#!/usr/bin/env perl
+# SPDX-License-Identifier: GPL-2.0
+#
# (c) 2001, Dave Jones. (the file handling bit)
# (c) 2005, Joel Schopp <jschopp@austin.ibm.com> (the ugly bit)
# (c) 2007,2008, Andy Whitcroft <apw@uk.ibm.com> (new conditions, test suite)
# (c) 2008-2010 Andy Whitcroft <apw@canonical.com>
-# Licensed under the terms of the GNU GPL License version 2
+# (c) 2010-2018 Joe Perches <joe@perches.com>
use strict;
use warnings;
use File::Basename;
use Cwd 'abs_path';
use Term::ANSIColor qw(:constants);
+use Encode qw(decode encode);
my $P = $0;
my $D = dirname(abs_path($P));
my @ignore = ();
my $help = 0;
my $configuration_file = ".checkpatch.conf";
-my $max_line_length = 80;
+my $max_line_length = 100;
my $ignore_perl_version = 0;
my $minimum_perl_version = 5.10.0;
my $min_conf_desc_length = 4;
my $codespellfile = "/usr/share/codespell/dictionary.txt";
my $conststructsfile = "$D/const_structs.checkpatch";
my $typedefsfile = "";
+my $u_boot = 0;
my $color = "auto";
my $allow_c99_comments = 1;
--types TYPE(,TYPE2...) show only these comma separated message types
--ignore TYPE(,TYPE2...) ignore various comma separated message types
--show-types show the specific message type in the output
- --max-line-length=n set the maximum line length, if exceeded, warn
+ --max-line-length=n set the maximum line length, (default $max_line_length)
+ if exceeded, warn on patches
+ requires --strict for use with --file
--min-conf-desc-length=n set the min description length, if shorter, warn
--root=PATH PATH to the kernel tree root
--no-summary suppress the per-file summary
--typedefsfile Read additional types from this file
--color[=WHEN] Use colors 'always', 'never', or only when output
is a terminal ('auto'). Default is 'auto'.
+ --u-boot Run additional checks for U-Boot
-h, --help, --version display this help and exit
When FILE is - read standard input.
'codespell!' => \$codespell,
'codespellfile=s' => \$codespellfile,
'typedefsfile=s' => \$typedefsfile,
+ 'u-boot' => \$u_boot,
'color=s' => \$color,
'no-color' => \$color, #keep old behaviors of -nocolor
'nocolor' => \$color, #keep old behaviors of -nocolor
my $exit = 0;
+my $perl_version_ok = 1;
if ($^V && $^V lt $minimum_perl_version) {
+ $perl_version_ok = 0;
printf "$P: requires at least perl version %vd\n", $minimum_perl_version;
- if (!$ignore_perl_version) {
- exit(1);
- }
+ exit(1) if (!$ignore_perl_version);
}
#if no filenames are given, push '-' to read patch from stdin
__force|
__iomem|
__must_check|
- __init_refok|
__kprobes|
__ref|
+ __refconst|
+ __refdata|
__rcu|
__private
}x;
__noclone|
__deprecated|
__read_mostly|
+ __ro_after_init|
__kprobes|
$InitAttribute|
____cacheline_aligned|
TP_printk|
WARN(?:_RATELIMIT|_ONCE|)|
panic|
+ debug|
+ printf|
MODULE_[A-Z_]+|
seq_vprintf|seq_printf|seq_puts
)};
return $status =~ /obsolete/i;
}
+sub is_SPDX_License_valid {
+ my ($license) = @_;
+
+ return 1 if (!$tree || which("python") eq "" || !(-e "$root/scripts/spdxcheck.py") || !(-e "$root/.git"));
+
+ my $root_path = abs_path($root);
+ my $status = `cd "$root_path"; echo "$license" | python scripts/spdxcheck.py -`;
+ return 0 if ($status ne "");
+ return 1;
+}
+
my $camelcase_seeded = 0;
sub seed_camelcase_includes {
return if ($camelcase_seeded);
hash_show_words(\%use_type, "Used");
hash_show_words(\%ignore_type, "Ignored");
- if ($^V lt 5.10.0) {
+ if (!$perl_version_ok) {
print << "EOM"
NOTE: perl $^V is not modern enough to detect all possible issues.
- An upgrade to at least perl v5.10.0 is suggested.
+ An upgrade to at least perl $minimum_perl_version is suggested.
EOM
}
if ($exit) {
return length(expand_tabs(substr($line, 0, $last_openparen))) + 1;
}
+# Checks specific to U-Boot
+sub u_boot_line {
+ my ($realfile, $line, $herecurr) = @_;
+
+ # ask for a test if a new uclass ID is added
+ if ($realfile =~ /uclass-id.h/ && $line =~ /^\+/) {
+ WARN("NEW_UCLASS",
+ "Possible new uclass - make sure to add a sandbox driver, plus a test in test/dm/<name>.c\n" . $herecurr);
+ }
+
+ # try to get people to use the livetree API
+ if ($line =~ /^\+.*fdtdec_/) {
+ WARN("LIVETREE",
+ "Use the livetree API (dev_read_...)\n" . $herecurr);
+ }
+
+ # add tests for new commands
+ if ($line =~ /^\+.*do_($Ident)\(struct cmd_tbl.*/) {
+ WARN("CMD_TEST",
+ "Possible new command - make sure you add a test\n" . $herecurr);
+ }
+
+ # use if instead of #if
+ if ($line =~ /^\+#if.*CONFIG.*/) {
+ WARN("PREFER_IF",
+ "Use 'if (IS_ENABLED(CONFIG...))' instead of '#if or #ifdef' where possible\n" . $herecurr);
+ }
+
+ # use defconfig to manage CONFIG_CMD options
+ if ($line =~ /\+\s*#\s*(define|undef)\s+(CONFIG_CMD\w*)\b/) {
+ ERROR("DEFINE_CONFIG_CMD",
+ "All commands are managed by Kconfig\n" . $herecurr);
+ }
+}
+
sub process {
my $filename = shift;
our $clean = 1;
my $signoff = 0;
+ my $author = '';
+ my $authorsignoff = 0;
my $is_patch = 0;
+ my $is_binding_patch = -1;
my $in_header_lines = $file ? 0 : 1;
my $in_commit_log = 0; #Scanning lines before patch
my $has_commit_log = 0; #Encountered lines before patch
+ my $commit_log_lines = 0; #Number of commit log lines
my $commit_log_possible_stack_dump = 0;
my $commit_log_long_line = 0;
my $commit_log_has_diff = 0;
my $rawline = $rawlines[$linenr - 1];
+# check if it's a mode change, rename or start of a patch
+ if (!$in_commit_log &&
+ ($line =~ /^ mode change [0-7]+ => [0-7]+ \S+\s*$/ ||
+ ($line =~ /^rename (?:from|to) \S+\s*$/ ||
+ $line =~ /^diff --git a\/[\w\/\.\_\-]+ b\/\S+\s*$/))) {
+ $is_patch = 1;
+ }
+
#extract the line range in the file after the patch is applied
if (!$in_commit_log &&
$line =~ /^\@\@ -\d+(?:,\d+)? \+(\d+)(,(\d+))? \@\@(.*)/) {
$check = $check_orig;
}
$checklicenseline = 1;
+
+ if ($realfile !~ /^MAINTAINERS/) {
+ my $last_binding_patch = $is_binding_patch;
+
+ $is_binding_patch = () = $realfile =~ m@^(?:Documentation/devicetree/|include/dt-bindings/)@;
+
+ if (($last_binding_patch != -1) &&
+ ($last_binding_patch ^ $is_binding_patch)) {
+ WARN("DT_SPLIT_BINDING_PATCH",
+ "DT binding docs and includes should be a separate patch. See: Documentation/devicetree/bindings/submitting-patches.txt\n");
+ }
+ }
+
next;
}
$cnt_lines++ if ($realcnt != 0);
+# Verify the existence of a commit log if appropriate
+# 2 is used because a $signature is counted in $commit_log_lines
+ if ($in_commit_log) {
+ if ($line !~ /^\s*$/) {
+ $commit_log_lines++; #could be a $signature
+ }
+ } elsif ($has_commit_log && $commit_log_lines < 2) {
+ WARN("COMMIT_MESSAGE",
+ "Missing commit description - Add an appropriate one\n");
+ $commit_log_lines = 2; #warn only once
+ }
+
# Check if the commit log has what seems like a diff which can confuse patch
if ($in_commit_log && !$commit_log_has_diff &&
(($line =~ m@^\s+diff\b.*a/[\w/]+@ &&
}
}
+# Check the patch for a From:
+ if (decode("MIME-Header", $line) =~ /^From:\s*(.*)/) {
+ $author = $1;
+ $author = encode("utf8", $author) if ($line =~ /=\?utf-8\?/i);
+ $author =~ s/"//g;
+ }
+
# Check the patch for a signoff:
if ($line =~ /^\s*signed-off-by:/i) {
$signoff++;
$in_commit_log = 0;
+ if ($author ne '') {
+ my $l = $line;
+ $l =~ s/"//g;
+ if ($l =~ /^\s*signed-off-by:\s*\Q$author\E/i) {
+ $authorsignoff = 1;
+ }
+ }
}
# Check if MAINTAINERS is being updated. If so, there's probably no need to
"A patch subject line should describe the change not the tool that found it\n" . $herecurr);
}
-# Check for old stable address
- if ($line =~ /^\s*cc:\s*.*<?\bstable\@kernel\.org\b>?.*$/i) {
- ERROR("STABLE_ADDRESS",
- "The 'stable' address should be 'stable\@vger.kernel.org'\n" . $herecurr);
- }
-
# Check for unwanted Gerrit info
if ($in_commit_log && $line =~ /^\s*change-id:/i) {
ERROR("GERRIT_CHANGE_ID",
if ($comment !~ /^$/ &&
$rawline !~ /^\+\Q$comment\E SPDX-License-Identifier: /) {
- WARN("SPDX_LICENSE_TAG",
- "Missing or malformed SPDX-License-Identifier tag in line $checklicenseline\n" . $herecurr);
+ WARN("SPDX_LICENSE_TAG",
+ "Missing or malformed SPDX-License-Identifier tag in line $checklicenseline\n" . $herecurr);
+ } elsif ($rawline =~ /(SPDX-License-Identifier: .*)/) {
+ my $spdx_license = $1;
+ if (!is_SPDX_License_valid($spdx_license)) {
+ WARN("SPDX_LICENSE_TAG",
+ "'$spdx_license' is not supported in LICENSES/...\n" . $herecurr);
+ }
}
}
}
if ($msg_type ne "" &&
(show_type("LONG_LINE") || show_type($msg_type))) {
- WARN($msg_type,
- "line over $max_line_length characters\n" . $herecurr);
+ my $msg_level = \&WARN;
+ $msg_level = \&CHK if ($file);
+ &{$msg_level}($msg_type,
+ "line length of $length exceeds $max_line_length columns\n" . $herecurr);
}
}
"adding a line without newline at end of file\n" . $herecurr);
}
+ if ($u_boot) {
+ u_boot_line($realfile, $line, $herecurr);
+ }
+
# check we are in a valid source file C or perl if not then ignore this hunk
next if ($realfile !~ /\.(h|c|pl|dtsi|dts)$/);
}
}
+# check for assignments on the start of a line
+ if ($sline =~ /^\+\s+($Assignment)[^=]/) {
+ CHK("ASSIGNMENT_CONTINUATIONS",
+ "Assignment operator '$1' should be on the previous line\n" . $hereprev);
+ }
+
# check for && or || at the start of a line
if ($rawline =~ /^\+\s*(&&|\|\|)/) {
CHK("LOGICAL_CONTINUATIONS",
}
# check indentation starts on a tab stop
- if ($^V && $^V ge 5.10.0 &&
+ if ($perl_version_ok &&
$sline =~ /^\+\t+( +)(?:$c90_Keywords\b|\{\s*$|\}\s*(?:else\b|while\b|\s*$)|$Declare\s*$Ident\s*[;=])/) {
my $indent = length($1);
if ($indent % 8) {
}
# check multi-line statement indentation matches previous line
- if ($^V && $^V ge 5.10.0 &&
+ if ($perl_version_ok &&
$prevline =~ /^\+([ \t]*)((?:$c90_Keywords(?:\s+if)\s*)|(?:$Declare\s*)?(?:$Ident|\(\s*\*\s*$Ident\s*\))\s*|(?:\*\s*)*$Lval\s*=\s*$Ident\s*)\(.*(\&\&|\|\||,)\s*$/) {
$prevline =~ /^\+(\t*)(.*)$/;
my $oldindent = $1;
# known declaration macros
$sline =~ /^\+\s+$declaration_macros/ ||
# start of struct or union or enum
- $sline =~ /^\+\s+(?:union|struct|enum|typedef)\b/ ||
+ $sline =~ /^\+\s+(?:static\s+)?(?:const\s+)?(?:union|struct|enum|typedef)\b/ ||
# start or end of block or continuation of declaration
$sline =~ /^\+\s+(?:$|[\{\}\.\#\"\?\:\(\[])/ ||
# bitfield continuation
"type '$tmp' should be specified in [[un]signed] [short|int|long|long long] order\n" . $herecurr);
}
+# check for unnecessary <signed> int declarations of short/long/long long
+ while ($sline =~ m{\b($TypeMisordered(\s*\*)*|$C90_int_types)\b}g) {
+ my $type = trim($1);
+ next if ($type !~ /\bint\b/);
+ next if ($type !~ /\b(?:short|long\s+long|long)\b/);
+ my $new_type = $type;
+ $new_type =~ s/\b\s*int\s*\b/ /;
+ $new_type =~ s/\b\s*(?:un)?signed\b\s*/ /;
+ $new_type =~ s/^const\s+//;
+ $new_type = "unsigned $new_type" if ($type =~ /\bunsigned\b/);
+ $new_type = "const $new_type" if ($type =~ /^const\b/);
+ $new_type =~ s/\s+/ /g;
+ $new_type = trim($new_type);
+ if (WARN("UNNECESSARY_INT",
+ "Prefer '$new_type' over '$type' as the int is unnecessary\n" . $herecurr) &&
+ $fix) {
+ $fixed[$fixlinenr] =~ s/\b\Q$type\E\b/$new_type/;
+ }
+ }
+
# check for static const char * arrays.
if ($line =~ /\bstatic\s+const\s+char\s*\*\s*(\w+)\s*\[\s*\]\s*=\s*/) {
WARN("STATIC_CONST_CHAR_ARRAY",
# function brace can't be on same line, except for #defines of do while,
# or if closed on same line
- if ($^V && $^V ge 5.10.0 &&
+ if ($perl_version_ok &&
$sline =~ /$Type\s*$Ident\s*$balanced_parens\s*\{/ &&
$sline !~ /\#\s*define\b.*do\s*\{/ &&
$sline !~ /}/) {
my ($where, $prefix) = ($-[1], $1);
if ($prefix !~ /$Type\s+$/ &&
($where != 0 || $prefix !~ /^.\s+$/) &&
- $prefix !~ /[{,]\s+$/) {
+ $prefix !~ /[{,:]\s+$/) {
if (ERROR("BRACKET_SPACE",
"space prohibited before open square bracket '['\n" . $herecurr) &&
$fix) {
#need space before brace following if, while, etc
if (($line =~ /\(.*\)\{/ && $line !~ /\($Type\)\{/) ||
- $line =~ /do\{/) {
+ $line =~ /\b(?:else|do)\{/) {
if (ERROR("SPACING",
"space required before the open brace '{'\n" . $herecurr) &&
$fix) {
- $fixed[$fixlinenr] =~ s/^(\+.*(?:do|\)))\{/$1 {/;
+ $fixed[$fixlinenr] =~ s/^(\+.*(?:do|else|\)))\{/$1 {/;
}
}
# check for unnecessary parentheses around comparisons in if uses
# when !drivers/staging or command-line uses --strict
if (($realfile !~ m@^(?:drivers/staging/)@ || $check_orig) &&
- $^V && $^V ge 5.10.0 && defined($stat) &&
+ $perl_version_ok && defined($stat) &&
$stat =~ /(^.\s*if\s*($balanced_parens))/) {
my $if_stat = $1;
my $test = substr($2, 1, -1);
# return is not a function
if (defined($stat) && $stat =~ /^.\s*return(\s*)\(/s) {
my $spacing = $1;
- if ($^V && $^V ge 5.10.0 &&
+ if ($perl_version_ok &&
$stat =~ /^.\s*return\s*($balanced_parens)\s*;\s*$/) {
my $value = $1;
$value = deparenthesize($value);
}
# if statements using unnecessary parentheses - ie: if ((foo == bar))
- if ($^V && $^V ge 5.10.0 &&
+ if ($perl_version_ok &&
$line =~ /\bif\s*((?:\(\s*){2,})/) {
my $openparens = $1;
my $count = $openparens =~ tr@\(@\(@;
# avoid cases like "foo + BAR < baz"
# only fix matches surrounded by parentheses to avoid incorrect
# conversions like "FOO < baz() + 5" being "misfixed" to "baz() > FOO + 5"
- if ($^V && $^V ge 5.10.0 &&
+ if ($perl_version_ok &&
$line =~ /^\+(.*)\b($Constant|[A-Z_][A-Z0-9_]*)\s*($Compare)\s*($LvalOrFunc)/) {
my $lead = $1;
my $const = $2;
if (defined $define_args && $define_args ne "") {
$define_args = substr($define_args, 1, length($define_args) - 2);
$define_args =~ s/\s*//g;
+ $define_args =~ s/\\\+?//g;
@def_args = split(",", $define_args);
}
$tmp_stmt =~ s/\b(typeof|__typeof__|__builtin\w+|typecheck\s*\(\s*$Type\s*,|\#+)\s*\(*\s*$arg\s*\)*\b//g;
$tmp_stmt =~ s/\#+\s*$arg\b//g;
$tmp_stmt =~ s/\b$arg\s*\#\#//g;
- my $use_cnt = $tmp_stmt =~ s/\b$arg\b//g;
+ my $use_cnt = () = $tmp_stmt =~ /\b$arg\b/g;
if ($use_cnt > 1) {
CHK("MACRO_ARG_REUSE",
"Macro argument reuse '$arg' - possible side-effects?\n" . "$herectx");
# do {} while (0) macro tests:
# single-statement macros do not need to be enclosed in do while (0) loop,
# macro should not end with a semicolon
- if ($^V && $^V ge 5.10.0 &&
+ if ($perl_version_ok &&
$realfile !~ m@/vmlinux.lds.h$@ &&
$line =~ /^.\s*\#\s*define\s+$Ident(\()?/) {
my $ln = $linenr;
}
}
-# make sure symbols are always wrapped with VMLINUX_SYMBOL() ...
-# all assignments may have only one of the following with an assignment:
-# .
-# ALIGN(...)
-# VMLINUX_SYMBOL(...)
- if ($realfile eq 'vmlinux.lds.h' && $line =~ /(?:(?:^|\s)$Ident\s*=|=\s*$Ident(?:\s|$))/) {
- WARN("MISSING_VMLINUX_SYMBOL",
- "vmlinux.lds.h needs VMLINUX_SYMBOL() around C-visible symbols\n" . $herecurr);
- }
-
# check for redundant bracing round if etc
if ($line =~ /(^.*)\bif\b/ && $1 !~ /else\s*$/) {
my ($level, $endln, @chunks) =
}
# concatenated string without spaces between elements
- if ($line =~ /$String[A-Z_]/ || $line =~ /[A-Za-z0-9_]$String/) {
- CHK("CONCATENATED_STRING",
- "Concatenated strings should use spaces between elements\n" . $herecurr);
+ if ($line =~ /$String[A-Za-z0-9_]/ || $line =~ /[A-Za-z0-9_]$String/) {
+ if (CHK("CONCATENATED_STRING",
+ "Concatenated strings should use spaces between elements\n" . $herecurr) &&
+ $fix) {
+ while ($line =~ /($String)/g) {
+ my $extracted_string = substr($rawline, $-[0], $+[0] - $-[0]);
+ $fixed[$fixlinenr] =~ s/\Q$extracted_string\E([A-Za-z0-9_])/$extracted_string $1/;
+ $fixed[$fixlinenr] =~ s/([A-Za-z0-9_])\Q$extracted_string\E/$1 $extracted_string/;
+ }
+ }
}
# uncoalesced string fragments
if ($line =~ /$String\s*"/) {
- WARN("STRING_FRAGMENTS",
- "Consecutive strings are generally better as a single string\n" . $herecurr);
+ if (WARN("STRING_FRAGMENTS",
+ "Consecutive strings are generally better as a single string\n" . $herecurr) &&
+ $fix) {
+ while ($line =~ /($String)(?=\s*")/g) {
+ my $extracted_string = substr($rawline, $-[0], $+[0] - $-[0]);
+ $fixed[$fixlinenr] =~ s/\Q$extracted_string\E\s*"/substr($extracted_string, 0, -1)/e;
+ }
+ }
}
# check for non-standard and hex prefixed decimal printf formats
# warn about #if 0
if ($line =~ /^.\s*\#\s*if\s+0\b/) {
- CHK("REDUNDANT_CODE",
- "if this code is redundant consider removing it\n" .
- $herecurr);
+ WARN("IF_0",
+ "Consider removing the code enclosed by this #if 0 and its #endif\n" . $herecurr);
+ }
+
+# warn about #if 1
+ if ($line =~ /^.\s*\#\s*if\s+1\b/) {
+ WARN("IF_1",
+ "Consider removing the #if 1 and its #endif\n" . $herecurr);
}
# check for needless "if (<foo>) fn(<foo>)" uses
}
# check for mask then right shift without a parentheses
- if ($^V && $^V ge 5.10.0 &&
+ if ($perl_version_ok &&
$line =~ /$LvalOrFunc\s*\&\s*($LvalOrFunc)\s*>>/ &&
$4 !~ /^\&/) { # $LvalOrFunc may be &foo, ignore if so
WARN("MASK_THEN_SHIFT",
}
# check for pointer comparisons to NULL
- if ($^V && $^V ge 5.10.0) {
+ if ($perl_version_ok) {
while ($line =~ /\b$LvalOrFunc\s*(==|\!=)\s*NULL\b/g) {
my $val = $1;
my $equal = "!";
"__packed is preferred over __attribute__((packed))\n" . $herecurr);
}
-# Check for new packed members, warn to use care
- if ($realfile !~ m@\binclude/uapi/@ &&
- $line =~ /\b(__attribute__\s*\(\s*\(.*\bpacked|__packed)\b/) {
- WARN("NEW_PACKED",
- "Adding new packed members is to be done with care\n" . $herecurr);
- }
-
# Check for __attribute__ aligned, prefer __aligned
if ($realfile !~ m@\binclude/uapi/@ &&
$line =~ /\b__attribute__\s*\(\s*\(.*aligned/) {
}
# Check for __attribute__ weak, or __weak declarations (may have link issues)
- if ($^V && $^V ge 5.10.0 &&
+ if ($perl_version_ok &&
$line =~ /(?:$Declare|$DeclareMisordered)\s*$Ident\s*$balanced_parens\s*(?:$Attribute)?\s*;/ &&
($line =~ /\b__attribute__\s*\(\s*\(.*\bweak\b/ ||
$line =~ /\b__weak\b/)) {
}
# check for vsprintf extension %p<foo> misuses
- if ($^V && $^V ge 5.10.0 &&
+ if ($perl_version_ok &&
defined $stat &&
$stat =~ /^\+(?![^\{]*\{\s*).*\b(\w+)\s*\(.*$String\s*,/s &&
$1 !~ /^_*volatile_*$/) {
- my $specifier;
- my $extension;
- my $bad_specifier = "";
my $stat_real;
my $lc = $stat =~ tr@\n@@;
$lc = $lc + $linenr;
for (my $count = $linenr; $count <= $lc; $count++) {
+ my $specifier;
+ my $extension;
+ my $bad_specifier = "";
my $fmt = get_quoted_string($lines[$count - 1], raw_line($count, 0));
$fmt =~ s/%%//g;
}
# Check for misused memsets
- if ($^V && $^V ge 5.10.0 &&
+ if ($perl_version_ok &&
defined $stat &&
$stat =~ /^\+(?:.*?)\bmemset\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\,\s*$FuncArg\s*\)/) {
}
# Check for memcpy(foo, bar, ETH_ALEN) that could be ether_addr_copy(foo, bar)
-# if ($^V && $^V ge 5.10.0 &&
+# if ($perl_version_ok &&
# defined $stat &&
# $stat =~ /^\+(?:.*?)\bmemcpy\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\,\s*ETH_ALEN\s*\)/) {
# if (WARN("PREFER_ETHER_ADDR_COPY",
# }
# Check for memcmp(foo, bar, ETH_ALEN) that could be ether_addr_equal*(foo, bar)
-# if ($^V && $^V ge 5.10.0 &&
+# if ($perl_version_ok &&
# defined $stat &&
# $stat =~ /^\+(?:.*?)\bmemcmp\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\,\s*ETH_ALEN\s*\)/) {
# WARN("PREFER_ETHER_ADDR_EQUAL",
# check for memset(foo, 0x0, ETH_ALEN) that could be eth_zero_addr
# check for memset(foo, 0xFF, ETH_ALEN) that could be eth_broadcast_addr
-# if ($^V && $^V ge 5.10.0 &&
+# if ($perl_version_ok &&
# defined $stat &&
# $stat =~ /^\+(?:.*?)\bmemset\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\,\s*ETH_ALEN\s*\)/) {
#
# }
# typecasts on min/max could be min_t/max_t
- if ($^V && $^V ge 5.10.0 &&
+ if ($perl_version_ok &&
defined $stat &&
$stat =~ /^\+(?:.*?)\b(min|max)\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\)/) {
if (defined $2 || defined $7) {
}
# check usleep_range arguments
- if ($^V && $^V ge 5.10.0 &&
+ if ($perl_version_ok &&
defined $stat &&
$stat =~ /^\+(?:.*?)\busleep_range\s*\(\s*($FuncArg)\s*,\s*($FuncArg)\s*\)/) {
my $min = $1;
}
# check for naked sscanf
- if ($^V && $^V ge 5.10.0 &&
+ if ($perl_version_ok &&
defined $stat &&
$line =~ /\bsscanf\b/ &&
($stat !~ /$Ident\s*=\s*sscanf\s*$balanced_parens/ &&
}
# check for simple sscanf that should be kstrto<foo>
- if ($^V && $^V ge 5.10.0 &&
+ if ($perl_version_ok &&
defined $stat &&
$line =~ /\bsscanf\b/) {
my $lc = $stat =~ tr@\n@@;
}
# check for function definitions
- if ($^V && $^V ge 5.10.0 &&
+ if ($perl_version_ok &&
defined $stat &&
$stat =~ /^.\s*(?:$Storage\s+)?$Type\s*($Ident)\s*$balanced_parens\s*{/s) {
$context_function = $1;
# alloc style
# p = alloc(sizeof(struct foo), ...) should be p = alloc(sizeof(*p), ...)
- if ($^V && $^V ge 5.10.0 &&
+ if ($perl_version_ok &&
$line =~ /\b($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" . $herecurr);
}
# check for k[mz]alloc with multiplies that could be kmalloc_array/kcalloc
- if ($^V && $^V ge 5.10.0 &&
+ if ($perl_version_ok &&
defined $stat &&
$stat =~ /^\+\s*($Lval)\s*\=\s*(?:$balanced_parens)?\s*(k[mz]alloc)\s*\(\s*($FuncArg)\s*\*\s*($FuncArg)\s*,/) {
my $oldfunc = $3;
}
# check for krealloc arg reuse
- if ($^V && $^V ge 5.10.0 &&
- $line =~ /\b($Lval)\s*\=\s*(?:$balanced_parens)?\s*krealloc\s*\(\s*\1\s*,/) {
+ if ($perl_version_ok &&
+ $line =~ /\b($Lval)\s*\=\s*(?:$balanced_parens)?\s*krealloc\s*\(\s*($Lval)\s*,/ &&
+ $1 eq $3) {
WARN("KREALLOC_ARG_REUSE",
"Reusing the krealloc arg is almost always a bug\n" . $herecurr);
}
}
# check for switch/default statements without a break;
- if ($^V && $^V ge 5.10.0 &&
+ if ($perl_version_ok &&
defined $stat &&
$stat =~ /^\+[$;\s]*(?:case[$;\s]+\w+[$;\s]*:[$;\s]*|)*[$;\s]*\bdefault[$;\s]*:[$;\s]*;/g) {
my $cnt = statement_rawlines($stat);
}
}
+# check for bool bitfields
+ if ($sline =~ /^.\s+bool\s*$Ident\s*:\s*\d+\s*;/) {
+ WARN("BOOL_BITFIELD",
+ "Avoid using bool as bitfield. Prefer bool bitfields as unsigned int or u<8|16|32>\n" . $herecurr);
+ }
+
+# check for bool use in .h files
+ if ($realfile =~ /\.h$/ &&
+ $sline =~ /^.\s+bool\s*$Ident\s*(?::\s*d+\s*)?;/) {
+ CHK("BOOL_MEMBER",
+ "Avoid using bool structure members because of possible alignment issues - see: https://lkml.org/lkml/2017/11/21/384\n" . $herecurr);
+ }
+
# check for semaphores initialized locked
if ($line =~ /^.\s*sema_init.+,\W?0\W?\)/) {
WARN("CONSIDER_COMPLETION",
}
# likely/unlikely comparisons similar to "(likely(foo) > 0)"
- if ($^V && $^V ge 5.10.0 &&
+ if ($perl_version_ok &&
$line =~ /\b((?:un)?likely)\s*\(\s*$FuncArg\s*\)\s*$Compare/) {
WARN("LIKELY_MISUSE",
"Using $1 should generally have parentheses around the comparison\n" . $herecurr);
# check for DEVICE_ATTR uses that could be DEVICE_ATTR_<FOO>
# and whether or not function naming is typical and if
# DEVICE_ATTR permissions uses are unusual too
- if ($^V && $^V ge 5.10.0 &&
+ if ($perl_version_ok &&
defined $stat &&
$stat =~ /\bDEVICE_ATTR\s*\(\s*(\w+)\s*,\s*\(?\s*(\s*(?:${multi_mode_perms_string_search}|0[0-7]{3,3})\s*)\s*\)?\s*,\s*(\w+)\s*,\s*(\w+)\s*\)/) {
my $var = $1;
# specific definition of not visible in sysfs.
# o Ignore proc_create*(...) uses with a decimal 0 permission as that means
# use the default permissions
- if ($^V && $^V ge 5.10.0 &&
+ if ($perl_version_ok &&
defined $stat &&
$line =~ /$mode_perms_search/) {
foreach my $entry (@mode_permission_funcs) {
ERROR("NOT_UNIFIED_DIFF",
"Does not appear to be a unified-diff format patch\n");
}
- if ($is_patch && $has_commit_log && $chk_signoff && $signoff == 0) {
- ERROR("MISSING_SIGN_OFF",
- "Missing Signed-off-by: line(s)\n");
+ if ($is_patch && $has_commit_log && $chk_signoff) {
+ if ($signoff == 0) {
+ ERROR("MISSING_SIGN_OFF",
+ "Missing Signed-off-by: line(s)\n");
+ } elsif (!$authorsignoff) {
+ WARN("NO_AUTHOR_SIGN_OFF",
+ "Missing Signed-off-by: line by nominal patch author '$author'\n");
+ }
}
print report_dump();
projects / oweals / u-boot.git / blobdiff