Merge commit 'v2.6.35' into kbuild/kbuild

Conflicts:
	arch/powerpc/Makefile

22 files changed, 543 insertions, 360 deletions

diff --git a/scripts/.gitignore b/scripts/.gitignore
index 52cab46ae35..c5d5db54c00 100644
--- a/scripts/.gitignore
+++ b/scripts/.gitignore
@@ -6,5 +6,4 @@ kallsyms
 pnmtologo
 bin2c
 unifdef
-binoffset
 ihex2fw
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index f3ccdb1b302..54fd1b70013 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -245,3 +245,7 @@ quiet_cmd_lzo = LZO     $@
 cmd_lzo = (cat $(filter-out FORCE,$^) | \
 	lzop -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
 	(rm -f $@ ; false)
+
+# misc stuff
+# ---------------------------------------------------------------------------
+quote:="
diff --git a/scripts/Makefile.modbuiltin b/scripts/Makefile.modbuiltin
index 102a276f6ee..1adb974e695 100644
--- a/scripts/Makefile.modbuiltin
+++ b/scripts/Makefile.modbuiltin
@@ -14,6 +14,11 @@ __modbuiltin:
 
 include scripts/Kbuild.include
 
+ifneq ($(KBUILD_SRC),)
+# Create output directory if not already present
+_dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj))
+endif
+
 # The filename Kbuild has precedence over Makefile
 kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
 kbuild-file := $(if $(wildcard $(kbuild-dir)/Kbuild),$(kbuild-dir)/Kbuild,$(kbuild-dir)/Makefile)
diff --git a/scripts/binoffset.c b/scripts/binoffset.c
deleted file mode 100644
index 1a2e39b8e3e..00000000000
--- a/scripts/binoffset.c
+++ /dev/null
@@ -1,163 +0,0 @@
-/***************************************************************************
- * binoffset.c
- * (C) 2002 Randy Dunlap <rdunlap@xenotime.net>
-
-#   This program 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; either version 2 of the License, or
-#   (at your option) any later version.
-#
-#   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.
-#
-#   You should have received a copy of the GNU General Public License
-#   along with this program; if not, write to the Free Software
-#   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-# binoffset.c:
-# - searches a (binary) file for a specified (binary) pattern
-# - returns the offset of the located pattern or ~0 if not found
-# - exits with exit status 0 normally or non-0 if pattern is not found
-#   or any other error occurs.
-
-****************************************************************/
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/mman.h>
-
-#define VERSION		"0.1"
-#define BUF_SIZE	(16 * 1024)
-#define PAT_SIZE	100
-
-char		*progname;
-char		*inputname;
-int		inputfd;
-unsigned int	bix;			/* buf index */
-unsigned char	patterns [PAT_SIZE] = {0}; /* byte-sized pattern array */
-int		pat_len;		/* actual number of pattern bytes */
-unsigned char	*madr;			/* mmap address */
-size_t		filesize;
-int		num_matches = 0;
-off_t		firstloc = 0;
-
-void usage (void)
-{
-	fprintf (stderr, "%s ver. %s\n", progname, VERSION);
-	fprintf (stderr, "usage:  %s filename pattern_bytes\n",
-			progname);
-	fprintf (stderr, "        [prints location of pattern_bytes in file]\n");
-	exit (1);
-}
-
-void get_pattern (int pat_count, char *pats [])
-{
-	int ix, err, tmp;
-
-#ifdef DEBUG
-	fprintf (stderr,"get_pattern: count = %d\n", pat_count);
-	for (ix = 0; ix < pat_count; ix++)
-		fprintf (stderr, "  pat # %d:  [%s]\n", ix, pats[ix]);
-#endif
-
-	for (ix = 0; ix < pat_count; ix++) {
-		tmp = 0;
-		err = sscanf (pats[ix], "%5i", &tmp);
-		if (err != 1 || tmp > 0xff) {
-			fprintf (stderr, "pattern or value error in pattern # %d [%s]\n",
-					ix, pats[ix]);
-			usage ();
-		}
-		patterns [ix] = tmp;
-	}
-	pat_len = pat_count;
-}
-
-void search_pattern (void)
-{
-	for (bix = 0; bix < filesize; bix++) {
-		if (madr[bix] == patterns[0]) {
-			if (memcmp (&madr[bix], patterns, pat_len) == 0) {
-				if (num_matches == 0)
-					firstloc = bix;
-				num_matches++;
-			}
-		}
-	}
-}
-
-#ifdef NOTDEF
-size_t get_filesize (int fd)
-{
-	off_t end_off = lseek (fd, 0, SEEK_END);
-	lseek (fd, 0, SEEK_SET);
-	return (size_t) end_off;
-}
-#endif
-
-size_t get_filesize (int fd)
-{
-	int err;
-	struct stat stat;
-
-	err = fstat (fd, &stat);
-	fprintf (stderr, "filesize: %ld\n", err < 0 ? (long)err : stat.st_size);
-	if (err < 0)
-		return err;
-	return (size_t) stat.st_size;
-}
-
-int main (int argc, char *argv [])
-{
-	progname = argv[0];
-
-	if (argc < 3)
-		usage ();
-
-	get_pattern (argc - 2, argv + 2);
-
-	inputname = argv[1];
-
-	inputfd = open (inputname, O_RDONLY);
-	if (inputfd == -1) {
-		fprintf (stderr, "%s: cannot open '%s'\n",
-				progname, inputname);
-		exit (3);
-	}
-
-	filesize = get_filesize (inputfd);
-
-	madr = mmap (0, filesize, PROT_READ, MAP_PRIVATE, inputfd, 0);
-	if (madr == MAP_FAILED) {
-		fprintf (stderr, "mmap error = %d\n", errno);
-		close (inputfd);
-		exit (4);
-	}
-
-	search_pattern ();
-
-	if (munmap (madr, filesize))
-		fprintf (stderr, "munmap error = %d\n", errno);
-
-	if (close (inputfd))
-		fprintf (stderr, "%s: error %d closing '%s'\n",
-				progname, errno, inputname);
-
-	fprintf (stderr, "number of pattern matches = %d\n", num_matches);
-	if (num_matches == 0)
-		firstloc = ~0;
-	printf ("%ld\n", firstloc);
-	fprintf (stderr, "%ld\n", firstloc);
-
-	exit (num_matches ? 0 : 2);
-}
-
-/* end binoffset.c */
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 3257d3d9676..bd88f11b095 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -145,11 +145,14 @@ our $Sparse	= qr{
 			__kprobes|
 			__ref
 		}x;
+
+# Notes to $Attribute:
+# We need \b after 'init' otherwise 'initconst' will cause a false positive in a check
 our $Attribute	= qr{
 			const|
 			__read_mostly|
 			__kprobes|
-			__(?:mem|cpu|dev|)(?:initdata|init)|
+			__(?:mem|cpu|dev|)(?:initdata|initconst|init\b)|
 			____cacheline_aligned|
 			____cacheline_aligned_in_smp|
 			____cacheline_internodealigned_in_smp|
@@ -189,6 +192,14 @@ our $typeTypedefs = qr{(?x:
 	atomic_t
 )};
 
+our $logFunctions = qr{(?x:
+	printk|
+	pr_(debug|dbg|vdbg|devel|info|warning|err|notice|alert|crit|emerg|cont)|
+	dev_(printk|dbg|vdbg|info|warn|err|notice|alert|crit|emerg|WARN)|
+	WARN|
+	panic
+)};
+
 our @typeList = (
 	qr{void},
 	qr{(?:unsigned\s+)?char},
@@ -1371,18 +1382,38 @@ sub process {
 			ERROR("trailing whitespace\n" . $herevet);
 		}
 
+# check for Kconfig help text having a real description
+		if ($realfile =~ /Kconfig/ &&
+		    $line =~ /\+?\s*(---)?help(---)?$/) {
+			my $length = 0;
+			for (my $l = $linenr; defined($lines[$l]); $l++) {
+				my $f = $lines[$l];
+				$f =~ s/#.*//;
+				$f =~ s/^\s+//;
+				next if ($f =~ /^$/);
+				last if ($f =~ /^\s*config\s/);
+				$length++;
+			}
+			WARN("please write a paragraph that describes the config symbol fully\n" . $herecurr) if ($length < 4);
+		}
+
 # check we are in a valid source file if not then ignore this hunk
 		next if ($realfile !~ /\.(h|c|s|S|pl|sh)$/);
 
 #80 column limit
 		if ($line =~ /^\+/ && $prevrawline !~ /\/\*\*/ &&
 		    $rawline !~ /^.\s*\*\s*\@$Ident\s/ &&
-		    $line !~ /^\+\s*printk\s*\(\s*(?:KERN_\S+\s*)?"[X\t]*"\s*(?:,|\)\s*;)\s*$/ &&
+		    $line !~ /^\+\s*$logFunctions\s*\(\s*(?:KERN_\S+\s*)?"[X\t]*"\s*(?:,|\)\s*;)\s*$/ &&
 		    $length > 80)
 		{
 			WARN("line over 80 characters\n" . $herecurr);
 		}
 
+# check for spaces before a quoted newline
+		if ($rawline =~ /^.*\".*\s\\n/) {
+			WARN("unnecessary whitespace before a quoted newline\n" . $herecurr);
+		}
+
 # check for adding lines without a newline.
 		if ($line =~ /^\+/ && defined $lines[$linenr] && $lines[$linenr] =~ /^\\ No newline at end of file/) {
 			WARN("adding a line without newline at end of file\n" . $herecurr);
@@ -1411,6 +1442,12 @@ sub process {
 			ERROR("code indent should use tabs where possible\n" . $herevet);
 		}
 
+# check for space before tabs.
+		if ($rawline =~ /^\+/ && $rawline =~ / \t/) {
+			my $herevet = "$here\n" . cat_vet($rawline) . "\n";
+			WARN("please, no space before tabs\n" . $herevet);
+		}
+
 # check we are in a valid C source file if not then ignore this hunk
 		next if ($realfile !~ /\.(h|c)$/);
 
@@ -2182,8 +2219,10 @@ sub process {
 				# Find out how long the conditional actually is.
 				my @newlines = ($c =~ /\n/gs);
 				my $cond_lines = 1 + $#newlines;
+				my $stat_real = '';
 
-				my $stat_real = raw_line($linenr, $cond_lines);
+				$stat_real = raw_line($linenr, $cond_lines)
+							. "\n" if ($cond_lines);
 				if (defined($stat_real) && $cond_lines > 1) {
 					$stat_real = "[...]\n$stat_real";
 				}
@@ -2348,6 +2387,8 @@ sub process {
 				DECLARE_PER_CPU|
 				DEFINE_PER_CPU|
 				__typeof__\(|
+				union|
+				struct|
 				\.$Ident\s*=\s*|
 				^\"|\"$
 			}x;
@@ -2560,6 +2601,11 @@ sub process {
 			CHK("architecture specific defines should be avoided\n" .  $herecurr);
 		}
 
+# Check that the storage class is at the beginning of a declaration
+		if ($line =~ /\b$Storage\b/ && $line !~ /^.\s*$Storage\b/) {
+			WARN("storage class should be at the beginning of the declaration\n" . $herecurr)
+		}
+
 # check the location of the inline attribute, that it is between
 # storage class and type.
 		if ($line =~ /\b$Type\s+$Inline\b/ ||
@@ -2572,6 +2618,11 @@ sub process {
 			WARN("plain inline is preferred over $1\n" . $herecurr);
 		}
 
+# check for sizeof(&)
+		if ($line =~ /\bsizeof\s*\(\s*\&/) {
+			WARN("sizeof(& should be avoided\n" . $herecurr);
+		}
+
 # check for new externs in .c files.
 		if ($realfile =~ /\.c$/ && defined $stat &&
 		    $stat =~ /^.\s*(?:extern\s+)?$Type\s+($Ident)(\s*)\(/s)
@@ -2625,6 +2676,7 @@ sub process {
 # check for semaphores used as mutexes
 		if ($line =~ /^.\s*init_MUTEX_LOCKED\s*\(/) {
 			WARN("consider using a completion\n" . $herecurr);
+
 		}
 # recommend strict_strto* over simple_strto*
 		if ($line =~ /\bsimple_(strto.*?)\s*\(/) {
@@ -2634,9 +2686,46 @@ 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.
+# check for various ops structs, ensure they are const.
+		my $struct_ops = qr{acpi_dock_ops|
+				address_space_operations|
+				backlight_ops|
+				block_device_operations|
+				dentry_operations|
+				dev_pm_ops|
+				dma_map_ops|
+				extent_io_ops|
+				file_lock_operations|
+				file_operations|
+				hv_ops|
+				ide_dma_ops|
+				intel_dvo_dev_ops|
+				item_operations|
+				iwl_ops|
+				kgdb_arch|
+				kgdb_io|
+				kset_uevent_ops|
+				lock_manager_operations|
+				microcode_ops|
+				mtrr_ops|
+				neigh_ops|
+				nlmsvc_binding|
+				pci_raw_ops|
+				pipe_buf_operations|
+				platform_hibernation_ops|
+				platform_suspend_ops|
+				proto_ops|
+				rpc_pipe_ops|
+				seq_operations|
+				snd_ac97_build_ops|
+				soc_pcmcia_socket_ops|
+				stacktrace_ops|
+				sysfs_ops|
+				tty_operations|
+				usb_mon_operations|
+				wd_ops}x;
 		if ($line !~ /\bconst\b/ &&
-		    $line =~ /\bstruct\s+(file_operations|seq_operations)\b/) {
+		    $line =~ /\bstruct\s+($struct_ops)\b/) {
 			WARN("struct $1 should normally be const\n" .
 				$herecurr);
 		}
@@ -2672,6 +2761,16 @@ sub process {
 				WARN("use of in_atomic() is incorrect outside core kernel code\n" . $herecurr);
 			}
 		}
+
+# check for lockdep_set_novalidate_class
+		if ($line =~ /^.\s*lockdep_set_novalidate_class\s*\(/ ||
+		    $line =~ /__lockdep_no_validate__\s*\)/ ) {
+			if ($realfile !~ m@^kernel/lockdep@ &&
+			    $realfile !~ m@^include/linux/lockdep@ &&
+			    $realfile !~ m@^drivers/base/core@) {
+				ERROR("lockdep_no_validate class is reserved for device->mutex.\n" . $herecurr);
+			}
+		}
 	}
 
 	# If we have no input at all, then there is nothing to report on
diff --git a/scripts/extract-ikconfig b/scripts/extract-ikconfig
index de233ff43c1..37f30d36c94 100755
--- a/scripts/extract-ikconfig
+++ b/scripts/extract-ikconfig
@@ -1,92 +1,53 @@
 #!/bin/sh
-# extracts .config info from a [b]zImage file
-# uses: binoffset (new), dd, zcat, strings, grep
-# $arg1 is [b]zImage filename
-
-binoffset="./scripts/binoffset"
-test -e $binoffset || cc -o $binoffset ./scripts/binoffset.c || exit 1
-
-IKCFG_ST="0x49 0x4b 0x43 0x46 0x47 0x5f 0x53 0x54"
-IKCFG_ED="0x49 0x4b 0x43 0x46 0x47 0x5f 0x45 0x44"
-dump_config() {
-    file="$1"
-
-    start=`$binoffset $file $IKCFG_ST 2>/dev/null`
-    [ "$?" != "0" ] && start="-1"
-    if [ "$start" -eq "-1" ]; then
-	return
-    fi
-    end=`$binoffset $file $IKCFG_ED 2>/dev/null`
-    [ "$?" != "0" ] && end="-1"
-    if [ "$end" -eq "-1" ]; then
-	return
-    fi
-
-    start=`expr $start + 8`
-    size=`expr $end - $start`
-
-    dd if="$file" ibs=1 skip="$start" count="$size" 2>/dev/null | zcat
-
-    clean_up
-    exit 0
-}
-
-
-usage()
-{
-	echo "  usage: extract-ikconfig [b]zImage_filename"
-}
-
-clean_up()
+# ----------------------------------------------------------------------
+# extract-ikconfig - Extract the .config file from a kernel image
+#
+# This will only work when the kernel was compiled with CONFIG_IKCONFIG.
+#
+# The obscure use of the "tr" filter is to work around older versions of
+# "grep" that report the byte offset of the line instead of the pattern.
+#
+# (c) 2009, Dick Streefland <dick@streefland.net>
+# Licensed under the terms of the GNU General Public License.
+# ----------------------------------------------------------------------
+
+gz1='\037\213\010'
+gz2='01'
+cf1='IKCFG_ST\037\213\010'
+cf2='0123456789'
+
+dump_config()
 {
-	if [ "$TMPFILE" != "" ]; then
-		rm -f $TMPFILE
+	if	pos=`tr "$cf1\n$cf2" "\n$cf2=" < "$1" | grep -abo "^$cf2"`
+	then
+		pos=${pos%%:*}
+		tail -c+$(($pos+8)) "$1" | zcat -q
+		exit 0
 	fi
 }
 
-if [ $# -lt 1 ]
+# Check invocation:
+me=${0##*/}
+img=$1
+if	[ $# -ne 1 -o ! -s "$img" ]
 then
-	usage
-	exit 1
+	echo "Usage: $me <kernel-image>" >&2
+	exit 2
 fi
 
-TMPFILE=`mktemp -t ikconfig-XXXXXX` || exit 1
-image="$1"
-
-# vmlinux: Attempt to dump the configuration from the file directly
-dump_config "$image"
-
-GZHDR1="0x1f 0x8b 0x08 0x00"
-GZHDR2="0x1f 0x8b 0x08 0x08"
-
-ELFHDR="0x7f 0x45 0x4c 0x46"
-
-# vmlinux.gz: Check for a compressed images
-off=`$binoffset "$image" $GZHDR1 2>/dev/null`
-[ "$?" != "0" ] && off="-1"
-if [ "$off" -eq "-1" ]; then
-	off=`$binoffset "$image" $GZHDR2 2>/dev/null`
-	[ "$?" != "0" ] && off="-1"
-fi
-if [ "$off" -eq "0" ]; then
-	zcat <"$image" >"$TMPFILE"
-	dump_config "$TMPFILE"
-elif [ "$off" -ne "-1" ]; then
-	(dd ibs="$off" skip=1 count=0 && dd bs=512k) <"$image" 2>/dev/null | \
-		zcat >"$TMPFILE"
-	dump_config "$TMPFILE"
-
-# check if this is simply an ELF file
-else
-	off=`$binoffset "$image" $ELFHDR 2>/dev/null`
-	[ "$?" != "0" ] && off="-1"
-	if [ "$off" -eq "0" ]; then
-		dump_config "$image"
-	fi
-fi
-
-echo "ERROR: Unable to extract kernel configuration information."
-echo "       This kernel image may not have the config info."
-
-clean_up
+# Initial attempt for uncompressed images or objects:
+dump_config "$img"
+
+# That didn't work, so decompress and try again:
+tmp=/tmp/ikconfig$$
+trap "rm -f $tmp" 0
+for	pos in `tr "$gz1\n$gz2" "\n$gz2=" < "$img" | grep -abo "^$gz2"`
+do
+	pos=${pos%%:*}
+	tail -c+$pos "$img" | zcat 2> /dev/null > $tmp
+	dump_config $tmp
+done
+
+# Bail out:
+echo "$me: Cannot find kernel config." >&2
 exit 1
diff --git a/scripts/gen_initramfs_list.sh b/scripts/gen_initramfs_list.sh
index f3b5c05ced4..5958fffb211 100644
--- a/scripts/gen_initramfs_list.sh
+++ b/scripts/gen_initramfs_list.sh
@@ -243,6 +243,7 @@ case "$arg" in
 		echo "$output_file" | grep -q "\.gz$" && compr="gzip -9 -f"
 		echo "$output_file" | grep -q "\.bz2$" && compr="bzip2 -9 -f"
 		echo "$output_file" | grep -q "\.lzma$" && compr="lzma -9 -f"
+		echo "$output_file" | grep -q "\.lzo$" && compr="lzop -9 -f"
 		echo "$output_file" | grep -q "\.cpio$" && compr="cat"
 		shift
 		;;
diff --git a/scripts/get_maintainer.pl b/scripts/get_maintainer.pl
index 090f2483970..b2281982f52 100755
--- a/scripts/get_maintainer.pl
+++ b/scripts/get_maintainer.pl
@@ -13,7 +13,7 @@
 use strict;
 
 my $P = $0;
-my $V = '0.23';
+my $V = '0.24';
 
 use Getopt::Long qw(:config no_auto_abbrev);
 
@@ -25,6 +25,7 @@ my $email_list = 1;
 my $email_subscriber_list = 0;
 my $email_git_penguin_chiefs = 0;
 my $email_git = 1;
+my $email_git_all_signature_types = 0;
 my $email_git_blame = 0;
 my $email_git_min_signatures = 1;
 my $email_git_max_maintainers = 5;
@@ -41,6 +42,8 @@ my $web = 0;
 my $subsystem = 0;
 my $status = 0;
 my $keywords = 1;
+my $sections = 0;
+my $file_emails = 0;
 my $from_filename = 0;
 my $pattern_depth = 0;
 my $version = 0;
@@ -49,9 +52,9 @@ my $help = 0;
 my $exit = 0;
 
 my @penguin_chief = ();
-push(@penguin_chief,"Linus Torvalds:torvalds\@linux-foundation.org");
+push(@penguin_chief, "Linus Torvalds:torvalds\@linux-foundation.org");
 #Andrew wants in on most everything - 2009/01/14
-#push(@penguin_chief,"Andrew Morton:akpm\@linux-foundation.org");
+#push(@penguin_chief, "Andrew Morton:akpm\@linux-foundation.org");
 
 my @penguin_chief_names = ();
 foreach my $chief (@penguin_chief) {
@@ -61,7 +64,16 @@ foreach my $chief (@penguin_chief) {
 	push(@penguin_chief_names, $chief_name);
     }
 }
-my $penguin_chiefs = "\(" . join("|",@penguin_chief_names) . "\)";
+my $penguin_chiefs = "\(" . join("|", @penguin_chief_names) . "\)";
+
+# Signature types of people who are either
+# 	a) responsible for the code in question, or
+# 	b) familiar enough with it to give relevant feedback
+my @signature_tags = ();
+push(@signature_tags, "Signed-off-by:");
+push(@signature_tags, "Reviewed-by:");
+push(@signature_tags, "Acked-by:");
+my $signaturePattern = "\(" . join("|", @signature_tags) . "\)";
 
 # rfc822 email address - preloaded methods go here.
 my $rfc822_lwsp = "(?:(?:\\r\\n)?[ \\t])";
@@ -74,8 +86,8 @@ my %VCS_cmds;
 my %VCS_cmds_git = (
     "execute_cmd" => \&git_execute_cmd,
     "available" => '(which("git") ne "") && (-d ".git")',
-    "find_signers_cmd" => "git log --since=\$email_git_since -- \$file",
-    "find_commit_signers_cmd" => "git log -1 \$commit",
+    "find_signers_cmd" => "git log --no-color --since=\$email_git_since -- \$file",
+    "find_commit_signers_cmd" => "git log --no-color -1 \$commit",
     "blame_range_cmd" => "git blame -l -L \$diff_start,+\$diff_length \$file",
     "blame_file_cmd" => "git blame -l \$file",
     "commit_pattern" => "^commit [0-9a-f]{40,40}",
@@ -95,9 +107,34 @@ my %VCS_cmds_hg = (
     "blame_commit_pattern" => "^([0-9a-f]+):"
 );
 
+if (-f "${lk_path}.get_maintainer.conf") {
+    my @conf_args;
+    open(my $conffile, '<', "${lk_path}.get_maintainer.conf")
+	or warn "$P: Can't open .get_maintainer.conf: $!\n";
+    while (<$conffile>) {
+	my $line = $_;
+
+	$line =~ s/\s*\n?$//g;
+	$line =~ s/^\s*//g;
+	$line =~ s/\s+/ /g;
+
+	next if ($line =~ m/^\s*#/);
+	next if ($line =~ m/^\s*$/);
+
+	my @words = split(" ", $line);
+	foreach my $word (@words) {
+	    last if ($word =~ m/^#/);
+	    push (@conf_args, $word);
+	}
+    }
+    close($conffile);
+    unshift(@ARGV, @conf_args) if @conf_args;
+}
+
 if (!GetOptions(
 		'email!' => \$email,
 		'git!' => \$email_git,
+		'git-all-signature-types!' => \$email_git_all_signature_types,
 		'git-blame!' => \$email_git_blame,
 		'git-chief-penguins!' => \$email_git_penguin_chiefs,
 		'git-min-signatures=i' => \$email_git_min_signatures,
@@ -120,9 +157,11 @@ if (!GetOptions(
 		'web!' => \$web,
 		'pattern-depth=i' => \$pattern_depth,
 		'k|keywords!' => \$keywords,
+		'sections!' => \$sections,
+		'fe|file-emails!' => \$file_emails,
 		'f|file' => \$from_filename,
 		'v|version' => \$version,
-		'h|help' => \$help,
+		'h|help|usage' => \$help,
 		)) {
     die "$P: invalid argument - use --help if necessary\n";
 }
@@ -137,9 +176,9 @@ if ($version != 0) {
     exit 0;
 }
 
-if ($#ARGV < 0) {
-    usage();
-    die "$P: argument missing: patchfile or -f file please\n";
+if (-t STDIN && !@ARGV) {
+    # We're talking to a terminal, but have no command line arguments.
+    die "$P: missing patchfile or -f file - use --help if necessary\n";
 }
 
 if ($output_separator ne ", ") {
@@ -150,16 +189,24 @@ if ($output_rolestats) {
     $output_roles = 1;
 }
 
-my $selections = $email + $scm + $status + $subsystem + $web;
-if ($selections == 0) {
-    usage();
-    die "$P:  Missing required option: email, scm, status, subsystem or web\n";
+if ($sections) {
+    $email = 0;
+    $email_list = 0;
+    $scm = 0;
+    $status = 0;
+    $subsystem = 0;
+    $web = 0;
+    $keywords = 0;
+} else {
+    my $selections = $email + $scm + $status + $subsystem + $web;
+    if ($selections == 0) {
+	die "$P:  Missing required option: email, scm, status, subsystem or web\n";
+    }
 }
 
 if ($email &&
     ($email_maintainer + $email_list + $email_subscriber_list +
      $email_git + $email_git_penguin_chiefs + $email_git_blame) == 0) {
-    usage();
     die "$P: Please select at least 1 email option\n";
 }
 
@@ -168,13 +215,18 @@ if (!top_of_kernel_tree($lk_path)) {
 	. "a linux kernel source tree.\n";
 }
 
+if ($email_git_all_signature_types) {
+    $signaturePattern = "(.+?)[Bb][Yy]:";
+}
+
 ## Read MAINTAINERS for type/value pairs
 
 my @typevalue = ();
 my %keyword_hash;
 
-open(MAINT, "<${lk_path}MAINTAINERS") || die "$P: Can't open MAINTAINERS\n";
-while (<MAINT>) {
+open (my $maint, '<', "${lk_path}MAINTAINERS")
+    or die "$P: Can't open MAINTAINERS: $!\n";
+while (<$maint>) {
     my $line = $_;
 
     if ($line =~ m/^(\C):\s*(.*)/) {
@@ -199,13 +251,14 @@ while (<MAINT>) {
 	push(@typevalue, $line);
     }
 }
-close(MAINT);
+close($maint);
 
 my %mailmap;
 
 if ($email_remove_duplicates) {
-    open(MAILMAP, "<${lk_path}.mailmap") || warn "$P: Can't open .mailmap\n";
-    while (<MAILMAP>) {
+    open(my $mailmap, '<', "${lk_path}.mailmap")
+	or warn "$P: Can't open .mailmap: $!\n";
+    while (<$mailmap>) {
 	my $line = $_;
 
 	next if ($line =~ m/^\s*#/);
@@ -224,7 +277,7 @@ if ($email_remove_duplicates) {
 	    $mailmap{$name} = \@arr;
 	}
     }
-    close(MAILMAP);
+    close($mailmap);
 }
 
 ## use the filenames on the command line or find the filenames in the patchfiles
@@ -232,31 +285,47 @@ if ($email_remove_duplicates) {
 my @files = ();
 my @range = ();
 my @keyword_tvi = ();
+my @file_emails = ();
+
+if (!@ARGV) {
+    push(@ARGV, "&STDIN");
+}
 
 foreach my $file (@ARGV) {
-    ##if $file is a directory and it lacks a trailing slash, add one
-    if ((-d $file)) {
-	$file =~ s@([^/])$@$1/@;
-    } elsif (!(-f $file)) {
-	die "$P: file '${file}' not found\n";
+    if ($file ne "&STDIN") {
+	##if $file is a directory and it lacks a trailing slash, add one
+	if ((-d $file)) {
+	    $file =~ s@([^/])$@$1/@;
+	} elsif (!(-f $file)) {
+	    die "$P: file '${file}' not found\n";
+	}
     }
     if ($from_filename) {
 	push(@files, $file);
-	if (-f $file && $keywords) {
-	    open(FILE, "<$file") or die "$P: Can't open ${file}\n";
-	    my $text = do { local($/) ; <FILE> };
-	    foreach my $line (keys %keyword_hash) {
-		if ($text =~ m/$keyword_hash{$line}/x) {
-		    push(@keyword_tvi, $line);
+	if (-f $file && ($keywords || $file_emails)) {
+	    open(my $f, '<', $file)
+		or die "$P: Can't open $file: $!\n";
+	    my $text = do { local($/) ; <$f> };
+	    close($f);
+	    if ($keywords) {
+		foreach my $line (keys %keyword_hash) {
+		    if ($text =~ m/$keyword_hash{$line}/x) {
+			push(@keyword_tvi, $line);
+		    }
 		}
 	    }
-	    close(FILE);
+	    if ($file_emails) {
+		my @poss_addr = $text =~ m$[A-Za-zÀ-ÿ\"\' \,\.\+-]*\s*[\,]*\s*[\(\<\{]{0,1}[A-Za-z0-9_\.\+-]+\@[A-Za-z0-9\.-]+\.[A-Za-z0-9]+[\)\>\}]{0,1}$g;
+		push(@file_emails, clean_file_emails(@poss_addr));
+	    }
 	}
     } else {
 	my $file_cnt = @files;
 	my $lastfile;
-	open(PATCH, "<$file") or die "$P: Can't open ${file}\n";
-	while (<PATCH>) {
+
+	open(my $patch, "< $file")
+	    or die "$P: Can't open $file: $!\n";
+	while (<$patch>) {
 	    my $patch_line = $_;
 	    if (m/^\+\+\+\s+(\S+)/) {
 		my $filename = $1;
@@ -276,7 +345,8 @@ foreach my $file (@ARGV) {
 		}
 	    }
 	}
-	close(PATCH);
+	close($patch);
+
 	if ($file_cnt == @files) {
 	    warn "$P: file '${file}' doesn't appear to be a patch.  "
 		. "Add -f to options?\n";
@@ -285,6 +355,8 @@ foreach my $file (@ARGV) {
     }
 }
 
+@file_emails = uniq(@file_emails);
+
 my @email_to = ();
 my @list_to = ();
 my @scm = ();
@@ -314,6 +386,7 @@ foreach my $file (@files) {
 		if ($type eq 'X') {
 		    if (file_match_pattern($file, $value)) {
 			$exclude = 1;
+			last;
 		    }
 		}
 	    }
@@ -340,12 +413,28 @@ foreach my $file (@files) {
 	    }
 	}
 
-	$tvi += ($end - $start);
-
+	$tvi = $end + 1;
     }
 
     foreach my $line (sort {$hash{$b} <=> $hash{$a}} keys %hash) {
 	add_categories($line);
+	    if ($sections) {
+		my $i;
+		my $start = find_starting_index($line);
+		my $end = find_ending_index($line);
+		for ($i = $start; $i < $end; $i++) {
+		    my $line = $typevalue[$i];
+		    if ($line =~ /^[FX]:/) {		##Restore file patterns
+			$line =~ s/([^\\])\.([^\*])/$1\?$2/g;
+			$line =~ s/([^\\])\.$/$1\?/g;	##Convert . back to ?
+			$line =~ s/\\\./\./g;       	##Convert \. to .
+			$line =~ s/\.\*/\*/g;       	##Convert .* to *
+		    }
+		    $line =~ s/^([A-Z]):/$1:\t/g;
+		    print("$line\n");
+		}
+		print("\n");
+	    }
     }
 
     if ($email && $email_git) {
@@ -377,6 +466,14 @@ if ($email) {
 	    }
 	}
     }
+
+    foreach my $email (@file_emails) {
+	my ($name, $address) = parse_email($email);
+
+	my $tmp_email = format_email($name, $address, $email_usename);
+	push_email_address($tmp_email, '');
+	add_role($tmp_email, 'in file');
+    }
 }
 
 if ($email || $email_list) {
@@ -439,13 +536,15 @@ version: $V
 MAINTAINER field selection options:
   --email => print email address(es) if any
     --git => include recent git \*-by: signers
+    --git-all-signature-types => include signers regardless of signature type
+        or use only ${signaturePattern} signers (default: $email_git_all_signature_types)
     --git-chief-penguins => include ${penguin_chiefs}
-    --git-min-signatures => number of signatures required (default: 1)
-    --git-max-maintainers => maximum maintainers to add (default: 5)
-    --git-min-percent => minimum percentage of commits required (default: 5)
+    --git-min-signatures => number of signatures required (default: $email_git_min_signatures)
+    --git-max-maintainers => maximum maintainers to add (default: $email_git_max_maintainers)
+    --git-min-percent => minimum percentage of commits required (default: $email_git_min_percent)
     --git-blame => use git blame to find modified commits for patch or file
-    --git-since => git history to use (default: 1-year-ago)
-    --hg-since => hg history to use (default: -365)
+    --git-since => git history to use (default: $email_git_since)
+    --hg-since => hg history to use (default: $email_hg_since)
     --m => include maintainer(s) if any
     --n => include name 'Full Name <addr\@domain.tld>'
     --l => include list(s) if any
@@ -453,6 +552,7 @@ MAINTAINER field selection options:
     --remove-duplicates => minimize duplicate email names/addresses
     --roles => show roles (status:subsystem, git-signer, list, etc...)
     --rolestats => show roles and statistics (commits/total_commits, %)
+    --file-emails => add email addresses found in -f file (default: 0 (off))
   --scm => print SC