+ checkpatch-improve-octal-permission-test.patch added to -mm tree

+ checkpatch-improve-octal-permission-test.patch added to -mm tree

[akpm]

The patch titled
     Subject: checkpatch: improve octal permission test
has been added to the -mm tree.  Its filename is
     checkpatch-improve-octal-permission-test.patch

This patch should soon appear at
    http://ozlabs.org/~akpm/mmots/broken-out/checkpatch-improve-octal-permission-test.patch
and later at
    http://ozlabs.org/~akpm/mmotm/broken-out/checkpatch-improve-octal-permission-test.patch

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------------------------------------------------------
From: Joe Perches <joe@perches.com>
Subject: checkpatch: improve octal permission test

The function calls with octal permissions commonly span multiple lines. 
The current test is line oriented and fails to find some matches.

Make the test use the $stat variable instead of the $line variable to
span multiple lines.

Link: http://lkml.kernel.org/r/eb276b5a9de12256694ad31c806dbe8c7ee3ef8c.1474999653.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 scripts/checkpatch.pl |   23 +++++++++++++++++------
 1 file changed, 17 insertions(+), 6 deletions(-)

diff -puN scripts/checkpatch.pl~checkpatch-improve-octal-permission-test scripts/checkpatch.pl
--- a/scripts/checkpatch.pl~checkpatch-improve-octal-permission-test
+++ a/scripts/checkpatch.pl
@@ -6092,28 +6092,36 @@ sub process {
 # Mode permission misuses where it seems decimal should be octal
 # This uses a shortcut match to avoid unnecessary uses of a slow foreach loop
 		if ($^V && $^V ge 5.10.0 &&
-		    $line =~ /$mode_perms_search/) {
+		    defined $stat &&
+		    $stat =~ /^.\s*$mode_perms_search/) {
 			foreach my $entry (@mode_permission_funcs) {
 				my $func = $entry->[0];
 				my $arg_pos = $entry->[1];
 
+				my $lc = $stat =~ tr@\n@@;
+				$lc = $lc + $linenr;
+				my $stat_real = raw_line($linenr, 0);
+				for (my $count = $linenr + 1; $count <= $lc; $count++) {
+					$stat_real = $stat_real . "\n" . raw_line($count, 0);
+				}
+
 				my $skip_args = "";
 				if ($arg_pos > 1) {
 					$arg_pos--;
 					$skip_args = "(?:\\s*$FuncArg\\s*,\\s*){$arg_pos,$arg_pos}";
 				}
 				my $test = "\\b$func\\s*\\(${skip_args}($FuncArg(?:\\|\\s*$FuncArg)*)\\s*[,\\)]";
-				if ($line =~ /$test/) {
+				if ($stat =~ /$test/) {
 					my $val = $1;
 					$val = $6 if ($skip_args ne "");
 					if (($val =~ /^$Int$/ && $val !~ /^$Octal$/) ||
 					    ($val =~ /^$Octal$/ && length($val) ne 4)) {
 						ERROR("NON_OCTAL_PERMISSIONS",
-						      "Use 4 digit octal (0777) not decimal permissions\n" . $herecurr);
+						      "Use 4 digit octal (0777) not decimal permissions\n" . $stat_real);
 					}
 					if ($val =~ /^$Octal$/ && (oct($val) & 02)) {
 						ERROR("EXPORTED_WORLD_WRITABLE",
-						      "Exporting writable files is usually an error. Consider more restrictive permissions.\n" . $herecurr);
+						      "Exporting writable files is usually an error. Consider more restrictive permissions.\n" . $stat_real);
 					}
 					if ($val =~ /\b$mode_perms_string_search\b/) {
 						my $to = 0;
@@ -6122,9 +6130,12 @@ sub process {
 						}
 						my $new = sprintf("%04o", $to);
 						if (WARN("SYMBOLIC_PERMS",
-							 "Symbolic permissions are not preferred. Consider using octal permissions $new.\n" . $herecurr) &&
+							 "Symbolic permissions are not preferred. Consider using octal permissions $new.\n" . $stat_real) &&
 						    $fix) {
-							$fixed[$fixlinenr] =~ s/\Q$val\E/$new/;
+							$lc = $stat =~ tr@\n@@;
+							for (my $count = $fixlinenr; $count <= $fixlinenr + $lc; $count++) {
+								$fixed[$count] =~ s/\Q$val\E/$new/;
+							}
 						}
 					}
 				}
_

Patches currently in -mm which might be from joe@perches.com are

seq-proc-modify-seq_put_decimal_ll-to-take-a-const-char-not-char.patch
meminfo-break-apart-a-very-long-seq_printf-with-ifdefs.patch
spellingtxt-modeled-is-spelt-correctly.patch
checkpatch-see-if-modified-files-are-marked-obsolete-in-maintainers.patch
checkpatch-look-for-symbolic-permissions-and-suggest-octal-instead.patch
checkpatch-test-multiple-line-block-comment-alignment.patch
checkpatch-dont-test-for-prefer-ether_addr_foo.patch
checkpatch-externalize-the-structs-that-should-be-const.patch
const_structscheckpatch-add-frequently-used-from-julia-lawalls-list.patch
checkpatch-speed-up-checking-for-filenames-in-sections-marked-obsolete.patch
checkpatch-improve-the-block-comment-alignment-test.patch
checkpatch-add-strict-test-for-macro-argument-reuse.patch
checkpatch-add-strict-test-for-precedence-challenged-macro-arguments.patch
checkpatch-improve-macro_arg_precedence-test.patch
checkpatch-add-warning-for-unnamed-function-definition-arguments.patch
checkpatch-improve-octal-permission-test.patch