checkpatch.pl: Update to v5.7
Keep the U-Boot changes to $logFunctions Signed-off-by: Simon Glass <sjg@chromium.org> [trini: Resync with v5.7 release which changed the default max line length, update commit to reflect] Signed-off-by: Tom Rini <trini@konsulko.com>
This commit is contained in:
Simon Glass
Tom Rini
parent
68ff234331
commit
048a648298
@ -51,7 +51,7 @@ my %ignore_type = ();
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my @ignore = ();
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my $help = 0;
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my $configuration_file = ".checkpatch.conf";
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my $max_line_length = 80;
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my $max_line_length = 100;
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my $ignore_perl_version = 0;
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my $minimum_perl_version = 5.10.0;
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my $min_conf_desc_length = 4;
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@ -61,9 +61,7 @@ my $codespellfile = "/usr/share/codespell/dictionary.txt";
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my $conststructsfile = "$D/const_structs.checkpatch";
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my $typedefsfile = "";
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my $color = "auto";
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my $allow_c99_comments = 1; # Can be overridden by --ignore C99_COMMENT_TOLERANCE
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# git output parsing needs US English output, so first set backtick child process LANGUAGE
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my $git_command ='export LANGUAGE=en_US.UTF-8; git';
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my $allow_c99_comments = 1;
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sub help {
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my ($exitcode) = @_;
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@ -96,7 +94,9 @@ Options:
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--types TYPE(,TYPE2...) show only these comma separated message types
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--ignore TYPE(,TYPE2...) ignore various comma separated message types
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--show-types show the specific message type in the output
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--max-line-length=n set the maximum line length, if exceeded, warn
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--max-line-length=n set the maximum line length, (default $max_line_length)
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if exceeded, warn on patches
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requires --strict for use with --file
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--min-conf-desc-length=n set the min description length, if shorter, warn
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--root=PATH PATH to the kernel tree root
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--no-summary suppress the per-file summary
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@ -470,19 +470,8 @@ our $logFunctions = qr{(?x:
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seq_vprintf|seq_printf|seq_puts
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)};
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our $allocFunctions = qr{(?x:
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(?:(?:devm_)?
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(?:kv|k|v)[czm]alloc(?:_node|_array)? |
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kstrdup(?:_const)? |
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kmemdup(?:_nul)?) |
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(?:\w+)?alloc_skb(?:ip_align)? |
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# dev_alloc_skb/netdev_alloc_skb, et al
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dma_alloc_coherent
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)};
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our $signature_tags = qr{(?xi:
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Signed-off-by:|
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Co-developed-by:|
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Acked-by:|
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Tested-by:|
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Reviewed-by:|
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@ -588,27 +577,6 @@ foreach my $entry (@mode_permission_funcs) {
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}
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$mode_perms_search = "(?:${mode_perms_search})";
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our %deprecated_apis = (
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"synchronize_rcu_bh" => "synchronize_rcu",
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"synchronize_rcu_bh_expedited" => "synchronize_rcu_expedited",
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"call_rcu_bh" => "call_rcu",
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"rcu_barrier_bh" => "rcu_barrier",
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"synchronize_sched" => "synchronize_rcu",
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"synchronize_sched_expedited" => "synchronize_rcu_expedited",
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"call_rcu_sched" => "call_rcu",
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"rcu_barrier_sched" => "rcu_barrier",
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"get_state_synchronize_sched" => "get_state_synchronize_rcu",
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"cond_synchronize_sched" => "cond_synchronize_rcu",
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);
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#Create a search pattern for all these strings to speed up a loop below
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our $deprecated_apis_search = "";
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foreach my $entry (keys %deprecated_apis) {
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$deprecated_apis_search .= '|' if ($deprecated_apis_search ne "");
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$deprecated_apis_search .= $entry;
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}
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$deprecated_apis_search = "(?:${deprecated_apis_search})";
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our $mode_perms_world_writable = qr{
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S_IWUGO |
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S_IWOTH |
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@ -908,7 +876,7 @@ sub seed_camelcase_includes {
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$camelcase_seeded = 1;
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if (-e ".git") {
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my $git_last_include_commit = `${git_command} log --no-merges --pretty=format:"%h%n" -1 -- include`;
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my $git_last_include_commit = `git log --no-merges --pretty=format:"%h%n" -1 -- include`;
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chomp $git_last_include_commit;
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$camelcase_cache = ".checkpatch-camelcase.git.$git_last_include_commit";
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} else {
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@ -936,7 +904,7 @@ sub seed_camelcase_includes {
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}
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if (-e ".git") {
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$files = `${git_command} ls-files "include/*.h"`;
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$files = `git ls-files "include/*.h"`;
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@include_files = split('\n', $files);
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}
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@ -960,13 +928,13 @@ sub git_commit_info {
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return ($id, $desc) if ((which("git") eq "") || !(-e ".git"));
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my $output = `${git_command} log --no-color --format='%H %s' -1 $commit 2>&1`;
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my $output = `git log --no-color --format='%H %s' -1 $commit 2>&1`;
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$output =~ s/^\s*//gm;
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my @lines = split("\n", $output);
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return ($id, $desc) if ($#lines < 0);
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if ($lines[0] =~ /^error: short SHA1 $commit is ambiguous/) {
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if ($lines[0] =~ /^error: short SHA1 $commit is ambiguous\./) {
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# Maybe one day convert this block of bash into something that returns
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# all matching commit ids, but it's very slow...
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#
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@ -1010,7 +978,7 @@ if ($git) {
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} else {
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$git_range = "-1 $commit_expr";
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}
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my $lines = `${git_command} log --no-color --no-merges --pretty=format:'%H %s' $git_range`;
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my $lines = `git log --no-color --no-merges --pretty=format:'%H %s' $git_range`;
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foreach my $line (split(/\n/, $lines)) {
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$line =~ /^([0-9a-fA-F]{40,40}) (.*)$/;
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next if (!defined($1) || !defined($2));
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@ -1025,7 +993,6 @@ if ($git) {
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}
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my $vname;
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$allow_c99_comments = !defined $ignore_type{"C99_COMMENT_TOLERANCE"};
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for my $filename (@ARGV) {
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my $FILE;
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if ($git) {
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@ -2691,24 +2658,6 @@ sub process {
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} else {
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$signatures{$sig_nospace} = 1;
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}
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# Check Co-developed-by: immediately followed by Signed-off-by: with same name and email
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if ($sign_off =~ /^co-developed-by:$/i) {
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if ($email eq $author) {
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WARN("BAD_SIGN_OFF",
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"Co-developed-by: should not be used to attribute nominal patch author '$author'\n" . "$here\n" . $rawline);
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}
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if (!defined $lines[$linenr]) {
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WARN("BAD_SIGN_OFF",
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"Co-developed-by: must be immediately followed by Signed-off-by:\n" . "$here\n" . $rawline);
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} elsif ($rawlines[$linenr] !~ /^\s*signed-off-by:\s*(.*)/i) {
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WARN("BAD_SIGN_OFF",
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"Co-developed-by: must be immediately followed by Signed-off-by:\n" . "$here\n" . $rawline . "\n" .$rawlines[$linenr]);
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} elsif ($1 ne $email) {
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WARN("BAD_SIGN_OFF",
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"Co-developed-by and Signed-off-by: name/email do not match \n" . "$here\n" . $rawline . "\n" .$rawlines[$linenr]);
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}
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}
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}
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# Check email subject for common tools that don't need to be mentioned
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@ -2729,10 +2678,8 @@ sub process {
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($line =~ /^\s*(?:WARNING:|BUG:)/ ||
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$line =~ /^\s*\[\s*\d+\.\d{6,6}\s*\]/ ||
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# timestamp
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$line =~ /^\s*\[\<[0-9a-fA-F]{8,}\>\]/) ||
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$line =~ /^(?:\s+\w+:\s+[0-9a-fA-F]+){3,3}/ ||
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$line =~ /^\s*\#\d+\s*\[[0-9a-fA-F]+\]\s*\w+ at [0-9a-fA-F]+/) {
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# stack dump address styles
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$line =~ /^\s*\[\<[0-9a-fA-F]{8,}\>\]/)) {
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# stack dump address
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$commit_log_possible_stack_dump = 1;
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}
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@ -2904,17 +2851,6 @@ sub process {
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}
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}
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# check for invalid commit id
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if ($in_commit_log && $line =~ /(^fixes:|\bcommit)\s+([0-9a-f]{6,40})\b/i) {
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my $id;
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my $description;
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($id, $description) = git_commit_info($2, undef, undef);
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if (!defined($id)) {
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WARN("UNKNOWN_COMMIT_ID",
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"Unknown commit id '$2', maybe rebased or not pulled?\n" . $herecurr);
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}
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}
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# ignore non-hunk lines and lines being removed
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next if (!$hunk_line || $line =~ /^-/);
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@ -3044,7 +2980,7 @@ sub process {
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my @compats = $rawline =~ /\"([a-zA-Z0-9\-\,\.\+_]+)\"/g;
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my $dt_path = $root . "/Documentation/devicetree/bindings/";
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my $vp_file = $dt_path . "vendor-prefixes.yaml";
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my $vp_file = $dt_path . "vendor-prefixes.txt";
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foreach my $compat (@compats) {
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my $compat2 = $compat;
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@ -3059,7 +2995,7 @@ sub process {
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next if $compat !~ /^([a-zA-Z0-9\-]+)\,/;
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my $vendor = $1;
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`grep -Eq "\\"\\^\Q$vendor\E,\\.\\*\\":" $vp_file`;
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`grep -Eq "^$vendor\\b" $vp_file`;
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if ( $? >> 8 ) {
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WARN("UNDOCUMENTED_DT_STRING",
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"DT compatible string vendor \"$vendor\" appears un-documented -- check $vp_file\n" . $herecurr);
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@ -3083,24 +3019,16 @@ sub process {
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$comment = '..';
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}
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# check SPDX comment style for .[chsS] files
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if ($realfile =~ /\.[chsS]$/ &&
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$rawline =~ /SPDX-License-Identifier:/ &&
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$rawline !~ m@^\+\s*\Q$comment\E\s*@) {
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WARN("SPDX_LICENSE_TAG",
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"Improper SPDX comment style for '$realfile', please use '$comment' instead\n" . $herecurr);
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}
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if ($comment !~ /^$/ &&
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$rawline !~ m@^\+\Q$comment\E SPDX-License-Identifier: @) {
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WARN("SPDX_LICENSE_TAG",
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"Missing or malformed SPDX-License-Identifier tag in line $checklicenseline\n" . $herecurr);
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$rawline !~ /^\+\Q$comment\E SPDX-License-Identifier: /) {
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WARN("SPDX_LICENSE_TAG",
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"Missing or malformed SPDX-License-Identifier tag in line $checklicenseline\n" . $herecurr);
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} elsif ($rawline =~ /(SPDX-License-Identifier: .*)/) {
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my $spdx_license = $1;
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if (!is_SPDX_License_valid($spdx_license)) {
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WARN("SPDX_LICENSE_TAG",
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"'$spdx_license' is not supported in LICENSES/...\n" . $herecurr);
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}
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my $spdx_license = $1;
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if (!is_SPDX_License_valid($spdx_license)) {
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WARN("SPDX_LICENSE_TAG",
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"'$spdx_license' is not supported in LICENSES/...\n" . $herecurr);
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}
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}
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}
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}
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@ -3108,14 +3036,6 @@ sub process {
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# check we are in a valid source file if not then ignore this hunk
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next if ($realfile !~ /\.(h|c|s|S|sh|dtsi|dts)$/);
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# check for using SPDX-License-Identifier on the wrong line number
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if ($realline != $checklicenseline &&
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$rawline =~ /\bSPDX-License-Identifier:/ &&
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substr($line, @-, @+ - @-) eq "$;" x (@+ - @-)) {
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WARN("SPDX_LICENSE_TAG",
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"Misplaced SPDX-License-Identifier tag - use line $checklicenseline instead\n" . $herecurr);
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}
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# line length limit (with some exclusions)
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#
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# There are a few types of lines that may extend beyond $max_line_length:
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@ -3173,8 +3093,10 @@ sub process {
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if ($msg_type ne "" &&
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(show_type("LONG_LINE") || show_type($msg_type))) {
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WARN($msg_type,
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"line over $max_line_length characters\n" . $herecurr);
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my $msg_level = \&WARN;
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$msg_level = \&CHK if ($file);
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&{$msg_level}($msg_type,
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"line length of $length exceeds $max_line_length columns\n" . $herecurr);
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}
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}
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@ -3953,23 +3875,14 @@ sub process {
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WARN("STATIC_CONST_CHAR_ARRAY",
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"static const char * array should probably be static const char * const\n" .
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$herecurr);
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}
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# check for initialized const char arrays that should be static const
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if ($line =~ /^\+\s*const\s+(char|unsigned\s+char|_*u8|(?:[us]_)?int8_t)\s+\w+\s*\[\s*(?:\w+\s*)?\]\s*=\s*"/) {
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if (WARN("STATIC_CONST_CHAR_ARRAY",
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"const array should probably be static const\n" . $herecurr) &&
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$fix) {
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$fixed[$fixlinenr] =~ s/(^.\s*)const\b/${1}static const/;
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}
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}
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}
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# check for static char foo[] = "bar" declarations.
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if ($line =~ /\bstatic\s+char\s+(\w+)\s*\[\s*\]\s*=\s*"/) {
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WARN("STATIC_CONST_CHAR_ARRAY",
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"static char array declaration should probably be static const char\n" .
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$herecurr);
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}
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}
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# check for const <foo> const where <foo> is not a pointer or array type
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if ($sline =~ /\bconst\s+($BasicType)\s+const\b/) {
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@ -4677,7 +4590,7 @@ sub process {
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# closing brace should have a space following it when it has anything
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# on the line
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if ($line =~ /}(?!(?:,|;|\)|\}))\S/) {
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if ($line =~ /}(?!(?:,|;|\)))\S/) {
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if (ERROR("SPACING",
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"space required after that close brace '}'\n" . $herecurr) &&
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$fix) {
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@ -5027,6 +4940,17 @@ sub process {
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while ($line =~ m{($Constant|$Lval)}g) {
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my $var = $1;
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#gcc binary extension
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if ($var =~ /^$Binary$/) {
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if (WARN("GCC_BINARY_CONSTANT",
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"Avoid gcc v4.3+ binary constant extension: <$var>\n" . $herecurr) &&
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$fix) {
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my $hexval = sprintf("0x%x", oct($var));
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$fixed[$fixlinenr] =~
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s/\b$var\b/$hexval/;
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}
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}
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#CamelCase
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if ($var !~ /^$Constant$/ &&
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$var =~ /[A-Z][a-z]|[a-z][A-Z]/ &&
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@ -5208,7 +5132,7 @@ sub process {
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next if ($arg =~ /\.\.\./);
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next if ($arg =~ /^type$/i);
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my $tmp_stmt = $define_stmt;
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$tmp_stmt =~ s/\b(sizeof|typeof|__typeof__|__builtin\w+|typecheck\s*\(\s*$Type\s*,|\#+)\s*\(*\s*$arg\s*\)*\b//g;
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$tmp_stmt =~ s/\b(typeof|__typeof__|__builtin\w+|typecheck\s*\(\s*$Type\s*,|\#+)\s*\(*\s*$arg\s*\)*\b//g;
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$tmp_stmt =~ s/\#+\s*$arg\b//g;
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$tmp_stmt =~ s/\b$arg\s*\#\#//g;
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my $use_cnt = () = $tmp_stmt =~ /\b$arg\b/g;
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@ -5607,8 +5531,7 @@ sub process {
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my ($s, $c) = ctx_statement_block($linenr - 3, $realcnt, 0);
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# print("line: <$line>\nprevline: <$prevline>\ns: <$s>\nc: <$c>\n\n\n");
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if ($s =~ /(?:^|\n)[ \+]\s*(?:$Type\s*)?\Q$testval\E\s*=\s*(?:\([^\)]*\)\s*)?\s*$allocFunctions\s*\(/ &&
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$s !~ /\b__GFP_NOWARN\b/ ) {
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if ($s =~ /(?:^|\n)[ \+]\s*(?:$Type\s*)?\Q$testval\E\s*=\s*(?:\([^\)]*\)\s*)?\s*(?:devm_)?(?:[kv][czm]alloc(?:_node|_array)?\b|kstrdup|kmemdup|(?:dev_)?alloc_skb)/) {
|
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WARN("OOM_MESSAGE",
|
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"Possible unnecessary 'out of memory' message\n" . $hereprev);
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}
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@ -5729,7 +5652,7 @@ sub process {
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# ignore udelay's < 10, however
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if (! ($delay < 10) ) {
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CHK("USLEEP_RANGE",
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"usleep_range is preferred over udelay; see Documentation/timers/timers-howto.rst\n" . $herecurr);
|
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"usleep_range is preferred over udelay; see Documentation/timers/timers-howto.txt\n" . $herecurr);
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}
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if ($delay > 2000) {
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WARN("LONG_UDELAY",
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@ -5741,7 +5664,7 @@ sub process {
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if ($line =~ /\bmsleep\s*\((\d+)\);/) {
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if ($1 < 20) {
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WARN("MSLEEP",
|
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"msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.rst\n" . $herecurr);
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"msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt\n" . $herecurr);
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}
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}
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@ -5890,18 +5813,6 @@ sub process {
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"__aligned(size) is preferred over __attribute__((aligned(size)))\n" . $herecurr);
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}
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|
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# Check for __attribute__ section, prefer __section
|
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if ($realfile !~ m@\binclude/uapi/@ &&
|
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$line =~ /\b__attribute__\s*\(\s*\(.*_*section_*\s*\(\s*("[^"]*")/) {
|
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my $old = substr($rawline, $-[1], $+[1] - $-[1]);
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my $new = substr($old, 1, -1);
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if (WARN("PREFER_SECTION",
|
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"__section($new) is preferred over __attribute__((section($old)))\n" . $herecurr) &&
|
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$fix) {
|
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$fixed[$fixlinenr] =~ s/\b__attribute__\s*\(\s*\(\s*_*section_*\s*\(\s*\Q$old\E\s*\)\s*\)\s*\)/__section($new)/;
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||||
}
|
||||
}
|
||||
|
||||
# Check for __attribute__ format(printf, prefer __printf
|
||||
if ($realfile !~ m@\binclude/uapi/@ &&
|
||||
$line =~ /\b__attribute__\s*\(\s*\(\s*format\s*\(\s*printf/) {
|
||||
@ -6024,7 +5935,7 @@ sub process {
|
||||
while ($fmt =~ /(\%[\*\d\.]*p(\w))/g) {
|
||||
$specifier = $1;
|
||||
$extension = $2;
|
||||
if ($extension !~ /[SsBKRraEhMmIiUDdgVCbGNOxt]/) {
|
||||
if ($extension !~ /[SsBKRraEhMmIiUDdgVCbGNOx]/) {
|
||||
$bad_specifier = $specifier;
|
||||
last;
|
||||
}
|
||||
@ -6144,11 +6055,11 @@ sub process {
|
||||
my $max = $7;
|
||||
if ($min eq $max) {
|
||||
WARN("USLEEP_RANGE",
|
||||
"usleep_range should not use min == max args; see Documentation/timers/timers-howto.rst\n" . "$here\n$stat\n");
|
||||
"usleep_range should not use min == max args; see Documentation/timers/timers-howto.txt\n" . "$here\n$stat\n");
|
||||
} elsif ($min =~ /^\d+$/ && $max =~ /^\d+$/ &&
|
||||
$min > $max) {
|
||||
WARN("USLEEP_RANGE",
|
||||
"usleep_range args reversed, use min then max; see Documentation/timers/timers-howto.rst\n" . "$here\n$stat\n");
|
||||
"usleep_range args reversed, use min then max; see Documentation/timers/timers-howto.txt\n" . "$here\n$stat\n");
|
||||
}
|
||||
}
|
||||
|
||||
@ -6271,8 +6182,8 @@ sub process {
|
||||
}
|
||||
}
|
||||
|
||||
# check for pointless casting of alloc functions
|
||||
if ($line =~ /\*\s*\)\s*$allocFunctions\b/) {
|
||||
# check for pointless casting of kmalloc return
|
||||
if ($line =~ /\*\s*\)\s*[kv][czm]alloc(_node){0,1}\b/) {
|
||||
WARN("UNNECESSARY_CASTS",
|
||||
"unnecessary cast may hide bugs, see http://c-faq.com/malloc/mallocnocast.html\n" . $herecurr);
|
||||
}
|
||||
@ -6280,7 +6191,7 @@ sub process {
|
||||
# alloc style
|
||||
# p = alloc(sizeof(struct foo), ...) should be p = alloc(sizeof(*p), ...)
|
||||
if ($perl_version_ok &&
|
||||
$line =~ /\b($Lval)\s*\=\s*(?:$balanced_parens)?\s*((?:kv|k|v)[mz]alloc(?:_node)?)\s*\(\s*(sizeof\s*\(\s*struct\s+$Lval\s*\))/) {
|
||||
$line =~ /\b($Lval)\s*\=\s*(?:$balanced_parens)?\s*([kv][mz]alloc(?:_node)?)\s*\(\s*(sizeof\s*\(\s*struct\s+$Lval\s*\))/) {
|
||||
CHK("ALLOC_SIZEOF_STRUCT",
|
||||
"Prefer $3(sizeof(*$1)...) over $3($4...)\n" . $herecurr);
|
||||
}
|
||||
@ -6443,6 +6354,19 @@ sub process {
|
||||
}
|
||||
}
|
||||
|
||||
# check for bool bitfields
|
||||
if ($sline =~ /^.\s+bool\s*$Ident\s*:\s*\d+\s*;/) {
|
||||
WARN("BOOL_BITFIELD",
|
||||
"Avoid using bool as bitfield. Prefer bool bitfields as unsigned int or u<8|16|32>\n" . $herecurr);
|
||||
}
|
||||
|
||||
# check for bool use in .h files
|
||||
if ($realfile =~ /\.h$/ &&
|
||||
$sline =~ /^.\s+bool\s*$Ident\s*(?::\s*d+\s*)?;/) {
|
||||
CHK("BOOL_MEMBER",
|
||||
"Avoid using bool structure members because of possible alignment issues - see: https://lkml.org/lkml/2017/11/21/384\n" . $herecurr);
|
||||
}
|
||||
|
||||
# check for semaphores initialized locked
|
||||
if ($line =~ /^.\s*sema_init.+,\W?0\W?\)/) {
|
||||
WARN("CONSIDER_COMPLETION",
|
||||
@ -6461,20 +6385,6 @@ sub process {
|
||||
"please use device_initcall() or more appropriate function instead of __initcall() (see include/linux/init.h)\n" . $herecurr);
|
||||
}
|
||||
|
||||
# check for spin_is_locked(), suggest lockdep instead
|
||||
if ($line =~ /\bspin_is_locked\(/) {
|
||||
WARN("USE_LOCKDEP",
|
||||
"Where possible, use lockdep_assert_held instead of assertions based on spin_is_locked\n" . $herecurr);
|
||||
}
|
||||
|
||||
# check for deprecated apis
|
||||
if ($line =~ /\b($deprecated_apis_search)\b\s*\(/) {
|
||||
my $deprecated_api = $1;
|
||||
my $new_api = $deprecated_apis{$deprecated_api};
|
||||
WARN("DEPRECATED_API",
|
||||
"Deprecated use of '$deprecated_api', prefer '$new_api' instead\n" . $herecurr);
|
||||
}
|
||||
|
||||
# check for various structs that are normally const (ops, kgdb, device_tree)
|
||||
# and avoid what seem like struct definitions 'struct foo {'
|
||||
if ($line !~ /\bconst\b/ &&
|
||||
@ -6509,12 +6419,6 @@ sub process {
|
||||
"Using $1 should generally have parentheses around the comparison\n" . $herecurr);
|
||||
}
|
||||
|
||||
# nested likely/unlikely calls
|
||||
if ($line =~ /\b(?:(?:un)?likely)\s*\(\s*!?\s*(IS_ERR(?:_OR_NULL|_VALUE)?|WARN)/) {
|
||||
WARN("LIKELY_MISUSE",
|
||||
"nested (un)?likely() calls, $1 already uses unlikely() internally\n" . $herecurr);
|
||||
}
|
||||
|
||||
# whine mightly about in_atomic
|
||||
if ($line =~ /\bin_atomic\s*\(/) {
|
||||
if ($realfile =~ m@^drivers/@) {
|
||||
@ -6674,12 +6578,6 @@ sub process {
|
||||
"unknown module license " . $extracted_string . "\n" . $herecurr);
|
||||
}
|
||||
}
|
||||
|
||||
# check for sysctl duplicate constants
|
||||
if ($line =~ /\.extra[12]\s*=\s*&(zero|one|int_max)\b/) {
|
||||
WARN("DUPLICATED_SYSCTL_CONST",
|
||||
"duplicated sysctl range checking value '$1', consider using the shared one in include/linux/sysctl.h\n" . $herecurr);
|
||||
}
|
||||
}
|
||||
|
||||
# If we have no input at all, then there is nothing to report on
|
||||
|
||||
Loading…
Reference in New Issue
Block a user