#ifndef _M68K_TLBFLUSH_H #define _M68K_TLBFLUSH_H #ifndef CONFIG_SUN3 #include static inline void flush_tlb_kernel_page(void *addr) { if (CPU_IS_040_OR_060) { mm_segment_t old_fs = get_fs(); set_fs(KERNEL_DS); __asm__ __volatile__(".chip 68040\n\t" "pflush (%0)\n\t" ".chip 68k" : : "a" (addr)); set_fs(old_fs); } else __asm__ __volatile__("pflush #4,#4,(%0)" : : "a" (addr)); } /* * flush all user-space atc entries. */ static inline void __flush_tlb(void) { if (CPU_IS_040_OR_060) __asm__ __volatile__(".chip 68040\n\t" "pflushan\n\t" ".chip 68k"); else __asm__ __volatile__("pflush #0,#4"); } static inline void __flush_tlb040_one(unsigned long addr) { __asm__ __volatile__(".chip 68040\n\t" "pflush (%0)\n\t" ".chip 68k" : : "a" (addr)); } static inline void __flush_tlb_one(unsigned long addr) { if (CPU_IS_040_OR_060) __flush_tlb040_one(addr); else __asm__ __volatile__("pflush #0,#4,(%0)" : : "a" (addr)); } #define flush_tlb() __flush_tlb() /* * flush all atc entries (both kernel and user-space entries). */ static inline void flush_tlb_all(void) { if (CPU_IS_040_OR_060) __asm__ __volatile__(".chip 68040\n\t" "pflusha\n\t" ".chip 68k"); else __asm__ __volatile__("pflusha"); } static inline void flush_tlb_mm(struct mm_struct *mm) { if (mm == current->active_mm) __flush_tlb(); } static inline void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr) { if (vma->vm_mm == current->active_mm) { mm_segment_t old_fs = get_fs(); set_fs(USER_DS); __flush_tlb_one(addr); set_fs(old_fs); } } static inline void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end) { if (vma->vm_mm == current->active_mm) __flush_tlb(); } static inline void flush_tlb_kernel_range(unsigned long start, unsigned long end) { flush_tlb_all(); } #else /* Reserved PMEGs. */ extern char sun3_reserved_pmeg[SUN3_PMEGS_NUM]; extern unsigned long pmeg_vaddr[SUN3_PMEGS_NUM]; extern unsigned char pmeg_alloc[SUN3_PMEGS_NUM]; extern unsigned char pmeg_ctx[SUN3_PMEGS_NUM]; /* Flush all userspace mappings one by one... (why no flush command, sun?) */ static inline void flush_tlb_all(void) { unsigned long addr; unsigned char ctx, oldctx; oldctx = sun3_get_context(); for(addr = 0x00000000; addr < TASK_SIZE; addr += SUN3_PMEG_SIZE) { for(ctx = 0; ctx < 8; ctx++) { sun3_put_context(ctx); sun3_put_segmap(addr, SUN3_INVALID_PMEG); } } sun3_put_context(oldctx); /* erase all of the userspace pmeg maps, we've clobbered them all anyway */ for(addr = 0; addr < SUN3_INVALID_PMEG; addr++) { if(pmeg_alloc[addr] == 1) { pmeg_alloc[addr] = 0; pmeg_ctx[addr] = 0; pmeg_vaddr[addr] = 0; } } } /* Clear user TLB entries within the context named in mm */ static inline void flush_tlb_mm (struct mm_struct *mm) { unsigned char oldctx; unsigned char seg; unsigned long i; oldctx = sun3_get_context(); sun3_put_context(mm->context); for(i = 0; i < TASK_SIZE; i += SUN3_PMEG_SIZE) { seg = sun3_get_segmap(i); if(seg == SUN3_INVALID_PMEG) continue; sun3_put_segmap(i, SUN3_INVALID_PMEG); pmeg_alloc[seg] = 0; pmeg_ctx[seg] = 0; pmeg_vaddr[seg] = 0; } sun3_put_context(oldctx); } /* Flush a single TLB page. In this case, we're limited to flushing a single PMEG */ static inline void flush_tlb_page (struct vm_area_struct *vma, unsigned long addr) { unsigned char oldctx; unsigned char i; oldctx = sun3_get_context(); sun3_put_context(vma->vm_mm->context); addr &= ~SUN3_PMEG_MASK; if((i = sun3_get_segmap(addr)) != SUN3_INVALID_PMEG) { pmeg_alloc[i] = 0; pmeg_ctx[i] = 0; pmeg_vaddr[i] = 0; sun3_put_segmap (addr, SUN3_INVALID_PMEG); } sun3_put_context(oldctx); } /* Flush a range of pages from TLB. */ static inline void flush_tlb_range (struct vm_area_struct *vma, unsigned long start, unsigned long end) { struct mm_struct *mm = vma->vm_mm; unsigned char seg, oldctx; start &= ~SUN3_PMEG_MASK; oldctx = sun3_get_context(); sun3_put_context(mm->context); while(start < end) { if((seg = sun3_get_segmap(start)) == SUN3_INVALID_PMEG) goto next; if(pmeg_ctx[seg] == mm->context) { pmeg_alloc[seg] = 0; pmeg_ctx[seg] = 0; pmeg_vaddr[seg] = 0; } sun3_put_segmap(start, SUN3_INVALID_PMEG); next: start += SUN3_PMEG_SIZE; } } static inline void flush_tlb_kernel_range(unsigned long start, unsigned long end) { flush_tlb_all(); } /* Flush kernel page from TLB. */ static inline void flush_tlb_kernel_page (unsigned long addr) { sun3_put_segmap (addr & ~(SUN3_PMEG_SIZE - 1), SUN3_INVALID_PMEG); } #endif #endif /* _M68K_TLBFLUSH_H */ 5'>35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 
#!/usr/bin/perl -w
# (c) 2007, Joe Perches <joe@perches.com>
#           created from checkpatch.pl
#
# Print selected MAINTAINERS information for
# the files modified in a patch or for a file
#
# usage: perl scripts/get_maintainers.pl [OPTIONS] <patch>
#        perl scripts/get_maintainers.pl [OPTIONS] -f <file>
#
# Licensed under the terms of the GNU GPL License version 2

use strict;

my $P = $0;
my $V = '0.20';

use Getopt::Long qw(:config no_auto_abbrev);

my $lk_path = "./";
my $email = 1;
my $email_usename = 1;
my $email_maintainer = 1;
my $email_list = 1;
my $email_subscriber_list = 0;
my $email_git = 1;
my $email_git_penguin_chiefs = 0;
my $email_git_min_signatures = 1;
my $email_git_max_maintainers = 5;
my $email_git_min_percent = 5;
my $email_git_since = "1-year-ago";
my $email_git_blame = 0;
my $email_remove_duplicates = 1;
my $output_multiline = 1;
my $output_separator = ", ";
my $scm = 0;
my $web = 0;
my $subsystem = 0;
my $status = 0;
my $from_filename = 0;
my $pattern_depth = 0;
my $version = 0;
my $help = 0;

my $exit = 0;

my @penguin_chief = ();
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");

my @penguin_chief_names = ();
foreach my $chief (@penguin_chief) {
    if ($chief =~ m/^(.*):(.*)/) {
	my $chief_name = $1;
	my $chief_addr = $2;
	push(@penguin_chief_names, $chief_name);
    }
}
my $penguin_chiefs = "\(" . join("|",@penguin_chief_names) . "\)";

# rfc822 email address - preloaded methods go here.
my $rfc822_lwsp = "(?:(?:\\r\\n)?[ \\t])";
my $rfc822_char = '[\\000-\\377]';

if (!GetOptions(
		'email!' => \$email,
		'git!' => \$email_git,
		'git-chief-penguins!' => \$email_git_penguin_chiefs,
		'git-min-signatures=i' => \$email_git_min_signatures,
		'git-max-maintainers=i' => \$email_git_max_maintainers,
		'git-min-percent=i' => \$email_git_min_percent,
		'git-since=s' => \$email_git_since,
		'git-blame!' => \$email_git_blame,
		'remove-duplicates!' => \$email_remove_duplicates,
		'm!' => \$email_maintainer,
		'n!' => \$email_usename,
		'l!' => \$email_list,
		's!' => \$email_subscriber_list,
		'multiline!' => \$output_multiline,
		'separator=s' => \$output_separator,
		'subsystem!' => \$subsystem,
		'status!' => \$status,
		'scm!' => \$scm,
		'web!' => \$web,
		'pattern-depth=i' => \$pattern_depth,
		'f|file' => \$from_filename,
		'v|version' => \$version,
		'h|help' => \$help,
		)) {
    usage();
    die "$P: invalid argument\n";
}

if ($help != 0) {
    usage();
    exit 0;
}

if ($version != 0) {
    print("${P} ${V}\n");
    exit 0;
}

if ($#ARGV < 0) {
    usage();
    die "$P: argument missing: patchfile or -f file please\n";
}

if ($output_separator ne ", ") {
    $output_multiline = 0;
}

my $selections = $email + $scm + $status + $subsystem + $web;
if ($selections == 0) {
    usage();
    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";
}

if (!top_of_kernel_tree($lk_path)) {
    die "$P: The current directory does not appear to be "
	. "a linux kernel source tree.\n";
}

## Read MAINTAINERS for type/value pairs

my @typevalue = ();
open(MAINT, "<${lk_path}MAINTAINERS") || die "$P: Can't open MAINTAINERS\n";
while (<MAINT>) {
    my $line = $_;

    if ($line =~ m/^(\C):\s*(.*)/) {
	my $type = $1;
	my $value = $2;

	##Filename pattern matching
	if ($type eq "F" || $type eq "X") {
	    $value =~ s@\.@\\\.@g;       ##Convert . to \.
	    $value =~ s/\*/\.\*/g;       ##Convert * to .*
	    $value =~ s/\?/\./g;         ##Convert ? to .
	    ##if pattern is a directory and it lacks a trailing slash, add one
	    if ((-d $value)) {
		$value =~ s@([^/])$@$1/@;
	    }
	}
	push(@typevalue, "$type:$value");
    } elsif (!/^(\s)*$/) {
	$line =~ s/\n$//g;
	push(@typevalue, $line);
    }
}
close(MAINT);

my %mailmap;

if ($email_remove_duplicates) {
    open(MAILMAP, "<${lk_path}.mailmap") || warn "$P: Can't open .mailmap\n";
    while (<MAILMAP>) {
	my $line = $_;

	next if ($line =~ m/^\s*#/);
	next if ($line =~ m/^\s*$/);

	my ($name, $address) = parse_email($line);
	$line = format_email($name, $address);

	next if ($line =~ m/^\s*$/);

	if (exists($mailmap{$name})) {
	    my $obj = $mailmap{$name};
	    push(@$obj, $address);
	} else {
	    my @arr = ($address);
	    $mailmap{$name} = \@arr;
	}
    }
    close(MAILMAP);
}

## use the filenames on the command line or find the filenames in the patchfiles

my @files = ();
my @range = ();

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 '${file}' not found\n";
    }
    if ($from_filename) {
	push(@files, $file);
    } else {
	my $file_cnt = @files;
	my $lastfile;
	open(PATCH, "<$file") or die "$P: Can't open ${file}\n";
	while (<PATCH>) {
	    if (m/^\+\+\+\s+(\S+)/) {
		my $filename = $1;
		$filename =~ s@^[^/]*/@@;
		$filename =~ s@\n@@;
		$lastfile = $filename;
		push(@files, $filename);
	    } elsif (m/^\@\@ -(\d+),(\d+)/) {
		if ($email_git_blame) {
		    push(@range, "$lastfile:$1:$2");
		}
	    }
	}
	close(PATCH);
	if ($file_cnt == @files) {
	    warn "$P: file '${file}' doesn't appear to be a patch.  "
		. "Add -f to options?\n";
	}
	@files = sort_and_uniq(@files);
    }
}

my @email_to = ();
my @list_to = ();
my @scm = ();
my @web = ();
my @subsystem = ();
my @status = ();

# Find responsible parties

foreach my $file (@files) {

#Do not match excluded file patterns

    my $exclude = 0;
    foreach my $line (@typevalue) {
	if ($line =~ m/^(\C):\s*(.*)/) {
	    my $type = $1;
	    my $value = $2;
	    if ($type eq 'X') {
		if (file_match_pattern($file, $value)) {
		    $exclude = 1;
		    last;
		}
	    }
	}
    }

    if (!$exclude) {
	my $tvi = 0;
	my %hash;
	foreach my $line (@typevalue) {
	    if ($line =~ m/^(\C):\s*(.*)/) {
		my $type = $1;
		my $value = $2;
		if ($type eq 'F') {
		    if (file_match_pattern($file, $value)) {
			my $value_pd = ($value =~ tr@/@@);
			my $file_pd = ($file  =~ tr@/@@);
			$value_pd++ if (substr($value,-1,1) ne "/");
			if ($pattern_depth == 0 ||
			    (($file_pd - $value_pd) < $pattern_depth)) {
			    $hash{$tvi} = $value_pd;
			}
		    }
		}
	    }
	    $tvi++;
	}
	foreach my $line (sort {$hash{$b} <=> $hash{$a}} keys %hash) {
	    add_categories($line);
	}
    }

    if ($email && $email_git) {
	recent_git_signoffs($file);
    }

    if ($email && $email_git_blame) {
	git_assign_blame($file);
    }
}

if ($email) {
    foreach my $chief (@penguin_chief) {
	if ($chief =~ m/^(.*):(.*)/) {
	    my $email_address;

	    $email_address = format_email($1, $2);
	    if ($email_git_penguin_chiefs) {
		push(@email_to, $email_address);
	    } else {
		@email_to = grep(!/${email_address}/, @email_to);
	    }
	}
    }
}

if ($email || $email_list) {
    my @to = ();
    if ($email) {
	@to = (@to, @email_to);
    }
    if ($email_list) {
	@to = (@to, @list_to);
    }
    output(uniq(@to));
}

if ($scm) {
    @scm = sort_and_uniq(@scm);
    output(@scm);
}

if ($status) {
    @status = sort_and_uniq(@status);
    output(@status);
}

if ($subsystem) {
    @subsystem = sort_and_uniq(@subsystem);
    output(@subsystem);
}

if ($web) {
    @web = sort_and_uniq(@web);
    output(@web);
}

exit($exit);

sub file_match_pattern {
    my ($file, $pattern) = @_;
    if (substr($pattern, -1) eq "/") {
	if ($file =~ m@^$pattern@) {
	    return 1;
	}
    } else {
	if ($file =~ m@^$pattern@) {
	    my $s1 = ($file =~ tr@/@@);
	    my $s2 = ($pattern =~ tr@/@@);
	    if ($s1 == $s2) {
		return 1;
	    }
	}
    }
    return 0;
}

sub usage {
    print <<EOT;
usage: $P [options] patchfile
       $P [options] -f file|directory
version: $V

MAINTAINER field selection options:
  --email => print email address(es) if any
    --git => include recent git \*-by: signers
    --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-since => git history to use (default: 1-year-ago)
    --git-blame => use git blame to find modified commits for patch or file
    --m => include maintainer(s) if any
    --n => include name 'Full Name <addr\@domain.tld>'
    --l => include list(s) if any
    --s => include subscriber only list(s) if any
    --remove-duplicates => minimize duplicate email names/addresses
  --scm => print SCM tree(s) if any
  --status => print status if any
  --subsystem => print subsystem name if any
  --web => print website(s) if any

Output type options:
  --separator [, ] => separator for multiple entries on 1 line
    using --separator also sets --nomultiline if --separator is not [, ]
  --multiline => print 1 entry per line

Other options:
  --pattern-depth => Number of pattern directory traversals (default: 0 (all))
  --version => show version
  --help => show this help information

Default options:
  [--email --git --m --n --l --multiline --pattern-depth=0 --remove-duplicates]

Notes:
  Using "-f directory" may give unexpected results:
      Used with "--git", git signators for _all_ files in and below
          directory are examined as git recurses directories.
          Any specified X: (exclude) pattern matches are _not_ ignored.
      Used with "--nogit", directory is used as a pattern match,
         no individual file within the directory or subdirectory
         is matched.
      Used with "--git-blame", does not iterate all files in directory
  Using "--git-blame" is slow and may add old committers and authors
      that are no longer active maintainers to the output.
EOT
}

sub top_of_kernel_tree {
	my ($lk_path) = @_;

	if ($lk_path ne "" && substr($lk_path,length($lk_path)-1,1) ne "/") {
	    $lk_path .= "/";
	}
	if (   (-f "${lk_path}COPYING")
	    && (-f "${lk_path}CREDITS")
	    && (-f "${lk_path}Kbuild")
	    && (-f "${lk_path}MAINTAINERS")
	    && (-f "${lk_path}Makefile")
	    && (-f "${lk_path}README")
	    && (-d "${lk_path}Documentation")
	    && (-d "${lk_path}arch")
	    && (-d "${lk_path}include")
	    && (-d "${lk_path}drivers")
	    && (-d "${lk_path}fs")
	    && (-d "${lk_path}init")
	    && (-d "${lk_path}ipc")
	    && (-d "${lk_path}kernel")
	    && (-d "${lk_path}lib")
	    && (-d "${lk_path}scripts")) {
		return 1;
	}
	return 0;
}

sub parse_email {
    my ($formatted_email) = @_;

    my $name = "";
    my $address = "";

    if ($formatted_email =~ /^([^<]+)<(.+\@.*)>.*$/) {
	$name = $1;
	$address = $2;
    } elsif ($formatted_email =~ /^\s*<(.+\@\S*)>.*$/) {
	$address = $1;
    } elsif ($formatted_email =~ /^(.+\@\S*)$/) {
	$address = $1;
    }

    $name =~ s/^\s+|\s+$//g;
    $name =~ s/^\"|\"$//g;
    $address =~ s/^\s+|\s+$//g;

    if ($name =~ /[^a-z0-9 \.\-]/i) {    ##has "must quote" chars
	$name =~ s/(?<!\\)"/\\"/g;       ##escape quotes
	$name = "\"$name\"";
    }

    return ($name, $address);
}

sub format_email {
    my ($name, $address) = @_;

    my $formatted_email;

    $name =~ s/^\s+|\s+$//g;
    $name =~ s/^\"|\"$//g;
    $address =~ s/^\s+|\s+$//g;

    if ($name =~ /[^a-z0-9 \.\-]/i) {    ##has "must quote" chars
	$name =~ s/(?<!\\)"/\\"/g;       ##escape quotes
	$name = "\"$name\"";
    }

    if ($email_usename) {
	if ("$name" eq "") {
	    $formatted_email = "$address";
	} else {
	    $formatted_email = "$name <${address}>";
	}
    } else {
	$formatted_email = $address;
    }

    return $formatted_email;
}

sub add_categories {
    my ($index) = @_;

    $index = $index - 1;
    while ($index >= 0) {
	my $tv = $typevalue[$index];
	if ($tv =~ m/^(\C):\s*(.*)/) {
	    my $ptype = $1;
	    my $pvalue = $2;
	    if ($ptype eq "L") {
		my $list_address = $pvalue;
		my $list_additional = "";
		if ($list_address =~ m/([^\s]+)\s+(.*)$/) {
		    $list_address = $1;
		    $list_additional = $2;
		}
		if ($list_additional =~ m/subscribers-only/) {
		    if ($email_subscriber_list) {
			push(@list_to, $list_address);
		    }
		} else {
		    if ($email_list) {
			push(@list_to, $list_address);
		    }
		}
	    } elsif ($ptype eq "M") {
		my ($name, $address) = parse_email($pvalue);
		if ($name eq "") {
		    if ($index >= 0) {
			my $tv = $typevalue[$index - 1];
			if ($tv =~ m/^(\C):\s*(.*)/) {
			    if ($1 eq "P") {
				$name = $2;
			    }
			}
		    }
		}
		if ($email_maintainer) {
		    push_email_addresses($pvalue);
		}
	    } elsif ($ptype eq "T") {
		push(@scm, $pvalue);
	    } elsif ($ptype eq "W") {
		push(@web, $pvalue);
	    } elsif ($ptype eq "S") {
		push(@status, $pvalue);
	    }

	    $index--;
	} else {
	    push(@subsystem,$tv);
	    $index = -1;
	}
    }
}

my %email_hash_name;
my %email_hash_address;

sub email_inuse {
    my ($name, $address) = @_;

    return 1 if (($name eq "") && ($address eq ""));
    return 1 if (($name ne "") && exists($email_hash_name{$name}));
    return 1 if (($address ne "") && exists($email_hash_address{$address}));

    return 0;
}

sub push_email_address {
    my ($line) = @_;

    my ($name, $address) = parse_email($line);

    if (!$email_remove_duplicates) {
	push(@email_to, format_email($name, $address));
    } elsif (!email_inuse($name, $address)) {
	push(@email_to, format_email($name, $address));
	$email_hash_name{$name}++;
	$email_hash_address{$address}++;
    }
}

sub push_email_addresses {
    my ($address) = @_;

    my @address_list = ();

    if (rfc822_valid($address)) {
	push_email_address($address);
    } elsif (@address_list = rfc822_validlist($address)) {
	my $array_count = shift(@address_list);
	while (my $entry = shift(@address_list)) {
	    push_email_address($entry);
	}
    } else {
	warn("Invalid MAINTAINERS address: '" . $address . "'\n");
    }
}

sub which {
    my ($bin) = @_;

    foreach my $path (split(/:/, $ENV{PATH})) {
	if (-e "$path/$bin") {
	    return "$path/$bin";
	}
    }

    return "";
}

sub mailmap {
    my @lines = @_;
    my %hash;

    foreach my $line (@lines) {
	my ($name, $address) = parse_email($line);
	if (!exists($hash{$name})) {
	    $hash{$name} = $address;
	} elsif ($address ne $hash{$name}) {
	    $address = $hash{$name};
	    $line = format_email($name, $address);
	}
	if (exists($mailmap{$name})) {
	    my $obj = $mailmap{$name};
	    foreach my $map_address (@$obj) {
		if (($map_address eq $address) &&
		    ($map_address ne $hash{$name})) {
		    $line = format_email($name, $hash{$name});
		}
	    }
	}
    }

    return @lines;
}

sub recent_git_signoffs {
    my ($file) = @_;

    my $sign_offs = "";
    my $cmd = "";
    my $output = "";
    my $count = 0;
    my @lines = ();
    my %hash;
    my $total_sign_offs;

    if (which("git") eq "") {
	warn("$P: git not found.  Add --nogit to options?\n");
	return;
    }
    if (!(-d ".git")) {
	warn("$P: .git directory not found.  Use a git repository for better results.\n");
	warn("$P: perhaps 'git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git'\n");
	return;
    }

    $cmd = "git log --since=${email_git_since} -- ${file}";

    $output = `${cmd}`;
    $output =~ s/^\s*//gm;

    @lines = split("\n", $output);

    @lines = grep(/^[-_ 	a-z]+by:.*\@.*$/i, @lines);
    if (!$email_git_penguin_chiefs) {
	@lines = grep(!/${penguin_chiefs}/i, @lines);
    }
    # cut -f2- -d":"
    s/.*:\s*(.+)\s*/$1/ for (@lines);

    $total_sign_offs = @lines;

    if ($email_remove_duplicates) {
	@lines = mailmap(@lines);
    }

    @lines = sort(@lines);

    # uniq -c
    $hash{$_}++ for @lines;

    # sort -rn
    foreach my $line (sort {$hash{$b} <=> $hash{$a}} keys %hash) {
	my $sign_offs = $hash{$line};
	$count++;
	last if ($sign_offs < $email_git_min_signatures ||
		 $count > $email_git_max_maintainers ||
		 $sign_offs * 100 / $total_sign_offs < $email_git_min_percent);
	push_email_address($line);
    }
}

sub save_commits {
    my ($cmd, @commits) = @_;
    my $output;
    my @lines = ();

    $output = `${cmd}`;

    @lines = split("\n", $output);
    foreach my $line (@lines) {
	if ($line =~ m/^(\w+) /) {
	    push (@commits, $1);
	}
    }
    return @commits;
}

sub git_assign_blame {
    my ($file) = @_;

    my @lines = ();
    my @commits = ();
    my $cmd;
    my $output;
    my %hash;
    my $total_sign_offs;
    my $count;

    if (@range) {
	foreach my $file_range_diff (@range) {
	    next if (!($file_range_diff =~ m/(.+):(.+):(.+)/));
	    my $diff_file = $1;
	    my $diff_start = $2;
	    my $diff_length = $3;
	    next if (!("$file" eq "$diff_file"));
	    $cmd = "git blame -l -L $diff_start,+$diff_length $file";
	    @commits = save_commits($cmd, @commits);
	}
    } else {
	if (-f $file) {
	    $cmd = "git blame -l $file";
	    @commits = save_commits($cmd, @commits);
	}
    }

    $total_sign_offs = 0;
    @commits = uniq(@commits);
    foreach my $commit (@commits) {