8 files changed, 775 insertions, 55 deletions

diff --git a/scripts/.gitignore b/scripts/.gitignore
index b939fbd01195..09e2406f3b78 100644
--- a/scripts/.gitignore
+++ b/scripts/.gitignore
@@ -1,6 +1,7 @@
 #
 # Generated files
 #
+ihex2fw
 conmakehash
 kallsyms
 pnmtologo
diff --git a/scripts/Makefile b/scripts/Makefile
index aafdf064feef..035182e16afb 100644
--- a/scripts/Makefile
+++ b/scripts/Makefile
@@ -2,11 +2,12 @@
 # scripts contains sources for various helper programs used throughout
 # the kernel for the build process.
 # ---------------------------------------------------------------------------
+# ihex2fw:       Parser/loader for IHEX formatted data
 # kallsyms:      Find all symbols in vmlinux
 # pnmttologo:    Convert pnm files to logo files
-# conmakehash:   Create chartable
 # conmakehash:   Create arrays for initializing the kernel console tables
 
+hostprogs-y                      := ihex2fw
 hostprogs-$(CONFIG_KALLSYMS)     += kallsyms
 hostprogs-$(CONFIG_LOGO)         += pnmtologo
 hostprogs-$(CONFIG_VT)           += conmakehash
diff --git a/scripts/bootgraph.pl b/scripts/bootgraph.pl
index f0af9aa9b243..b0246307aac4 100644
--- a/scripts/bootgraph.pl
+++ b/scripts/bootgraph.pl
@@ -41,11 +41,13 @@ use strict;
 
 my %start;
 my %end;
+my %type;
 my $done = 0;
 my $maxtime = 0;
 my $firsttime = 100;
 my $count = 0;
 my %pids;
+my %pidctr;
 
 while (<>) {
         my $line = $_;
@@ -53,6 +55,7 @@ while (<>) {
                 my $func = $2;
                 if ($done == 0) {
                         $start{$func} = $1;
+                        $type{$func} = 0;
                         if ($1 < $firsttime) {
                                 $firsttime = $1;
                         }
@@ -63,12 +66,40 @@ while (<>) {
                 $count = $count + 1;
         }
 
+        if ($line =~ /([0-9\.]+)\] async_waiting @ ([0-9]+)/) {
+                my $pid = $2;
+                my $func;
+                if (!defined($pidctr{$pid})) {
+                        $func = "wait_" . $pid . "_1";
+                        $pidctr{$pid} = 1;
+                } else {
+                        $pidctr{$pid} = $pidctr{$pid} + 1;
+                        $func = "wait_" . $pid . "_" . $pidctr{$pid};
+                }
+                if ($done == 0) {
+                        $start{$func} = $1;
+                        $type{$func} = 1;
+                        if ($1 < $firsttime) {
+                                $firsttime = $1;
+                        }
+                }
+                $pids{$func} = $pid;
+                $count = $count + 1;
+        }
+
         if ($line =~ /([0-9\.]+)\] initcall ([a-zA-Z0-9\_]+)\+.*returned/) {
                 if ($done == 0) {
                         $end{$2} = $1;
                         $maxtime = $1;
                 }
         }
+
+        if ($line =~ /([0-9\.]+)\] async_continuing @ ([0-9]+)/) {
+                my $pid = $2;
+                my $func =  "wait_" . $pid . "_" . $pidctr{$pid};
+                $end{$func} = $1;
+                $maxtime = $1;
+        }
         if ($line =~ /Write protecting the/) {
                 $done = 1;
         }
@@ -88,7 +119,7 @@ END
 }
 
 print "<?xml version=\"1.0\" standalone=\"no\"?> \n";
-print "<svg width=\"1000\" height=\"100%\" version=\"1.1\" xmlns=\"http://www.w3.org/2000/svg\">\n";
+print "<svg width=\"2000\" height=\"100%\" version=\"1.1\" xmlns=\"http://www.w3.org/2000/svg\">\n";
 
 my @styles;
 
@@ -105,8 +136,11 @@ $styles[9] = "fill:rgb(255,255,128);fill-opacity:0.5;stroke-width:1;stroke:rgb(0
 $styles[10] = "fill:rgb(255,128,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
 $styles[11] = "fill:rgb(128,255,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
 
-my $mult = 950.0 / ($maxtime - $firsttime);
-my $threshold = ($maxtime - $firsttime) / 60.0;
+my $style_wait = "fill:rgb(128,128,128);fill-opacity:0.5;stroke-width:0;stroke:rgb(0,0,0)";
+
+my $mult = 1950.0 / ($maxtime - $firsttime);
+my $threshold2 = ($maxtime - $firsttime) / 120.0;
+my $threshold = $threshold2/10;
 my $stylecounter = 0;
 my %rows;
 my $rowscount = 1;
@@ -116,7 +150,7 @@ foreach my $key (@initcalls) {
         my $duration = $end{$key} - $start{$key};
 
         if ($duration >= $threshold) {
-                my ($s, $s2, $e, $w, $y, $y2, $style);
+                my ($s, $s2, $s3, $e, $w, $y, $y2, $style);
                 my $pid = $pids{$key};
 
                 if (!defined($rows{$pid})) {
@@ -125,6 +159,7 @@ foreach my $key (@initcalls) {
                 }
                 $s = ($start{$key} - $firsttime) * $mult;
                 $s2 = $s + 6;
+                $s3 = $s + 1;
                 $e = ($end{$key} - $firsttime) * $mult;
                 $w = $e - $s;
 
@@ -137,8 +172,17 @@ foreach my $key (@initcalls) {
                         $stylecounter = 0;
                 };
 
-                print "<rect x=\"$s\" width=\"$w\" y=\"$y\" height=\"145\" style=\"$style\"/>\n";
-                print "<text transform=\"translate($s2,$y2) rotate(90)\">$key</text>\n";
+                if ($type{$key} == 1) {
+                        $y = $y + 15;
+                        print "<rect x=\"$s\" width=\"$w\" y=\"$y\" height=\"115\" style=\"$style_wait\"/>\n";
+                } else {
+                        print "<rect x=\"$s\" width=\"$w\" y=\"$y\" height=\"145\" style=\"$style\"/>\n";
+                        if ($duration >= $threshold2) {
+                                print "<text transform=\"translate($s2,$y2) rotate(90)\">$key</text>\n";
+                        } else {
+                                print "<text transform=\"translate($s3,$y2) rotate(90)\" font-size=\"3pt\">$key</text>\n";
+                        }
+                }
         }
 }
 
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index f88bb3e21cda..7bed4ed2c519 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1,7 +1,8 @@
 #!/usr/bin/perl -w
 # (c) 2001, Dave Jones. <davej@redhat.com> (the file handling bit)
 # (c) 2005, Joel Schopp <jschopp@austin.ibm.com> (the ugly bit)
-# (c) 2007, Andy Whitcroft <apw@uk.ibm.com> (new conditions, test suite, etc)
+# (c) 2007,2008, Andy Whitcroft <apw@uk.ibm.com> (new conditions, test suite)
+# (c) 2008, Andy Whitcroft <apw@canonical.com>
 # Licensed under the terms of the GNU GPL License version 2
 
 use strict;
@@ -9,7 +10,7 @@ use strict;
 my $P = $0;
 $P =~ s@.*/@@g;
 
-my $V = '0.24';
+my $V = '0.26';
 
 use Getopt::Long qw(:config no_auto_abbrev);
 
@@ -68,7 +69,9 @@ my $dbg_possible = 0;
 my $dbg_type = 0;
 my $dbg_attr = 0;
 for my $key (keys %debug) {
-        eval "\${dbg_$key} = '$debug{$key}';"
+        ## no critic
+        eval "\${dbg_$key} = '$debug{$key}';";
+        die "$@" if ($@);
 }
 
 if ($terse) {
@@ -116,7 +119,8 @@ our $Attribute	= qr{
                         __(?:mem|cpu|dev|)(?:initdata|init)|
                         ____cacheline_aligned|
                         ____cacheline_aligned_in_smp|
-                        ____cacheline_internodealigned_in_smp
+                        ____cacheline_internodealigned_in_smp|
+                        __weak
                   }x;
 our $Modifier;
 our $Inline     = qr{inline|__always_inline|noinline};
@@ -125,6 +129,7 @@ our $Lval	= qr{$Ident(?:$Member)*};
 
 our $Constant   = qr{(?:[0-9]+|0x[0-9a-fA-F]+)[UL]*};
 our $Assignment = qr{(?:\*\=|/=|%=|\+=|-=|<<=|>>=|&=|\^=|\|=|=)};
+our $Compare    = qr{<=|>=|==|!=|<|>};
 our $Operators  = qr{
                         <=|>=|==|!=|
                         =>|->|<<|>>|<|>|!|~|
@@ -190,7 +195,7 @@ sub build_types {
                   }x;
         $Type   = qr{
                         $NonptrType
-                        (?:\s*\*+\s*const|\s*\*+|(?:\s*\[\s*\])+)?
+                        (?:[\s\*]+\s*const|[\s\*]+|(?:\s*\[\s*\])+)?
                         (?:\s+$Inline|\s+$Modifier)*
                   }x;
         $Declare        = qr{(?:$Storage\s+)?$Type};
@@ -203,9 +208,9 @@ my @dep_includes = ();
 my @dep_functions = ();
 my $removal = "Documentation/feature-removal-schedule.txt";
 if ($tree && -f "$root/$removal") {
-        open(REMOVE, "<$root/$removal") ||
+        open(my $REMOVE, '<', "$root/$removal") ||
                                 die "$P: $removal: open failed - $!\n";
-        while (<REMOVE>) {
+        while (<$REMOVE>) {
                 if (/^Check:\s+(.*\S)/) {
                         for my $entry (split(/[, ]+/, $1)) {
                                 if ($entry =~ m@include/(.*)@) {
@@ -217,17 +222,21 @@ if ($tree && -f "$root/$removal") {
                         }
                 }
         }
+        close($REMOVE);
 }
 
 my @rawlines = ();
 my @lines = ();
 my $vname;
 for my $filename (@ARGV) {
+        my $FILE;
         if ($file) {
-                open(FILE, "diff -u /dev/null $filename|") ||
+                open($FILE, '-|', "diff -u /dev/null $filename") ||
                         die "$P: $filename: diff failed - $!\n";
+        } elsif ($filename eq '-') {
+                open($FILE, '<&STDIN');
         } else {
-                open(FILE, "<$filename") ||
+                open($FILE, '<', "$filename") ||
                         die "$P: $filename: open failed - $!\n";
         }
         if ($filename eq '-') {
@@ -235,11 +244,11 @@ for my $filename (@ARGV) {
         } else {
                 $vname = $filename;
         }
-        while (<FILE>) {
+        while (<$FILE>) {
                 chomp;
                 push(@rawlines, $_);
         }
-        close(FILE);
+        close($FILE);
         if (!process($filename)) {
                 $exit = 1;
         }
@@ -366,7 +375,7 @@ sub sanitise_line {
                         }
                 }
 
-                #print "SQ:$sanitise_quote\n";
+                #print "c<$c> SQ<$sanitise_quote>\n";
                 if ($off != 0 && $sanitise_quote eq '*/' && $c ne "\t") {
                         substr($res, $off, 1, $;);
                 } elsif ($off != 0 && $sanitise_quote && $c ne "\t") {
@@ -402,6 +411,7 @@ sub ctx_statement_block {
 
         my $type = '';
         my $level = 0;
+        my @stack = ([$type, $level]);
         my $p;
         my $c;
         my $len = 0;
@@ -433,6 +443,16 @@ sub ctx_statement_block {
                 $remainder = substr($blk, $off);
 
                 #warn "CSB: c<$c> type<$type> level<$level> remainder<$remainder> coff_set<$coff_set>\n";
+
+                # Handle nested #if/#else.
+                if ($remainder =~ /^#\s*(?:ifndef|ifdef|if)\s/) {
+                        push(@stack, [ $type, $level ]);
+                } elsif ($remainder =~ /^#\s*(?:else|elif)\b/) {
+                        ($type, $level) = @{$stack[$#stack - 1]};
+                } elsif ($remainder =~ /^#\s*endif\b/) {
+                        ($type, $level) = @{pop(@stack)};
+                }
+
                 # Statement ends at the ';' or a close '}' at the
                 # outermost level.
                 if ($level == 0 && $c eq ';') {
@@ -579,11 +599,22 @@ sub ctx_block_get {
         my @res = ();
 
         my $level = 0;
+        my @stack = ($level);
         for ($line = $start; $remain > 0; $line++) {
                 next if ($rawlines[$line] =~ /^-/);
                 $remain--;
 
                 $blk .= $rawlines[$line];
+
+                # Handle nested #if/#else.
+                if ($rawlines[$line] =~ /^.\s*#\s*(?:ifndef|ifdef|if)\s/) {
+                        push(@stack, $level);
+                } elsif ($rawlines[$line] =~ /^.\s*#\s*(?:else|elif)\b/) {
+                        $level = $stack[$#stack - 1];
+                } elsif ($rawlines[$line] =~ /^.\s*#\s*endif\b/) {
+                        $level = pop(@stack);
+                }
+
                 foreach my $c (split(//, $rawlines[$line])) {
                         ##print "C<$c>L<$level><$open$close>O<$off>\n";
                         if ($off > 0) {
@@ -843,11 +874,11 @@ sub annotate_values {
                         $type = 'V';
                         $av_pending = 'V';
 
-                } elsif ($cur =~ /^($Ident\s*):/) {
-                        if ($type eq 'E') {
-                                $av_pend_colon = 'L';
-                        } elsif ($type eq 'T') {
+                } elsif ($cur =~ /^($Ident\s*):(?:\s*\d+\s*(,|=|;))?/) {
+                        if (defined $2 && $type eq 'C' || $type eq 'T') {
                                 $av_pend_colon = 'B';
+                        } elsif ($type eq 'E') {
+                                $av_pend_colon = 'L';
                         }
                         print "IDENT_COLON($1,$type>$av_pend_colon)\n" if ($dbg_values > 1);
                         $type = 'V';
@@ -865,6 +896,10 @@ sub annotate_values {
                         $type = 'E';
                         $av_pend_colon = 'O';
 
+                } elsif ($cur =~/^(,)/) {
+                        print "COMMA($1)\n" if ($dbg_values > 1);
+                        $type = 'C';
+
                 } elsif ($cur =~ /^(\?)/o) {
                         print "QUESTION($1)\n" if ($dbg_values > 1);
                         $type = 'N';
@@ -880,7 +915,7 @@ sub annotate_values {
                         }
                         $av_pend_colon = 'O';
 
-                } elsif ($cur =~ /^(;|\[)/o) {
+                } elsif ($cur =~ /^(\[)/o) {
                         print "CLOSE($1)\n" if ($dbg_values > 1);
                         $type = 'N';
 
@@ -1051,6 +1086,7 @@ sub process {
         my $in_comment = 0;
         my $comment_edge = 0;
         my $first_line = 0;
+        my $p1_prefix = '';
 
         my $prev_values = 'E';
 
@@ -1097,9 +1133,12 @@ sub process {
                                          $rawlines[$ln - 1] =~ /^-/);
                                 $cnt--;
                                 #print "RAW<$rawlines[$ln - 1]>\n";
-                                ($edge) = (defined $rawlines[$ln - 1] &&
-                                        $rawlines[$ln - 1] =~ m@(/\*|\*/)@);
-                                last if (defined $edge);
+                                last if (!defined $rawlines[$ln - 1]);
+                                if ($rawlines[$ln - 1] =~ m@(/\*|\*/)@ &&
+                                    $rawlines[$ln - 1] !~ m@"[^"]*(?:/\*|\*/)[^"]*"@) {
+                                        ($edge) = $1;
+                                        last;
+                                }
                         }
                         if (defined $edge && $edge eq '*/') {
                                 $in_comment = 1;
@@ -1109,7 +1148,7 @@ sub process {
                         # is the start of a diff block and this line starts
                         # ' *' then it is very likely a comment.
                         if (!defined $edge &&
-                            $rawlines[$linenr] =~ m@^.\s* \*(?:\s|$)@)
+                            $rawlines[$linenr] =~ m@^.\s*(?:\*\*+| \*)(?:\s|$)@)
                         {
                                 $in_comment = 1;
                         }
@@ -1196,7 +1235,12 @@ sub process {
                 # extract the filename as it passes
                 if ($line=~/^\+\+\+\s+(\S+)/) {
                         $realfile = $1;
-                        $realfile =~ s@^[^/]*/@@;
+                        $realfile =~ s@^([^/]*)/@@;
+
+                        $p1_prefix = $1;
+                        if ($tree && $p1_prefix ne '' && -e "$root/$p1_prefix") {
+                                WARN("patch prefix '$p1_prefix' exists, appears to be a -p0 patch\n");
+                        }
 
                         if ($realfile =~ m@^include/asm/@) {
                                 ERROR("do not modify files in include/asm, change architecture specific files in include/asm-<architecture>\n" . "$here$rawline\n");
@@ -1336,7 +1380,7 @@ sub process {
                         }
 
                         # any (foo ... *) is a pointer cast, and foo is a type
-                        while ($s =~ /\(($Ident)(?:\s+$Sparse)*\s*\*+\s*\)/sg) {
+                        while ($s =~ /\(($Ident)(?:\s+$Sparse)*[\s\*]+\s*\)/sg) {
                                 possible($1, "C:" . $s);
                         }
 
@@ -1594,7 +1638,7 @@ sub process {
                                 $herecurr);
                 }
 # check for static initialisers.
-                if ($line =~ /\s*static\s.*=\s*(0|NULL|false)\s*;/) {
+                if ($line =~ /\bstatic\s.*=\s*(0|NULL|false)\s*;/) {
                         ERROR("do not initialise statics to 0 or NULL\n" .
                                 $herecurr);
                 }
@@ -1602,7 +1646,7 @@ sub process {
 # check for new typedefs, only function parameters and sparse annotations
 # make sense.
                 if ($line =~ /\btypedef\s/ &&
-                    $line !~ /\btypedef\s+$Type\s+\(\s*\*?$Ident\s*\)\s*\(/ &&
+                    $line !~ /\btypedef\s+$Type\s*\(\s*\*?$Ident\s*\)\s*\(/ &&
                     $line !~ /\btypedef\s+$Type\s+$Ident\s*\(/ &&
                     $line !~ /\b$typeTypedefs\b/ &&
                     $line !~ /\b__bitwise(?:__|)\b/) {
@@ -1610,21 +1654,39 @@ sub process {
                 }
 
 # * goes on variable not on type
-                if ($line =~ m{\($NonptrType(\*+)(?:\s+const)?\)}) {
-                        ERROR("\"(foo$1)\" should be \"(foo $1)\"\n" .
-                                $herecurr);
+                # (char*[ const])
+                if ($line =~ m{\($NonptrType(\s*\*[\s\*]*(?:$Modifier\s*)*)\)}) {
+                        my ($from, $to) = ($1, $1);
 
-                } elsif ($line =~ m{\($NonptrType\s+(\*+)(?!\s+const)\s+\)}) {
-                        ERROR("\"(foo $1 )\" should be \"(foo $1)\"\n" .
-                                $herecurr);
+                        # Should start with a space.
+                        $to =~ s/^(\S)/ $1/;
+                        # Should not end with a space.
+                        $to =~ s/\s+$//;
+                        # '*'s should not have spaces between.
+                        while ($to =~ s/(.)\s\*/$1\*/) {
+                        }
 
-                } elsif ($line =~ m{\b$NonptrType(\*+)(?:\s+(?:$Attribute|$Sparse))?\s+[A-Za-z\d_]+}) {
-                        ERROR("\"foo$1 bar\" should be \"foo $1bar\"\n" .
-                                $herecurr);
+                        #print "from<$from> to<$to>\n";
+                        if ($from ne $to) {
+                                ERROR("\"(foo$from)\" should be \"(foo$to)\"\n" .  $herecurr);
+                        }
+                } elsif ($line =~ m{\b$NonptrType(\s*\*[\s\*]*(?:$Modifier\s*)?)($Ident)}) {
+                        my ($from, $to, $ident) = ($1, $1, $2);
 
-                } elsif ($line =~ m{\b$NonptrType\s+(\*+)(?!\s+(?:$Attribute|$Sparse))\s+[A-Za-z\d_]+}) {
-                        ERROR("\"foo $1 bar\" should be \"foo $1bar\"\n" .
-                                $herecurr);
+                        # Should start with a space.
+                        $to =~ s/^(\S)/ $1/;
+                        # Should not end with a space.
+                        $to =~ s/\s+$//;
+                        # '*'s should not have spaces between.
+                        while ($to =~ s/(.)\s\*/$1\*/) {
+                        }
+                        # Modifiers should have spaces.
+                        $to =~ s/(\b$Modifier$)/$1 /;
+
+                        #print "from<$from> to<$to>\n";
+                        if ($from ne $to) {
+                                ERROR("\"foo${from}bar\" should be \"foo${to}bar\"\n" .  $herecurr);
+                        }
                 }
 
 # # no BUG() or BUG_ON()
@@ -1759,7 +1821,7 @@ sub process {
                                         $c = 'C' if ($elements[$n + 2] =~ /^$;/);
                                         $c = 'B' if ($elements[$n + 2] =~ /^(\)|\]|;)/);
                                         $c = 'O' if ($elements[$n + 2] eq '');
-                                        $c = 'E' if ($elements[$n + 2] =~ /\s*\\$/);
+                                        $c = 'E' if ($elements[$n + 2] =~ /^\s*\\$/);
                                 } else {
                                         $c = 'E';
                                 }
@@ -1950,9 +2012,9 @@ sub process {
                         my $spacing = $1;
                         my $value = $2;
 
-                        # Flatten any parentheses and braces
+                        # Flatten any parentheses
                         $value =~ s/\)\(/\) \(/g;
-                        while ($value =~ s/\([^\(\)]*\)/1/) {
+                        while ($value !~ /(?:$Ident|-?$Constant)\s*$Compare\s*(?:$Ident|-?$Constant)/ && $value =~ s/\([^\(\)]*\)/1/) {
                         }
 
                         if ($value =~ /^(?:$Ident|-?$Constant)$/) {
@@ -1992,7 +2054,7 @@ sub process {
                     $line =~ /\b(?:if|while|for)\s*\(/ && $line !~ /^.\s*#/) {
                         my ($s, $c) = ($stat, $cond);
 
-                        if ($c =~ /\bif\s*\(.*[^<>!=]=[^=].*/) {
+                        if ($c =~ /\bif\s*\(.*[^<>!=]=[^=].*/s) {
                                 ERROR("do not use assignment in if condition\n" . $herecurr);
                         }
 
@@ -2167,9 +2229,10 @@ sub process {
                                 MODULE_PARAM_DESC|
                                 DECLARE_PER_CPU|
                                 DEFINE_PER_CPU|
-                                __typeof__\(
+                                __typeof__\(|
+                                \.$Ident\s*=\s*
                         }x;
-                        #print "REST<$rest>\n";
+                        #print "REST<$rest> dstat<$dstat>\n";
                         if ($rest ne '') {
                                 if ($rest !~ /while\s*\(/ &&
                                     $dstat !~ /$exceptions/)
@@ -2189,6 +2252,15 @@ sub process {
                         }
                 }
 
+# make sure symbols are always wrapped with VMLINUX_SYMBOL() ...
+# all assignments may have only one of the following with an assignment:
+#       .
+#       ALIGN(...)
+#       VMLINUX_SYMBOL(...)
+                if ($realfile eq 'vmlinux.lds.h' && $line =~ /(?:(?:^|\s)$Ident\s*=|=\s*$Ident(?:\s|$))/) {
+                        WARN("vmlinux.lds.h needs VMLINUX_SYMBOL() around C-visible symbols\n" . $herecurr);
+                }
+
 # check for redundant bracing round if etc
                 if ($line =~ /(^.*)\bif\b/ && $1 !~ /else\s*$/) {
                         my ($level, $endln, @chunks) =
@@ -2443,6 +2515,11 @@ sub process {
                 if ($line =~ /^.\s*__initcall\s*\(/) {
                         WARN("please use device_initcall() instead of __initcall()\n" . $herecurr);
                 }
+# check for struct file_operations, ensure they are const.
+                if ($line =~ /\bstruct\s+file_operations\b/ &&
+                    $line !~ /\bconst\b/) {
+                        WARN("struct file_operations should normally be const\n" . $herecurr);
+                }
 
 # use of NR_CPUS is usually wrong
 # ignore definitions of NR_CPUS and usage to define arrays as likely right
@@ -2466,6 +2543,15 @@ sub process {
                                 last;
                         }
                 }
+
+# whine mightly about in_atomic
+                if ($line =~ /\bin_atomic\s*\(/) {
+                        if ($realfile =~ m@^drivers/@) {
+                                ERROR("do not use in_atomic in drivers\n" . $herecurr);
+                        } else {
+                                WARN("use of in_atomic() is incorrect outside core kernel code\n" . $herecurr);
+                        }
+                }
         }
 
         # If we have no input at all, then there is nothing to report on
diff --git a/scripts/config b/scripts/config
new file mode 100755
index 000000000000..68b9761cdc38
--- /dev/null
+++ b/scripts/config
@@ -0,0 +1,150 @@
+#!/bin/bash
+# Manipulate options in a .config file from the command line
+
+usage() {
+        cat >&2 <<EOL
+Manipulate options in a .config file from the command line.
+Usage:
+config options command ...
+commands:
+        --enable|-e option   Enable option
+        --disable|-d option  Disable option
+        --module|-m option      Turn option into a module
+        --state|-s option       Print state of option (n,y,m,undef)
+
+        --enable-after|-E beforeopt option
+                             Enable option directly after other option
+        --disable-after|-D beforeopt option
+                             Disable option directly after other option
+        --module-after|-M beforeopt option
+                             Turn option into module directly after other option
+
+        commands can be repeated multiple times
+
+options:
+        --file .config file to change (default .config)
+
+config doesn't check the validity of the .config file. This is done at next
+ make time.
+The options need to be already in the file before they can be changed,
+but sometimes you can cheat with the --*-after options.
+EOL
+        exit 1
+}
+
+checkarg() {
+        ARG="$1"
+        if [ "$ARG" = "" ] ; then
+                usage
+        fi
+        case "$ARG" in
+        CONFIG_*)
+                ARG="${ARG/CONFIG_/}"
+                ;;
+        esac
+        ARG="`echo $ARG | tr a-z A-Z`"
+}
+
+replace() {
+        sed -i -e "$@" $FN
+}
+
+if [ "$1" = "--file" ]; then
+        FN="$2"
+        if [ "$FN" = "" ] ; then
+                usage
+        fi
+        shift
+        shift
+else
+        FN=.config
+fi
+
+while [ "$1" != "" ] ; do
+        CMD="$1"
+        shift
+        case "$CMD" in
+        --enable|-e)
+                checkarg "$1"
+                replace "s/# CONFIG_$ARG is not set/CONFIG_$ARG=y/"
+                shift
+                ;;
+
+        --disable|-d)
+                checkarg "$1"
+                replace "s/CONFIG_$ARG=[my]/# CONFIG_$ARG is not set/"
+                shift
+                ;;
+
+        --module|-m)
+                checkarg "$1"
+                replace "s/CONFIG_$ARG=y/CONFIG_$ARG=m/" \
+                        -e "s/# CONFIG_$ARG is not set/CONFIG_$ARG=m/"
+                shift
+                ;;
+
+        --state|-s)
+                checkarg "$1"
+                if grep -q "# CONFIG_$ARG is not set" $FN ; then
+                        echo n
+                else
+                        V="$(grep "^CONFIG_$ARG=" $FN)"
+                        if [ $? != 0 ] ; then
+                                echo undef
+                        else
+                                V="${V/CONFIG_$ARG=/}"
+                                V="${V/\"/}"
+                                echo "$V"
+                        fi
+                fi
+                shift
+                ;;
+
+        --enable-after|-E)
+                checkarg "$1"
+                A=$ARG
+                checkarg "$2"
+                B=$ARG
+                replace "/CONFIG_$A=[my]/aCONFIG_$B=y" \
+                        -e "/# CONFIG_$ARG is not set/a/CONFIG_$ARG=y" \
+                        -e "s/# CONFIG_$ARG is not set/CONFIG_$ARG=y/"
+                shift
+                shift
+                ;;
+
+        --disable-after|-D)
+                checkarg "$1"
+                A=$ARG
+                checkarg "$2"
+                B=$ARG
+                replace "/CONFIG_$A=[my]/a# CONFIG_$B is not set" \
+                -e "/# CONFIG_$ARG is not set/a/# CONFIG_$ARG is not set" \
+                -e "s/CONFIG_$ARG=[my]/# CONFIG_$ARG is not set/"
+                shift
+                shift
+                ;;
+
+        --module-after|-M)
+                checkarg "$1"
+                A=$ARG
+                checkarg "$2"
+                B=$ARG
+                replace "/CONFIG_$A=[my]/aCONFIG_$B=m" \
+                        -e "/# CONFIG_$ARG is not set/a/CONFIG_$ARG=m" \
+                        -e "s/CONFIG_$ARG=y/CONFIG_$ARG=m/" \
+                        -e "s/# CONFIG_$ARG is not set/CONFIG_$ARG=m/"
+                shift
+                shift
+                ;;
+
+        # undocumented because it ignores --file (fixme)
+        --refresh)
+                yes "" | make oldconfig
+                ;;
+
+        *)
+                usage
+                ;;
+        esac
+done
+
diff --git a/scripts/ihex2fw.c b/scripts/ihex2fw.c
new file mode 100644
index 000000000000..8f7fdaa9e010
--- /dev/null
+++ b/scripts/ihex2fw.c
@@ -0,0 +1,268 @@
+/*
+ * Parser/loader for IHEX formatted data.
+ *
+ * Copyright © 2008 David Woodhouse <dwmw2@infradead.org>
+ * Copyright © 2005 Jan Harkes <jaharkes@cs.cmu.edu>
+ *
+ * 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.
+ */
+
+#include <stdint.h>
+#include <arpa/inet.h>
+#include <stdio.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+#include <fcntl.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdlib.h>
+#define _GNU_SOURCE
+#include <getopt.h>
+
+
+struct ihex_binrec {
+        struct ihex_binrec *next; /* not part of the real data structure */
+        uint32_t addr;
+        uint16_t len;
+        uint8_t data[];
+};
+
+/**
+ * nybble/hex are little helpers to parse hexadecimal numbers to a byte value
+ **/
+static uint8_t nybble(const uint8_t n)
+{
+       if      (n >= '0' && n <= '9') return n - '0';
+       else if (n >= 'A' && n <= 'F') return n - ('A' - 10);
+       else if (n >= 'a' && n <= 'f') return n - ('a' - 10);
+       return 0;
+}
+
+static uint8_t hex(const uint8_t *data, uint8_t *crc)
+{
+       uint8_t val = (nybble(data[0]) << 4) | nybble(data[1]);
+       *crc += val;
+       return val;
+}
+
+static int process_ihex(uint8_t *data, ssize_t size);
+static void file_record(struct ihex_binrec *record);
+static int output_records(int outfd);
+
+static int sort_records = 0;
+static int wide_records = 0;
+
+int usage(void)
+{
+        fprintf(stderr, "ihex2fw: Convert ihex files into binary "
+                "representation for use by Linux kernel\n");
+        fprintf(stderr, "usage: ihex2fw [<options>] <src.HEX> <dst.fw>\n");
+        fprintf(stderr, "       -w: wide records (16-bit length)\n");
+        fprintf(stderr, "       -s: sort records by address\n");
+        return 1;
+}
+
+int main(int argc, char **argv)
+{
+        int infd, outfd;
+        struct stat st;
+        uint8_t *data;
+        int opt;
+
+        while ((opt = getopt(argc, argv, "ws")) != -1) {
+                switch (opt) {
+                case 'w':
+                        wide_records = 1;
+                        break;
+                case 's':
+                        sort_records = 1;
+                        break;
+                default:
+                        return usage();
+                }
+        }
+
+        if (optind + 2 != argc)
+                return usage();
+
+        if (!strcmp(argv[optind], "-"))
+            infd = 0;
+        else
+                infd = open(argv[optind], O_RDONLY);
+        if (infd == -1) {
+                fprintf(stderr, "Failed to open source file: %s",
+                        strerror(errno));
+                return usage();
+        }
+        if (fstat(infd, &st)) {
+                perror("stat");
+                return 1;
+        }
+        data = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, infd, 0);
+        if (data == MAP_FAILED) {
+                perror("mmap");
+                return 1;
+        }
+
+        if (!strcmp(argv[optind+1], "-"))
+            outfd = 1;
+        else
+                outfd = open(argv[optind+1], O_TRUNC|O_CREAT|O_WRONLY, 0644);
+        if (outfd == -1) {
+                fprintf(stderr, "Failed to open destination file: %s",
+                        strerror(errno));
+                return usage();
+        }
+        if (process_ihex(data, st.st_size))
+                return 1;
+
+        output_records(outfd);
+        return 0;
+}
+
+static int process_ihex(uint8_t *data, ssize_t size)
+{
+        struct ihex_binrec *record;
+        uint32_t offset = 0;
+        uint8_t type, crc = 0, crcbyte = 0;
+        int i, j;
+        int line = 1;
+        int len;
+
+        i = 0;
+next_record:
+        /* search for the start of record character */
+        while (i < size) {
+                if (data[i] == '\n') line++;
+                if (data[i++] == ':') break;
+        }
+
+        /* Minimum record length would be about 10 characters */
+        if (i + 10 > size) {
+                fprintf(stderr, "Can't find valid record at line %d\n", line);
+                return -EINVAL;
+        }
+
+        len = hex(data + i, &crc); i += 2;
+        if (wide_records) {
+                len <<= 8;
+                len += hex(data + i, &crc); i += 2;
+        }
+        record = malloc((sizeof (*record) + len + 3) & ~3);
+        if (!record) {
+                fprintf(stderr, "out of memory for records\n");
+                return -ENOMEM;
+        }
+        memset(record, 0, (sizeof(*record) + len + 3) & ~3);
+        record->len = len;
+
+        /* now check if we have enough data to read everything */
+        if (i + 8 + (record->len * 2) > size) {
+                fprintf(stderr, "Not enough data to read complete record at line %d\n",
+                        line);
+                return -EINVAL;
+        }
+
+        record->addr  = hex(data + i, &crc) << 8; i += 2;
+        record->addr |= hex(data + i, &crc); i += 2;
+        type = hex(data + i, &crc); i += 2;
+
+        for (j = 0; j < record->len; j++, i += 2)
+                record->data[j] = hex(data + i, &crc);
+
+        /* check CRC */
+        crcbyte = hex(data + i, &crc); i += 2;
+        if (crc != 0) {
+                fprintf(stderr, "CRC failure at line %d: got 0x%X, expected 0x%X\n",
+                        line, crcbyte, (unsigned char)(crcbyte-crc));
+                return -EINVAL;
+        }
+
+        /* Done reading the record */
+        switch (type) {
+        case 0:
+                /* old style EOF record? */
+                if (!record->len)
+                        break;
+
+                record->addr += offset;
+                file_record(record);
+                goto next_record;
+
+        case 1: /* End-Of-File Record */
+                if (record->addr || record->len) {
+                        fprintf(stderr, "Bad EOF record (type 01) format at line %d",
+                                line);
+                        return -EINVAL;
+                }
+                break;
+
+        case 2: /* Extended Segment Address Record (HEX86) */
+        case 4: /* Extended Linear Address Record (HEX386) */
+                if (record->addr || record->len != 2) {
+                        fprintf(stderr, "Bad HEX86/HEX386 record (type %02X) at line %d\n",
+                                type, line);
+                        return -EINVAL;
+                }
+
+                /* We shouldn't really be using the offset for HEX86 because
+                 * the wraparound case is specified quite differently. */
+                offset = record->data[0] << 8 | record->data[1];
+                offset <<= (type == 2 ? 4 : 16);
+                goto next_record;
+
+        case 3: /* Start Segment Address Record */
+        case 5: /* Start Linear Address Record */
+                if (record->addr || record->len != 4) {
+                        fprintf(stderr, "Bad Start Address record (type %02X) at line %d\n",
+                                type, line);
+                        return -EINVAL;
+                }
+
+                /* These records contain the CS/IP or EIP where execution
+                 * starts. Don't really know what to do with them. */
+                goto next_record;
+
+        default:
+                fprintf(stderr, "Unknown record (type %02X)\n", type);
+                return -EINVAL;
+        }
+
+        return 0;
+}
+
+static struct ihex_binrec *records;
+
+static void file_record(struct ihex_binrec *record)
+{
+        struct ihex_binrec **p = &records;
+
+        while ((*p) && (!sort_records || (*p)->addr < record->addr))
+                p = &((*p)->next);
+
+        record->next = *p;
+        *p = record;
+}
+
+static int output_records(int outfd)
+{
+        unsigned char zeroes[6] = {0, 0, 0, 0, 0, 0};
+        struct ihex_binrec *p = records;
+
+        while (p) {
+                uint16_t writelen = (p->len + 9) & ~3;
+
+                p->addr = htonl(p->addr);
+                p->len = htons(p->len);
+                write(outfd, &p->addr, writelen);
+                p = p->next;
+        }
+        /* EOF record is zero length, since we don't bother to represent
+           the type field in the binary version */
+        write(outfd, zeroes, 6);
+        return 0;
+}
diff --git a/scripts/markup_oops.pl b/scripts/markup_oops.pl
new file mode 100644
index 000000000000..700a7a654a3f
--- /dev/null
+++ b/scripts/markup_oops.pl
@@ -0,0 +1,162 @@
+#!/usr/bin/perl -w
+
+# Copyright 2008, Intel Corporation
+#
+# This file is part of the Linux kernel
+#
+# This program file is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by the
+# Free Software Foundation; version 2 of the License.
+#
+# Authors:
+#       Arjan van de Ven <arjan@linux.intel.com>
+
+
+my $vmlinux_name = $ARGV[0];
+
+#
+# Step 1: Parse the oops to find the EIP value
+#
+
+my $target = "0";
+while (<STDIN>) {
+        if ($_ =~ /EIP: 0060:\[\<([a-z0-9]+)\>\]/) {
+                $target = $1;
+        }
+}
+
+if ($target =~ /^f8/) {
+        print "This script does not work on modules ... \n";
+        exit;
+}
+
+if ($target eq "0") {
+        print "No oops found!\n";
+        print "Usage: \n";
+        print "    dmesg | perl scripts/markup_oops.pl vmlinux\n";
+        exit;
+}
+
+my $counter = 0;
+my $state   = 0;
+my $center  = 0;
+my @lines;
+
+sub InRange {
+        my ($address, $target) = @_;
+        my $ad = "0x".$address;
+        my $ta = "0x".$target;
+        my $delta = hex($ad) - hex($ta);
+
+        if (($delta > -4096) && ($delta < 4096)) {
+                return 1;
+        }
+        return 0;
+}
+
+
+
+# first, parse the input into the lines array, but to keep size down,
+# we only do this for 4Kb around the sweet spot
+
+my $filename;
+
+open(FILE, "objdump -dS $vmlinux_name |") || die "Cannot start objdump";
+
+while (<FILE>) {
+        my $line = $_;
+        chomp($line);
+        if ($state == 0) {
+                if ($line =~ /^([a-f0-9]+)\:/) {
+                        if (InRange($1, $target)) {
+                                $state = 1;
+                        }
+                }
+        } else {
+                if ($line =~ /^([a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9]+)\:/) {
+                        my $val = $1;
+                        if (!InRange($val, $target)) {
+                                last;
+                        }
+                        if ($val eq $target) {
+                                $center = $counter;
+                        }
+                }
+                $lines[$counter] = $line;
+
+                $counter = $counter + 1;
+        }
+}
+
+close(FILE);
+
+if ($counter == 0) {
+        print "No matching code found \n";
+        exit;
+}
+
+if ($center == 0) {
+        print "No matching code found \n";
+        exit;
+}
+
+my $start;
+my $finish;
+my $codelines = 0;
+my $binarylines = 0;
+# now we go up and down in the array to find how much we want to print
+
+$start = $center;
+
+while ($start > 1) {
+        $start = $start - 1;
+        my $line = $lines[$start];
+        if ($line =~ /^([a-f0-9]+)\:/) {
+                $binarylines = $binarylines + 1;
+        } else {
+                $codelines = $codelines + 1;
+        }
+        if ($codelines > 10) {
+                last;
+        }
+        if ($binarylines > 20) {
+                last;
+        }
+}
+
+
+$finish = $center;
+$codelines = 0;
+$binarylines = 0;
+while ($finish < $counter) {
+        $finish = $finish + 1;
+        my $line = $lines[$finish];
+        if ($line =~ /^([a-f0-9]+)\:/) {
+                $binarylines = $binarylines + 1;
+        } else {
+                $codelines = $codelines + 1;
+        }
+        if ($codelines > 10) {
+                last;
+        }
+        if ($binarylines > 20) {
+                last;
+        }
+}
+
+
+my $i;
+
+my $fulltext = "";
+$i = $start;
+while ($i < $finish) {
+        if ($i == $center) {
+                $fulltext = $fulltext . "*$lines[$i]     <----- faulting instruction\n";
+        } else {
+                $fulltext = $fulltext .  " $lines[$i]\n";
+        }
+        $i = $i +1;
+}
+
+print $fulltext;
+
diff --git a/scripts/tags.sh b/scripts/tags.sh
index 9e3451d2c3a1..fdbe78bb5e2b 100755
--- a/scripts/tags.sh
+++ b/scripts/tags.sh
@@ -24,6 +24,11 @@ else
         tree=${srctree}/
 fi
 
+# Detect if ALLSOURCE_ARCHS is set. If not, we assume SRCARCH
+if [ "${ALLSOURCE_ARCHS}" = "" ]; then
+        ALLSOURCE_ARCHS=${SRCARCH}
+fi
+
 # find sources in arch/$ARCH
 find_arch_sources()
 {
@@ -54,26 +59,29 @@ find_other_sources()
 find_sources()
 {
         find_arch_sources $1 "$2"
-        find_include_sources "$2"
-        find_other_sources "$2"
 }
 
 all_sources()
 {
-        find_sources $SRCARCH '*.[chS]'
+        for arch in $ALLSOURCE_ARCHS
+        do
+                find_sources $arch '*.[chS]'
+        done
         if [ ! -z "$archinclude" ]; then
                 find_arch_include_sources $archinclude '*.[chS]'
         fi
+        find_include_sources '*.[chS]'
+        find_other_sources '*.[chS]'
 }
 
 all_kconfigs()
 {
-        find_sources $SRCARCH 'Kconfig*'
+        find_sources $ALLSOURCE_ARCHS 'Kconfig*'
 }
 
 all_defconfigs()
 {
-        find_sources $SRCARCH "defconfig"
+        find_sources $ALLSOURCE_ARCHS "defconfig"
 }
 
 docscope()