if ($cast1 ne "" && $cast2 ne "" && $cast1 ne $cast2) { )\n" . #warn "CSB: blk off len\n"; my $line = $fixed[$fixlinenr]; $pre_args_space =~ /^\s/) { :$Attribute)?\s*;/ && my $clean = 'X' x length($1); $line =~ m/^\s*\@\@ \-\d+,\d+ \+\d+,\d+ \@\@/)) { # "S_IXOTH" => 0001, $good = $fix_elements[$n] . # 2) preprocessor lines, and __kprobes| Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. "Logical continuations should be on the previous line\n" . for (my $n = 0; $n < $cnt; $n++) { "$stat_real\n"); my ($nlength, $nindent) = line_stats($lines[$ctx_ln - 1]); # check for an embedded function name in a string when the function is known } else { ($short || $long || $space || $case || ($orig_desc ne $description) || !$hasparens)) { # Check for __attribute__ weak, or __weak declarations (may have link issues) sub ctx_has_comment { my $ext_type = "Invalid"; # #defines that are a single string my $decl = trim($sign) . " } WARN("NR_CPUS", Asking for help, clarification, or responding to other answers. :\s+$Ident)?\s*$/) { } $NonptrTypeWithAttr = qr{ # declined it, i.e defined some charset where it is missing. "S_IXGRP" => 0010, ##print "prefix\n"; } elsif ($comp eq "<=") { $output .= ' ' . if ($first) { expect if ($realfile !~ m@\binclude/uapi/@ && *a/([\w/]+)\s+b/$1\b@) || $space_after = 1; "exactly one space required after that #$1\n" . $herecurr); # check for use of yield() => \$codespell, 'q|quiet+' => \$quiet, my $offset = $linenr - 1; 'codespell!' # } my $msg = ""; if ($line =~ /(\bif\s*|)(\(\s*$Ident\s*(? if (defined $signatures{$sig_nospace}) { # avoid cases like "foo + BAR < baz" $id = undef; "'$typo' may be misspelled - perhaps '$typo_fix'?\n" . sub which_conf { if (substr($line, 0, $-[0]) =~ /(\}\s*)$/) { $herecurr); what's the difference between "the killing machine" and "the machine that's killing", printf will print your content in place of the, If you do not tell it to print a newline (, ORS - output record separator set to blank. Problem: Remove all trailing whitespaces from a stringnewline '\n', tabular characters '\t', and empty spaces ' ' . $dstat !~ /$exceptions/ && if (keys %$hashRef) { } $herecurr); } } if ($rawline =~ /\\$/ && $sline =~ tr/"/"/ % 2) { if ($show_types) { }; # Block comments use */ on trailing lines if ($realfile =~ m@^drivers/@) { ## # continuation. "static const char * array should probably be static const char * const\n" . if ($^V && $^V ge 5.10.0 && if (defined $root) { $fixed[$fixlinenr] =~ $leading_tabs = $1; } else { :$Modifier\s+|const\s+)* my $fixed_line = $rawline; } EOM $declare . my @words = split(" ", $line); $herevet) && } single git commit with: ($line =~ /EXPORT_SYMBOL.*\((. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. :$Storage\s+)?$Type\s*($Ident)\s*$balanced_parens\s*{/s) { if (!defined $space_after || $space_after ne " ") { my $paren_space = $2; if (ERROR("BRACKET_SPACE", foreach my $entry (keys %mode_permission_string_types) { } } my $in_commit_log = 0; #Scanning lines before patch # (not a header line and we haven't seen the patch filename) # check for pointless casting of kmalloc return print << "EOM" (? our $Hex = qr{(?i)0x[0-9a-f]+$Int_type? sub seed_camelcase_includes { $herecurr); mb__before_atomic| # check for struct spinlock declarations # 1) within comments How can I check if a program exists from a Bash script? #CamelCase $herecurr) && my $hasparens = 0; )\b(min|max)\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\)/) { "Block comments use a trailing */ on a separate line\n" . # Check for __attribute__ packed, prefer __packed } if ($line =~ /\bget_jiffies_64\s*\(\s*\)\s*$Compare|$Compare\s*get_jiffies_64\s*\(\s*\)/) { WARN("CONST_STRUCT", if (-f $conf) { my $loff = 0; if ($line =~ /^\+/ && defined $lines[$linenr] && $lines[$linenr] =~ /^\\ No newline at end of file/) { + ret = 0; if ($type eq '#' && $c eq "\n" && $p ne "\\") { --max-line-length=n set the maximum line length, if exceeded, warn $herecurr); our $Float_dec = qr{(?i)(?:[0-9]+\.[0-9]*|[0-9]*\.[0-9]+)(?:e-?[0-9]+)?[fl]? substr($res, $off, 2, "$;$;"); my $compat2 = $compat; my $file = $1; # validate content of MODULE_LICENSE against list from include/linux/module.h qr{(?:(? WARN("PRINTF_L", "braces {} are not necessary for any arm of this statement\n" . } } :[^\(\)]++|(?-1))*\))/; } "\t" x ($indent/8)@e; qr{float}, # o Ignore module_param*() uses with a decimal 0 permission as that has a } %suppress_export = (); if ($level == 0 && $coff < $soff) { } $herecurr); :CLASS|DEVICE|SENSOR|SENSOR_DEVICE|IIO_DEVICE)_ATTR", 2], # typecasts on min/max could be min_t/max_t If this my ($hashRef, $prefix) = @_; if ($value =~ m/^\s*$FuncArg\s*(? # check for function declarations without arguments like "int foo()" my $line = $_; ); $herecurr); # Check for switch () and associated case and default } elsif ($cur =~ /^(-(?![->])|\+(? # memory.h: ARM has a custom one ERROR("MISSING_SIGN_OFF", $stmts !~ /^\s*(if|while|for|switch)\b/) { } elsif ($cur =~ /^(__attribute__)\s*\(?/o) { ## "Using comparison to $otype is error prone. warn "CHECK ($line)\n" if ($dbg_possible > 2); $hereprev) && $string =~ s/%%/__/g; if ($check && $s ne '' && (? if ($line =~ /^\+/ && $length > $max_line_length) { # if (WARN("PREFER_ETH_BROADCAST_ADDR", if ($line =~ /^\+$Type\s*$Ident(? $type = 'V'; DEFINE_\S+ if (defined $post_pointer_space && } | \xF0[\x90-\xBF][\x80-\xBF]{2} # planes 1-3 }x; "please, no spaces at the start of a line\n" . } elsif (!defined $fix_elements[$n + 2] && $ctx !~ /Wx[OE]/) { if ($realfile !~ m@scripts/@ && my $type = $1; if (defined $realline_next && Proprietary # check for naked sscanf "fs", "init", "ipc", "kernel", "lib", "scripts", if (ERROR("SPACING", + perf_pmu_assign_str(old->name, "value", &old->str, &newalias->str); our $String = qr{"[X\t]*"}; # check for uses of __DATE__, __TIME__, __TIMESTAMP__ if ($ctx !~ /[WEBC]x./ && $ca !~ /(? This should be quite quick: Also, for completeness, you can quickly check where your newline (or other special) characters are in your file using cat and the 'show-all' flag -A. if ($line =~ /^.\s*__initcall\s*\(/) { } if ($2 ne '') { :==|\!=)\s*NULL\b/$equal$val/; How we determine type of filter with pole(s), zero(s)? my ($s, $c) = ($stat, $cond); ERROR("OPEN_BRACE", ($sindent < $indent) || if (WARN("ALLOC_WITH_MULTIPLY", :extern\s+)?$Type\s+($Ident)(\s*)\(/s) WARN("UNNECESSARY_CASTS", } $len = length($blk); } WARN("MODULE_LICENSE", # no volatiles please if ($1 ne '++' && $1 ne '--') { WARN("USE_SPINLOCK_T", $prefix !~ /[{,:]\s+$/) { $NonptrType = qr{ $type = 'T'; if ($fixedline !~ /\+\s*$/) { :$Member\s*)+)\s*\)/g) { } our $cnt_warn++; $fix) { my $cast = $1; if ( $? $address = trim($address); sub ctx_block { our $Operators = qr{ :static\s+|const\s+)?char\s+\*\s*\w+\s*\[\s*\]\s*=\s*\{/) { $rawline =~ /^(? sub fix_delete_line { $dstat !~ /^(? (? __packed2__| if (CHK("LINE_SPACING", ($val =~ /^$Octal$/ && length($val) ne 4))) { # avoid checking a few false positives: $line =~ /(__constant_(?:htons|ntohs|[bl]e(?:16|32|64)_to_cpu|cpu_to_[bl]e(? } 'subjective!' $level = $stack[$#stack - 1]; foreach my $commit_expr (@ARGV) { "type '$tmp' should be specified in [[un]signed] [short|int|long|long long] order\n" . $s =~ s/$;//g; # Remove any comments \s*0[xX][0-9]+\s* last if ($fline =~ /^\@\@/); sub deparenthesize { WARN("EMBEDDED_FUNCTION_NAME", $herecurr); $herecurr); I snagged this from a github repo somewhere, but can't find where delete-trailing-blank-lines-sed #!/bin/bash I've seen in Cygwin bash the trailing whitespace not removed when using $(cmd /c echo %VAR%). $av_preprocessor = 1; my $fixedline = $prevrawline; if (!$has_break && $has_statement) { of a kernel tree\n"; S_IRWXUGO | my $if_stat = $1; my $pre_pointer_space = $2; } else { my $has_commit_log = 0; #Encountered lines before patch my ($lineRef, $offset, $length) = @_; $herecurr); "Use of $attr requires a separate use of const\n" . our $InitAttributeInit = qr{$InitAttributePrefix(? } elsif ($color =~ /^auto$/i) { # #defines with only strings if ($type eq '(' && $c eq ')') { # Check for incorrect file permissions # $fix) { $stmt =~ s/\s*$//; )$| my $len = 0; # << and >> may either have or not have spaces both sides # if the previous line is a goto or return and is indented the same # of tabs # if ($ms_val =~ /^(? my %suppress_ifbraces; # Networking with an initial /* "plain inline is preferred over $1\n" . last; :[\&\*]\s*)?$Lval)\s*($balanced_parens{0,1})\s*}; $setup_docs = 1; $level2 = "dbg" if ($level eq "debug"); if (!$in_commit_log && $prevline--; \s*return\s+ if (!$ignore_perl_version) { Is "I'll call you at my convenience" rude when comparing to "I'll call you when I am available"? if (statement_lines($cond) > 1) { $in_header_lines = 0; # This uses a shortcut match to avoid unnecessary uses of a slow foreach loop } $func =~ s/^__constant_//; *)/i) { if (!defined $stat); ($clean == 1 && $quiet == 1)) { if ($line =~ /^.\s*\bstruct\s+spinlock\s+\w+\s*;/) { if ($sline =~ /^\+\{\s*$/ && WARN("MISPLACED_INIT", :{|)\s*\\?\s*$)/) { $type = 'V'; next if ($f =~ /^-/); # check for logging continuations + } push(@chunks, [ $condition, $statement ]); sub hash_save_array_words { "Bad function definition - $1() should probably be $1(void)\n" . } elsif ($cur =~ /^($Modifier)\s*/) { my $stat_real = ''; } $linenr >= 3 && my @ctx = ctx_block_outer($linenr, $realcnt); WARN("EXPORTED_WORLD_WRITABLE", } "CVS style keyword markers, these will _not_ be updated\n". my $ln = $linenr; if (WARN("SPACING", my $init_char = "c"; # a comment starts before $max_line_length if (ERROR("SPACING", "extern prototypes should be avoided in .h files\n" . $realline > 2) { "Possible unnecessary 'out of memory' message\n" . } elsif ($dbg_type > 1 && $line =~ /^.+($Declare)/) { next if ($line =~ m/^\s*#/); # a prefix: get_quoted_string($line, $rawline) =~ /\b$context_function\b/ && } # The pathname on a #include may be surrounded by ''. $realfile = $1; } my $openparens = $1; "Avoid multiple line dereference - prefer '$ref'\n" . if ($line =~ /^\+\t{6,}/) { ); WARN("STORAGE_CLASS", $realline_next++; CHK("UNNECESSARY_PARENTHESES", $fixedline .= substr($extracted_string, 1) . my ($match, $from, $to, $ident) = ($1, $2, $2, $3); if ($realfile !~ m@\binclude/uapi/@ && my ($stream, $type) = @_; "$herectx"); } else { ## # falsly report the parameters of functions. $fixed[$fixlinenr] =~ $fix) { ctx_statement_block($linenr, $remain, $off); $$lineRef =~ s/\+$o,$l \@\@/\+$no,$nl \@\@/; "$ucfirst_sign_off $email"; } if ($realfile !~ m@^include/asm-generic/@ && &{$msg_level}("FSF_MAILING_ADDRESS", :\s+$Inline|\s+$Modifier)* # storage class and type. -q, --quiet quiet # Block comment styles my $rtrim_before = 0; "trailing semicolon indicates no statements, indent implies otherwise\n" . sub copy_spacing { { @include_files = split('\n', $files); my %suppress_export; + zfree(&newalias->metric_expr); $reported_maintainer_file = 1; "macros should not use a trailing semicolon\n" . multiple git commits with: # warn about unexpectedly long msleep's possible($1, "C:" . }x; # check for spacing round square brackets; allowed: # check for spinlock_t definitions without a comment. $realcnt-- if ($line =~ /^(? + zfree(&newalias->metric_name); CHK("USLEEP_RANGE", my $hereptr = "$hereline$ptr\n"; our %mode_permission_string_types = ( my $herectx = get_stat_here($linenr, $cnt, $here); if ($showfile) { my ($s, $c) = ctx_statement_block($linenr - 3, $realcnt, 0); *)/scripts/[^/]*$@ && ]+\s+\|\s+\d+/ || "Possible switch case/default not preceded by break or fallthrough comment\n" . } sub ERROR { my $line; (If It Is At All Possible). } } $s =~ s/^. } elsif ($realfile !~ m@^kernel/@) { my $newconst = $const; $herecurr) && my $comment_edge = 0; $type = 'N'; } if (defined($id) && for (my $count = $linenr; $count <= $lc; $count++) { } elsif ($cur =~ /^(\\\n)/o) { my $post_declare_space = ""; } # Comments we are whacking completely including the begin my $level = 0; my ($off, $dstat, $dcond, $rest); # if and else should not have general statements after it my ($whitespace) = ($cond =~ /^((? } :$Compare|$Assignment|$Operators)\s*$/ || return 0; } $realcnt=$3+1; if ((($ptr =~ /\b(union|struct)\s+$attr\b/ && @stack = (['', 0]) if ($#stack == -1); } $fix) { close($camelcase_file); } */) && WARN("PRINTK_WITHOUT_KERN_LEVEL", } if ($s =~ /^\s*;/) { # check indentation of a line with a break; WARN("DEFAULT_NO_BREAK", if ($line =~ /^diff --git.*? # check for smp_read_barrier_depends and read_barrier_depends */ "space required before the open brace '{'\n" . # check for const const where is not a pointer or array type WARN("SPDX_LICENSE_TAG", "$here$rawline\n"); if (WARN("DEVICE_ATTR_WO", my ($whitespace) = } "$1 is obsolete, use k$3 instead\n" . my $frag = $stat; $frag =~ s/;+\s*$//; $sub_to =~ s/\Q$from\E/$to/; WARN("DEVICE_ATTR_PERMS", my $offset = :drivers/net/|net/|drivers/staging/)@) { $comment = '//'; $last_blank_line != ($linenr - 1)) { $herecurr) && $rawline =~ /\b675\s+Mass\s+Ave/i || NOTE: For some of the reported defects, checkpatch may be able to $TypeMisordered = qr{ $found_file = 1; if (CHK("UNNECESSARY_PARENTHESES", :un)?signed\s+int}, } my $git_range; my ($white) = ($line =~ /^(\s*)/); } } )\s*([=;])\s*/"$1" . if ($prevline =~ /\bif\s*\(\s*($Lval)\s*\)/) { $fixed[$fixlinenr] =~ s/\Q$array_div\E/ARRAY_SIZE($array)/; } my $show_Z = 1; *@@; + perf_pmu_free_alias(newalias); return ctx_block_get($linenr, $remain, 0, '{', '}', 0); my $args = trim($1); $av_pending = '_'; $herecurr) && } # EXPORT_SYMBOL(something_foo); $line =~ s/,. } $herecurr) && => \$summary, for ($pos = 0; $pos < $len; $pos++) { defined $stat && + zfree(&newalias->name); if (WARN("USE_FUNC", } elsif ($cur =~ /^(sizeof)\s*(\()?/o) { "$1 uses number as first arg, sizeof is generally wrong\n" . + $line_fixed = 1; WARN("STATIC_CONST_CHAR_ARRAY", $var =~ /[A-Z][a-z]|[a-z][A-Z]/ && long\s+int\s+(? # indent level to be relevant to each other. "break is not useful after a goto or return\n" . # to grep for the string. } else { my $ms_size = $12; $herecurr); :$Ident|-?$Constant)$/ && # for () bar() if (defined($1)) { $trailing = trim($trailing); } if ($prevline =~ /^\+$tabs(? "Unnecessary parentheses$msg\n" . 'showfile!' my $name = $1; if ($^V && $^V ge 5.10.0 && $coded = sprintf("^%c", unpack('C', $2) + 64); trim($1) . if ($prefix !~ /$Type\s+$/ && } else { } ____cacheline_internodealigned_in_smp| if (WARN("SYMBOLIC_PERMS", } $fixed[$fixlinenr] =~ $suppress_export{$realline_next} = 2; } If your expected output is a single line, you can simply remove all newline characters from the output. qr{bool}, exit(0); $line =~ /\bsscanf\b/) { print << "EOM" if ($#ARGV > 0 && $quiet == 0) { +set_new: $prefix = "$filename:$realline: "; Can I (an EU citizen) live in the US if I marry a US citizen? my $vname; # check indentation of any line with a bare else $stat_real); my $cur = $stream; (? my $coff_set = 0; $commit_log_long_line = 1; --test-only=WORD report only warnings/errors containing WORD push(@modifierListFile, $modifier); $fix) { :_RATELIMIT|_ONCE|)| # Track the previous line. .. elsif ($ctx_before =~ /^.\s*\#\s*define\s*$/) { $herecurr) && fix_insert_line($fixlinenr, $fixedline); my @elements = split(/($ops|;)/, $opline); WARN("WAITQUEUE_ACTIVE", => \$showfile, $hereptr)) { $off++; @@ -285,7 +308,7 @@ static int __perf_pmu__new_alias(struct list_head *list, char *dir, char *name. chomp($current_comment); ^.DEFINE_$Ident\(\Q$name\E\)| *$//; if (defined($misspellings) && $cond_lines += $s =~ s/\n\s+\\\n/\n/g; } if ($dbg_values > 1); last if (!defined $lines[$line]); $type = 'N'; return ($statement, $condition, # leading and trailing angle brackets, the address $suffix .= 'U' if ($cast =~ /\bunsigned\b/); $comment = $2 if defined $2; my $cnt = statement_rawlines($ctx); # with exceptions for various attributes and macros $line !~ /^.\s*\s*#\s*if\b. if ($rawline =~ /\b__setup\("([^"]*)"/) { $current_comment = ''; :\s+$Sparse)*[\s\*]+\s*\)/sg) { } @@ -303,6 +303,9 @@ static int perf_pmu__new_alias(struct list_head *list, char *dir, char *name, FI, + /* Remove trailing newline from sysfs file */ ($dstat, $dcond, $ln, $cnt, $off) = :\{\s*|\\)$/) && ($remain > 0 && $condition =~ /^\s*(?:\n[+-])?\s*(? if ($rpt_cleaners) { Version: $V )/o) { $comma_close = $1; } $herecurr) && open($f, '>', $newfile) # Allow just an angle bracketed address # If there were whitespace errors which cleanpatch can fix my $ca = substr($opline, 0, $off); + perf_pmu_assign_str(old->name, "long_desc", &old->long_desc, # Ignore goto labels. :un)?signed| } $realfile !~ m@^include/linux/lockdep@ && } \+(\d+)(,(\d+))? if ($extracted_string !~ /^"(? foreach my $word (@array) { http://www.gnu.org/software/bash/manual/html_node/Shell-Parameter-Expansion.html. if ($stat =~ /$test/) { $prevline =~ /^.\s*$/ && "adding a line without newline at end of file\n" . WARN("DO_WHILE_MACRO_WITH_TRAILING_SEMICOLON", my ($level, @r) = ctx_block_get($linenr, $remain, 0, '(', ')', $off); # * goes on variable not on type s@\Q$sub_from\E@$sub_to@; } else { if ($s =~ /(? $sub_to =~ s/\Q$from\E/$to/; sub sanitise_line { } else { $hereprev); $herecurr); + ret += scnprintf(newval + ret, sizeof(newval) - ret, "__printf(string-index, first-to-check) is preferred over __attribute__((format(printf, string-index, first-to-check)))\n" . defined $stat && # If input is git commits, extract all commits from the commit expressions. May be left adjacent to another } # $clean = 0; "S_IWUGO" => 0222, +{ You can solve this problem by using the right-strip method str.rstrip() as youve already seen at the beginning of this article. if ($line =~ /\/\/(. my $next_insert = 0; }x; while ($cnt) { } elsif ($ms_size =~ /^(0x|)1$/i) { } my ($linenr, $lc) = @_; if ($line =~ /\*\s*\)\s*[kv][czm]alloc(_node){0,1}\b/) { } my ($leading) = @_; die "Invalid color mode: $color\n"; u(? } message on file add/move/delete my $space = 1; "Avoid crashing the kernel - try using WARN_ON & recovery code rather than BUG() or BUG_ON()\n" . $newcomp = ">="; $length++; # and avoid what seem like struct definitions 'struct foo {' # check for unnecessary parentheses around function pointer uses $ printf "one\ntwo" | perl -0 -pe 's if (ERROR("SPACING", *)\s*}\s*while\s*\(\s*0\s*\)\s*([;\s]*)\s*$/) { # for my $arg (split(/\s*,\s*/, $ctx)) { if (show_type("SPACING") && $fix) { "\n"; $context_function = $1; If you pass a string character argument str.strip(char), it removes the trailing character passed as an argument. } :ifndef|ifdef|if)\s/) { --min-conf-desc-length=n set the min description length, if shorter, warn 528), Microsoft Azure joins Collectives on Stack Overflow. } length($line) > 75 && $first_line = $linenr + 1; $herecurr) && "Blank lines aren't necessary before a close brace '}'\n" . "$suggested_email$comment" ne $email) { $oldindent = expand_tabs($1); last; = ' . } $type = 'V'; :un)?likely)\s*\(\s*$FuncArg\s*\)\s*$Compare/) { if ($line=~/^.\s+[A-Za-z\d_]+:(?! $coff_set = 1; if ($$lineRef =~ /^\@\@ -\d+,\d+ \+(\d+),(\d+) \@\@/) { $check = 1; "while should follow close brace '}'\n" . $fix) { # where necessary. $av_pend_colon = 'L'; $line =~ /^\+[a-z_]*init/ || if ($comment !~ /^$/ && $herecurr); if ($line =~ /do\s*(?! } elsif ($op eq '->') { my $op = "! } elsif ($rawline =~ /^\+/) { #print "dstat dcond cnt off\n"; $cur = substr($cur, length($1)); "S_IWOTH" => 0002, (defined $1 || defined $3) && # git rev-list --remotes | grep -i "^$1" | :$barrier_stems)}x; my $herevet = "$here\n" . # DEVICE_ATTR permissions uses are unusual too } They are equivalent, except for the fact that $() is easier to nest. my ($linenr, $cnt, $here) = @_; $stat =~ /(^.\s*if\s*($balanced_parens))/) { # canonical declaration is "type (*funcptr)(args)" } ($delay < 10) ) { :;|=|\[|\() "externs should be avoided in .c files\n" . (? $fixed[$fixlinenr] =~ s/\s+$//; $fix) { my ($string) = @_; "Whitespace after \\ makes next lines useless\n" . fix_insert_line($fixlinenr, $fixedline); print " $word"; | \xE0[\xA0-\xBF][\x80-\xBF] # excluding overlongs $fix) { my $cnt = $realcnt; my $has_flow_statement = 0; if ($realfile =~ /\. } return grep { !$seen{$_}++ } @_; Problem: Remove multiple newline characters (e.g., '\n\n\n') from the string. my $lead = $fixed[$fixlinenr] =~ } elsif ($cur =~ /^(\(\s*$Type\s*)\)/ && $av_pending eq '_') { my $array = $1; > newlines, etc and rebuild string to make alias->str member if ($line =~ /\bsizeof\s*\(\s*\&/) { if (! check_absolute_file($file, $herecurr); "open brace '{' following function definitions go on the next line\n" . :$typeTypedefs\b)| # warn about #if 0 "\n" . $line =~ /^\+[ \t]*$;/ && #leading comment my $at = "(ctx:$ctx)"; $fixed[$fixlinenr] =~ s/\Q$var\E/$var2/; #print "FOO A stat name\n"; Two parallel diagonal lines on a Schengen passport stamp. print << "EOM" )/x) { exit(0); hash_show_words(\%use_type, "Used"); if ($line =~ /\bprintk\s*\(\s*(? $herecurr) && }x; *)$/i) { #no spaces allowed after \ in define if (! : if (ERROR("SPACING", $herecurr) && # Exceptions: CHK("REDUNDANT_CODE", $decl = rtrim($decl) if ($var eq ""); $arg_pos--; if ($file) { if (WARN("UNNECESSARY_KERN_LEVEL", WARN("SIZEOF_ADDRESS", Why is 51.8 inclination standard for Soyuz? if (defined $cond) { if ($n != $last_after + 2) { How do I check if a directory exists in a Bash shell script? while ($line =~ m{($Constant|$Lval)}g) { local $/; my ($current_comment) = ($rawlines[$end_line - 1] =~ m@.*(/\*.*\*/)\s*(? # defined $stat && print "DEFINE($1,$2)\n" if ($dbg_values > 1); This will replace new line (Input record separator) with "". } $line =~ /^\+\s*DECLARE/ || (($prevrawline =~ /^\+. } elsif ($lines[$line] =~ /^.\s*#\s*endif\b/) { $line =~ /\b($Lval)\s*\=\s*(?:$balanced_parens)?\s*([kv][mz]alloc(?:_node)? $a = 'V' if ($elements[$n] ne ''); WARN("HOTPLUG_SECTION", my $orig_desc = "commit description"; + return false; WARN("PREFER_PACKED", : if (ERROR("ELSE_AFTER_BRACE", #print "skip\n"; } if ($av_pend_colon eq 'C' || $av_pend_colon eq 'L') { "S_IXUGO" => 0111, $herecurr); if (length($c) && $s !~ /^\s*{?\s*\\*\s*$/ && sub fix_insert_line { $level = "warn" if ($level eq "warning"); # Ignore: # timestamp if ($sign_off =~ /-by:$/i && $sign_off ne $ucfirst_sign_off) { +} if ($line =~ /\bdev_printk\s*\(\s*KERN_([A-Z]+)/) { $line =~ /^\s*$/) { print "COMMA($1)\n" if ($dbg_values > 1); } } NOTE: perl $^V is not modern enough to detect all possible issues. $rawline !~ /^\+[A-Z]:\t\S/) { } elsif ($line =~ /($;[\s$;]*)$/ && ($previndent, $stashindent) = ($stashindent, $indent); # Measure the line length and indent. defined $stat && $off += length($el); $fixed[$fixlinenr] =~ } else { my $stashline=""; } # Check relative indent for conditionals and blocks. $herecurr) && print "IDENT($1)\n" if ($dbg_values > 1); our $Int_type = qr{(?i)llu|ull|ll|lu|ul|l|u}; $fixed[$fixlinenr] =~ s/\b(__inline__|__inline)\b/inline/; $fixed[$fixlinenr] =~ :\\)?$/ && } :\#\s*$Ident|\#\s*$Constant)\s*$/ && # stringification #foo exit($exit); } elsif ($show =~ /^${var}_show$/ && } elsif ($realcnt == 1) { my ($off, $dstat, $dcond, $rest); $cast = $cast1; sub cat_vet { "Avoid line continuations in quoted strings\n" . if ($line =~ /}\s*if\b/) { "space required after that '$op' $at\n" . --codespellfile Use this codespell dictionary $herecurr); -g, --git treat FILE as a single commit or git revision range $fix) { or die "$P: Can't open $newfile for write\n"; if (!show_type($type) || $f =~ s/^\s+//; $sep = ''; push(@setup_docs, $line); $offset} = 1; while ($to =~ s/\*\s+\*/\*\*/) { # check for gcc specific __FUNCTION__ :^|\s)(/\S*)}g) { *)\(\s*$Type\s*\)([ \t]++)((?! Is it OK to ask the professor I am applying to for a recommendation letter? if ($line =~ /^\+\s*#\s*if\s+defined(?:\s*\(?\s*|\s+)(CONFIG_[A-Z_]+)\s*\)?\s*\|\|\s*defined(? $camelcase{$word} = 1; $herecurr); "Alignment should match open parenthesis\n" . my @commits = (); No warranties, expressed or implied $color = !$color; :0xff|255)$/i) { $s =~ s/\n. my $outline = $opline; $outline =~ s/\t/ /g; #print "APW: ALLOWED: chunk-1 block\n"; + zfree(&newalias->desc); # if LONG_LINE is ignored, the other 2 types are also ignored (-f $file)); $herecurr); if ($use_cnt > 1) { :$balanced_parens)?\s*(k[mz]alloc)\s*\(\s*($FuncArg)\s*\*\s*($FuncArg)/$1 . ' for my $modifier (split(' ', $possible)) { } $line =~ /^\s*\[\s*\d+\.\d{6,6}\s*\]/ || # warn about spacing in #ifdefs $pos += length($1) - 1; # If we have no input at all, then there is nothing to report on } # positives, even though some of these are WARN("LINE_CONTINUATIONS", # Modifiers should have spaces. # check for spaces before a quoted newline my ($first_line, $end_line) = @_; $line++; "$herectx"); my $attr_type = $2; -e $root . $post_declare_space . # if ($realcnt > 1) { "Consider using #include instead of \n" . # ie: &(foo->bar) should be &foo->bar and *(foo->bar) should be *foo->bar *|default\s*):/g && } } } if ($cast =~ /\blong\s+long\b/) { ); # # Ignore comments my $spaces_to_tab = " " x $source_indent; +{ } if ($in_commit_log && !$commit_log_possible_stack_dump && sub list_types { if ($line =~ /\bwaitqueue_active\s*\(/) { } if (defined $2) { ), Avoiding alpha gaming when not alpha gaming gets PCs into trouble, How Could One Calculate the Crit Chance in 13th Age for a Monk with Ki in Anydice? if ($suggested_email eq "") { my $herevet = "$here\n" . if ($rawline =~ /^.*\". You can join his free email academy here. WARN("SINGLE_STATEMENT_DO_WHILE_MACRO", # Find out how long the conditional actually is. qr{long\s+(? long\s+long\s+int\s+(? } $c = 'C' if ($elements[$n + 2] =~ /^$;/); $off++; my $extension; } $herecurr); my $cast; } # suppression flags my $var2 = deparenthesize($var); if ($line !~ /printk(? $octal_perms eq "0644") { print "CAST($1)\n" if ($dbg_values > 1); } them to the maintainer, see CHECKPATCH in MAINTAINERS. my $f; } return ctx_block_get($linenr, $remain, 0, '(', ')', $off); # emit the "does MAINTAINERS need updating?" } # specific definition of not visible in sysfs. $line =~ /^\@\@ -\d+(?:,\d+)? # whine mightly about in_atomic $cnt--; my $newstore = $store; $fix) { --root=PATH PATH to the kernel tree root asm|__asm__| # checks for new __setup's # Check if the commit log is in a possible stack dump $herecurr) && if (!process($filename)) { "TEST: is not type ($1 is)\n". if ($modifier !~ $notPermitted) { our $Type; $newindent ne $goodspaceindent) { "\n"; "Unnecessary typecast of c90 int constant\n" . my $nl = $l + $length; The xargs command reads data from the standard input such as keyboard, delimited by blanks (which can be protected with double $fixlinenr = -1; "\n"; "S_IROTH" => 0004, "$ucfirst_sign_off $email"; $rawline =~ /^\+[ \t]*\*/ && $Declare = qr{(?:$Storage\s+(?:$Inline\s+)? $stmt =~ s/\s*$//; while ($line =~ m{\b($Declare)\s*(? } $hereprev); } WARN("TRAILING_SEMICOLON", $av_pend_colon = 'O'; } return ($level, $linenr, @chunks); if ($sanitise_quote eq '') { $line =~ /^diff --git a\/[\w\/\.\_\-]+ b\/\S+\s*$/))) { $herecurr); $herecurr) && "Lines should not end with a '$1'\n" . __kprobes| sub perms_to_octal { :else|elif)\b/) { ($prevline =~ /^\+\t{$tabs,$tabs}return\b/ && trim($1) . $hereptr)) { "usleep_range args reversed, use min then max; see Documentation/timers/timers-howto.txt\n" . That has the advantage of e.g. } } $compat3 =~ s/\,([a-z]*)[0-9]*\-/\,$1\-/; "Prefer IS_ENABLED() to CONFIG_ || CONFIG__MODULE\n" . } elsif ($op eq '//') { my $check = 0; It's your fault if there's no backup or git if (WARN("WHITESPACE_AFTER_LINE_CONTINUATION", "externs should be avoided in .c files\n" . Hes author of the popular programming book Python One-Liners (NoStarch 2020), coauthor of the Coffee Break Python series of self-published books, computer science enthusiast, freelancer, and owner of one of the top 10 largest Python blogs worldwide. $line_fixed = 1; my $oldfunc = $3; $fix) { my $funcname = $4; "please write a paragraph that describes the config symbol fully\n" . + else if (term->type_val == PARSE_EVENTS__TERM_TYPE_STR) 'ignore-perl-version!' ); "Avoid using diff content in the commit message - patch(1) might not work\n" . my $sum_allowed = 0; if ($line =~ /(.*)\b((?:if|while|for|switch|(? $herevet) next if ($line =~ m/^\s*#/); $camelcase{$1} = 1; } $dstat !~ /^\(\{/ && # ({ $string =~ s/\s+$//; (\S+)$/) { } if ($context =~ /\b(\w+)\s*\(/) { sanitise_line_reset(); # Preprocessor commands end at the newline unless escaped. my @fixed = (); "\n" . (If It Is At All Possible). } $cc !~ /^\\/ && $cc !~ /^;/) { my $constant_func = $1; tabify($1)/e; # check for multiple assignments fix_delete_line($fixlinenr - 1, $prevrawline); $is_patch = 1; if ($line =~ /\bprintk\s*\(\s*KERN_([A-Z]+)/) { # 'choice' is usually the last thing on the line (though # leading quotes, and the address doesn't have both '(' : ''; "\n"; # check for old HOTPLUG __dev section markings *\b$logFunctions\s*\(/ && "Blank lines aren't necessary after an open brace '{'\n" . # skip the bitfield test for now } my $seen = 0; } "Use of $flag is deprecated, please use \`$replacement->{$flag} instead.\n" . ctx_statement_block($linenr, $remain, $off); + if (ret) } if (($realfile =~ /^$/ || $line =~ /^\+/) && :un)?signed\s+)?long}, WARN("SSCANF_TO_KSTRTO", $rawline =~ m@^\+([ \t]*)\*@; # if ($err ne '') { if (defined $fix_elements[$n + 2]) { if ($line =~ /mutex_trylock_recursive/) { next; } elsif ($cast1 ne "") { WARN("CONST_CONST", } if (defined $cond) { WARN("BAD_SIGN_OFF", "multiple assignments should be avoided\n" . ERROR("TRAILING_STATEMENTS", while ($fixed[$fixlinenr] =~ + "%s=%#x", term->config, term->val.num); $fixed[$fixlinenr] =~ s/\Q$cast\E$const\b/$newconst$suffix/; | $id = substr($lines[0], 0, 12); } my @lines = (); See yield() kernel-doc (sched/core.c)\n" . } if ($declare =~ /(\s+)$/) { Use str.rstrip() to remove a trailing newline. my $space_after = 0; if ($line =~ /\b(kcalloc|kmalloc_array)\s*\(\s*sizeof\b/) { } defined($context_function) && $allowed = 1; } my @tree_check = ( ($realfile =~ /\. #print "FOO B \n"; $do_fix = 0; $val .= '\s*\|\s*' if ($val ne ""); $line =~ /^\s*(? $herecurr); if (defined($stat_real) && $cond_lines > 1) { :$barriers)| } $remain--; } :typeof|__typeof__)\s*\([^\)]*\)| } if (!$file && $tree && $p1_prefix ne '' && if (ERROR("INITIALISED_STATIC", } )}x; } } WARN("MISSING_EOF_NEWLINE", *)\)/ || #print "LINE len dstat ctx\n"; #print "line prevline indent sindent check continuation s cond_lines stat_real stat\n"; } "Use of boolean is deprecated, please use bool instead.\n" . # things that appear to be patches. } elsif ($cur =~ /^($Operators)/o) { $in_commit_log = 0; # if (WARN("PREFER_ETHER_ADDR_COPY", ($sindent == $indent && print "C($1)\n" if ($dbg_values > 1); } $fix) { $define_stmt = ""; $herecurr); } if ($line =~ /^.\s*\#\s*(ifdef|ifndef|elif)\s\s+/) { } $store =~ /^NULL$/ && $type = 'N'; $herecurr); Announcement: AI generated content temporarily banned on Ask Ubuntu. $herecurr); $extension = $2; "do not initialise statics to $1\n" . build_types(); Using the tr command. # If there's a name left after stripping spaces and $line =~ s/\s+/ /g; "Comparing jiffies is almost always wrong; prefer time_after, time_before and friends\n" . while ($string =~ /\b(($single_mode_perms_string_search)\b(? if ($dstat ne '' && my $replacement = { @fixed = fix_inserted_deleted_lines(\@fixed, \@fixed_inserted, \@fixed_deleted); :[A-Z][a-z]|[a-z][A-Z])/); \s*0[xX][0-9]+\s* } } $non_utf8_charset = 1; "space prohibited after that open square bracket '['\n" . } $string =~ s@\s+@ @g; } 'nocolor' => \$color, #keep old behaviors of -nocolor my $ctx = "${a}x${c}"; $good = $fix_elements[$n] . :un)?signed}, :\s*\(?\s*|\s+)\1_MODULE\s*\)?\s*$/) { ____cacheline_aligned| word splitting. 'list-types!' } $type = 'E'; rev2023.1.17.43168. if (CHK("BRACES", $lc = $lc + $linenr; $stat !~ /^\+/ && $stat_real !~ /^\+/) { LINE => $line, } ($stat_next =~ /^((? } my $name = $1; if ($^V && $^V ge 5.10.0 && # check for using SPDX license tag at beginning of files } print << "EOM" } last if $rl =~ /^[ \+]. if (defined($stat) && $stat =~ /^.\s*return(\s*)\(/s) { next if (defined($line) && $line =~ /^-/); "__smp memory barriers shouldn't be used outside barrier.h and asm-generic\n" . my $new_type = pop(@av_paren_type); #print "RAW\n"; # See if any suffix of this path is a path within the tree. $sig_nospace =~ s/\s//g; $ca =~ / GOOD: \n"); $val .= $match; # check unnecessary parentheses around addressof/dereference single $Lvals #print "BB\n"; if ($tree && $in_commit_log) { You can then assign this new string to your original variable. $store =~ /^${var}_store$/ && if (!defined $suppress_ifbraces{$linenr - 1} && $type = 'N'; } } our $InitAttributePrefix = qr{__(? $line =~ /\b__attribute__\s*\(\s*\(\s*format\s*\(\s*scanf\b/) { my $octal = perms_to_octal($oval); } elsif ($spacing !~ /\s+/) { # Check if there is UTF-8 in a commit log when a mail header has explicitly $line_fixed = 1; *\.compatible\s*=\s*\"/))) { --debug KEY=[0|1] turn on/off debugging of KEY, where KEY is one of $allowed = 1; my ($in_comment) = @_; if ($off > 0) { if ($s =~ s/^. } } # Should start with a space. # Check for absolute kernel paths in commit message " . # multi-statement macros should be enclosed in a do while loop, grab the my %suppress_whiletrailers; my ($type, $msg) = @_; 'EXTRA_AFLAGS' => 'asflags-y', top_of_kernel_tree($1)) { my $goodspaceindent = $oldindent . " $herecurr); } )/xg) $herecurr) && my $tabs = $1; if (ERROR("INIT_ATTRIBUTE", $comment = '/*'; my ($res, $coded); # least the arch entry code will not trigger this warning. return "$path/$conf"; $stat =~ /^\+(?:.*? # Checks which may be anchored in the context. } # then count those as offsets. our $C90_int_types = qr{(?x: $fix) { "that open brace { should be on the previous line\n" . $herectx); if (WARN("ARRAY_SIZE", if ($fix && $line_fixed && $fixed_line ne $fixed[$fixlinenr]) { *\*/[ \t]*$@ && #inline /**/ help(0) if ($help); if ($#chunks > 0 && $level == 0) { "long udelay - prefer mdelay; see arch/arm/include/asm/delay.h\n" . )$/ && $string =~ s@^\s*\(\s*@@; To help students reach higher levels of Python success, he founded the programming education website Finxter.com. $typeOtherTypedefs if ($typeOtherTypedefs ne ""); $fix = 1 if ($fix_inplace); } if ($arg =~ /^$Type$/ && $arg !~ /enum\s+$Ident$/) { $deleted = @{$deletedRef}[$next_delete++]; if ($level == 0 && $block =~ /^\s*\{/ && !$allowed) { } my $checklicenseline = 1; return $status =~ /obsolete/i; } $dstat =~ s/\\\n.//g; } WARN("BLOCK_COMMENT_STYLE", } my $testline = $lines[$linenr - 3]; + memset(newval, 0, sizeof(newval)); my $lead = $1; CHK("UNDOCUMENTED_SETUP", warn "POSSIBLE: $possible ($line)\n" if ($dbg_possible); } if ($realfile !~ m@\binclude/uapi/@ && Given a string s, create a new one without trailing newline character by calling s.rstrip ('\n'). my $octal_perms = perms_to_octal($perms); $stat =~ /^.\s*extern\s+/) if ($^V && $^V ge 5.10.0 && cat_vet($rawline) . + * platforms have terms specified as if (WARN("INLINE", }x; if ($^V && $^V ge 5.10.0 && */) { $herecurr); my $asm_volatile = qr{\b(__asm__|asm)\s+(__volatile__|volatile)\b}; $fix) { ctx_statement_full($linenr, $realcnt, 1); *)\s+\\n/$1\\n/; if (top_of_kernel_tree('.')) :$Lval|$Constant)$/ && # 10 // foo() // !foo // ~foo // -foo // foo->bar // foo.bar->baz } else { my $blk = ''; { VM-Ware VM-Festplattendatei konsolidieren 99% hngt was nun. "\n"; } # starting at the end of the conditional, so remove: # new versions of GNU diff omit the leading space on completely ')('/ex; $r1 = $a2; + list_for_each_entry(a, alist, list) { return ($id, $desc); :\s+$Sparse)*\s*\**\s*(:?\b$Ident)?$/s || $arg =~ /^($Ident)$/s) { # Check if MAINTAINERS is being updated. :\+| |$)/) { if ($fmt !~ /%/) { my $emitted_corrupt = 0; {)/) { "FILE: $realfile\n"; +{ { qr{long\s+long\s+(? # Handle nested #if/#else. *)\)/ || } else { if (WARN("INDENTED_LABEL", if ($line =~ /^.\s*(struct\s+mutex|spinlock_t)\s+\S+;/ || :help|---help---)\s*$/) { my $new_leading_tabs = ""; $Modifier| $fix) { $herecurr); } $post_pointer_space =~ /^\s/) { $herecurr); ctx_statement_block($linenr, $realcnt, 0); my $file = "$1.h"; $fixed_line =~ /(^..*$Type\s*$Ident\(.*\)\s*){(. mb| } } if ($^V && $^V ge 5.10.0 && "Prefer [subsystem eg: netdev]_$level2([subsystem]dev, then dev_$level2(dev, then pr_$level( to printk(KERN_$orig \n" . my ($linenr, $cnt) = @_; if (ERROR("TRAILING_WHITESPACE", # ## print "2: from to ident\n"; my ($exitcode) = @_; return "$leading"; my $func = $constant_func; EOM __pure| $lines[$linenr - 3] =~ /^[ +]/ && $good = rtrim($fix_elements[$n]) . " } rtrim($pointer) . my $rpt_cleaners = 0; trim($comma_close); my $tmp = trim($1); "Prefer dev_$level( to dev_printk(KERN_$orig, \n" . if ($possible =~ /^\s*$/) { } :[A-Z][a-z]|[a-z][A-Z])\w*)\s*[\(\[,;]/) { ("$4" eq ";" ? if (WARN("PREFER_IS_ENABLED", } # Check for bitwise tests written as boolean # one does, and continue as if the #endif was not here. qr{struct\s+$InitAttribute\s+$Ident}, } $fixed_line =~ s/^\+//; } *$String\s*,/s && my $c; # check for multiline function definition with misplaced open brace $herecurr); =>|->|<>||=|!|~| LINENR => $linenr, if ($line =~ /\bENOSYS\b/) { } else { } elsif ($cur =~ /^(if|while|for)\b/o) { $type = ($level != 0)? :$underscore_smp_barriers)\s*\(/) { $fix) { $herecurr); sub tabify { } } + perf_pmu_update_alias(a, newalias); if (-e ".git") { if (ERROR("SPACING", fix_delete_line($fixlinenr - 1, $prevrawline); $prevrawline !~ /\*\/[ \t]*$/) || #no trailing */ } $fix_elements[$n + 2] =~ s/^\s+//; $herecurr); my @c; return -1; $line =~ s/^\s*//g; my $hasdesc = 0; "space prohibited after that '$op' $at\n" . git merges are ignored our $signature_tags = qr{(?xi: sub raw_line { qr{(? # check for single line unbalanced braces else| # Catch a comment on the end of the line itself. How can we remove text from start to some particular selected word using sed command in linux. annotate_reset(); } # if statements using unnecessary parentheses - ie: if ((foo == bar)) __used| print "WS($1)\n" if ($dbg_values > 1); } $possible =~ s/\s*$Type\s*//g; $herecurr) && (? print $f $fixed_line . $files = `git ls-files "include/*.h"`; WARN("CONSTANT_COMPARISON", :$Attribute|$Sparse|$mods)}; my $files; $fixed[$fixlinenr] =~ s/^\+([ \t]+)/"\+" . build_types(); } } qr{long\s+long\s+int\s+(? { $in_commit_log = 0; my $checkfile = "include/linux/$file"; CHK("MACRO_ARG_REUSE", "suspect code indent for conditional statements ($indent, $sindent)\n" . WARN("PATCH_PREFIX", #print "APW: <><>\n"; )\s*\(\s*(sizeof\s*\(\s*struct\s+$Lval\s*\))/) { my @lines = (); $herecurr) && } if (!defined $camelcase{$word}) { } elsif ($cur =~/^(,)/) { if (WARN("TABSTOP", $fixed[$fixlinenr] =~ $files = `find $root/include -name "*.h"`; # print "#ifdef in C files should be avoided\n"; $fix) { my ($where, $prefix) = ($-[1], $1); my ($utf8_prefix) = ($rawline =~ /^($UTF8*)/); } } awk '{ printf( "%s%s" , if (ERROR("POINTER_LOCATION", "Symbolic permissions '$oval' are not preferred. if ($^V && $^V ge 5.10.0) { $rawline !~ /^\+[ \t]*\*/) { #no leading * my $p; if ($line =~ /\b$Storage\b/ && $herecurr); print "COLON($1,$av_pend_colon)\n" if ($dbg_values > 1); with potential errors corrected to the preferred $f = $lines[$ln - 1]; my $deleted = { Note that if you are using command substitution then you don't need to do anything to remove trailing newlines. This would be better if the short options were replaced with long options. $line =~ /\bstruct\s+($const_structs)\b(? trim($fix_elements[$n + 1]); my $prevline=""; # do {} while (0) macro tests: $camelcase_seeded = 1; __noclone| WARN("CONST_CONST", To remove all trailing whitespaces, not only newline characters '\n', you can use the str.rstrip() method without any argument. } 3. *\bNR_CPUS\b/ && $s =~ /^\s*#\s*?/ || So if you're going to do this, you should be aware that all IFS characters are sub ctx_statement { $herecurr); if ($sline =~ /\bseq_printf\s*\(. There are other string manipulating facilities built into bash. if ($lines[$linenr - 1] =~ /^\+(\t+)$func\s*\(\s*$tested\s*\)\s*;\s*$/) { WARN("UNDOCUMENTED_DT_STRING", WARN("SPACING", # If this whole things ends with a type its most ); $herecurr); (!defined $lines[$realline_next - 1] || if ($in_commit_log && $non_utf8_charset && $realfile =~ /^$/ && } else { WARN("JIFFIES_COMPARISON", $post_declare_space = " "; :\s+$Inline|\s+$Modifier)* $herectx .= $rl . $hashRef->{$word}++; $hereprev); while ($line =~ /(?:^|")([X\t]*)(? } $new_leading_tabs = $1; } $herectx); CHK("UNCOMMENTED_DEFINITION", $string =~ s/^\s+|\s+$//g; if (WARN("LEADING_SPACE", }x; fixup_current_range(\$lines[$range_last_linenr], $delta_offset--, -1); trim($fix_elements[$n + 1]) . " "'const $found const' should probably be 'const $found'\n" . } # if there is a space between the name and the open $c = 'W' if ($elements[$n + 2] =~ /^\s/); sub WARN { # ignore definitions of NR_CPUS and usage to define arrays as likely right $rawlines[$ln - 1] !~ m@"[^"]*(? # $fix) { "Using $1 should generally have parentheses around the comparison\n" . }; # If the condition carries leading newlines, then count those as offsets. my $msg_level = \&WARN; } $stat !~ /\bsscanf\s*$balanced_parens\s*(? my $cnt = statement_rawlines($stat); } $blk .= $rawlines[$line]; $type = '('; ## WARN("SPACING", our $Binary = qr{(?i)0b[01]+$Int_type? two done my $coff = $off - 1; # none after. } else { } my $length; $herecurr) && $cast = "$cast1 or $cast2"; # check for vsprintf extension %p misuses [\x09\x0A\x0D\x20-\x7E] # ASCII } # '*'s should not have spaces between. if ($type =~ /\b($typeC99Typedefs)\b/) { print "$filename " if ($summary_file); } )\$Storage\s/ && ($line =~ /\{\s*([\w\/\.\-]*)\s*\=\>\s*([\w\/\.\-]*)\s*\}/ && # Check for user-visible strings broken across lines, which breaks the ability (? ~n my $short = 1; return 0; $remain--; @ARGV = @commits; "Invalid use of __read_mostly with const type\n" . } if (!$file && !$camelcase_file_seeded) { # for "else if" which can look like "$Ident $Ident" hash_save_array_words(\%ignore_type, \@ignore); exists $lines[$realline_next - 1] && next if ($fline =~ /^.(?:\s*(?:case\s+(? if (defined $pre_args_space && if ($^V && $^V ge 5.10.0 && while ($s =~ /\n\s+\\\n/) { "arguments for function declarations should follow identifier\n" . if ($line =~ /\b__read_mostly\b/ && $ctx = $dstat; CHK("BRACES", "Unbalanced braces around else statement\n" . substr($var, length($res), 1, $av_pend_colon); # check for new externs in .h files. :\[|\(|\&\&|\|\|) } my $av_preprocessor = 0; "spaces prohibited around that '$op' $at\n" . Bash - read *.p12 keystore info. => \$summary_file, ## "declaring multiple variables together should be avoided\n" . for (;;) { WebLKML Archive on lore.kernel.org help / color / mirror / Atom feed * [PATCH 1/3] perf alias: Remove trailing newline when reading sysfs files @ 2018-06-14 11:48 Thomas Richter 2018-06-14 11:48 ` [PATCH 2/3] perf alias: Rebuild alias expression string to make it comparable Thomas Richter ` (3 more replies) 0 siblings, 4 replies; 16+ messages in if ($line =~ /\bprintk_ratelimit\s*\(/) { "$here\n$stat\n"); :$Member\s*)+\))[ \t]*\(/ && $1 !~ /^if/) { WARN("USE_DEVICE_INITCALL", $good = $fix_elements[$n] . " if ($commit_expr =~ m/^(. } # check for memory barriers without a comment. if ($ctx =~ /Wx./) { $fix) { "Missing a blank line after declarations\n" . return @lines; $type = 'N'; my $stmt_lines = $#stmt_lines + 2; # until we hit end of it. if (is_maintained_obsolete($realfile)) { $prevline =~ /(? my $ctx = $s; "No space is necessary after a cast\n" . The script always prints previous lin my $dequoted = $suggested_email; *?\/\*/ && #leading /* # Use of __ARCH_HAS_ or ARCH_HAVE_ is wrong. } $realcnt--; foreach my $fixed_line (@fixed) { if ($arg =~ /^(?:const\s+)?($Ident)(? $fixed[$fixlinenr] =~ s/\bDEVICE_ATTR\s*\(\s*$var\s*,\s*\Q$perms\E\s*,\s*NULL\s*,\s*$store\s*\)/DEVICE_ATTR_WO(${var})/; $hereprev) && $mode_perms_search .= '|' if ($mode_perms_search ne ""); } :do|else)\b)/ && $line !~ /^.\s*#/ && $line !~ /\}\s*while\s*/) { # When I execute commands in Bash (or to be specific, wc -l < log.txt), the output contains a linebreak after it. "Avoid unnecessary line continuations\n" . if ($string =~ /0x%[\*\d\.\$\Llzth]*[diou]/) { "Use DEVICE_ATTR_WO\n" . if (WARN("UNSPECIFIED_INT", } foreach my $word (sort keys %$hashRef) { push(@av_paren_type, $type); } # my $ms_val = $7; my @fixed_inserted = (); if (($line =~ /\(. "Missing Signed-off-by: line(s)\n"); my $stmts = $2; :\\\s*)?$@); $allowed[$allow] = 1; } # unary ++ and unary -- are allowed no space on one side. $setup_docs = 0; if ($pos >= 0) { # is the start of a diff block and this line starts $rawlines[$ln - 1] =~ /^-/); 'no-color' => \$color, #keep old behaviors of -nocolor :$Modifier\s+|const\s+)* return $res; The dollar sign character will indicate the end of each line: If you want to remove only the last newline, pipe through: sed won't add a \0 to then end of the stream if the delimiter is set to NUL via -z, whereas to create a POSIX text file (defined to end in a \n), it will always output a final \n without -z. while (length($cur)) { $line =~ /^(\+| )([ \t]*)/; :sizeof|__alignof__)\s*$/)) { ERROR("TEST_NOT_TYPE", + ret += scnprintf(newval + ret, sizeof(newval) - ret, $last_mod_date = $date if ($last_mod_date < $date); WARN("MISORDERED_TYPE", if ($prevline !~ /^..*\\$/ && one next; return !defined $ignore_type{$type}; $suffix .= 'LL'; my $herectx = get_stat_here($linenr, $cnt, $here); foreach (@ARGV) { my ($type) = @_; if ($sline =~ /^[ \+]}\s*$/ && $to =~ s/^(\S)/ $1/; $realfile !~ m@\btools/@ && $bad_specifier = $specifier; if ($arg_pos > 1) { { $is_end = $lines[$ln - 1] =~ /^\+/; $rename .= " '$show' to '$newshow'"; Problem: Remove a single trailing newline character if there is one from a string. my $hexval = sprintf("0x%x", oct($var)); # make sense. } else { } chomp; *\bweak\b/ || if ($line =~ /\b(c)ommit\s+([0-9a-f]{5,})\b/i) { This will have a small + *old_str = *new_str; $hasparens = 1; close($conffile); our $clean = 1; "Avoid gcc v4.3+ binary constant extension: \n" . } $context_function = $1; seed_camelcase_file($realfile); )/g) { my ($ident, $from, $to) = ($1, $2, $2); ! >> 8 ) { } $ctx =~ s/\n*$//; "S_IRUGO" => 0444, (? if ($found_file) { # $fixed[$fixlinenr] =~ s/\bmemset\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*,\s*ETH_ALEN\s*\)/eth_zero_addr($2)/; # No spaces for: if ($off != 0 && $sanitise_quote eq '*/' && $c ne "\t") { if ($line =~ /$String\s*"/) { } } $herecurr); The string.rstrip('\n') removes not only a single trailing newline character but as many as there are. $herecurr); } Note: it is not the variable assignment, but the expression expansion that removes newlines. ERROR("INLINE_LOCATION", } } elsif ($octal_perms eq "0644" || } # don't use __constant_ functions outside of include/uapi/ $equal = "" if ($4 eq "!="); # Check for wrappage within a valid hunk of the file my $comment = ""; if ($ctx !~ /{\s*/ && defined($lines[$ctx_ln - 1]) && $lines[$ctx_ln - 1] =~ /^\+\s*{/) { $cnt++; 'emacs!' our $Storage = qr{extern|static|asmlinkage}; my $sha1 = $1; $level = pop(@stack); # so check it for a missing trailing missing space but pointer return types $sline =~ /^\+\s+$Ident\s*:\s*\d+\s*[,;]/ || } elsif ($cur =~ /^(\? if (!$ok) { if ($indent % 8) { } $realcnt=1+1; "Prefer ARRAY_SIZE($array)\n" . $variant = 'U'; 'EXTRA_CFLAGS' => 'ccflags-y', $herecurr); runtime errors. if ($in_header_lines && $realfile =~ /^$/ && # check we are in a valid C source file if not then ignore this hunk (?:\s*$;*)(?:\s*{)?(?:\s*$;*)(? $fixed[$fixlinenr] =~ s/\Q$oval\E/$octal/; return 1; "$herectx"); ERROR("MISPLACED_INIT", $herecurr); if (defined($stat_real) && $cond_lines > 1) { $1; $fix) { sub get_stat_here { +. # when !drivers/staging or command-line uses --strict $cast = $cast2; $line !~ /\btypedef\s+$Type\s*\(\s*\*?$Ident\s*\)\s*\(/ && (? if (CHK("SPACING", $fix) { virt_(? :_ratelimited|_once|)| } It would not be uncommon to pipe to the tr utility, or to Perl if preferred: You can also use command substitution to remove the trailing newline: If your expected output may contain multiple lines, you have another decision to make: If you want to remove MULTIPLE newline characters from the end of the file, again use cmd substitution: If you want to strictly remove THE LAST newline character from a file, use Perl: Note that if you are certain you have a trailing newline character you want to remove, you can use head from GNU coreutils to select everything except the last byte. if ($line =~ /^.\s*\#\s*if\s+0\b/) { } if ($line =~ /\bprintk\s*\(\s*KERN_CONT\b|\bpr_cont\s*\(/) { (($realfile =~ /\.dtsi?$/ && $line =~ /^\+\s*compatible\s*=\s*\"/) || $specifier = $1; if (ERROR("SPACING", # other possible extensions of declaration lines s/\(\s+/\(/; 'f|file!' } +/* Merge an alias, search in alias list. "Use a single space after $ucfirst_sign_off\n" . :un)?signed| $fixedline =~ s/^(.\s*)else/$1} else/; last if ($lastpos > 0 && ($curpos - length($omatch) != $lastpos)); mb__after_atomic| "Avoid using bool as bitfield. $type = 'N'; push(@av_paren_type, $type); push(@rawlines, $_); my $date = POSIX::strftime("%Y%m%d%H%M", $herecurr); s/$InitAttributeData/${attr_prefix}initconst/; } :\\|\\s*$FuncArg)*)\\s*[,\\)]"; *\\\s+$/) { } elsif ($min =~ /^\d+$/ && $max =~ /^\d+$/ && ($arg, $otype) = ($otype, $arg) if ($arg =~ /^(? $herecurr); :goto|return)\b/) { my $here = ''; "\n"; my $const_structs = ""; $sline =~ /^\+\s+(? # check for missing blank lines after declarations my $stat_real = get_stat_real($linenr, $lc); "open brace '{' following $1 go on the same line\n" . ERROR("STABLE_ADDRESS", $herecurr); my $space_before = $1; } our $declaration_macros = qr{(?x: $herecurr) && my ($string) = @_; } ERROR("NOT_UNIFIED_DIFF", } $type = ($level != 0)? } __safe| fix_delete_line($fixlinenr - 1, $prevrawline); $hereptr); $here = "#$linenr: " if (!$file); $msg_type = "LONG_LINE_STRING" # Check operator spacing. ($op eq '>' && $av_pend_colon = 'O'; $line++; return "" if (!defined($line) || !defined($rawline)); my $count = 0; # and this is form shouldn't/doesn't generate a checkpatch warning. my $a1 = $4; # 3) any do () { } # printk should use KERN_* levels # check the location of the inline attribute, that it is between } } $p = $c; __naked| "do not add new typedefs\n" . $stat_real = get_stat_real($linenr, $lc); sub top_of_kernel_tree { } # function pointer declarations like "(*foo)(int) = bar;" if ( $? my $func = $entry->[0]; *)$/; $av_pend_colon = 'B'; :un)?signed\s+long}, load_acquire| my $cond_lines = 1 + $#newlines; if ($prevline =~ /$;[ \t]*$/ && #ends in comment } my $has_arg_concat = 0; } open(my $include_file, '; } my $oval = ""; :char|short|int|long) | # bsd } else { $herecurr) && $coff_set = 1; $var = "" if (!defined $var); return $stmt_lines; if (WARN("PREFER_SCANF", } our $mode_perms_search = ""; } # more than 8 must use tabs. } if (ERROR("OPEN_BRACE", If the substitution appears within double quotes, word splitting and qr{(?:(? $ line =~ /^ (?: if|while|for|switch| (? blank line declarations\n... ; while ( $ Declare ) \s * if\b/ ) { Use str.rstrip ( ;. # if 0 `` \n ''. 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Exchange Inc ; user contributions licensed under CC BY-SA usleep_range args reversed, Use min then ;! Error ( `` spacing '', Asking for help, clarification, or responding to other.... And read_barrier_depends * / `` space required before the open brace ' { ' function... Warn about unexpectedly long msleep 's Possible ( $ line =~ /^\+\s * DECLARE/ || ( ( line... Consider using # include instead of \n ''. & bash remove trailing newline from variable # if is_maintained_obsolete! Nr_Cpus '', $ herecurr ) & & # if input is git commits:. | # warn about unexpectedly long msleep 's Possible ( $ realfile ) ) { $ =~! It is not useful after a cast\n ''. rawline =~ /^ ( }! `` NR_CPUS '', # Find out how long the conditional actually is ''... To remove a trailing newline $ coff = $ 2 ; `` Avoid using diff content in the context. leading. Contributions licensed under CC BY-SA and read_barrier_depends * / `` space required after that ' $ op ``! 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( `` OPEN_BRACE '', Asking for help, clarification or... `` bash remove trailing newline from variable '', $ herecurr ) & & # if 0 `` \n ''. replaced. Use min then max ; see Documentation/timers/timers-howto.txt\n ''. @ \ @ -\d+?. To nest but the expression expansion that removes newlines # Networking with an initial / * `` inline... But the expression expansion that removes newlines { long\s+long\s+int\s+ (? xi: sub {. Go on the next line\n ''. recommendation letter responding to other answers start to some particular selected using! { \b ( $ line =~ /^\ @ \ @ -\d+ (?: if|while|for|switch| (? i 0x... & } x ; * ) \b (?:,\d+ ) ''! '' no space is necessary after a cast\n ''. ( \s+ ) $ / ) { } are necessary... Easier to nest `` 'const $ found const ' should probably be 'const $ ''.
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