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authorJerome Forissier <jerome.forissier@linaro.org>2017-05-08 15:56:00 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-05-08 17:15:11 -0700
commit75ad8c575a5ad105e2afc2051c68abceb9c65431 (patch)
treeec4e9454fd744e9003337c16ce8a68b747a36f43 /scripts
parent1b4a2ed4c8773524cc7890c4cd57d58b39c049eb (diff)
checkpatch: add --typedefsfile
When using checkpatch on out-of-tree code, it may occur that some project-specific types are used, which will cause spurious warnings. Add the --typedefsfile option as a way to extend the known types and deal with this issue. This was developed for OP-TEE [1]. We run a Travis job on all pull requests [2], and checkpatch is part of that. The typical false warning we get on a regular basis is with some pointers to functions returning TEE_Result [3], which is a typedef from the GlobalPlatform APIs. We consider it is acceptable to use GP types in the OP-TEE core implementation, that's why this patch would be helpful for us. [1] https://github.com/OP-TEE/optee_os [2] https://travis-ci.org/OP-TEE/optee_os/builds [3] https://travis-ci.org/OP-TEE/optee_os/builds/193355335#L1733 Link: http://lkml.kernel.org/r/ba1124d6dfa599bb0dd1d8919dd45dd09ce541a4.1492702192.git.jerome.forissier@linaro.org Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org> Cc: Joe Perches <joe@perches.com> Cc: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'scripts')
-rwxr-xr-xscripts/checkpatch.pl52
1 files changed, 35 insertions, 17 deletions
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index d2c074feaa7d..65bb50076632 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -55,6 +55,7 @@ my $spelling_file = "$D/spelling.txt";
my $codespell = 0;
my $codespellfile = "/usr/share/codespell/dictionary.txt";
my $conststructsfile = "$D/const_structs.checkpatch";
+my $typedefsfile = "";
my $color = 1;
my $allow_c99_comments = 1;
@@ -113,6 +114,7 @@ Options:
--codespell Use the codespell dictionary for spelling/typos
(default:/usr/share/codespell/dictionary.txt)
--codespellfile Use this codespell dictionary
+ --typedefsfile Read additional types from this file
--color Use colors when output is STDOUT (default: on)
-h, --help, --version display this help and exit
@@ -208,6 +210,7 @@ GetOptions(
'test-only=s' => \$tst_only,
'codespell!' => \$codespell,
'codespellfile=s' => \$codespellfile,
+ 'typedefsfile=s' => \$typedefsfile,
'color!' => \$color,
'h|help' => \$help,
'version' => \$help
@@ -629,28 +632,43 @@ if ($codespell) {
$misspellings = join("|", sort keys %spelling_fix) if keys %spelling_fix;
-my $const_structs = "";
-if (open(my $conststructs, '<', $conststructsfile)) {
- while (<$conststructs>) {
- my $line = $_;
+sub read_words {
+ my ($wordsRef, $file) = @_;
- $line =~ s/\s*\n?$//g;
- $line =~ s/^\s*//g;
+ if (open(my $words, '<', $file)) {
+ while (<$words>) {
+ my $line = $_;
- next if ($line =~ m/^\s*#/);
- next if ($line =~ m/^\s*$/);
- if ($line =~ /\s/) {
- print("$conststructsfile: '$line' invalid - ignored\n");
- next;
- }
+ $line =~ s/\s*\n?$//g;
+ $line =~ s/^\s*//g;
- $const_structs .= '|' if ($const_structs ne "");
- $const_structs .= $line;
+ next if ($line =~ m/^\s*#/);
+ next if ($line =~ m/^\s*$/);
+ if ($line =~ /\s/) {
+ print("$file: '$line' invalid - ignored\n");
+ next;
+ }
+
+ $$wordsRef .= '|' if ($$wordsRef ne "");
+ $$wordsRef .= $line;
+ }
+ close($file);
+ return 1;
}
- close($conststructsfile);
-} else {
- warn "No structs that should be const will be found - file '$conststructsfile': $!\n";
+
+ return 0;
+}
+
+my $const_structs = "";
+read_words(\$const_structs, $conststructsfile)
+ or warn "No structs that should be const will be found - file '$conststructsfile': $!\n";
+
+my $typeOtherTypedefs = "";
+if (length($typedefsfile)) {
+ read_words(\$typeOtherTypedefs, $typedefsfile)
+ or warn "No additional types will be considered - file '$typedefsfile': $!\n";
}
+$typeTypedefs .= '|' . $typeOtherTypedefs if ($typeOtherTypedefs ne "");
sub build_types {
my $mods = "(?x: \n" . join("|\n ", (@modifierList, @modifierListFile)) . "\n)";

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