $(check-y))
-
-# ... but leave $(check-y) as .PHONY for now until those deps are actually correct.
-.PHONY: $(check-y)
+quiet_cmd_check = CHECK   $(printdir) ($(words $(all-files)) files)
+      cmd_check = $(PERL) $< $(INSTALL_HDR_PATH)/include $(SRCARCH) \
+                  $(addprefix $(install)/, $(all-files));           \
+                  touch $@
 
-else
-# Rules for installing headers
-__headersinst: $(subdir-y) $(header-y) $(unifdef-y) $(altarch-y) $(objhdr-y)
-        @true
+PHONY += __headersinst __headerscheck
 
-$(objhdr-y) $(subdir-y) $(header-y) $(unifdef-y): | $(INSTALL_HDR_PATH)/$(_dst) $(unwanted)
-
-$(INSTALL_HDR_PATH)/$(_dst):
-        $(call cmd,mkdir)
-
-.PHONY: $(unwanted)
-$(unwanted):
-        $(call cmd,remove)
+ifndef HDRCHECK
+# Rules for installing headers
+__headersinst: $(subdirs) $(install-file)
+        @:
 
-ifdef GENASM
-$(objhdr-y) $(header-y) $(unifdef-y): $(KBUILDFILES)
-        $(call cmd,gen)
+targets += $(install-file)
+$(install-file): scripts/headers_install.pl $(input-files) FORCE
+        $(if $(unwanted),$(call cmd,remove),)
+        $(if $(wildcard $(dir $@)),,$(shell mkdir -p $(dir $@)))
+        $(call if_changed,install)
 
 else
-$(objhdr-y) :           $(INSTALL_HDR_PATH)/$(_dst)/%.h: $(objtree)/$(obj)/%.h $(KBUILDFILES)
-        $(call cmd,o_hdr_install)
+__headerscheck: $(subdirs) $(check-file)
+        @:
 
-$(header-y) :           $(INSTALL_HDR_PATH)/$(_dst)/%.h: $(srctree)/$(obj)/%.h $(KBUILDFILES)
-        $(call cmd,headers_install)
+targets += $(check-file)
+$(check-file): scripts/headers_check.pl $(output-files) FORCE
+        $(call if_changed,check)
 
-$(unifdef-y) :          $(INSTALL_HDR_PATH)/$(_dst)/%.h: $(srctree)/$(obj)/%.h $(KBUILDFILES)
-        $(call cmd,unifdef)
-endif
 endif
 
-hdrinst := -rR -f $(srctree)/scripts/Makefile.headersinst obj
+# Recursion
+hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj
+.PHONY: $(subdirs)
+$(subdirs):
+        $(Q)$(MAKE) $(hdr-inst)=$(obj)/$@ dst=$(_dst)/$@
 
-.PHONY: altarch-dir
-# All the files in the normal arch dir must be created first, since we test
-# for their existence.
-altarch-dir: $(subdir-y) $(header-y) $(unifdef-y) $(objhdr-y)
-        $(Q)$(MAKE) $(hdrinst)=include/asm-$(ALTARCH) dst=include/asm-$(ALTARCH)
-        $(Q)$(MAKE) $(hdrinst)=include/asm dst=include/asm$(BIASMDIR)
+targets := $(wildcard $(sort $(targets)))
+cmd_files := $(wildcard \
+             $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
 
-# Recursion
-.PHONY: $(subdir-y)
-$(subdir-y):
-        $(Q)$(MAKE) $(hdrinst)=$(obj)/$@ dst=$(_dst)/$@ rel=../$(rel)
+ifneq ($(cmd_files),)
+        include $(cmd_files)
+endif
+
+.PHONY: $(PHONY)
+PHONY += FORCE
+FORCE: ;
diff --git a/scripts/diffconfig b/scripts/diffconfig
new file mode 100755
index 000000000000..b91f3e34d44d
--- /dev/null
+++ b/scripts/diffconfig
@@ -0,0 +1,129 @@
+#!/usr/bin/python
+#
+# diffconfig - a tool to compare .config files.
+#
+# originally written in 2006 by Matt Mackall
+#  (at least, this was in his bloatwatch source code)
+# last worked on 2008 by Tim Bird
+#
+
+import sys, os
+
+def usage():
+    print """Usage: diffconfig [-h] [-m] [<config1> <config2>]
+
+Diffconfig is a simple utility for comparing two .config files.
+Using standard diff to compare .config files often includes extraneous and
+distracting information.  This utility produces sorted output with only the
+changes in configuration values between the two files.
+
+Added and removed items are shown with a leading plus or minus, respectively.
+Changed items show the old and new values on a single line.
+
+If -m is specified, then output will be in "merge" style, which has the
+changed and new values in kernel config option format.
+
+If no config files are specified, .config and .config.old are used.
+
+Example usage:
+ $ diffconfig .config config-with-some-changes
+-EXT2_FS_XATTR  n
+-EXT2_FS_XIP  n
+ CRAMFS  n -> y
+ EXT2_FS  y -> n
+ LOG_BUF_SHIFT  14 -> 16
+ PRINTK_TIME  n -> y
+"""
+    sys.exit(0)
+
+# returns a dictionary of name/value pairs for config items in the file
+def readconfig(config_file):
+    d = {}
+    for line in config_file:
+        line = line[:-1]
+        if line[:7] == "CONFIG_":
+            name, val = line[7:].split("=", 1)
+            d[name] = val
+        if line[-11:] == " is not set":
+            d[line[9:-11]] = "n"
+    return d
+
+def print_config(op, config, value, new_value):
+    global merge_style
+
+    if merge_style:
+        if new_value:
+            if new_value=="n":
+                print "# CONFIG_%s is not set" % config
+            else:
+                print "CONFIG_%s=%s" % (config, new_value)
+    else:
+        if op=="-":
+            print "-%s %s" % (config, value)
+        elif op=="+":
+            print "+%s %s" % (config, new_value)
+        else:
+            print " %s %s -> %s" % (config, value, new_value)
+
+def main():
+    global merge_style
+
+    # parse command line args
+    if ("-h" in sys.argv or "--help" in sys.argv):
+        usage()
+
+    merge_style = 0
+    if "-m" in sys.argv:
+        merge_style = 1
+        sys.argv.remove("-m")
+
+    argc = len(sys.argv)
+    if not (argc==1 or argc == 3):
+        print "Error: incorrect number of arguments or unrecognized option"
+        usage()
+
+    if argc == 1:
+        # if no filenames given, assume .config and .config.old
+        build_dir=""
+        if os.environ.has_key("KBUILD_OUTPUT"):
+            build_dir = os.environ["KBUILD_OUTPUT"]+"/"
+
+        configa_filename = build_dir + ".config.old"
+        configb_filename = build_dir + ".config"
+    else:
+        configa_filename = sys.argv[1]
+        configb_filename = sys.argv[2]
+
+    a = readconfig(file(configa_filename))
+    b = readconfig(file(configb_filename))
+
+    # print items in a but not b (accumulate, sort and print)
+    old = []
+    for config in a:
+        if config not in b:
+            old.append(config)
+    old.sort()
+    for config in old:
+        print_config("-", config, a[config], None)
+        del a[config]
+
+    # print items that changed (accumulate, sort, and print)
+    changed = []
+    for config in a:
+        if a[config] != b[config]:
+            changed.append(config)
+        else:
+            del b[config]
+    changed.sort()
+    for config in changed:
+        print_config("->", config, a[config], b[config])
+        del b[config]
+
+    # now print items in b but not in a
+    # (items from b that were in a were removed above)
+    new = b.keys()
+    new.sort()
+    for config in new:
+        print_config("+", config, None, b[config])
+
+main()
diff --git a/scripts/hdrcheck.sh b/scripts/hdrcheck.sh
deleted file mode 100755
index 31598584f871..000000000000
--- a/scripts/hdrcheck.sh
+++ /dev/null
@@ -1,10 +0,0 @@
-#!/bin/sh
-
-for FILE in `grep '^[ \t]*#[ \t]*include[ \t]*<' $2 | cut -f2 -d\< | cut -f1 -d\> | egrep ^linux\|^asm` ; do
-    if [ ! -r $1/$FILE ]; then
-        echo $2 requires $FILE, which does not exist in exported headers
-        exit 1
-    fi
-done
-# FIXME: List dependencies into $3
-touch $3
diff --git a/scripts/headers.sh b/scripts/headers.sh
new file mode 100755
index 000000000000..d33426f866db
--- /dev/null
+++ b/scripts/headers.sh
@@ -0,0 +1,41 @@
+#!/bin/sh
+# Run headers_$1 command for all suitable architectures
+
+# Stop on error
+set -e
+
+do_command()
+{
+        if [ -f ${srctree}/arch/$2/include/asm/Kbuild ]; then
+                make ARCH=$2 KBUILD_HEADERS=$1 headers_$1
+        elif [ -f ${srctree}/include/asm-$2/Kbuild ]; then
+                make ARCH=$2 KBUILD_HEADERS=$1 headers_$1
+        else
+                printf "Ignoring arch: %s\n" ${arch}
+        fi
+}
+
+# Do not try this architecture
+drop="generic um ppc sparc64 cris"
+
+archs=$(ls ${srctree}/arch)
+
+for arch in ${archs}; do
+        case ${arch} in
+        um)        # no userspace export
+                ;;
+        ppc)       # headers exported by powerpc
+                ;;
+        sparc64)   # headers exported by sparc
+                ;;
+        cris)      # headers export are known broken
+                ;;
+        *)
+                if [ -d ${srctree}/arch/${arch} ]; then
+                        do_command $1 ${arch}
+                fi
+                ;;
+        esac
+done
+
+
diff --git a/scripts/headers_check.pl b/scripts/headers_check.pl
new file mode 100644
index 000000000000..15d53a6b1a1f
--- /dev/null
+++ b/scripts/headers_check.pl
@@ -0,0 +1,56 @@
+#!/usr/bin/perl
+#
+# headers_check.pl execute a number of trivial consistency checks
+#
+# Usage: headers_check.pl dir [files...]
+# dir:   dir to look for included files
+# arch:  architecture
+# files: list of files to check
+#
+# The script reads the supplied files line by line and:
+#
+# 1) for each include statement it checks if the
+#    included file actually exists.
+#    Only include files located in asm* and linux* are checked.
+#    The rest are assumed to be system include files.
+#
+# 2) TODO: check for leaked CONFIG_ symbols
+
+use strict;
+use warnings;
+
+my ($dir, $arch, @files) = @ARGV;
+
+my $ret = 0;
+my $line;
+my $lineno = 0;
+my $filename;
+
+foreach my $file (@files) {
+        $filename = $file;
+        open(my $fh, '<', "$filename") or die "$filename: $!\n";
+        $lineno = 0;
+        while ($line = <$fh>) {
+                $lineno++;
+                check_include();
+        }
+        close $fh;
+}
+exit $ret;
+
+sub check_include
+{
+        if ($line =~ m/^\s*#\s*include\s+<((asm|linux).*)>/) {
+                my $inc = $1;
+                my $found;
+                $found = stat($dir . "/" . $inc);
+                if (!$found) {
+                        $inc =~ s#asm/#asm-$arch/#;
+                        $found = stat($dir . "/" . $inc);
+                }
+                if (!$found) {
+                        printf STDERR "$filename:$lineno: included file '$inc' is not exported\n";
+                        $ret = 1;
+                }
+        }
+}
diff --git a/scripts/headers_install.pl b/scripts/headers_install.pl
new file mode 100644
index 000000000000..68591cd08731
--- /dev/null
+++ b/scripts/headers_install.pl
@@ -0,0 +1,45 @@
+#!/usr/bin/perl
+#
+# headers_install prepare the listed header files for use in
+# user space and copy the files to their destination.
+#
+# Usage: headers_install.pl readdir installdir arch [files...]
+# readdir:    dir to open files
+# installdir: dir to install the files
+# arch:       current architecture
+#             arch is used to force a reinstallation when the arch
+#             changes because kbuild then detect a command line change.
+# files:      list of files to check
+#
+# Step in preparation for users space:
+# 1) Drop all use of compiler.h definitions
+# 2) Drop include of compiler.h
+# 3) Drop all sections defined out by __KERNEL__ (using unifdef)
+
+use strict;
+use warnings;
+
+my ($readdir, $installdir, $arch, @files) = @ARGV;
+
+my $unifdef = "scripts/unifdef -U__KERNEL__";
+
+foreach my $file (@files) {
+        my $tmpfile = "$installdir/$file.tmp";
+        open(my $infile, '<', "$readdir/$file")
+                or die "$readdir/$file: $!\n";
+        open(my $outfile, '>', "$tmpfile") or die "$tmpfile: $!\n";
+        while (my $line = <$infile>) {
+                $line =~ s/([\s(])__user\s/$1/g;
+                $line =~ s/([\s(])__force\s/$1/g;
+                $line =~ s/([\s(])__iomem\s/$1/g;
+                $line =~ s/\s__attribute_const__\s/ /g;
+                $line =~ s/\s__attribute_const__$//g;
+                $line =~ s/^#include <linux\/compiler.h>//;
+                printf $outfile "%s", $line;
+        }
+        close $outfile;
+        close $infile;
+        system $unifdef . " $tmpfile > $installdir/$file";
+        unlink $tmpfile;
+}
+exit 0;
diff --git a/scripts/kconfig/conf.c b/scripts/kconfig/conf.c
index fda63136ae68..9fba838c7069 100644
--- a/scripts/kconfig/conf.c
+++ b/scripts/kconfig/conf.c
@@ -76,7 +76,6 @@ static void check_stdin(void)
 static int conf_askvalue(struct symbol *sym, const char *def)
 {
         enum symbol_type type = sym_get_type(sym);
-        tristate val;
 
         if (!sym_has_value(sym))
                 printf(_("(NEW) "));
@@ -92,15 +91,6 @@ static int conf_askvalue(struct symbol *sym, const char *def)
         }
 
         switch (input_mode) {
-        case set_no:
-        case set_mod:
-        case set_yes:
-        case set_random:
-                if (sym_has_value(sym)) {
-                        printf("%s\n", def);
-                        return 0;
-                }
-                break;
         case ask_new:
         case ask_silent:
                 if (sym_has_value(sym)) {
@@ -112,9 +102,6 @@ static int conf_askvalue(struct symbol *sym, const char *def)
                 fflush(stdout);
                 fgets(line, 128, stdin);
                 return 1;
-        case set_default:
-                printf("%s\n", def);
-                return 1;
         default:
                 break;
         }
@@ -128,52 +115,6 @@ static int conf_askvalue(struct symbol *sym, const char *def)
         default:
                 ;
         }
-        switch (input_mode) {
-        case set_yes:
-                if (sym_tristate_within_range(sym, yes)) {
-                        line[0] = 'y';
-                        line[1] = '\n';
-                        line[2] = 0;
-                        break;
-                }
-        case set_mod:
-                if (type == S_TRISTATE) {
-                        if (sym_tristate_within_range(sym, mod)) {
-                                line[0] = 'm';
-                                line[1] = '\n';
-                                line[2] = 0;
-                                break;
-                        }
-                } else {
-                        if (sym_tristate_within_range(sym, yes)) {
-                                line[0] = 'y';
-                                line[1] = '\n';
-                                line[2] = 0;
-                                break;
-                        }
-                }
-        case set_no:
-                if (sym_tristate_within_range(sym, no)) {
-                        line[0] = 'n';
-                        line[1] = '\n';
-                        line[2] = 0;
-                        break;
-                }
-        case set_random:
-                do {
-                        val = (tristate)(rand() % 3);
-                } while (!sym_tristate_within_range(sym, val));
-                switch (val) {
-                case no: line[0] = 'n'; break;
-                case mod: line[0] = 'm'; break;
-                case yes: line[0] = 'y'; break;
-                }
-                line[1] = '\n';
-                line[2] = 0;
-                break;
-        default:
-                break;
-        }
         printf("%s", line);
         return 1;
 }
@@ -374,15 +315,7 @@ static int conf_choice(struct menu *menu)
                         else
                                 continue;
                         break;
-                case set_random:
-                        if (is_new)
-                                def = (rand() % cnt) + 1;
-                case set_default:
-                case set_yes:
-                case set_mod:
-                case set_no:
-                        cnt = def;
-                        printf("%d\n", cnt);
+                default:
                         break;
                 }
 
@@ -494,6 +427,43 @@ static void check_conf(struct menu *menu)
                 check_conf(child);
 }
 
+static void conf_do_update(void)
+{
+        /* Update until a loop caused no more changes */
+        do {
+                conf_cnt = 0;
+                check_conf(&rootmenu);
+        } while (conf_cnt);
+}
+
+static int conf_silent_update(void)
+{
+        const char *name;
+
+        if (conf_get_changed()) {
+                name = getenv("KCONFIG_NOSILENTUPDATE");
+                if (name && *name) {
+                        fprintf(stderr,
+                        _("\n*** Kernel configuration requires explicit update.\n\n"));
+                        return 1;
+                }
+                conf_do_update();
+        }
+        return 0;
+}
+
+static int conf_update(void)
+{
+        rootEntry = &rootmenu;
+        conf(&rootmenu);
+        if (input_mode == ask_all) {
+                input_mode = ask_silent;
+                valid_stdin = 1;
+        }
+        conf_do_update();
+        return 0;
+}
+
 int main(int ac, char **av)
 {
         int opt;
@@ -599,36 +569,43 @@ int main(int ac, char **av)
         default:
                 break;
         }
+        switch (input_mode) {
+        case set_no:
+                conf_set_all_new_symbols(def_no);
+                break;
+        case set_yes:
+                conf_set_all_new_symbols(def_yes);
+                break;
+        case set_mod:
+                conf_set_all_new_symbols(def_mod);
+                break;
+        case set_random:
+                conf_set_all_new_symbols(def_random);
+                break;
+        case set_default:
+                conf_set_all_new_symbols(def_default);
+                break;
+        case ask_silent:
+        case ask_new:
+                if (conf_silent_update())
+                        exit(1);
+                break;
+        case ask_all:
+                if (conf_update())
+                        exit(1);
+                break;
+        }
 
-        if (input_mode != ask_silent) {
-                rootEntry = &rootmenu;
-                conf(&rootmenu);
-                if (input_mode == ask_all) {
-                        input_mode = ask_silent;
-                        valid_stdin = 1;
-                }
-        } else if (conf_get_changed()) {
-                name = getenv("KCONFIG_NOSILENTUPDATE");
-                if (name && *name) {
-                        fprintf(stderr, _("\n*** Kernel configuration requires explicit update.\n\n"));
-                        return 1;
-                }
-        } else
-                goto skip_check;
-
-        do {
-                conf_cnt = 0;
-                check_conf(&rootmenu);
-        } while (conf_cnt);
-        if (conf_write(NULL)) {
+        if (conf_get_changed() && conf_write(NULL)) {
                 fprintf(stderr, _("\n*** Error during writing of the kernel configuration.\n\n"));
-                return 1;
+                exit(1);
         }
-skip_check:
+        /* ask_silent is used during the build so we shall update autoconf.
+         * All other commands are only used to generate a config.
+         */
         if (input_mode == ask_silent && conf_write_autoconf()) {
                 fprintf(stderr, _("\n*** Error during writing of the kernel configuration.\n\n"));
                 return 1;
         }
-
         return 0;
 }
diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index ee5fe943d58d..07597611cc50 100644
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -812,3 +812,73 @@ void conf_set_changed_callback(void (*fn)(void))
 {
         conf_changed_callback = fn;
 }
+
+
+void conf_set_all_new_symbols(enum conf_def_mode mode)
+{
+        struct symbol *sym, *csym;
+        struct property *prop;
+        struct expr *e;
+        int i, cnt, def;
+
+        for_all_symbols(i, sym) {
+                if (sym_has_value(sym))
+                        continue;
+                switch (sym_get_type(sym)) {
+                case S_BOOLEAN:
+                case S_TRISTATE:
+                        switch (mode) {
+                        case def_yes:
+                                sym->def[S_DEF_USER].tri = yes;
+                                break;
+                        case def_mod:
+                                sym->def[S_DEF_USER].tri = mod;
+                                break;
+                        case def_no:
+                                sym->def[S_DEF_USER].tri = no;
+                                break;
+                        case def_random:
+                                sym->def[S_DEF_USER].tri = (tristate)(rand() % 3);
+                                break;
+                        default:
+                                continue;
+                        }
+                        if (!sym_is_choice(sym) || mode != def_random)
+                                sym->flags |= SYMBOL_DEF_USER;
+                        break;
+                default:
+                        break;
+                }
+
+        }
+
+        if (modules_sym)
+                sym_calc_value(modules_sym);
+
+        if (mode != def_random)
+                return;
+
+        for_all_symbols(i, csym) {
+                if (sym_has_value(csym) || !sym_is_choice(csym))
+                        continue;
+
+                sym_calc_value(csym);
+                prop = sym_get_choice_prop(csym);
+                def = -1;
+                while (1) {
+                        cnt = 0;
+                        expr_list_for_each_sym(prop->expr, e, sym) {
+                                if (sym->visible == no)
+                                        continue;
+                                if (def == cnt++) {
+                                        csym->def[S_DEF_USER].val = sym;
+                                        break;
+                                }
+                        }
+                        if (def >= 0 || cnt < 2)
+                                break;
+                        def = (rand() % cnt) + 1;
+                }
+                csym->flags |= SYMBOL_DEF_USER;
+        }
+}
diff --git a/scripts/kconfig/lkc.h b/scripts/kconfig/lkc.h
index 96521cb087ec..4a9af6f7886b 100644
--- a/scripts/kconfig/lkc.h
+++ b/scripts/kconfig/lkc.h
@@ -42,6 +42,14 @@ extern "C" {
 #define TF_PARAM        0x0002
 #define TF_OPTION       0x0004
 
+enum conf_def_mode {
+        def_default,
+        def_yes,
+        def_mod,
+        def_no,
+        def_random
+};
+
 #define T_OPT_MODULES           1
 #define T_OPT_DEFCONFIG_LIST    2
 #define T_OPT_ENV               3
@@ -69,6 +77,7 @@ const char *conf_get_configname(void);
 char *conf_get_default_confname(void);
 void sym_set_change_count(int count);
 void sym_add_change_count(int count);
+void conf_set_all_new_symbols(enum conf_def_mode mode);
 
 /* kconfig_load.c */
 void kconfig_load(void);
diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index 88e3934a8b8c..d8f77e26081c 100755
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -1643,6 +1643,7 @@ sub dump_function($$) {
     $prototype =~ s/^__always_inline +//;
     $prototype =~ s/^noinline +//;
     $prototype =~ s/__devinit +//;
+    $prototype =~ s/__init +//;
     $prototype =~ s/^#define\s+//; #ak added
     $prototype =~ s/__attribute__\s*\(\([a-z,]*\)\)//;
 
diff --git a/scripts/setlocalversion b/scripts/setlocalversion
index 1c1bdaf7348a..83b75126c9f7 100755
--- a/scripts/setlocalversion
+++ b/scripts/setlocalversion
@@ -12,7 +12,9 @@ cd "${1:-.}" || usage
 if head=`git rev-parse --verify HEAD 2>/dev/null`; then
         # Do we have an untagged version?
         if git name-rev --tags HEAD | grep -E '^HEAD[[:space:]]+(.*~[0-9]*|undefined)$' > /dev/null; then
-                git describe | awk -F- '{printf("-%05d-%s", $(NF-1),$(NF))}'
+                if tag=`git describe 2>/dev/null`; then
+                        echo $tag | awk -F- '{printf("-%05d-%s", $(NF-1),$(NF))}'
+                fi
         fi
 
         # Are there uncommitted changes?