35 files changed, 1118 insertions, 339 deletions

diff --git a/scripts/Makefile.headersinst b/scripts/Makefile.headersinst
index a57f5bd5a13d..d3bae5e7b601 100644
--- a/scripts/Makefile.headersinst
+++ b/scripts/Makefile.headersinst
@@ -4,12 +4,16 @@
 # header-y  - list files to be installed. They are preprocessed
 #             to remove __KERNEL__ section of the file
 # objhdr-y  - Same as header-y but for generated files
+# genhdr-y  - Same as objhdr-y but in a generated/ directory
 #
 # ==========================================================================
 
 # called may set destination dir (when installing to asm/)
 _dst := $(if $(dst),$(dst),$(obj))
 
+# generated header directory
+gen := $(if $(gen),$(gen),$(subst include/,include/generated/,$(obj)))
+
 kbuild-file := $(srctree)/$(obj)/Kbuild
 include $(kbuild-file)
 
@@ -33,9 +37,10 @@ wrapper-files := $(filter $(header-y), $(generic-y))
 
 # all headers files for this dir
 header-y      := $(filter-out $(generic-y), $(header-y))
-all-files     := $(header-y) $(objhdr-y) $(wrapper-files)
+all-files     := $(header-y) $(objhdr-y) $(genhdr-y) $(wrapper-files)
 input-files   := $(addprefix $(srctree)/$(obj)/,$(header-y)) \
-                 $(addprefix $(objtree)/$(obj)/,$(objhdr-y))
+                 $(addprefix $(objtree)/$(obj)/,$(objhdr-y)) \
+                 $(addprefix $(objtree)/$(gen)/,$(genhdr-y))
 output-files  := $(addprefix $(install)/, $(all-files))
 
 # Work out what needs to be removed
@@ -52,6 +57,7 @@ quiet_cmd_install = INSTALL $(printdir) ($(words $(all-files))\
       cmd_install = \
         $(PERL) $< $(srctree)/$(obj) $(install) $(SRCARCH) $(header-y); \
         $(PERL) $< $(objtree)/$(obj) $(install) $(SRCARCH) $(objhdr-y); \
+        $(PERL) $< $(objtree)/$(gen) $(install) $(SRCARCH) $(genhdr-y); \
         for F in $(wrapper-files); do                                   \
                 echo "\#include <asm-generic/$$F>" > $(install)/$$F;    \
         done;                                                           \
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 5d986d9adf1b..00c368c6e996 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -93,9 +93,9 @@ obj-dirs	:= $(addprefix $(obj)/,$(obj-dirs))
 # already
 # $(modname_flags) #defines KBUILD_MODNAME as the name of the module it will 
 # end up in (or would, if it gets compiled in)
-# Note: It's possible that one object gets potentially linked into more
-#       than one module. In that case KBUILD_MODNAME will be set to foo_bar,
-#       where foo and bar are the name of the modules.
+# Note: Files that end up in two or more modules are compiled without the
+#       KBUILD_MODNAME definition. The reason is that any made-up name would
+#       differ in different configs.
 name-fix = $(subst $(comma),_,$(subst -,_,$1))
 basename_flags = -D"KBUILD_BASENAME=KBUILD_STR($(call name-fix,$(basetarget)))"
 modname_flags  = $(if $(filter 1,$(words $(modname))),\
@@ -264,7 +264,7 @@ $(obj)/%.dtb.S: $(obj)/%.dtb
         $(call cmd,dt_S_dtb)
 
 quiet_cmd_dtc = DTC     $@
-cmd_dtc = $(objtree)/scripts/dtc/dtc -O dtb -o $@ -b 0 $(DTC_FLAGS) $<
+cmd_dtc = $(objtree)/scripts/dtc/dtc -O dtb -o $@ -b 0 $(DTC_FLAGS) -d $(depfile) $<
 
 # Bzip2
 # ---------------------------------------------------------------------------
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 8fda3b3f7be8..e3bfcbe8a520 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -227,7 +227,7 @@ our $Inline	= qr{inline|__always_inline|noinline};
 our $Member     = qr{->$Ident|\.$Ident|\[[^]]*\]};
 our $Lval       = qr{$Ident(?:$Member)*};
 
-our $Constant   = qr{(?:[0-9]+|0x[0-9a-fA-F]+)[UL]*};
+our $Constant   = qr{(?i:(?:[0-9]+|0x[0-9a-f]+)[ul]*)};
 our $Assignment = qr{(?:\*\=|/=|%=|\+=|-=|<<=|>>=|&=|\^=|\|=|=)};
 our $Compare    = qr{<=|>=|==|!=|<|>};
 our $Operators  = qr{
@@ -315,7 +315,7 @@ sub build_types {
         $NonptrType     = qr{
                         (?:$Modifier\s+|const\s+)*
                         (?:
-                                (?:typeof|__typeof__)\s*\(\s*\**\s*$Ident\s*\)|
+                                (?:typeof|__typeof__)\s*\([^\)]*\)|
                                 (?:$typeTypedefs\b)|
                                 (?:${all}\b)
                         )
@@ -334,6 +334,7 @@ our $match_balanced_parentheses = qr/(\((?:[^\(\)]+|(-1))*\))/;
 
 our $Typecast   = qr{\s*(\(\s*$NonptrType\s*\)){0,1}\s*};
 our $LvalOrFunc = qr{($Lval)\s*($match_balanced_parentheses{0,1})\s*};
+our $FuncArg = qr{$Typecast{0,1}($LvalOrFunc|$Constant)};
 
 sub deparenthesize {
         my ($string) = @_;
@@ -676,6 +677,10 @@ sub ctx_statement_block {
                         if ($off >= $len) {
                                 last;
                         }
+                        if ($level == 0 && substr($blk, $off) =~ /^.\s*#\s*define/) {
+                                $level++;
+                                $type = '#';
+                        }
                 }
                 $p = $c;
                 $c = substr($blk, $off, 1);
@@ -738,6 +743,13 @@ sub ctx_statement_block {
                                 last;
                         }
                 }
+                # Preprocessor commands end at the newline unless escaped.
+                if ($type eq '#' && $c eq "\n" && $p ne "\\") {
+                        $level--;
+                        $type = '';
+                        $off++;
+                        last;
+                }
                 $off++;
         }
         # We are truly at the end, so shuffle to the next line.
@@ -1020,7 +1032,7 @@ sub annotate_values {
                 } elsif ($cur =~ /^(\(\s*$Type\s*)\)/ && $av_pending eq '_') {
                         print "CAST($1)\n" if ($dbg_values > 1);
                         push(@av_paren_type, $type);
-                        $type = 'C';
+                        $type = 'c';
 
                 } elsif ($cur =~ /^($Type)\s*(?:$Ident|,|\)|\(|\s*$)/) {
                         print "DECLARE($1)\n" if ($dbg_values > 1);
@@ -1212,7 +1224,9 @@ sub possible {
                         case|
                         else|
                         asm|__asm__|
-                        do
+                        do|
+                        \#|
+                        \#\#|
                 )(?:\s|$)|
                 ^(?:typedef|struct|enum)\b
             )}x;
@@ -1359,6 +1373,7 @@ sub process {
         my %suppress_ifbraces;
         my %suppress_whiletrailers;
         my %suppress_export;
+        my $suppress_statement = 0;
 
         # Pre-scan the patch sanitizing the lines.
         # Pre-scan the patch looking for any __setup documentation.
@@ -1468,6 +1483,7 @@ sub process {
                         %suppress_ifbraces = ();
                         %suppress_whiletrailers = ();
                         %suppress_export = ();
+                        $suppress_statement = 0;
                         next;
 
 # track the line number as we move through the hunk, note that
@@ -1504,9 +1520,11 @@ sub process {
                 if ($line =~ /^diff --git.*?(\S+)$/) {
                         $realfile = $1;
                         $realfile =~ s@^([^/]*)/@@;
+                        $in_commit_log = 0;
                 } elsif ($line =~ /^\+\+\+\s+(\S+)/) {
                         $realfile = $1;
                         $realfile =~ s@^([^/]*)/@@;
+                        $in_commit_log = 0;
 
                         $p1_prefix = $1;
                         if (!$file && $tree && $p1_prefix ne '' &&
@@ -1546,7 +1564,8 @@ sub process {
                 }
 
 # Check signature styles
-                if ($line =~ /^(\s*)($signature_tags)(\s*)(.*)/) {
+                if (!$in_header_lines &&
+                    $line =~ /^(\s*)($signature_tags)(\s*)(.*)/) {
                         my $space_before = $1;
                         my $sign_off = $2;
                         my $space_after = $3;
@@ -1623,7 +1642,7 @@ sub process {
 # Check if it's the start of a commit log
 # (not a header line and we haven't seen the patch filename)
                 if ($in_header_lines && $realfile =~ /^$/ &&
-                    $rawline !~ /^(commit\b|from\b|\w+:).+$/i) {
+                    $rawline !~ /^(commit\b|from\b|[\w-]+:).+$/i) {
                         $in_header_lines = 0;
                         $in_commit_log = 1;
                 }
@@ -1655,19 +1674,26 @@ sub process {
 # Only applies when adding the entry originally, after that we do not have
 # sufficient context to determine whether it is indeed long enough.
                 if ($realfile =~ /Kconfig/ &&
-                    $line =~ /\+\s*(?:---)?help(?:---)?$/) {
+                    $line =~ /.\s*config\s+/) {
                         my $length = 0;
                         my $cnt = $realcnt;
                         my $ln = $linenr + 1;
                         my $f;
+                        my $is_start = 0;
                         my $is_end = 0;
-                        while ($cnt > 0 && defined $lines[$ln - 1]) {
+                        for (; $cnt > 0 && defined $lines[$ln - 1]; $ln++) {
                                 $f = $lines[$ln - 1];
                                 $cnt-- if ($lines[$ln - 1] !~ /^-/);
                                 $is_end = $lines[$ln - 1] =~ /^\+/;
-                                $ln++;
 
                                 next if ($f =~ /^-/);
+
+                                if ($lines[$ln - 1] =~ /.\s*(?:bool|tristate)\s*\"/) {
+                                        $is_start = 1;
+                                } elsif ($lines[$ln - 1] =~ /.\s*(?:---)?help(?:---)?$/) {
+                                        $length = -1;
+                                }
+
                                 $f =~ s/^.//;
                                 $f =~ s/#.*//;
                                 $f =~ s/^\s+//;
@@ -1679,8 +1705,8 @@ sub process {
                                 $length++;
                         }
                         WARN("CONFIG_DESCRIPTION",
-                             "please write a paragraph that describes the config symbol fully\n" . $herecurr) if ($is_end && $length < 4);
-                        #print "is_end<$is_end> length<$length>\n";
+                             "please write a paragraph that describes the config symbol fully\n" . $herecurr) if ($is_start && $is_end && $length < 4);
+                        #print "is_start<$is_start> is_end<$is_end> length<$length>\n";
                 }
 
                 if (($realfile =~ /Makefile.*/ || $realfile =~ /Kbuild.*/) &&
@@ -1792,12 +1818,24 @@ sub process {
 # Check for potential 'bare' types
                 my ($stat, $cond, $line_nr_next, $remain_next, $off_next,
                     $realline_next);
-                if ($realcnt && $line =~ /.\s*\S/) {
+#print "LINE<$line>\n";
+                if ($linenr >= $suppress_statement &&
+                    $realcnt && $line =~ /.\s*\S/) {
                         ($stat, $cond, $line_nr_next, $remain_next, $off_next) =
                                 ctx_statement_block($linenr, $realcnt, 0);
                         $stat =~ s/\n./\n /g;
                         $cond =~ s/\n./\n /g;
 
+#print "linenr<$linenr> <$stat>\n";
+                        # If this statement has no statement boundaries within
+                        # it there is no point in retrying a statement scan
+                        # until we hit end of it.
+                        my $frag = $stat; $frag =~ s/;+\s*$//;
+                        if ($frag !~ /(?:{|;)/) {
+#print "skip<$line_nr_next>\n";
+                                $suppress_statement = $line_nr_next;
+                        }
+
                         # Find the real next line.
                         $realline_next = $line_nr_next;
                         if (defined $realline_next &&
@@ -1923,6 +1961,9 @@ sub process {
 
 # Check relative indent for conditionals and blocks.
                 if ($line =~ /\b(?:(?:if|while|for)\s*\(|do\b)/ && $line !~ /^.\s*#/ && $line !~ /\}\s*while\s*/) {
+                        ($stat, $cond, $line_nr_next, $remain_next, $off_next) =
+                                ctx_statement_block($linenr, $realcnt, 0)
+                                        if (!defined $stat);
                         my ($s, $c) = ($stat, $cond);
 
                         substr($s, 0, length($c), '');
@@ -2090,7 +2131,7 @@ sub process {
                         #   XXX(foo);
                         #   EXPORT_SYMBOL(something_foo);
                         my $name = $1;
-                        if ($stat =~ /^.([A-Z_]+)\s*\(\s*($Ident)/ &&
+                        if ($stat =~ /^(?:.\s*}\s*\n)?.([A-Z_]+)\s*\(\s*($Ident)/ &&
                             $name =~ /^${Ident}_$2/) {
 #print "FOO C name<$name>\n";
                                 $suppress_export{$realline_next} = 1;
@@ -2168,8 +2209,9 @@ sub process {
 
 # * goes on variable not on type
                 # (char*[ const])
-                if ($line =~ m{\($NonptrType(\s*(?:$Modifier\b\s*|\*\s*)+)\)}) {
-                        my ($from, $to) = ($1, $1);
+                while ($line =~ m{(\($NonptrType(\s*(?:$Modifier\b\s*|\*\s*)+)\))}g) {
+                        #print "AA<$1>\n";
+                        my ($from, $to) = ($2, $2);
 
                         # Should start with a space.
                         $to =~ s/^(\S)/ $1/;
@@ -2184,8 +2226,10 @@ sub process {
                                 ERROR("POINTER_LOCATION",
                                       "\"(foo$from)\" should be \"(foo$to)\"\n" .  $herecurr);
                         }
-                } elsif ($line =~ m{\b$NonptrType(\s*(?:$Modifier\b\s*|\*\s*)+)($Ident)}) {
-                        my ($from, $to, $ident) = ($1, $1, $2);
+                }
+                while ($line =~ m{(\b$NonptrType(\s*(?:$Modifier\b\s*|\*\s*)+)($Ident))}g) {
+                        #print "BB<$1>\n";
+                        my ($from, $to, $ident) = ($2, $2, $3);
 
                         # Should start with a space.
                         $to =~ s/^(\S)/ $1/;
@@ -2568,7 +2612,7 @@ sub process {
                         # Flatten any parentheses
                         $value =~ s/\(/ \(/g;
                         $value =~ s/\)/\) /g;
-                        while ($value =~ s/\[[^\{\}]*\]/1/ ||
+                        while ($value =~ s/\[[^\[\]]*\]/1/ ||
                                $value !~ /(?:$Ident|-?$Constant)\s*
                                              $Compare\s*
                                              (?:$Ident|-?$Constant)/x &&
@@ -2593,28 +2637,6 @@ sub process {
                         }
                 }
 
-# typecasts on min/max could be min_t/max_t
-                if ($line =~ /^\+(?:.*?)\b(min|max)\s*\($Typecast{0,1}($LvalOrFunc)\s*,\s*$Typecast{0,1}($LvalOrFunc)\s*\)/) {
-                        if (defined $2 || defined $8) {
-                                my $call = $1;
-                                my $cast1 = deparenthesize($2);
-                                my $arg1 = $3;
-                                my $cast2 = deparenthesize($8);
-                                my $arg2 = $9;
-                                my $cast;
-
-                                if ($cast1 ne "" && $cast2 ne "") {
-                                        $cast = "$cast1 or $cast2";
-                                } elsif ($cast1 ne "") {
-                                        $cast = $cast1;
-                                } else {
-                                        $cast = $cast2;
-                                }
-                                WARN("MINMAX",
-                                     "$call() should probably be ${call}_t($cast, $arg1, $arg2)\n" . $herecurr);
-                        }
-                }
-
 # Need a space before open parenthesis after if, while etc
                 if ($line=~/\b(if|while|for|switch)\(/) {
                         ERROR("SPACING", "space required before the open parenthesis '('\n" . $herecurr);
@@ -2623,6 +2645,9 @@ sub process {
 # Check for illegal assignment in if conditional -- and check for trailing
 # statements after the conditional.
                 if ($line =~ /do\s*(?!{)/) {
+                        ($stat, $cond, $line_nr_next, $remain_next, $off_next) =
+                                ctx_statement_block($linenr, $realcnt, 0)
+                                        if (!defined $stat);
                         my ($stat_next) = ctx_statement_block($line_nr_next,
                                                 $remain_next, $off_next);
                         $stat_next =~ s/\n./\n /g;
@@ -2778,47 +2803,13 @@ sub process {
                         my $cnt = $realcnt;
                         my ($off, $dstat, $dcond, $rest);
                         my $ctx = '';
-
-                        my $args = defined($1);
-
-                        # Find the end of the macro and limit our statement
-                        # search to that.
-                        while ($cnt > 0 && defined $lines[$ln - 1] &&
-                                $lines[$ln - 1] =~ /^(?:-|..*\\$)/)
-                        {
-                                $ctx .= $rawlines[$ln - 1] . "\n";
-                                $cnt-- if ($lines[$ln - 1] !~ /^-/);
-                                $ln++;
-                        }
-                        $ctx .= $rawlines[$ln - 1];
-
                         ($dstat, $dcond, $ln, $cnt, $off) =
-                                ctx_statement_block($linenr, $ln - $linenr + 1, 0);
+                                ctx_statement_block($linenr, $realcnt, 0);
+                        $ctx = $dstat;
                         #print "dstat<$dstat> dcond<$dcond> cnt<$cnt> off<$off>\n";
                         #print "LINE<$lines[$ln-1]> len<" . length($lines[$ln-1]) . "\n";
 
-                        # Extract the remainder of the define (if any) and
-                        # rip off surrounding spaces, and trailing \'s.
-                        $rest = '';
-                        while ($off != 0 || ($cnt > 0 && $rest =~ /\\\s*$/)) {
-                                #print "ADDING cnt<$cnt> $off <" . substr($lines[$ln - 1], $off) . "> rest<$rest>\n";
-                                if ($off != 0 || $lines[$ln - 1] !~ /^-/) {
-                                        $rest .= substr($lines[$ln - 1], $off) . "\n";
-                                        $cnt--;
-                                }
-                                $ln++;
-                                $off = 0;
-                        }
-                        $rest =~ s/\\\n.//g;
-                        $rest =~ s/^\s*//s;
-                        $rest =~ s/\s*$//s;
-
-                        # Clean up the original statement.
-                        if ($args) {
-                                substr($dstat, 0, length($dcond), '');
-                        } else {
-                                $dstat =~ s/^.\s*\#\s*define\s+$Ident\s*//;
-                        }
+                        $dstat =~ s/^.\s*\#\s*define\s+$Ident(?:\([^\)]*\))?\s*//;
                         $dstat =~ s/$;//g;
                         $dstat =~ s/\\\n.//g;
                         $dstat =~ s/^\s*//s;
@@ -2827,7 +2818,7 @@ sub process {
                         # Flatten any parentheses and braces
                         while ($dstat =~ s/\([^\(\)]*\)/1/ ||
                                $dstat =~ s/\{[^\{\}]*\}/1/ ||
-                               $dstat =~ s/\[[^\{\}]*\]/1/)
+                               $dstat =~ s/\[[^\[\]]*\]/1/)
                         {
                         }
 
@@ -2844,23 +2835,32 @@ sub process {
                                 ^\"|\"$
                         }x;
                         #print "REST<$rest> dstat<$dstat> ctx<$ctx>\n";
-                        if ($rest ne '' && $rest ne ',') {
-                                if ($rest !~ /while\s*\(/ &&
-                                    $dstat !~ /$exceptions/)
-                                {
-                                        ERROR("MULTISTATEMENT_MACRO_USE_DO_WHILE",
-                                              "Macros with multiple statements should be enclosed in a do - while loop\n" . "$here\n$ctx\n");
+                        if ($dstat ne '' &&
+                            $dstat !~ /^(?:$Ident|-?$Constant),$/ &&                    # 10, // foo(),
+                            $dstat !~ /^(?:$Ident|-?$Constant);$/ &&                    # foo();
+                            $dstat !~ /^(?:$Ident|-?$Constant)$/ &&                     # 10 // foo()
+                            $dstat !~ /$exceptions/ &&
+                            $dstat !~ /^\.$Ident\s*=/ &&                                # .foo =
+                            $dstat !~ /^do\s*$Constant\s*while\s*$Constant;?$/ &&       # do {...} while (...); // do {...} while (...)
+                            $dstat !~ /^for\s*$Constant$/ &&                            # for (...)
+                            $dstat !~ /^for\s*$Constant\s+(?:$Ident|-?$Constant)$/ &&   # for (...) bar()
+                            $dstat !~ /^do\s*{/ &&                                      # do {...
+                            $dstat !~ /^\({/)                                           # ({...
+                        {
+                                $ctx =~ s/\n*$//;
+                                my $herectx = $here . "\n";
+                                my $cnt = statement_rawlines($ctx);
+
+                                for (my $n = 0; $n < $cnt; $n++) {
+                                        $herectx .= raw_line($linenr, $n) . "\n";
                                 }
 
-                        } elsif ($ctx !~ /;/) {
-                                if ($dstat ne '' &&
-                                    $dstat !~ /^(?:$Ident|-?$Constant)$/ &&
-                                    $dstat !~ /$exceptions/ &&
-                                    $dstat !~ /^\.$Ident\s*=/ &&
-                                    $dstat =~ /$Operators/)
-                                {
+                                if ($dstat =~ /;/) {
+                                        ERROR("MULTISTATEMENT_MACRO_USE_DO_WHILE",
+                                              "Macros with multiple statements should be enclosed in a do - while loop\n" . "$herectx");
+                                } else {
                                         ERROR("COMPLEX_MACRO",
-                                              "Macros with complex values should be enclosed in parenthesis\n" . "$here\n$ctx\n");
+                                              "Macros with complex values should be enclosed in parenthesis\n" . "$herectx");
                                 }
                         }
                 }
@@ -3111,6 +3111,12 @@ sub process {
                              "__aligned(size) is preferred over __attribute__((aligned(size)))\n" . $herecurr);
                 }
 
+# Check for __attribute__ format(printf, prefer __printf
+                if ($line =~ /\b__attribute__\s*\(\s*\(\s*format\s*\(\s*printf/) {
+                        WARN("PREFER_PRINTF",
+                             "__printf(string-index, first-to-check) is preferred over __attribute__((format(printf, string-index, first-to-check)))\n" . $herecurr);
+                }
+
 # check for sizeof(&)
                 if ($line =~ /\bsizeof\s*\(\s*\&/) {
                         WARN("SIZEOF_ADDRESS",
@@ -3123,6 +3129,46 @@ sub process {
                              "Avoid line continuations in quoted strings\n" . $herecurr);
                 }
 
+# Check for misused memsets
+                if (defined $stat &&
+                    $stat =~ /^\+(?:.*?)\bmemset\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\,\s*$FuncArg\s*\)/s) {
+
+                        my $ms_addr = $2;
+                        my $ms_val = $8;
+                        my $ms_size = $14;
+
+                        if ($ms_size =~ /^(0x|)0$/i) {
+                                ERROR("MEMSET",
+                                      "memset to 0's uses 0 as the 2nd argument, not the 3rd\n" . "$here\n$stat\n");
+                        } elsif ($ms_size =~ /^(0x|)1$/i) {
+                                WARN("MEMSET",
+                                     "single byte memset is suspicious. Swapped 2nd/3rd argument?\n" . "$here\n$stat\n");
+                        }
+                }
+
+# typecasts on min/max could be min_t/max_t
+                if (defined $stat &&
+                    $stat =~ /^\+(?:.*?)\b(min|max)\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\)/) {
+                        if (defined $2 || defined $8) {
+                                my $call = $1;
+                                my $cast1 = deparenthesize($2);
+                                my $arg1 = $3;
+                                my $cast2 = deparenthesize($8);
+                                my $arg2 = $9;
+                                my $cast;
+
+                                if ($cast1 ne "" && $cast2 ne "") {
+                                        $cast = "$cast1 or $cast2";
+                                } elsif ($cast1 ne "") {
+                                        $cast = $cast1;
+                                } else {
+                                        $cast = $cast2;
+                                }
+                                WARN("MINMAX",
+                                     "$call() should probably be ${call}_t($cast, $arg1, $arg2)\n" . "$here\n$stat\n");
+                        }
+                }
+
 # check for new externs in .c files.
                 if ($realfile =~ /\.c$/ && defined $stat &&
                     $stat =~ /^.\s*(?:extern\s+)?$Type\s+($Ident)(\s*)\(/s)
@@ -3294,12 +3340,6 @@ sub process {
                         WARN("EXPORTED_WORLD_WRITABLE",
                              "Exporting world writable files is usually an error. Consider more restrictive permissions.\n" . $herecurr);
                 }
-
-                # Check for memset with swapped arguments
-                if ($line =~ /memset.*\,(\ |)(0x|)0(\ |0|)\);/) {
-                        ERROR("MEMSET",
-                              "memset size is 3rd argument, not the second.\n" . $herecurr);
-                }
         }
 
         # If we have no input at all, then there is nothing to report on
diff --git a/scripts/checksyscalls.sh b/scripts/checksyscalls.sh
index 3ab316e52313..d24810fc6af6 100755
--- a/scripts/checksyscalls.sh
+++ b/scripts/checksyscalls.sh
@@ -198,11 +198,16 @@ EOF
 }
 
 syscall_list() {
-sed -n -e '/^\#define/ s/[^_]*__NR_\([^[:space:]]*\).*/\
-\#if !defined \(__NR_\1\) \&\& !defined \(__IGNORE_\1\)\
-\#warning syscall \1 not implemented\
-\#endif/p' $1
+    grep '^[0-9]' "$1" | sort -n | (
+        while read nr abi name entry ; do
+            echo <<EOF
+#if !defined(__NR_${name}) && !defined(__IGNORE_${name})
+#warning syscall ${name} not implemented
+#endif
+EOF
+        done
+    )
 }
 
-(ignore_list && syscall_list $(dirname $0)/../arch/x86/include/asm/unistd_32.h) | \
+(ignore_list && syscall_list $(dirname $0)/../arch/x86/syscalls/syscall_32.tbl) | \
 $* -E -x c - > /dev/null
diff --git a/scripts/coccicheck b/scripts/coccicheck
index 1bb1a1bd2daa..3c2776466d87 100755
--- a/scripts/coccicheck
+++ b/scripts/coccicheck
@@ -9,14 +9,23 @@ if [ "$C" = "1" -o "$C" = "2" ]; then
 #    FLAGS="-ignore_unknown_options -very_quiet"
 #    OPTIONS=$*
 
-# Workaround for Coccinelle < 0.2.3
-    FLAGS="-I $srctree/include -very_quiet"
-    shift $(( $# - 1 ))
-    OPTIONS=$1
+    if [ "$KBUILD_EXTMOD" = "" ] ; then
+        # Workaround for Coccinelle < 0.2.3
+        FLAGS="-I $srctree/include -very_quiet"
+        shift $(( $# - 1 ))
+        OPTIONS=$1
+    else
+        echo M= is not currently supported when C=1 or C=2
+        exit 1
+    fi
 else
     ONLINE=0
     FLAGS="-very_quiet"
-    OPTIONS="-dir $srctree"
+    if [ "$KBUILD_EXTMOD" = "" ] ; then
+        OPTIONS="-dir $srctree"
+    else
+        OPTIONS="-dir $KBUILD_EXTMOD -patch $srctree -I $srctree/include -I $KBUILD_EXTMOD/include"
+    fi
 fi
 
 if [ ! -x "$SPATCH" ]; then
diff --git a/scripts/coccinelle/api/devm_request_and_ioremap.cocci b/scripts/coccinelle/api/devm_request_and_ioremap.cocci
new file mode 100644
index 000000000000..46beb81406ab
--- /dev/null
+++ b/scripts/coccinelle/api/devm_request_and_ioremap.cocci
@@ -0,0 +1,105 @@
+/// Reimplement a call to devm_request_mem_region followed by a call to ioremap
+/// or ioremap_nocache by a call to devm_request_and_ioremap.
+/// Devm_request_and_ioremap was introduced in
+/// 72f8c0bfa0de64c68ee59f40eb9b2683bffffbb0.  It makes the code much more
+/// concise.
+///
+///
+// Confidence: High
+// Copyright: (C) 2011 Julia Lawall, INRIA/LIP6.  GPLv2.
+// Copyright: (C) 2011 Gilles Muller, INRIA/LiP6.  GPLv2.
+// URL: http://coccinelle.lip6.fr/
+// Comments:
+// Options: -no_includes -include_headers
+
+virtual patch
+virtual org
+virtual report
+virtual context
+
+@nm@
+expression myname;
+identifier i;
+@@
+
+struct platform_driver i = { .driver = { .name = myname } };
+
+@depends on patch@
+expression dev,res,size;
+@@
+
+-if (!devm_request_mem_region(dev, res->start, size,
+-                              \(res->name\|dev_name(dev)\))) {
+-   ...
+-   return ...;
+-}
+... when != res->start
+(
+-devm_ioremap(dev,res->start,size)
++devm_request_and_ioremap(dev,res)
+|
+-devm_ioremap_nocache(dev,res->start,size)
++devm_request_and_ioremap(dev,res)
+)
+... when any
+    when != res->start
+
+// this rule is separate from the previous one, because a single file can
+// have multiple values of myname
+@depends on patch@
+expression dev,res,size;
+expression nm.myname;
+@@
+
+-if (!devm_request_mem_region(dev, res->start, size,myname)) {
+-   ...
+-   return ...;
+-}
+... when != res->start
+(
+-devm_ioremap(dev,res->start,size)
++devm_request_and_ioremap(dev,res)
+|
+-devm_ioremap_nocache(dev,res->start,size)
++devm_request_and_ioremap(dev,res)
+)
+... when any
+    when != res->start
+
+
+@pb depends on org || report || context@
+expression dev,res,size;
+expression nm.myname;
+position p1,p2;
+@@
+
+*if
+  (!devm_request_mem_region@p1(dev, res->start, size,
+                              \(res->name\|dev_name(dev)\|myname\))) {
+   ...
+   return ...;
+}
+... when != res->start
+(
+*devm_ioremap@p2(dev,res->start,size)
+|
+*devm_ioremap_nocache@p2(dev,res->start,size)
+)
+... when any
+    when != res->start
+
+@script:python depends on org@
+p1 << pb.p1;
+p2 << pb.p2;
+@@
+
+cocci.print_main("INFO: replace by devm_request_and_ioremap",p1)
+cocci.print_secs("",p2)
+
+@script:python depends on report@
+p1 << pb.p1;
+p2 << pb.p2;
+@@
+
+msg = "INFO: devm_request_mem_region followed by ioremap on line %s can be replaced by devm_request_and_ioremap" % (p2[0].line)
+coccilib.report.print_report(p1[0],msg)
diff --git a/scripts/coccinelle/api/kstrdup.cocci b/scripts/coccinelle/api/kstrdup.cocci
index e0805ad08d39..07a74b2c6196 100644
--- a/scripts/coccinelle/api/kstrdup.cocci
+++ b/scripts/coccinelle/api/kstrdup.cocci
@@ -1,16 +1,19 @@
 /// Use kstrdup rather than duplicating its implementation
 ///
 // Confidence: High
-// Copyright: (C) 2010 Nicolas Palix, DIKU.  GPLv2.
-// Copyright: (C) 2010 Julia Lawall, DIKU.  GPLv2.
-// Copyright: (C) 2010 Gilles Muller, INRIA/LiP6.  GPLv2.
+// Copyright: (C) 2010-2012 Nicolas Palix.  GPLv2.
+// Copyright: (C) 2010-2012 Julia Lawall, INRIA/LIP6.  GPLv2.
+// Copyright: (C) 2010-2012 Gilles Muller, INRIA/LiP6.  GPLv2.
 // URL: http://coccinelle.lip6.fr/
 // Comments:
 // Options: -no_includes -include_headers
 
 virtual patch
+virtual context
+virtual org
+virtual report
 
-@@
+@depends on patch@
 expression from,to;
 expression flag,E1,E2;
 statement S;
@@ -23,7 +26,7 @@ statement S;
    ... when != \(from = E2 \| to = E2 \)
 -  strcpy(to, from);
 
-@@
+@depends on patch@
 expression x,from,to;
 expression flag,E1,E2,E3;
 statement S;
@@ -37,3 +40,65 @@ statement S;
     if (to==NULL || ...) S
     ... when != \(x = E3 \| from = E3 \| to = E3 \)
 -   memcpy(to, from, x);
+
+// ---------------------------------------------------------------------
+
+@r1 depends on !patch exists@
+expression from,to;
+expression flag,E1,E2;
+statement S;
+position p1,p2;
+@@
+
+*  to = kmalloc@p1(strlen(from) + 1,flag);
+   ... when != \(from = E1 \| to = E1 \)
+   if (to==NULL || ...) S
+   ... when != \(from = E2 \| to = E2 \)
+*  strcpy@p2(to, from);
+
+@r2 depends on !patch exists@
+expression x,from,to;
+expression flag,E1,E2,E3;
+statement S;
+position p1,p2;
+@@
+
+*   x = strlen(from) + 1;
+    ... when != \( x = E1 \| from = E1 \)
+*   to = \(kmalloc@p1\|kzalloc@p2\)(x,flag);
+    ... when != \(x = E2 \| from = E2 \| to = E2 \)
+    if (to==NULL || ...) S
+    ... when != \(x = E3 \| from = E3 \| to = E3 \)
+*   memcpy@p2(to, from, x);
+
+@script:python depends on org@
+p1 << r1.p1;
+p2 << r1.p2;
+@@
+
+cocci.print_main("WARNING opportunity for kstrdep",p1)
+cocci.print_secs("strcpy",p2)
+
+@script:python depends on org@
+p1 << r2.p1;
+p2 << r2.p2;
+@@
+
+cocci.print_main("WARNING opportunity for kstrdep",p1)
+cocci.print_secs("memcpy",p2)
+
+@script:python depends on report@
+p1 << r1.p1;
+p2 << r1.p2;
+@@
+
+msg = "WARNING opportunity for kstrdep (strcpy on line %s)" % (p2[0].line)
+coccilib.report.print_report(p1[0], msg)
+
+@script:python depends on report@
+p1 << r2.p1;
+p2 << r2.p2;
+@@
+
+msg = "WARNING opportunity for kstrdep (memcpy on line %s)" % (p2[0].line)
+coccilib.report.print_report(p1[0], msg)
diff --git a/scripts/coccinelle/api/memdup.cocci b/scripts/coccinelle/api/memdup.cocci
index b5d722077dc1..4dceab6d54de 100644
--- a/scripts/coccinelle/api/memdup.cocci
+++ b/scripts/coccinelle/api/memdup.cocci
@@ -1,14 +1,17 @@
 /// Use kmemdup rather than duplicating its implementation
 ///
 // Confidence: High
-// Copyright: (C) 2010 Nicolas Palix, DIKU.  GPLv2.
-// Copyright: (C) 2010 Julia Lawall, DIKU.  GPLv2.
-// Copyright: (C) 2010 Gilles Muller, INRIA/LiP6.  GPLv2.
+// Copyright: (C) 2010-2012 Nicolas Palix.  GPLv2.
+// Copyright: (C) 2010-2012 Julia Lawall, INRIA/LIP6.  GPLv2.
+// Copyright: (C) 2010-2012 Gilles Muller, INRIA/LiP6.  GPLv2.
 // URL: http://coccinelle.lip6.fr/
 // Comments:
 // Options: -no_includes -include_headers
 
 virtual patch
+virtual context
+virtual org
+virtual report
 
 @r1@
 expression from,to;
@@ -28,7 +31,7 @@ position p;
     ... when != \( x = E1 \| from = E1 \)
     to = \(kmalloc@p\|kzalloc@p\)(x,flag);
 
-@@
+@depends on patch@
 expression from,to,size,flag;
 position p != {r1.p,r2.p};
 statement S;
@@ -38,3 +41,26 @@ statement S;
 +  to = kmemdup(from,size,flag);
    if (to==NULL || ...) S
 -  memcpy(to, from, size);
+
+@r depends on !patch@
+expression from,to,size,flag;
+position p != {r1.p,r2.p};
+statement S;
+@@
+
+*  to = \(kmalloc@p\|kzalloc@p\)(size,flag);
+   to = kmemdup(from,size,flag);
+   if (to==NULL || ...) S
+*  memcpy(to, from, size);
+
+@script:python depends on org@
+p << r.p;
+@@
+
+coccilib.org.print_todo(p[0], "WARNING opportunity for kmemdep")
+
+@script:python depends on report@
+p << r.p;
+@@
+
+coccilib.report.print_report(p[0], "WARNING opportunity for kmemdep")
diff --git a/scripts/coccinelle/api/memdup_user.cocci b/scripts/coccinelle/api/memdup_user.cocci
index 72ce012e878a..2efac289fd59 100644
--- a/scripts/coccinelle/api/memdup_user.cocci
+++ b/scripts/coccinelle/api/memdup_user.cocci
@@ -1,23 +1,25 @@
-/// Use kmemdup_user rather than duplicating its implementation
+/// Use memdup_user rather than duplicating its implementation
 /// This is a little bit restricted to reduce false positives
 ///
 // Confidence: High
-// Copyright: (C) 2010 Nicolas Palix, DIKU.  GPLv2.
-// Copyright: (C) 2010 Julia Lawall, DIKU.  GPLv2.
-// Copyright: (C) 2010 Gilles Muller, INRIA/LiP6.  GPLv2.
+// Copyright: (C) 2010-2012 Nicolas Palix.  GPLv2.
+// Copyright: (C) 2010-2012 Julia Lawall, INRIA/LIP6.  GPLv2.
+// Copyright: (C) 2010-2012 Gilles Muller, INRIA/LiP6.  GPLv2.
 // URL: http://coccinelle.lip6.fr/
 // Comments:
 // Options: -no_includes -include_headers
 
 virtual patch
+virtual context
+virtual org
+virtual report
 
-@@
+@depends on patch@
 expression from,to,size,flag;
-position p;
 identifier l1,l2;
 @@
 
--  to = \(kmalloc@p\|kzalloc@p\)(size,flag);
+-  to = \(kmalloc\|kzalloc\)(size,flag);
 +  to = memdup_user(from,size);
    if (
 -      to==NULL
@@ -33,3 +35,26 @@ identifier l1,l2;
 -    -EFAULT
 -    ...+>
 -  }
+
+@r depends on !patch@
+expression from,to,size,flag;
+position p;
+statement S1,S2;
+@@
+
+*  to = \(kmalloc@p\|kzalloc@p\)(size,flag);
+   if (to==NULL || ...) S1
+   if (copy_from_user(to, from, size) != 0)
+   S2
+
+@script:python depends on org@
+p << r.p;
+@@
+
+coccilib.org.print_todo(p[0], "WARNING opportunity for memdep_user")
+
+@script:python depends on report@
+p << r.p;
+@@
+
+coccilib.report.print_report(p[0], "WARNING opportunity for memdep_user")
diff --git a/scripts/coccinelle/free/devm_free.cocci b/scripts/coccinelle/free/devm_free.cocci
new file mode 100644
index 000000000000..0a1e36146d76
--- /dev/null
+++ b/scripts/coccinelle/free/devm_free.cocci
@@ -0,0 +1,71 @@
+/// Find uses of standard freeing functons on values allocated using devm_
+/// functions.  Values allocated using the devm_functions are freed when
+/// the device is detached, and thus the use of the standard freeing
+/// function would cause a double free.
+/// See Documentation/driver-model/devres.txt for more information.
+///
+/// A difficulty of detecting this problem is that the standard freeing
+/// function might be called from a different function than the one
+/// containing the allocation function.  It is thus necessary to make the
+/// connection between the allocation function and the freeing function.
+/// Here this is done using the specific argument text, which is prone to
+/// false positives.  There is no rule for the request_region and
+/// request_mem_region variants because this heuristic seems to be a bit
+/// less reliable in these cases.
+///
+// Confidence: Moderate
+// Copyright: (C) 2011 Julia Lawall, INRIA/LIP6.  GPLv2.
+// Copyright: (C) 2011 Gilles Muller, INRIA/LiP6.  GPLv2.
+// URL: http://coccinelle.lip6.fr/
+// Comments:
+// Options: -no_includes -include_headers
+
+virtual org
+virtual report
+virtual context
+
+@r depends on context || org || report@
+expression x;
+@@
+
+(
+ x = devm_kzalloc(...)
+|
+ x = devm_request_irq(...)
+|
+ x = devm_ioremap(...)
+|
+ x = devm_ioremap_nocache(...)
+|
+ x = devm_ioport_map(...)
+)
+
+@pb@
+expression r.x;
+position p;
+@@
+
+(
+* kfree@p(x)
+|
+* free_irq@p(x)
+|
+* iounmap@p(x)
+|
+* ioport_unmap@p(x)
+)
+
+@script:python depends on org@
+p << pb.p;
+@@
+
+msg="WARNING: invalid free of devm_ allocated data"
+coccilib.org.print_todo(p[0], msg)
+
+@script:python depends on report@
+p << pb.p;
+@@
+
+msg="WARNING: invalid free of devm_ allocated data"
+coccilib.report.print_report(p[0], msg)
+
diff --git a/scripts/coccinelle/free/kfree.cocci b/scripts/coccinelle/free/kfree.cocci
index f9f79d9245ee..d9ae6d89c2f5 100644
--- a/scripts/coccinelle/free/kfree.cocci
+++ b/scripts/coccinelle/free/kfree.cocci
@@ -5,9 +5,9 @@
 //# SCTP_DBG_OBJCNT_DEC that do not actually evaluate their argument
 ///
 // Confidence: Moderate
-// Copyright: (C) 2010 Nicolas Palix, DIKU.  GPLv2.
-// Copyright: (C) 2010 Julia Lawall, DIKU.  GPLv2.
-// Copyright: (C) 2010 Gilles Muller, INRIA/LiP6.  GPLv2.
+// Copyright: (C) 2010-2012 Nicolas Palix.  GPLv2.
+// Copyright: (C) 2010-2012 Julia Lawall, INRIA/LIP6.  GPLv2.
+// Copyright: (C) 2010-2012 Gilles Muller, INRIA/LiP6.  GPLv2.
 // URL: http://coccinelle.lip6.fr/
 // Comments:
 // Options: -no_includes -include_headers
@@ -23,7 +23,7 @@ position p1;
 kfree@p1(E)
 
 @print expression@
-constant char *c;
+constant char [] c;
 expression free.E,E2;
 type T;
 position p;
@@ -37,6 +37,10 @@ identifier f;
 |
  E@p != E2
 |
+ E2 == E@p
+|
+ E2 != E@p
+|
  !E@p
 |
  E@p || ...
@@ -113,5 +117,5 @@ p1 << free.p1;
 p2 << r.p2;
 @@
 
-msg = "reference preceded by free on line %s" % (p1[0].line)
+msg = "ERROR: reference preceded by free on line %s" % (p1[0].line)
 coccilib.report.print_report(p2[0],msg)
diff --git a/scripts/coccinelle/iterators/fen.cocci b/scripts/coccinelle/iterators/fen.cocci
index 77bc108c3f59..0a40af828c43 100644
--- a/scripts/coccinelle/iterators/fen.cocci
+++ b/scripts/coccinelle/iterators/fen.cocci
@@ -2,16 +2,19 @@
 /// is no point to call of_node_put on the final value.
 ///
 // Confidence: High
-// Copyright: (C) 2010 Nicolas Palix, DIKU.  GPLv2.
-// Copyright: (C) 2010 Julia Lawall, DIKU.  GPLv2.
-// Copyright: (C) 2010 Gilles Muller, INRIA/LiP6.  GPLv2.
+// Copyright: (C) 2010-2012 Nicolas Palix.  GPLv2.
+// Copyright: (C) 2010-2012 Julia Lawall, INRIA/LIP6.  GPLv2.
+// Copyright: (C) 2010-2012 Gilles Muller, INRIA/LiP6.  GPLv2.
 // URL: http://coccinelle.lip6.fr/
 // Comments:
 // Options: -no_includes -include_headers
 
 virtual patch
+virtual context
+virtual org
+virtual report
 
-@@
+@depends on patch@
 iterator name for_each_node_by_name;
 expression np,E;
 identifier l;
@@ -24,7 +27,7 @@ for_each_node_by_name(np,...) {
 ... when != np = E
 - of_node_put(np);
 
-@@
+@depends on patch@
 iterator name for_each_node_by_type;
 expression np,E;
 identifier l;
@@ -37,7 +40,7 @@ for_each_node_by_type(np,...) {
 ... when != np = E
 - of_node_put(np);
 
-@@
+@depends on patch@
 iterator name for_each_compatible_node;
 expression np,E;
 identifier l;
@@ -50,7 +53,7 @@ for_each_compatible_node(np,...) {
 ... when != np = E
 - of_node_put(np);
 
-@@
+@depends on patch@
 iterator name for_each_matching_node;
 expression np,E;
 identifier l;
@@ -62,3 +65,59 @@ for_each_matching_node(np,...) {
 }
 ... when != np = E
 - of_node_put(np);
+
+// ----------------------------------------------------------------------
+
+@r depends on !patch forall@
+//iterator name for_each_node_by_name;
+//iterator name for_each_node_by_type;
+//iterator name for_each_compatible_node;
+//iterator name for_each_matching_node;
+expression np,E;
+identifier l;
+position p1,p2;
+@@
+
+(
+*for_each_node_by_name@p1(np,...)
+{
+  ... when != break;
+      when != goto l;
+}
+|
+*for_each_node_by_type@p1(np,...)
+{
+  ... when != break;
+      when != goto l;
+}
+|
+*for_each_compatible_node@p1(np,...)
+{
+  ... when != break;
+      when != goto l;
+}
+|
+*for_each_matching_node@p1(np,...)
+{
+  ... when != break;
+      when != goto l;
+}
+)
+... when != np = E
+* of_node_put@p2(np);
+
+@script:python depends on org@
+p1 << r.p1;
+p2 << r.p2;
+@@
+
+cocci.print_main("unneeded of_node_put",p2)
+cocci.print_secs("iterator",p1)
+
+@script:python depends on report@
+p1 << r.p1;
+p2 << r.p2;
+@@
+
+msg = "ERROR: of_node_put not needed after iterator on line %s" % (p1[0].line)
+coccilib.report.print_report(p2[0], msg)
diff --git a/scripts/coccinelle/iterators/itnull.cocci b/scripts/coccinelle/iterators/itnull.cocci
index baa4297a4ed1..259899f6838e 100644
--- a/scripts/coccinelle/iterators/itnull.cocci
+++ b/scripts/coccinelle/iterators/itnull.cocci
@@ -1,20 +1,24 @@
 /// Many iterators have the property that the first argument is always bound
-/// to a real list element, never NULL.  False positives arise for some
-/// iterators that do not have this property, or in cases when the loop
-/// cursor is reassigned.  The latter should only happen when the matched
-/// code is on the way to a loop exit (break, goto, or return).
+/// to a real list element, never NULL.
+//# False positives arise for some iterators that do not have this property,
+//# or in cases when the loop cursor is reassigned.  The latter should only
+//# happen when the matched code is on the way to a loop exit (break, goto,
+//# or return).
 ///
 // Confidence: Moderate
-// Copyright: (C) 2010 Nicolas Palix, DIKU.  GPLv2.
-// Copyright: (C) 2010 Julia Lawall, DIKU.  GPLv2.
-// Copyright: (C) 2010 Gilles Muller, INRIA/LiP6.  GPLv2.
+// Copyright: (C) 2010-2012 Nicolas Palix.  GPLv2.
+// Copyright: (C) 2010-2012 Julia Lawall, INRIA/LIP6.  GPLv2.
+// Copyright: (C) 2010-2012 Gilles Muller, INRIA/LiP6.  GPLv2.
 // URL: http://coccinelle.lip6.fr/
 // Comments:
 // Options: -no_includes -include_headers
 
 virtual patch
+virtual context
+virtual org
+virtual report
 
-@@
+@depends on patch@
 iterator I;
 expression x,E,E1,E2;
 statement S,S1,S2;
@@ -55,4 +59,36 @@ I(x,...) { <...
   x != NULL
 + )
 )
-  ...> }
\ No newline at end of file
+  ...> }
+
+@r depends on !patch exists@
+iterator I;
+expression x,E;
+position p1,p2;
+@@
+
+*I@p1(x,...)
+{ ... when != x = E
+(
+*  x@p2 == NULL
+|
+*  x@p2 != NULL
+)
+  ... when any
+}
+
+@script:python depends on org@
+p1 << r.p1;
+p2 << r.p2;
+@@
+
+cocci.print_main("iterator-bound variable",p1)
+cocci.print_secs("useless NULL test",p2)
+
+@script:python depends on report@
+p1 << r.p1;
+p2 << r.p2;
+@@
+
+msg = "ERROR: iterator variable bound on line %s cannot be NULL" % (p1[0].line)
+coccilib.report.print_report(p2[0], msg)
diff --git a/scripts/coccinelle/locks/call_kern.cocci b/scripts/coccinelle/locks/call_kern.cocci
index 00af5344a68f..8f10b49603c3 100644
--- a/scripts/coccinelle/locks/call_kern.cocci
+++ b/scripts/coccinelle/locks/call_kern.cocci
@@ -1,17 +1,20 @@
 /// Find functions that refer to GFP_KERNEL but are called with locks held.
-/// The proposed change of converting the GFP_KERNEL is not necessarily the
-/// correct one.  It may be desired to unlock the lock, or to not call the
-/// function under the lock in the first place.
+//# The proposed change of converting the GFP_KERNEL is not necessarily the
+//# correct one.  It may be desired to unlock the lock, or to not call the
+//# function under the lock in the first place.
 ///
 // Confidence: Moderate
-// Copyright: (C) 2010 Nicolas Palix, DIKU.  GPLv2.
-// Copyright: (C) 2010 Julia Lawall, DIKU.  GPLv2.
-// Copyright: (C) 2010 Gilles Muller, INRIA/LiP6.  GPLv2.
+// Copyright: (C) 2012 Nicolas Palix.  GPLv2.
+// Copyright: (C) 2012 Julia Lawall, INRIA/LIP6.  GPLv2.
+// Copyright: (C) 2012 Gilles Muller, INRIA/LiP6.  GPLv2.
 // URL: http://coccinelle.lip6.fr/
 // Comments:
 // Options: -no_includes -include_headers
 
 virtual patch
+virtual context
+virtual org
+virtual report
 
 @gfp exists@
 identifier fn;
@@ -32,28 +35,29 @@ fn(...) {
  ... when any
 }
 
-@locked@
+@locked exists@
 identifier gfp.fn;
+position p1,p2;
 @@
 
 (
-read_lock_irq
+read_lock_irq@p1
 |
-write_lock_irq
+write_lock_irq@p1
 |
-read_lock_irqsave
+read_lock_irqsave@p1
 |
-write_lock_irqsave
+write_lock_irqsave@p1
 |
-spin_lock
+spin_lock@p1
 |
-spin_trylock
+spin_trylock@p1
 |
-spin_lock_irq
+spin_lock_irq@p1
 |
-spin_lock_irqsave
+spin_lock_irqsave@p1
 |
-local_irq_disable
+local_irq_disable@p1
 )
  (...)
 ...  when != read_unlock_irq(...)
@@ -64,11 +68,38 @@ local_irq_disable
      when != spin_unlock_irq(...)
      when != spin_unlock_irqrestore(...)
      when != local_irq_enable(...)
-fn(...)
+fn@p2(...)
 
-@depends on locked@
+@depends on locked && patch@
 position gfp.p;
 @@
 
 - GFP_KERNEL@p
 + GFP_ATOMIC
+
+@depends on locked && !patch@
+position gfp.p;
+@@
+
+* GFP_KERNEL@p
+
+@script:python depends on !patch && org@
+p << gfp.p;
+fn << gfp.fn;
+p1 << locked.p1;
+p2 << locked.p2;
+@@
+
+cocci.print_main("lock",p1)
+cocci.print_secs("call",p2)
+cocci.print_secs("GFP_KERNEL",p)
+
+@script:python depends on !patch && report@
+p << gfp.p;
+fn << gfp.fn;
+p1 << locked.p1;
+p2 << locked.p2;
+@@
+
+msg = "ERROR: function %s called on line %s inside lock on line %s but uses GFP_KERNEL" % (fn,p2[0].line,p1[0].line)
+coccilib.report.print_report(p[0], msg)
diff --git a/scripts/coccinelle/locks/flags.cocci b/scripts/coccinelle/locks/flags.cocci
index b4344d838097..1c4ffe6fd846 100644
--- a/scripts/coccinelle/locks/flags.cocci
+++ b/scripts/coccinelle/locks/flags.cocci
@@ -1,9 +1,9 @@
 /// Find nested lock+irqsave functions that use the same flags variables
 ///
 // Confidence: High
-// Copyright: (C) 2010 Nicolas Palix, DIKU.  GPLv2.
-// Copyright: (C) 2010 Julia Lawall, DIKU.  GPLv2.
-// Copyright: (C) 2010 Gilles Muller, INRIA/LiP6.  GPLv2.
+// Copyright: (C) 2010-2012 Nicolas Palix.  GPLv2.
+// Copyright: (C) 2010-2012 Julia Lawall, INRIA/LIP6.  GPLv2.
+// Copyright: (C) 2010-2012 Gilles Muller, INRIA/LiP6.  GPLv2.
 // URL: http://coccinelle.lip6.fr/
 // Comments:
 // Options: -no_includes -include_headers
@@ -12,7 +12,7 @@ virtual context
 virtual org
 virtual report
 
-@r@
+@r exists@
 expression lock1,lock2,flags;
 position p1,p2;
 @@
@@ -39,7 +39,7 @@ read_lock_irqsave@p2(lock2,flags)
 write_lock_irqsave@p2(lock2,flags)
 )
 
-@d@
+@d exists@
 expression f <= r.flags;
 expression lock1,lock2,flags;
 position r.p1, r.p2;
@@ -76,5 +76,5 @@ p1 << r.p1;
 p2 << r.p2;
 @@
 
-msg="ERROR: nested lock+irqsave that reuses flags from %s." % (p1[0].line)
+msg="ERROR: nested lock+irqsave that reuses flags from line %s." % (p1[0].line)
 coccilib.report.print_report(p2[0], msg)
diff --git a/scripts/coccinelle/locks/mini_lock.cocci b/scripts/coccinelle/locks/mini_lock.cocci
index 7641a2925434..3267d7410bd5 100644
--- a/scripts/coccinelle/locks/mini_lock.cocci
+++ b/scripts/coccinelle/locks/mini_lock.cocci
@@ -6,13 +6,14 @@
 /// function call that releases the lock.
 ///
 // Confidence: Moderate
-// Copyright: (C) 2010 Nicolas Palix, DIKU.  GPLv2.
-// Copyright: (C) 2010 Julia Lawall, DIKU.  GPLv2.
-// Copyright: (C) 2010 Gilles Muller, INRIA/LiP6.  GPLv2.
+// Copyright: (C) 2010-2012 Nicolas Palix.  GPLv2.
+// Copyright: (C) 2010-2012 Julia Lawall, INRIA/LIP6.  GPLv2.
+// Copyright: (C) 2010-2012 Gilles Muller, INRIA/LiP6.  GPLv2.
 // URL: http://coccinelle.lip6.fr/
 // Comments:
 // Options: -no_includes -include_headers
 
+virtual context
 virtual org
 virtual report
 
@@ -57,7 +58,7 @@ position r;
 
 for(...;...;...) { <+... return@r ...; ...+> }
 
-@err@
+@err exists@
 expression E1;
 position prelocked.p;
 position up != prelocked.p1;
@@ -65,14 +66,14 @@ position r!=looped.r;
 identifier lock,unlock;
 @@
 
-lock(E1@p,...);
+*lock(E1@p,...);
 <+... when != E1
 if (...) {
   ... when != E1
-  return@r ...;
+*  return@r ...;
 }
 ...+>
-unlock@up(E1,...);
+*unlock@up(E1,...);
 
 @script:python depends on org@
 p << prelocked.p1;
diff --git a/scripts/coccinelle/misc/doubleinit.cocci b/scripts/coccinelle/misc/doubleinit.cocci
index 156b20adb351..cf74a00cf597 100644
--- a/scripts/coccinelle/misc/doubleinit.cocci
+++ b/scripts/coccinelle/misc/doubleinit.cocci
@@ -3,9 +3,9 @@
 /// initialization.
 ///
 // Confidence: Low
-// Copyright: (C) 2010 Nicolas Palix, DIKU.  GPLv2.
-// Copyright: (C) 2010 Julia Lawall, DIKU.  GPLv2.
-// Copyright: (C) 2010 Gilles Muller, INRIA/LiP6.  GPLv2.
+// Copyright: (C) 2010-2012 Nicolas Palix.  GPLv2.
+// Copyright: (C) 2010-2012 Julia Lawall, INRIA/LIP6.  GPLv2.
+// Copyright: (C) 2010-2012 Gilles Muller, INRIA/LiP6.  GPLv2.
 // URL: http://coccinelle.lip6.fr/
 // Comments: requires at least Coccinelle 0.2.4, lex or parse error otherwise
 // Options: -no_includes -include_headers
@@ -49,5 +49,5 @@ pr << r.p;
 @@
 
 if int(ps[0].line) < int(pr[0].line) or (int(ps[0].line) == int(pr[0].line) and int(ps[0].column) < int(pr[0].column)):
-  msg = "%s: first occurrence %s, second occurrence %s" % (fld,ps[0].line,pr[0].line)
+  msg = "%s: first occurrence line %s, second occurrence line %s" % (fld,ps[0].line,pr[0].line)
   coccilib.report.print_report(p0[0],msg)
diff --git a/scripts/coccinelle/null/eno.cocci b/scripts/coccinelle/null/eno.cocci
index 4c9c52b9c413..ed961a1f7d11 100644
--- a/scripts/coccinelle/null/eno.cocci
+++ b/scripts/coccinelle/null/eno.cocci
@@ -1,16 +1,19 @@
 /// The various basic memory allocation functions don't return ERR_PTR
 ///
 // Confidence: High
-// Copyright: (C) 2010 Nicolas Palix, DIKU.  GPLv2.
-// Copyright: (C) 2010 Julia Lawall, DIKU.  GPLv2.
-// Copyright: (C) 2010 Gilles Muller, INRIA/LiP6.  GPLv2.
+// Copyright: (C) 2010-2012 Nicolas Palix.  GPLv2.
+// Copyright: (C) 2010-2012 Julia Lawall, INRIA/LIP6.  GPLv2.
+// Copyright: (C) 2010-2012 Gilles Muller, INRIA/LiP6.  GPLv2.
 // URL: http://coccinelle.lip6.fr/
 // Comments:
 // Options: -no_includes -include_headers
 
 virtual patch
+virtual context
+virtual org
+virtual report
 
-@@
+@depends on patch@
 expression x,E;
 @@
 
@@ -18,3 +21,28 @@ x = \(kmalloc\|kzalloc\|kcalloc\|kmem_cache_alloc\|kmem_cache_zalloc\|kmem_cache
 ... when != x = E
 - IS_ERR(x)
 + !x
+
+@r depends on !patch exists@
+expression x,E;
+position p1,p2;
+@@
+
+*x = \(kmalloc@p1\|kzalloc@p1\|kcalloc@p1\|kmem_cache_alloc@p1\|kmem_cache_zalloc@p1\|kmem_cache_alloc_node@p1\|kmalloc_node@p1\|kzalloc_node@p1\)(...)
+... when != x = E
+* IS_ERR@p2(x)
+
+@script:python depends on org@
+p1 << r.p1;
+p2 << r.p2;
+@@
+
+cocci.print_main("alloc call",p1)
+cocci.print_secs("IS_ERR that should be NULL tests",p2)
+
+@script:python depends on report@
+p1 << r.p1;
+p2 << r.p2;
+@@
+
+msg = "ERROR: allocation function on line %s returns NULL not ERR_PTR on failure" % (p1[0].line)
+coccilib.report.print_report(p2[0], msg)
diff --git a/scripts/dtc/dtc.c b/scripts/dtc/dtc.c
index cbc0193098e4..451c92d31b19 100644
--- a/scripts/dtc/dtc.c
+++ b/scripts/dtc/dtc.c
@@ -71,6 +71,7 @@ static void  __attribute__ ((noreturn)) usage(void)
         fprintf(stderr, "\t\t\tasm - assembler source\n");
         fprintf(stderr, "\t-V <output version>\n");
         fprintf(stderr, "\t\tBlob version to produce, defaults to %d (relevant for dtb\n\t\tand asm output only)\n", DEFAULT_FDT_VERSION);
+        fprintf(stderr, "\t-d <output dependency file>\n");
         fprintf(stderr, "\t-R <number>\n");
         fprintf(stderr, "\t\tMake space for <number> reserve map entries (relevant for \n\t\tdtb and asm output only)\n");
         fprintf(stderr, "\t-S <bytes>\n");
@@ -99,6 +100,7 @@ int main(int argc, char *argv[])
         const char *inform = "dts";
         const char *outform = "dts";
         const char *outname = "-";
+        const char *depname = NULL;
         int force = 0, check = 0, sort = 0;
         const char *arg;
         int opt;
@@ -111,7 +113,8 @@ int main(int argc, char *argv[])
         minsize    = 0;
         padsize    = 0;
 
-        while ((opt = getopt(argc, argv, "hI:O:o:V:R:S:p:fcqb:vH:s")) != EOF) {
+        while ((opt = getopt(argc, argv, "hI:O:o:V:d:R:S:p:fcqb:vH:s"))
+                        != EOF) {
                 switch (opt) {
                 case 'I':
                         inform = optarg;
@@ -125,6 +128,9 @@ int main(int argc, char *argv[])
                 case 'V':
                         outversion = strtol(optarg, NULL, 0);
                         break;
+                case 'd':
+                        depname = optarg;
+                        break;
                 case 'R':
                         reservenum = strtol(optarg, NULL, 0);
                         break;
@@ -188,6 +194,14 @@ int main(int argc, char *argv[])
         fprintf(stderr, "DTC: %s->%s  on file \"%s\"\n",
                 inform, outform, arg);
 
+        if (depname) {
+                depfile = fopen(depname, "w");
+                if (!depfile)
+                        die("Couldn't open dependency file %s: %s\n", depname,
+                            strerror(errno));
+                fprintf(depfile, "%s:", outname);
+        }
+
         if (streq(inform, "dts"))
                 bi = dt_from_source(arg);
         else if (streq(inform, "fs"))
@@ -197,6 +211,11 @@ int main(int argc, char *argv[])
         else
                 die("Unknown input format \"%s\"\n", inform);
 
+        if (depfile) {
+                fputc('\n', depfile);
+                fclose(depfile);
+        }
+
         if (cmdline_boot_cpuid != -1)
                 bi->boot_cpuid_phys = cmdline_boot_cpuid;
 
diff --git a/scripts/dtc/srcpos.c b/scripts/dtc/srcpos.c
index 2dbc874288ca..36a38e9f1a2c 100644
--- a/scripts/dtc/srcpos.c
+++ b/scripts/dtc/srcpos.c
@@ -40,6 +40,7 @@ static char *dirname(const char *path)
         return NULL;
 }
 
+FILE *depfile; /* = NULL */
 struct srcfile_state *current_srcfile; /* = NULL */
 
 /* Detect infinite include recursion. */
@@ -67,6 +68,9 @@ FILE *srcfile_relative_open(const char *fname, char **fullnamep)
                             strerror(errno));
         }
 
+        if (depfile)
+                fprintf(depfile, " %s", fullname);
+
         if (fullnamep)
                 *fullnamep = fullname;
         else
diff --git a/scripts/dtc/srcpos.h b/scripts/dtc/srcpos.h
index bd7966e56a53..ce980cafe588 100644
--- a/scripts/dtc/srcpos.h
+++ b/scripts/dtc/srcpos.h
@@ -30,6 +30,7 @@ struct srcfile_state {
         struct srcfile_state *prev;
 };
 
+extern FILE *depfile; /* = NULL */
 extern struct srcfile_state *current_srcfile; /* = NULL */
 
 FILE *srcfile_relative_open(const char *fname, char **fullnamep);
diff --git a/scripts/genksyms/Makefile b/scripts/genksyms/Makefile
index a5510903e874..aca33b98bf63 100644
--- a/scripts/genksyms/Makefile
+++ b/scripts/genksyms/Makefile
@@ -11,3 +11,4 @@ HOSTCFLAGS_lex.lex.o := -I$(src)
 # dependencies on generated files need to be listed explicitly
 $(obj)/lex.lex.o: $(obj)/keywords.hash.c $(obj)/parse.tab.h
 
+clean-files     := keywords.hash.c lex.lex.c parse.tab.c parse.tab.h
diff --git a/scripts/get_maintainer.pl b/scripts/get_maintainer.pl
index 4594f3341051..f32a04c4c5bc 100755
--- a/scripts/get_maintainer.pl
+++ b/scripts/get_maintainer.pl
@@ -95,7 +95,7 @@ my %VCS_cmds_git = (
     "execute_cmd" => \&git_execute_cmd,
     "available" => '(which("git") ne "") && (-d ".git")',
     "find_signers_cmd" =>
-        "git log --no-color --since=\$email_git_since " .
+        "git log --no-color --follow --since=\$email_git_since " .
             '--format="GitCommit: %H%n' .
                       'GitAuthor: %an <%ae>%n' .
                       'GitDate: %aD%n' .
diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index 914833d99b06..79662658fb91 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -50,9 +50,8 @@ localyesconfig localmodconfig: $(obj)/streamline_config.pl $(obj)/conf
 
 # Create new linux.pot file
 # Adjust charset to UTF-8 in .po file to accept UTF-8 in Kconfig files
-# The symlink is used to repair a deficiency in arch/um
 update-po-config: $(obj)/kxgettext $(obj)/gconf.glade.h
-        $(Q)echo "  GEN config"
+        $(Q)echo "  GEN     config.pot"
         $(Q)xgettext --default-domain=linux                         \
             --add-comments --keyword=_ --keyword=N_                 \
             --from-code=UTF-8                                       \
@@ -63,10 +62,11 @@ update-po-config: $(obj)/kxgettext $(obj)/gconf.glade.h
         $(Q)(for i in `ls $(srctree)/arch/*/Kconfig      \
             $(srctree)/arch/*/um/Kconfig`;               \
             do                                           \
-                echo "  GEN $$i";                        \
+                echo "  GEN     $$i";                    \
                 $(obj)/kxgettext $$i                     \
                      >> $(obj)/config.pot;               \
             done )
+        $(Q)echo "  GEN     linux.pot"
         $(Q)msguniq --sort-by-file --to-code=UTF-8 $(obj)/config.pot \
             --output $(obj)/linux.pot
         $(Q)rm -f $(obj)/config.pot
diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index 5a58965d8800..7c7a5a6cc3f5 100644
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -464,7 +464,7 @@ kconfig_print_comment(FILE *fp, const char *value, void *arg)
                 fprintf(fp, "#");
                 if (l) {
                         fprintf(fp, " ");
-                        fwrite(p, l, 1, fp);
+                        xfwrite(p, l, 1, fp);
                         p += l;
                 }
                 fprintf(fp, "\n");
@@ -537,7 +537,7 @@ header_print_comment(FILE *fp, const char *value, void *arg)
                 fprintf(fp, " *");
                 if (l) {
                         fprintf(fp, " ");
-                        fwrite(p, l, 1, fp);
+                        xfwrite(p, l, 1, fp);
                         p += l;
                 }
                 fprintf(fp, "\n");
diff --git a/scripts/kconfig/expr.h b/scripts/kconfig/expr.h
index 80fce57080cc..d4ecce8bc3a6 100644
--- a/scripts/kconfig/expr.h
+++ b/scripts/kconfig/expr.h
@@ -10,6 +10,7 @@
 extern "C" {
 #endif
 
+#include <assert.h>
 #include <stdio.h>
 #ifndef __cplusplus
 #include <stdbool.h>
diff --git a/scripts/kconfig/gconf.c b/scripts/kconfig/gconf.c
index 9f4438027df4..adc230638c5b 100644
--- a/scripts/kconfig/gconf.c
+++ b/scripts/kconfig/gconf.c
@@ -683,7 +683,7 @@ void on_introduction1_activate(GtkMenuItem * menuitem, gpointer user_data)
         dialog = gtk_message_dialog_new(GTK_WINDOW(main_wnd),
                                         GTK_DIALOG_DESTROY_WITH_PARENT,
                                         GTK_MESSAGE_INFO,
-                                        GTK_BUTTONS_CLOSE, intro_text);
+                                        GTK_BUTTONS_CLOSE, "%s", intro_text);
         g_signal_connect_swapped(GTK_OBJECT(dialog), "response",
                                  G_CALLBACK(gtk_widget_destroy),
                                  GTK_OBJECT(dialog));
@@ -701,7 +701,7 @@ void on_about1_activate(GtkMenuItem * menuitem, gpointer user_data)
         dialog = gtk_message_dialog_new(GTK_WINDOW(main_wnd),
                                         GTK_DIALOG_DESTROY_WITH_PARENT,
                                         GTK_MESSAGE_INFO,
-                                        GTK_BUTTONS_CLOSE, about_text);
+                                        GTK_BUTTONS_CLOSE, "%s", about_text);
         g_signal_connect_swapped(GTK_OBJECT(dialog), "response",
                                  G_CALLBACK(gtk_widget_destroy),
                                  GTK_OBJECT(dialog));
@@ -720,7 +720,7 @@ void on_license1_activate(GtkMenuItem * menuitem, gpointer user_data)
         dialog = gtk_message_dialog_new(GTK_WINDOW(main_wnd),
                                         GTK_DIALOG_DESTROY_WITH_PARENT,
                                         GTK_MESSAGE_INFO,
-                                        GTK_BUTTONS_CLOSE, license_text);
+                                        GTK_BUTTONS_CLOSE, "%s", license_text);
         g_signal_connect_swapped(GTK_OBJECT(dialog), "response",
                                  G_CALLBACK(gtk_widget_destroy),
                                  GTK_OBJECT(dialog));
@@ -830,7 +830,7 @@ static void renderer_edited(GtkCellRendererText * cell,
 static void change_sym_value(struct menu *menu, gint col)
 {
         struct symbol *sym = menu->sym;
-        tristate oldval, newval;
+        tristate newval;
 
         if (!sym)
                 return;
@@ -847,7 +847,6 @@ static void change_sym_value(struct menu *menu, gint col)
         switch (sym_get_type(sym)) {
         case S_BOOLEAN:
         case S_TRISTATE:
-                oldval = sym_get_tristate_value(sym);
                 if (!sym_tristate_within_range(sym, newval))
                         newval = yes;
                 sym_set_tristate_value(sym, newval);
@@ -1278,7 +1277,6 @@ static void update_tree(struct menu *src, GtkTreeIter * dst)
         gboolean valid;
         GtkTreeIter *sibling;
         struct symbol *sym;
-        struct property *prop;
         struct menu *menu1, *menu2;
 
         if (src == &rootmenu)
@@ -1287,7 +1285,6 @@ static void update_tree(struct menu *src, GtkTreeIter * dst)
         valid = gtk_tree_model_iter_children(model2, child2, dst);
         for (child1 = src->list; child1; child1 = child1->next) {
 
-                prop = child1->prompt;
                 sym = child1->sym;
 
               reparse:
diff --git a/scripts/kconfig/lkc.h b/scripts/kconfig/lkc.h
index b633bdb9f3d4..c18f2bd9c095 100644
--- a/scripts/kconfig/lkc.h
+++ b/scripts/kconfig/lkc.h
@@ -90,8 +90,10 @@ struct conf_printer {
 /* confdata.c and expr.c */
 static inline void xfwrite(const void *str, size_t len, size_t count, FILE *out)
 {
-        if (fwrite(str, len, count, out) < count)
-                fprintf(stderr, "\nError in writing or end of file.\n");
+        assert(len != 0);
+
+        if (fwrite(str, len, count, out) != count)
+                fprintf(stderr, "Error in writing or end of file.\n");
 }
 
 /* menu.c */
diff --git a/scripts/kconfig/mconf.c b/scripts/kconfig/mconf.c
index 19e200d91120..2c6286c0bc1a 100644
--- a/scripts/kconfig/mconf.c
+++ b/scripts/kconfig/mconf.c
@@ -830,6 +830,8 @@ static int handle_exit(void)
                 fprintf(stderr, _("\n\n"
                                   "Your configuration changes were NOT saved."
                                   "\n\n"));
+                if (res != KEY_ESC)
+                        res = 0;
         }
 
         return res;
diff --git a/scripts/kconfig/merge_config.sh b/scripts/kconfig/merge_config.sh
new file mode 100644
index 000000000000..ceadf0e150cf
--- /dev/null
+++ b/scripts/kconfig/merge_config.sh
@@ -0,0 +1,117 @@
+#!/bin/sh
+#  merge_config.sh - Takes a list of config fragment values, and merges
+#  them one by one. Provides warnings on overridden values, and specified
+#  values that did not make it to the resulting .config file (due to missed
+#  dependencies or config symbol removal).
+#
+#  Portions reused from kconf_check and generate_cfg:
+#  http://git.yoctoproject.org/cgit/cgit.cgi/yocto-kernel-tools/tree/tools/kconf_check
+#  http://git.yoctoproject.org/cgit/cgit.cgi/yocto-kernel-tools/tree/tools/generate_cfg
+#
+#  Copyright (c) 2009-2010 Wind River Systems, Inc.
+#  Copyright 2011 Linaro
+#
+#  This program is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License version 2 as
+#  published by the Free Software Foundation.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+#  See the GNU General Public License for more details.
+
+clean_up() {
+        rm -f $TMP_FILE
+        exit
+}
+trap clean_up HUP INT TERM
+
+usage() {
+        echo "Usage: $0 [OPTIONS] [CONFIG [...]]"
+        echo "  -h    display this help text"
+        echo "  -m    only merge the fragments, do not execute the make command"
+        echo "  -n    use allnoconfig instead of alldefconfig"
+}
+
+MAKE=true
+ALLTARGET=alldefconfig
+
+while true; do
+        case $1 in
+        "-n")
+                ALLTARGET=allnoconfig
+                shift
+                continue
+                ;;
+        "-m")
+                MAKE=false
+                shift
+                continue
+                ;;
+        "-h")
+                usage
+                exit
+                ;;
+        *)
+                break
+                ;;
+        esac
+done
+
+
+
+MERGE_LIST=$*
+SED_CONFIG_EXP="s/^\(# \)\{0,1\}\(CONFIG_[a-zA-Z0-9_]*\)[= ].*/\2/p"
+TMP_FILE=$(mktemp ./.tmp.config.XXXXXXXXXX)
+
+# Merge files, printing warnings on overrided values
+for MERGE_FILE in $MERGE_LIST ; do
+        echo "Merging $MERGE_FILE"
+        CFG_LIST=$(sed -n "$SED_CONFIG_EXP" $MERGE_FILE)
+
+        for CFG in $CFG_LIST ; do
+                grep -q -w $CFG $TMP_FILE
+                if [ $? -eq 0 ] ; then
+                        PREV_VAL=$(grep -w $CFG $TMP_FILE)
+                        NEW_VAL=$(grep -w $CFG $MERGE_FILE)
+                        if [ "x$PREV_VAL" != "x$NEW_VAL" ] ; then
+                        echo Value of $CFG is redefined by fragment $MERGE_FILE:
+                        echo Previous  value: $PREV_VAL
+                        echo New value:       $NEW_VAL
+                        echo
+                        fi
+                        sed -i "/$CFG[ =]/d" $TMP_FILE
+                fi
+        done
+        cat $MERGE_FILE >> $TMP_FILE
+done
+
+if [ "$MAKE" = "false" ]; then
+        cp $TMP_FILE .config
+        echo "#"
+        echo "# merged configuration written to .config (needs make)"
+        echo "#"
+        clean_up
+        exit
+fi
+
+# Use the merged file as the starting point for:
+# alldefconfig: Fills in any missing symbols with Kconfig default
+# allnoconfig: Fills in any missing symbols with # CONFIG_* is not set
+make KCONFIG_ALLCONFIG=$TMP_FILE $ALLTARGET
+
+
+# Check all specified config values took (might have missed-dependency issues)
+for CFG in $(sed -n "$SED_CONFIG_EXP" $TMP_FILE); do
+
+        REQUESTED_VAL=$(grep -w -e "$CFG" $TMP_FILE)
+        ACTUAL_VAL=$(grep -w -e "$CFG" .config)
+        if [ "x$REQUESTED_VAL" != "x$ACTUAL_VAL" ] ; then
+                echo "Value requested for $CFG not in final .config"
+                echo "Requested value:  $REQUESTED_VAL"
+                echo "Actual value:     $ACTUAL_VAL"
+                echo ""
+        fi
+done
+
+clean_up
diff --git a/scripts/kconfig/streamline_config.pl b/scripts/kconfig/streamline_config.pl
index ec7afce4c88d..bccf07ddd0b6 100644
--- a/scripts/kconfig/streamline_config.pl
+++ b/scripts/kconfig/streamline_config.pl
@@ -250,33 +250,61 @@ if ($kconfig) {
     read_kconfig($kconfig);
 }
 
+sub convert_vars {
+    my ($line, %vars) = @_;
+
+    my $process = "";
+
+    while ($line =~ s/^(.*?)(\$\((.*?)\))//) {
+        my $start = $1;
+        my $variable = $2;
+        my $var = $3;
+
+        if (defined($vars{$var})) {
+            $process .= $start . $vars{$var};
+        } else {
+            $process .= $start . $variable;
+        }
+    }
+
+    $process .= $line;
+
+    return $process;
+}
+
 # Read all Makefiles to map the configs to the objects
 foreach my $makefile (@makefiles) {
 
-    my $cont = 0;
+    my $line = "";
+    my %make_vars;
 
     open(MIN,$makefile) || die "Can't open $makefile";
     while (<MIN>) {
+        # if this line ends with a backslash, continue
+        chomp;
+        if (/^(.*)\\$/) {
+            $line .= $1;
+            next;
+        }
+
+        $line .= $_;
+        $_ = $line;
+        $line = "";
+
         my $objs;
 
-        # is this a line after a line with a backslash?
-        if ($cont && /(\S.*)$/) {
-            $objs = $1;
-        }
-        $cont = 0;
+        $_ = convert_vars($_, %make_vars);
 
         # collect objects after obj-$(CONFIG_FOO_BAR)
         if (/obj-\$\((CONFIG_[^\)]*)\)\s*[+:]?=\s*(.*)/) {
             $var = $1;
             $objs = $2;
+
+        # check if variables are set
+        } elsif (/^\s*(\S+)\s*[:]?=\s*(.*\S)/) {
+            $make_vars{$1} = $2;
         }
         if (defined($objs)) {
-            # test if the line ends with a backslash
-            if ($objs =~ m,(.*)\\$,) {
-                $objs = $1;
-                $cont = 1;
-            }
-
             foreach my $obj (split /\s+/,$objs) {
                 $obj =~ s/-/_/g;
                 if ($obj =~ /(.*)\.o$/) {
diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
index f936d1fa969d..c0e14b3f2306 100644
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -28,6 +28,7 @@ typedef Elf64_Addr	kernel_ulong_t;
 #endif
 
 #include <ctype.h>
+#include <stdbool.h>
 
 typedef uint32_t        __u32;
 typedef uint16_t        __u16;
@@ -38,6 +39,35 @@ typedef unsigned char	__u8;
  * we handle those differences explicitly below */
 #include "../../include/linux/mod_devicetable.h"
 
+/* This array collects all instances that use the generic do_table */
+struct devtable {
+        const char *device_id; /* name of table, __mod_<name>_device_table. */
+        unsigned long id_size;
+        void *function;
+};
+
+/* We construct a table of pointers in an ELF section (pointers generally
+ * go unpadded by gcc).  ld creates boundary syms for us. */
+extern struct devtable *__start___devtable[], *__stop___devtable[];
+#define ___cat(a,b) a ## b
+#define __cat(a,b) ___cat(a,b)
+
+#if __GNUC__ == 3 && __GNUC_MINOR__ < 3
+# define __used                 __attribute__((__unused__))
+#else
+# define __used                 __attribute__((__used__))
+#endif
+
+/* Add a table entry.  We test function type matches while we're here. */
+#define ADD_TO_DEVTABLE(device_id, type, function) \
+        static struct devtable __cat(devtable,__LINE__) = {     \
+                device_id + 0*sizeof((function)((const char *)NULL,     \
+                                                (type *)NULL,           \
+                                                (char *)NULL)),         \
+                sizeof(type), (function) };                             \
+        static struct devtable *__attribute__((section("__devtable"))) \
+                __used __cat(devtable_ptr,__LINE__) = &__cat(devtable,__LINE__)
+
 #define ADD(str, sep, cond, field)                              \
 do {                                                            \
         strcat(str, sep);                                       \
@@ -289,6 +319,7 @@ static int do_hid_entry(const char *filename,
 
         return 1;
 }
+ADD_TO_DEVTABLE("hid", struct hid_device_id, do_hid_entry);
 
 /* Looks like: ieee1394:venNmoNspNverN */
 static int do_ieee1394_entry(const char *filename,
@@ -313,6 +344,7 @@ static int do_ieee1394_entry(const char *filename,
         add_wildcard(alias);
         return 1;
 }
+ADD_TO_DEVTABLE("ieee1394", struct ieee1394_device_id, do_ieee1394_entry);
 
 /* Looks like: pci:vNdNsvNsdNbcNscNiN. */
 static int do_pci_entry(const char *filename,
@@ -356,6 +388,7 @@ static int do_pci_entry(const char *filename,
         add_wildcard(alias);
         return 1;
 }
+ADD_TO_DEVTABLE("pci", struct pci_device_id, do_pci_entry);
 
 /* looks like: "ccw:tNmNdtNdmN" */
 static int do_ccw_entry(const char *filename,
@@ -379,6 +412,7 @@ static int do_ccw_entry(const char *filename,
         add_wildcard(alias);
         return 1;
 }
+ADD_TO_DEVTABLE("ccw", struct ccw_device_id, do_ccw_entry);
 
 /* looks like: "ap:tN" */
 static int do_ap_entry(const char *filename,
@@ -387,6 +421,7 @@ static int do_ap_entry(const char *filename,
         sprintf(alias, "ap:t%02X*", id->dev_type);
         return 1;
 }
+ADD_TO_DEVTABLE("ap", struct ap_device_id, do_ap_entry);
 
 /* looks like: "css:tN" */
 static int do_css_entry(const char *filename,
@@ -395,6 +430,7 @@ static int do_css_entry(const char *filename,
         sprintf(alias, "css:t%01X", id->type);
         return 1;
 }
+ADD_TO_DEVTABLE("css", struct css_device_id, do_css_entry);
 
 /* Looks like: "serio:tyNprNidNexN" */
 static int do_serio_entry(const char *filename,
@@ -414,6 +450,7 @@ static int do_serio_entry(const char *filename,
         add_wildcard(alias);
         return 1;
 }
+ADD_TO_DEVTABLE("serio", struct serio_device_id, do_serio_entry);
 
 /* looks like: "acpi:ACPI0003 or acpi:PNP0C0B" or "acpi:LNXVIDEO" */
 static int do_acpi_entry(const char *filename,
@@ -422,6 +459,7 @@ static int do_acpi_entry(const char *filename,
         sprintf(alias, "acpi*:%s:*", id->id);
         return 1;
 }
+ADD_TO_DEVTABLE("acpi", struct acpi_device_id, do_acpi_entry);
 
 /* looks like: "pnp:dD" */
 static void do_pnp_device_entry(void *symval, unsigned long size,
@@ -544,8 +582,7 @@ static int do_pcmcia_entry(const char *filename,
         add_wildcard(alias);
        return 1;
 }
-
-
+ADD_TO_DEVTABLE("pcmcia", struct pcmcia_device_id, do_pcmcia_entry);
 
 static int do_of_entry (const char *filename, struct of_device_id *of, char *alias)
 {
@@ -568,6 +605,7 @@ static int do_of_entry (const char *filename, struct of_device_id *of, char *ali
     add_wildcard(alias);
     return 1;
 }
+ADD_TO_DEVTABLE("of", struct of_device_id, do_of_entry);
 
 static int do_vio_entry(const char *filename, struct vio_device_id *vio,
                 char *alias)
@@ -585,6 +623,7 @@ static int do_vio_entry(const char *filename, struct vio_device_id *vio,
         add_wildcard(alias);
         return 1;
 }
+ADD_TO_DEVTABLE("vio", struct vio_device_id, do_vio_entry);
 
 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
 
@@ -640,6 +679,7 @@ static int do_input_entry(const char *filename, struct input_device_id *id,
                 do_input(alias, id->swbit, 0, INPUT_DEVICE_ID_SW_MAX);
         return 1;
 }
+ADD_TO_DEVTABLE("input", struct input_device_id, do_input_entry);
 
 static int do_eisa_entry(const char *filename, struct eisa_device_id *eisa,
                 char *alias)
@@ -650,6 +690,7 @@ static int do_eisa_entry(const char *filename, struct eisa_device_id *eisa,
                 strcat(alias, "*");
         return 1;
 }
+ADD_TO_DEVTABLE("eisa", struct eisa_device_id, do_eisa_entry);
 
 /* Looks like: parisc:tNhvNrevNsvN */
 static int do_parisc_entry(const char *filename, struct parisc_device_id *id,
@@ -669,6 +710,7 @@ static int do_parisc_entry(const char *filename, struct parisc_device_id *id,
         add_wildcard(alias);
         return 1;
 }
+ADD_TO_DEVTABLE("parisc", struct parisc_device_id, do_parisc_entry);
 
 /* Looks like: sdio:cNvNdN. */
 static int do_sdio_entry(const char *filename,
@@ -685,6 +727,7 @@ static int do_sdio_entry(const char *filename,
         add_wildcard(alias);
         return 1;
 }
+ADD_TO_DEVTABLE("sdio", struct sdio_device_id, do_sdio_entry);
 
 /* Looks like: ssb:vNidNrevN. */
 static int do_ssb_entry(const char *filename,
@@ -701,6 +744,7 @@ static int do_ssb_entry(const char *filename,
         add_wildcard(alias);
         return 1;
 }
+ADD_TO_DEVTABLE("ssb", struct ssb_device_id, do_ssb_entry);
 
 /* Looks like: bcma:mNidNrevNclN. */
 static int do_bcma_entry(const char *filename,
@@ -719,6 +763,7 @@ static int do_bcma_entry(const char *filename,
         add_wildcard(alias);
         return 1;
 }
+ADD_TO_DEVTABLE("bcma", struct bcma_device_id, do_bcma_entry);
 
 /* Looks like: virtio:dNvN */
 static int do_virtio_entry(const char *filename, struct virtio_device_id *id,
@@ -734,6 +779,7 @@ static int do_virtio_entry(const char *filename, struct virtio_device_id *id,
         add_wildcard(alias);
         return 1;
 }
+ADD_TO_DEVTABLE("virtio", struct virtio_device_id, do_virtio_entry);
 
 /*
  * Looks like: vmbus:guid
@@ -755,6 +801,7 @@ static int do_vmbus_entry(const char *filename, struct hv_vmbus_device_id *id,
 
         return 1;
 }
+ADD_TO_DEVTABLE("vmbus", struct hv_vmbus_device_id, do_vmbus_entry);
 
 /* Looks like: i2c:S */
 static int do_i2c_entry(const char *filename, struct i2c_device_id *id,
@@ -764,6 +811,7 @@ static int do_i2c_entry(const char *filename, struct i2c_device_id *id,
 
         return 1;
 }
+ADD_TO_DEVTABLE("i2c", struct i2c_device_id, do_i2c_entry);
 
 /* Looks like: spi:S */
 static int do_spi_entry(const char *filename, struct spi_device_id *id,
@@ -773,6 +821,17 @@ static int do_spi_entry(const char *filename, struct spi_device_id *id,
 
         return 1;
 }
+ADD_TO_DEVTABLE("spi", struct spi_device_id, do_spi_entry);
+
+/* Looks like: mcp:S */
+static int do_mcp_entry(const char *filename, struct mcp_device_id *id,
+                        char *alias)
+{
+        sprintf(alias, MCP_MODULE_PREFIX "%s", id->name);
+
+        return 1;
+}
+ADD_TO_DEVTABLE("mcp", struct mcp_device_id, do_mcp_entry); 
 
 static const struct dmifield {
         const char *prefix;
@@ -827,6 +886,7 @@ static int do_dmi_entry(const char *filename, struct dmi_system_id *id,
         strcat(alias, ":");
         return 1;
 }
+ADD_TO_DEVTABLE("dmi", struct dmi_system_id, do_dmi_entry);
 
 static int do_platform_entry(const char *filename,
                              struct platform_device_id *id, char *alias)
@@ -834,6 +894,7 @@ static int do_platform_entry(const char *filename,
         sprintf(alias, PLATFORM_MODULE_PREFIX "%s", id->name);
         return 1;
 }
+ADD_TO_DEVTABLE("platform", struct platform_device_id, do_platform_entry);
 
 static int do_mdio_entry(const char *filename,
                          struct mdio_device_id *id, char *alias)
@@ -856,6 +917,7 @@ static int do_mdio_entry(const char *filename,
 
         return 1;
 }
+ADD_TO_DEVTABLE("mdio", struct mdio_device_id, do_mdio_entry);
 
 /* Looks like: zorro:iN. */
 static int do_zorro_entry(const char *filename, struct zorro_device_id *id,
@@ -866,6 +928,7 @@ static int do_zorro_entry(const char *filename, struct zorro_device_id *id,
         ADD(alias, "i", id->id != ZORRO_WILDCARD, id->id);
         return 1;
 }
+ADD_TO_DEVTABLE("zorro", struct zorro_device_id, do_zorro_entry);
 
 /* looks like: "pnp:dD" */
 static int do_isapnp_entry(const char *filename,
@@ -879,16 +942,84 @@ static int do_isapnp_entry(const char *filename,
                 (id->function >> 12) & 0x0f, (id->function >> 8) & 0x0f);
         return 1;
 }
+ADD_TO_DEVTABLE("isa", struct isapnp_device_id, do_isapnp_entry);
 
-/* Ignore any prefix, eg. some architectures prepend _ */
-static inline int sym_is(const char *symbol, const char *name)
+/*
+ * Append a match expression for a single masked hex digit.
+ * outp points to a pointer to the character at which to append.
+ *      *outp is updated on return to point just after the appended text,
+ *      to facilitate further appending.
+ */
+static void append_nibble_mask(char **outp,
+                               unsigned int nibble, unsigned int mask)
 {
-        const char *match;
+        char *p = *outp;
+        unsigned int i;
 
-        match = strstr(symbol, name);
-        if (!match)
-                return 0;
-        return match[strlen(name)] == '\0';
+        switch (mask) {
+        case 0:
+                *p++ = '?';
+                break;
+
+        case 0xf:
+                p += sprintf(p, "%X",  nibble);
+                break;
+
+        default:
+                /*
+                 * Dumbly emit a match pattern for all possible matching
+                 * digits.  This could be improved in some cases using ranges,
+                 * but it has the advantage of being trivially correct, and is
+                 * often optimal.
+                 */
+                *p++ = '[';
+                for (i = 0; i < 0x10; i++)
+                        if ((i & mask) == nibble)
+                                p += sprintf(p, "%X", i);
+                *p++ = ']';
+        }
+
+        /* Ensure that the string remains NUL-terminated: */
+        *p = '\0';
+
+        /* Advance the caller's end-of-string pointer: */
+        *outp = p;
+}
+
+/*
+ * looks like: "amba:dN"
+ *
+ * N is exactly 8 digits, where each is an upper-case hex digit, or
+ *      a ? or [] pattern matching exactly one digit.
+ */
+static int do_amba_entry(const char *filename,
+                         struct amba_id *id, char *alias)
+{
+        unsigned int digit;
+        char *p = alias;
+
+        if ((id->id & id->mask) != id->id)
+                fatal("%s: Masked-off bit(s) of AMBA device ID are non-zero: "
+                      "id=0x%08X, mask=0x%08X.  Please fix this driver.\n",
+                      filename, id->id, id->mask);
+
+        p += sprintf(alias, "amba:d");
+        for (digit = 0; digit < 8; digit++)
+                append_nibble_mask(&p,
+                                   (id->id >> (4 * (7 - digit))) & 0xf,
+                                   (id->mask >> (4 * (7 - digit))) & 0xf);
+
+        return 1;
+}
+ADD_TO_DEVTABLE("amba", struct amba_id, do_amba_entry);
+
+/* Does namelen bytes of name exactly match the symbol? */
+static bool sym_is(const char *name, unsigned namelen, const char *symbol)
+{
+        if (namelen != strlen(symbol))
+                return false;
+
+        return memcmp(name, symbol, namelen) == 0;
 }
 
 static void do_table(void *symval, unsigned long size,
@@ -921,11 +1052,25 @@ void handle_moddevtable(struct module *mod, struct elf_info *info,
 {
         void *symval;
         char *zeros = NULL;
+        const char *name;
+        unsigned int namelen;
 
         /* We're looking for a section relative symbol */
         if (!sym->st_shndx || get_secindex(info, sym) >= info->num_sections)
                 return;
 
+        /* All our symbols are of form <prefix>__mod_XXX_device_table. */
+        name = strstr(symname, "__mod_");
+        if (!name)
+                return;
+        name += strlen("__mod_");
+        namelen = strlen(name);
+        if (namelen < strlen("_device_table"))
+                return;
+        if (strcmp(name + namelen - strlen("_device_table"), "_device_table"))
+                return;
+        namelen -= strlen("_device_table");
+
         /* Handle all-NULL symbols allocated into .bss */
         if (info->sechdrs[get_secindex(info, sym)].sh_type & SHT_NOBITS) {
                 zeros = calloc(1, sym->st_size);
@@ -936,117 +1081,24 @@ void handle_moddevtable(struct module *mod, struct elf_info *info,
                         + sym->st_value;
         }
 
-        if (sym_is(symname, "__mod_pci_device_table"))
-                do_table(symval, sym->st_size,
-                         sizeof(struct pci_device_id), "pci",
-                         do_pci_entry, mod);
-        else if (sym_is(symname, "__mod_usb_device_table"))
-                /* special case to handle bcdDevice ranges */
+        /* First handle the "special" cases */
+        if (sym_is(name, namelen, "usb"))
                 do_usb_table(symval, sym->st_size, mod);
-        else if (sym_is(symname, "__mod_hid_device_table"))
-                do_table(symval, sym->st_size,
-                         sizeof(struct hid_device_id), "hid",
-                         do_hid_entry, mod);
-        else if (sym_is(symname, "__mod_ieee1394_device_table"))
-                do_table(symval, sym->st_size,
-                         sizeof(struct ieee1394_device_id), "ieee1394",
-                         do_ieee1394_entry, mod);
-        else if (sym_is(symname, "__mod_ccw_device_table"))
-                do_table(symval, sym->st_size,
-                         sizeof(struct ccw_device_id), "ccw",
-                         do_ccw_entry, mod);
-        else if (sym_is(symname, "__mod_ap_device_table"))
-                do_table(symval, sym->st_size,
-                         sizeof(struct ap_device_id), "ap",
-                         do_ap_entry, mod);
-        else if (sym_is(symname, "__mod_css_device_table"))
-                do_table(symval, sym->st_size,
-                         sizeof(struct css_device_id), "css",
-                         do_css_entry, mod);
-        else if (sym_is(symname, "__mod_serio_device_table"))
-                do_table(symval, sym->st_size,
-                         sizeof(struct serio_device_id), "serio",
-                         do_serio_entry, mod);
-        else if (sym_is(symname, "__mod_acpi_device_table"))
-                do_table(symval, sym->st_size,
-                         sizeof(struct acpi_device_id), "acpi",
-                         do_acpi_entry, mod);
-        else if (sym_is(symname, "__mod_pnp_device_table"))
+        else if (sym_is(name, namelen, "pnp"))
                 do_pnp_device_entry(symval, sym->st_size, mod);
-        else if (sym_is(symname, "__mod_pnp_card_device_table"))
+        else if (sym_is(name, namelen, "pnp_card"))
                 do_pnp_card_entries(symval, sym->st_size, mod);
-        else if (sym_is(symname, "__mod_pcmcia_device_table"))
-                do_table(symval, sym->st_size,
-                         sizeof(struct pcmcia_device_id), "pcmcia",
-                         do_pcmcia_entry, mod);
-        else if (sym_is(symname, "__mod_of_device_table"))
-                do_table(symval, sym->st_size,
-                         sizeof(struct of_device_id), "of",
-                         do_of_entry, mod);
-        else if (sym_is(symname, "__mod_vio_device_table"))
-                do_table(symval, sym->st_size,
-                         sizeof(struct vio_device_id), "vio",
-                         do_vio_entry, mod);
-        else if (sym_is(symname, "__mod_input_device_table"))
-                do_table(symval, sym->st_size,
-                         sizeof(struct input_device_id), "input",
-                         do_input_entry, mod);
-        else if (sym_is(symname, "__mod_eisa_device_table"))
-                do_table(symval, sym->st_size,
-                         sizeof(struct eisa_device_id), "eisa",
-                         do_eisa_entry, mod);
-        else if (sym_is(symname, "__mod_parisc_device_table"))
-                do_table(symval, sym->st_size,
-                         sizeof(struct parisc_device_id), "parisc",
-                         do_parisc_entry, mod);
-        else if (sym_is(symname, "__mod_sdio_device_table"))
-                do_table(symval, sym->st_size,
-                         sizeof(struct sdio_device_id), "sdio",
-                         do_sdio_entry, mod);
-        else if (sym_is(symname, "__mod_ssb_device_table"))
-                do_table(symval, sym->st_size,
-                         sizeof(struct ssb_device_id), "ssb",
-                         do_ssb_entry, mod);
-        else if (sym_is(symname, "__mod_bcma_device_table"))
-                do_table(symval, sym->st_size,
-                         sizeof(struct bcma_device_id), "bcma",
-                         do_bcma_entry, mod);
-        else if (sym_is(symname, "__mod_virtio_device_table"))
-                do_table(symval, sym->st_size,
-                         sizeof(struct virtio_device_id), "virtio",
-                         do_virtio_entry, mod);
-        else if (sym_is(symname, "__mod_vmbus_device_table"))
-                do_table(symval, sym->st_size,
-                         sizeof(struct hv_vmbus_device_id), "vmbus",
-                         do_vmbus_entry, mod);
-        else if (sym_is(symname, "__mod_i2c_device_table"))
-                do_table(symval, sym->st_size,
-                         sizeof(struct i2c_device_id), "i2c",
-                         do_i2c_entry, mod);
-        else if (sym_is(symname, "__mod_spi_device_table"))
-                do_table(symval, sym->st_size,
-                         sizeof(struct spi_device_id), "spi",
-                         do_spi_entry, mod);
-        else if (sym_is(symname, "__mod_dmi_device_table"))
-                do_table(symval, sym->st_size,
-                         sizeof(struct dmi_system_id), "dmi",
-                         do_dmi_entry, mod);
-        else if (sym_is(symname, "__mod_platform_device_table"))
-                do_table(symval, sym->st_size,
-                         sizeof(struct platform_device_id), "platform",
-                         do_platform_entry, mod);
-        else if (sym_is(symname, "__mod_mdio_device_table"))
-                do_table(symval, sym->st_size,
-                         sizeof(struct mdio_device_id), "mdio",
-                         do_mdio_entry, mod);
-        else if (sym_is(symname, "__mod_zorro_device_table"))
-                do_table(symval, sym->st_size,
-                         sizeof(struct zorro_device_id), "zorro",
-                         do_zorro_entry, mod);
-        else if (sym_is(symname, "__mod_isapnp_device_table"))
-                do_table(symval, sym->st_size,
-                        sizeof(struct isapnp_device_id), "isa",
-                        do_isapnp_entry, mod);
+        else {
+                struct devtable **p;
+
+                for (p = __start___devtable; p < __stop___devtable; p++) {
+                        if (sym_is(name, namelen, (*p)->device_id)) {
+                                do_table(symval, sym->st_size, (*p)->id_size,
+                                         (*p)->device_id, (*p)->function, mod);
+                                break;
+                        }
+                }
+        }
         free(zeros);
 }
 
diff --git a/scripts/package/Makefile b/scripts/package/Makefile
index bc6aa003860e..87bf08076b11 100644
--- a/scripts/package/Makefile
+++ b/scripts/package/Makefile
@@ -141,7 +141,7 @@ perf-%pkg: FORCE
 help: FORCE
         @echo '  rpm-pkg             - Build both source and binary RPM kernel packages'
         @echo '  binrpm-pkg          - Build only the binary kernel package'
-        @echo '  deb-pkg             - Build the kernel as an deb package'
+        @echo '  deb-pkg             - Build the kernel as a deb package'
         @echo '  tar-pkg             - Build the kernel as an uncompressed tarball'
         @echo '  targz-pkg           - Build the kernel as a gzip compressed tarball'
         @echo '  tarbz2-pkg          - Build the kernel as a bzip2 compressed tarball'
diff --git a/scripts/recordmcount.h b/scripts/recordmcount.h
index f40a6af6bf40..54e35c1e5948 100644
--- a/scripts/recordmcount.h
+++ b/scripts/recordmcount.h
@@ -462,7 +462,7 @@ __has_rel_mcount(Elf_Shdr const *const relhdr,  /* is SHT_REL or SHT_RELA */
                 succeed_file();
         }
         if (w(txthdr->sh_type) != SHT_PROGBITS ||
-            !(w(txthdr->sh_flags) & SHF_EXECINSTR))
+            !(_w(txthdr->sh_flags) & SHF_EXECINSTR))
                 return NULL;
         return txtname;
 }
diff --git a/scripts/tags.sh b/scripts/tags.sh
index 38f6617a2cb1..833813a99e7c 100755
--- a/scripts/tags.sh
+++ b/scripts/tags.sh
@@ -132,7 +132,28 @@ exuberant()
         --regex-asm='/^(ENTRY|_GLOBAL)\(([^)]*)\).*/\2/'        \
         --regex-c='/^SYSCALL_DEFINE[[:digit:]]?\(([^,)]*).*/sys_\1/' \
         --regex-c++='/^TRACE_EVENT\(([^,)]*).*/trace_\1/'               \
-        --regex-c++='/^DEFINE_EVENT\([^,)]*, *([^,)]*).*/trace_\1/'
+        --regex-c++='/^DEFINE_EVENT\([^,)]*, *([^,)]*).*/trace_\1/'     \
+        --regex-c++='/PAGEFLAG\(([^,)]*).*/Page\1/'                     \
+        --regex-c++='/PAGEFLAG\(([^,)]*).*/SetPage\1/'                  \
+        --regex-c++='/PAGEFLAG\(([^,)]*).*/ClearPage\1/'                \
+        --regex-c++='/TESTSETFLAG\(([^,)]*).*/TestSetPage\1/'           \
+        --regex-c++='/TESTPAGEFLAG\(([^,)]*).*/Page\1/'                 \
+        --regex-c++='/SETPAGEFLAG\(([^,)]*).*/SetPage\1/'               \
+        --regex-c++='/__SETPAGEFLAG\(([^,)]*).*/__SetPage\1/'           \
+        --regex-c++='/TESTCLEARFLAG\(([^,)]*).*/TestClearPage\1/'       \
+        --regex-c++='/__TESTCLEARFLAG\(([^,)]*).*/TestClearPage\1/'     \
+        --regex-c++='/CLEARPAGEFLAG\(([^,)]*).*/ClearPage\1/'           \
+        --regex-c++='/__CLEARPAGEFLAG\(([^,)]*).*/__ClearPage\1/'       \
+        --regex-c++='/__PAGEFLAG\(([^,)]*).*/__SetPage\1/'              \
+        --regex-c++='/__PAGEFLAG\(([^,)]*).*/__ClearPage\1/'            \
+        --regex-c++='/PAGEFLAG_FALSE\(([^,)]*).*/Page\1/'               \
+        --regex-c++='/TESTSCFLAG\(([^,)]*).*/TestSetPage\1/'            \
+        --regex-c++='/TESTSCFLAG\(([^,)]*).*/TestClearPage\1/'          \
+        --regex-c++='/SETPAGEFLAG_NOOP\(([^,)]*).*/SetPage\1/'          \
+        --regex-c++='/CLEARPAGEFLAG_NOOP\(([^,)]*).*/ClearPage\1/'      \
+        --regex-c++='/__CLEARPAGEFLAG_NOOP\(([^,)]*).*/__ClearPage\1/'  \
+        --regex-c++='/TESTCLEARFLAG_FALSE\(([^,)]*).*/TestClearPage\1/' \
+        --regex-c++='/__TESTCLEARFLAG_FALSE\(([^,)]*).*/__TestClearPage\1/'
 
         all_kconfigs | xargs $1 -a                              \
         --langdef=kconfig --language-force=kconfig              \
@@ -146,6 +167,8 @@ exuberant()
         --langdef=dotconfig --language-force=dotconfig          \
         --regex-dotconfig='/^#?[[:blank:]]*(CONFIG_[[:alnum:]_]+)/\1/'
 
+        # Remove structure forward declarations.
+        LANG=C sed -i -e '/^\([a-zA-Z_][a-zA-Z0-9_]*\)\t.*\t\/\^struct \1;.*\$\/;"\tx$/d' tags
 }
 
 emacs()
@@ -154,7 +177,28 @@ emacs()
         --regex='/^(ENTRY|_GLOBAL)(\([^)]*\)).*/\2/'            \
         --regex='/^SYSCALL_DEFINE[0-9]?(\([^,)]*\).*/sys_\1/'   \
         --regex='/^TRACE_EVENT(\([^,)]*\).*/trace_\1/'          \
-        --regex='/^DEFINE_EVENT([^,)]*, *\([^,)]*\).*/trace_\1/'
+        --regex='/^DEFINE_EVENT([^,)]*, *\([^,)]*\).*/trace_\1/' \
+        --regex='/PAGEFLAG\(([^,)]*).*/Page\1/'                 \
+        --regex='/PAGEFLAG\(([^,)]*).*/SetPage\1/'              \
+        --regex='/PAGEFLAG\(([^,)]*).*/ClearPage\1/'            \
+        --regex='/TESTSETFLAG\(([^,)]*).*/TestSetPage\1/'       \
+        --regex='/TESTPAGEFLAG\(([^,)]*).*/Page\1/'             \
+        --regex='/SETPAGEFLAG\(([^,)]*).*/SetPage\1/'           \
+        --regex='/__SETPAGEFLAG\(([^,)]*).*/__SetPage\1/'       \
+        --regex='/TESTCLEARFLAG\(([^,)]*).*/TestClearPage\1/'   \
+        --regex='/__TESTCLEARFLAG\(([^,)]*).*/TestClearPage\1/' \
+        --regex='/CLEARPAGEFLAG\(([^,)]*).*/ClearPage\1/'       \
+        --regex='/__CLEARPAGEFLAG\(([^,)]*).*/__ClearPage\1/'   \
+        --regex='/__PAGEFLAG\(([^,)]*).*/__SetPage\1/'          \
+        --regex='/__PAGEFLAG\(([^,)]*).*/__ClearPage\1/'        \
+        --regex='/PAGEFLAG_FALSE\(([^,)]*).*/Page\1/'           \
+        --regex='/TESTSCFLAG\(([^,)]*).*/TestSetPage\1/'        \
+        --regex='/TESTSCFLAG\(([^,)]*).*/TestClearPage\1/'      \
+        --regex='/SETPAGEFLAG_NOOP\(([^,)]*).*/SetPage\1/'      \
+        --regex='/CLEARPAGEFLAG_NOOP\(([^,)]*).*/ClearPage\1/'  \
+        --regex='/__CLEARPAGEFLAG_NOOP\(([^,)]*).*/__ClearPage\1/' \
+        --regex='/TESTCLEARFLAG_FALSE\(([^,)]*).*/TestClearPage\1/' \
+        --regex='/__TESTCLEARFLAG_FALSE\(([^,)]*).*/__TestClearPage\1/'
 
         all_kconfigs | xargs $1 -a                              \
         --regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/\3/'