A Python Script Uncovers the Answer! | $NON_ASCII_UTF8 $prevline =~ /($Lval\s*(? } $line =~ /^\+\s*\#\s*(? my $typo_fix = $spelling_fix{lc($typo)}; --show-types show the specific message type in the output 'no-color' => \$color, #keep old behaviors of -nocolor "$here\n$stat\n"); next if ($line =~ m/^\s*$/); Can I (an EU citizen) live in the US if I marry a US citizen? trim($1) . my $space_after = $3; print << "EOM" cat_vet($rawline) . if ($sline =~ /^\+\{\s*$/ && WARN("EMAIL_SUBJECT", } $check) { } elsif ($line =~ /($;[\s$;]*)$/ && "patch prefix '$p1_prefix' exists, appears to be a -p0 patch\n"); CHK("ASSIGNMENT_CONTINUATIONS", $herecurr) && # actual declarations if (substr($line, 0, $-[0]) =~ /(\}\s*)$/) { (? } $possible =~ s/\s*$Type\s*//g; :$typeTypedefs\b)| :\+| |$)/); :\s+$Modifier|\s+const)* return $#stmt_lines + 2; our $UTF8 = qr{ if ($suggested_email eq "") { :\(\s*){2,})/) { # Find out what is on the end of the line after the (? } if (($op eq '/) || "spaces prohibited around that '$op' $at\n" . } } if ($^V && $^V ge 5.10.0 && # * goes on variable not on type "while should follow close brace '}'\n" . if ($val =~ /^$Octal$/ && (oct($val) & 02)) { ) } my $prefix = ''; if ($line =~ /\s\]/) { sub which { "fs", "init", "ipc", "kernel", "lib", "scripts", } else { if ($comp eq "=="); substr($curr_vars, $off, 1); } if ($type =~ /^(? GPL\ v2| `grep -Erq "$compat|$compat2|$compat3" $dt_path`; "Prefer $newfunc over $oldfunc with multiply\n" . $line_fixed = 1; if ($line =~ /^\s*cc:\s*.*\bstable\@kernel\.org\b>?. } my $herectx = get_stat_here($linenr, $cnt, $here); our $clean = 0; } # For example, HEAD-3 means we need check 'HEAD, HEAD~1, HEAD~2'. "\n"; # unary operators should have a space before and } $sig_nospace =~ s/\s//g; print "OP($1)\n" if ($dbg_values > 1); if (statement_block_size($block) > 1) { $do_fix = 0; $reported_maintainer_file = 1; my $fixed_line = $rawline; $herecurr); } $color = !$color; # Check for __attribute__ weak, or __weak declarations (may have link issues) *?\/\*/ && #leading /* } ## no critic "code indent should use tabs where possible\n" . > '/. How do I iterate over a range of numbers defined by variables in Bash? print "PRE_END($1)\n" if ($dbg_values > 1); # the $Declare variable will capture all spaces after the type $s =~ /^\s*?\n/ || push(@setup_docs, $line); $line =~ /\b((? if (ERROR("FUNCTION_WITHOUT_ARGS", \n. if ($tree) { } $res .= $c; )?$Type}; *$//; if (($type eq '' || $type eq '(') && $c eq '(') { length(expand_tabs(substr($line, 1, length($line) - length($1) - 1))) <= $max_line_length) { $fixed[$fixlinenr] =~ s/[\s\015]+$//; } my %suppress_export; if ($first) { } $orig_commit = lc($2); my $has_statement = 0; :nchar|short|int|long) # sysv } $fixedline =~ s/^(.\s*)\{\s*/$1/; # In mailback mode only produce a report in the negative, for } # known declaration macros } } my $a1 = $4; ## while ($ln =~ s/\([^\(\)]*\)//g) { our @typeListFile = (); } In this case I've had to use ${var%%[[:space:]]}. $fix) { "open brace '{' following function definitions go on the next line\n" . while (defined($inserted) && ${$inserted}{'LINENR'} == $old_linenr) { if ($tmp_stmt =~ m/($Operators)?\s*\b$arg\b\s*($Operators)?/m && } } "; } } } } } my $var = $2; $in_header_lines = 0; # check for switch/default statements without a break; if (WARN("PREFER_IS_ENABLED", $mode_perms_string_search .= '|' if ($mode_perms_string_search ne ""); )\bmemset\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\,\s*ETH_ALEN\s*\)/) { } +{ qr{enum\s+$Ident}, s/\bpr_warning\b/pr_warn/; # Check if it's the start of a commit log } else { $herecurr); # check spacing on square brackets "Do not use whitespace before $ucfirst_sign_off\n" . } :\s|\}|\+)/) && defined $lines[$ctx_ln - 1] && '(*' . $fix) { # context. "$here\n$stat_real\n"); $herecurr); $oldindent = expand_tabs($1); my @stmt_array = split('\n', $define_stmt); print(++$count . my $file = "$1.h"; ERROR("IN_ATOMIC", "space prohibited between function name and open parenthesis '('\n" . my @lines = (); my $old_linenr = 0; if ($path =~ m{//}) { if (defined $2) { } } "__setup appears un-documented -- check Documentation/admin-guide/kernel-parameters.rst\n" . } $fix) { my ($cond, $block) = @{$chunk}; sub possible { WARN("PRINTF_L", $sum_allowed += $_; $prevrawline !~ /\*\/[ \t]*$/ && #no trailing */ :|\?|: foreach my $line (@lines) { if ($value =~ m/^\s*$FuncArg\s*(? "\n"; $herecurr) && $declare . --ignore-perl-version override checking of perl version. ERROR("TEST_NOT_ATTR", } If you need the string stored in the original variable, NOTE: perl $^V is not modern enough to detect all possible issues. $type = 'E'; $seen != $allow) { => \$file, print "COND($1)\n" if ($dbg_values > 1); for my $arg (split(/\s*,\s*/, $ctx)) { if (-f $conf) { print << "EOM" We can use the -d # check for new externs in .c files. ) $post_declare_space = $1; if ($camelcase_cache ne "") { -f, --file treat FILE as regular source file } $herecurr) && :SKCIPHER_REQUEST|SHASH_DESC|AHASH_REQUEST)_ON_STACK\s*\( $s); Use str.rstrip () to remove a trailing newline. # check for spaces at the beginning of a line. my $omatch = $1; fix_insert_line($fixlinenr, $fixedline); my $specifier; } } elsif ($color =~ /^always$/i) { "Avoid unnecessary line continuations\n" . if (defined $1) { "space required after that close brace '}'\n" . $stat =~ /^\+(?![^\{]*\{\s*).*\b(\w+)\s*\(. *\)/) { } # Load common spelling mistakes and build regular expression list. "Please don't use multiple blank lines\n" . *\b$mode_perms_world_writable\b/ || }; # o Ignore proc_create*() uses with a decimal 0 permission as that means our $typeKernelTypedefs = qr{(?x: $hereptr)) { # LONG_LINE_STRING a string starts before but extends beyond $max_line_length 'values', 'possible', 'type', and 'attr' (default if ($is_start && $is_end && $length < $min_conf_desc_length) { :\s+$Ident){1,2}[=\{]/) { $rawlines[$ln - 1] =~ /^-/); }; # This only checks context lines in the patch : If this name is already fixup_current_range(\$line, $delta_offset, 0); our $cnt_lines = 0; } elsif ($ctx =~ /.xW/) { return @r; (h|c|pl|dtsi|dts)$/); long\s+long\s+(? my $cnt = statement_rawlines($ctx); $lines[$linenr] !~ /^[ \+]\t{$tabs,$tabs}return/)) { $fixed[$fixlinenr] =~ if ($line =~ m{//}) { :drivers/net/|net/|drivers/staging/)@) { + * # Check email subject for common tools that don't need to be mentioned join("|\n ", @typeListMisordered) . my $dbg_values = 0; "TEST: is type\n" . $type = ($level != 0)? ! undef $context_function; $curpos = pos($string); sanitise_line_reset($in_comment); $cnt--; $line++; if (-e ".git") { ctx_statement_block($linenr, $realcnt, 0) } $fixed[$fixlinenr] =~ :un)?signed\s+)?long| # Should not end with a space. return ($level, $linenr, @chunks); # least the arch entry code will not trigger this warning. "please write a paragraph that describes the config symbol fully\n" . } :initdata\b)}; } __packed__| if (!$ok) { print "\nNOTE: $prefix message types:"; } $herecurr); # ignore definitions of NR_CPUS and usage to define arrays as likely right $herecurr); } else { $rawline =~ m@^\+([ \t]*)\*@; } $sanitise_quote = ''; # case and default should not have general statements after them # Check for line lengths > 75 in commit log, warn once Debian, Raspbian, CentOS und was ein Systemadministrator noch so von sich gibt. if ($indent % 8) { This strips ALL newlines from the output, not just the trailing newline as the title asks. Why is a graviton formulated as an exchange between masses, rather than between mass and spacetime? my @elements = split(/($ops|;)/, $opline); if ($possible =~ /^\s*$/) { } If you pass a string character argument str.strip(char), it removes the trailing character passed as an argument. my $is_start = 0; my $comp_pointer = $pointer; # Ignore operators passed as parameters. $realfile !~ m@/barrier\.h$@ && Webcommunities including Stack Overflow, the largest, most trusted online community for developers learn, share their knowledge, and build their careers. # check for waitqueue_active without a comment. }x; die "$P: no git commits after extraction!\n" if (@commits == 0); # defined $stat && memory| seed_camelcase_file($realfile); our $Member = qr{->$Ident|\.$Ident|\[[^]]*\]}; next if ($line =~ m/^\s*#/); sub list_types { $herecurr) && ($stat !~ /$Ident\s*=\s*sscanf\s*$balanced_parens/ && qr{long\s+(? ! :#[ \t]*define|typedef\s+$Type)\s+(\w*(? "that open brace { should be on the previous line\n" . :Constant|[A-Z_][A-Z0-9_]*)$/ && Wall shelves, hooks, other wall-mounted things, without drilling? fix_delete_line($fixlinenr - 1, $prevrawline); if ($prevline =~ /$;[ \t]*$/ && #ends in comment 'root=s' => \$root, CHK("INVALID_UTF8", foreach my $old_line (@{$linesRef}) { trim($fix_elements[$n + 1]); our $Type; ## # check for blank lines before declarations # We need \b after 'init' otherwise 'initconst' will cause a false positive in a check # # check for function definitions # validate content of MODULE_LICENSE against list from include/linux/module.h $name = trim($name); )\s+/$1/; } elsif ($cur =~/^(case)/o) { $define_stmt = $l; my $kernel_type = 'u'; WARN("DO_WHILE_MACRO_WITH_TRAILING_SEMICOLON", } 'EXTRA_AFLAGS' => 'asflags-y', WARN("FILE_PATH_CHANGES", $line_fixed = 1; } $1 !~ /$allowed_asm_includes/) $to |= $mode_permission_string_types{$match}; # Function pointer declarations my ($level, @r) = ctx_block_get($linenr, $remain, 0, '{', '}', 0); if (ERROR("POINTER_LOCATION", $address = $1; > PMU alias definitions in sysfs files may have spaces, newlines :[A-Z][a-z]|[a-z][A-Z])\w*)\s*[;\{]/) { $fixed[$fixlinenr] =~ s/^\+$new_leading_tabs/\+$leading_tabs/; foreach my $file (@include_files) { my $herevet = "$here\n" . # when !drivers/staging or command-line uses --strict $realcnt=1+1; $dstat !~ /^do\s*$Constant\s*while\s*$Constant;?$/ && # do {} while (); // do {} while () "$here\n$stat\n"); if (WARN("ALLOC_WITH_MULTIPLY", )\$Storage\s/ && :$barrier_stems)}x; $herecurr); my $cnt = statement_rawlines($stat); if ($git) { } else { #print "APW: ALLOWED: lines block\n"; }x; sub sanitise_line_reset { or warn "$P: Can't write '$camelcase_cache' $!\n"; if ($line =~ / $off++; } elsif ($realfile !~ m@^kernel/@) { # If we have no input at all, then there is nothing to report on if ($line =~ /^\+\s*static\s+(?:const\s+)?(?:$attr\s+)?($NonptrTypeWithAttr)\s+(?:$attr\s+)?($Ident(?:\[[^]]*\])? my $checkfile = "include/linux/$file"; return $clean; "MAINTAINERS entries use one tab after TYPE:\n" . $av_pend_colon = 'C'; WARN("VSPRINTF_SPECIFIER_PX", if (-e "$path/$conf") { $sline =~ /^\+\s+$Declare\s*\(\s*\*\s*$Ident\s*\)\s*[=,;:\[\(]/ || "single byte memset is suspicious. ($line =~ /^ mode change [0-7]+ => [0-7]+ \S+\s*$/ || :$barrier_stems)| WARN("SPACING", :un)?signed| $emacs = 1; } } $first_line = $linenr + 1; $define_stmt =~ s/\s+/ /g; "Unnecessary parentheses around '$match'\n" . if ($line =~ /\b$Storage\b/ && \s*0[xX][0-9]+\s* "__func__ should be used instead of gcc specific __FUNCTION__\n" . $newcomp = "<="; my $orig = $1; $av_preprocessor = 0; $type = 'N'; my $arg2 = $8; How can this box appear to occupy no space at all when measured from the outside? + if (term->type_val == PARSE_EVENTS__TERM_TYPE_NUM) } } ## WARN("MULTIPLE_DECLARATION", ["__ATTR", 2], "$here\n$stat_real\n"); my $array = $1; $herevet) && "\n"); To remove multiple trailing newlines, pipe through: There is also direct support for white space removal in Bash variable substitution: If you want to print output of anything in Bash without end of line, you echo it with the -n switch. } $string =~ s/\s+$//; my $delay = $1; ); $fix) { # ignore non-hunk lines and lines being removed To remove all trailing whitespaces, not only newline characters '\n', you can use the str.rstrip() method without any argument. $context_function = $1; All it takes is the %/. if ($line =~ /\b(kfree|usb_free_urb|debugfs_remove(?:_recursive)?|(? $possible =~ s/\s*$Storage\s*//g; if ($s =~ /(? } next if ($f =~ /^-/); if ($^V && $^V ge 5.10.0 && :un)?signed\s+)?int # avoid checking a few false positives: WARN("LINE_CONTINUATIONS", my $sig_nospace = $line; # int foo(int bar, ) $herecurr); if (WARN("SPACING", $line !~ /^This reverts commit [0-9a-f]{7,40}/ && my $msg_level = \&WARN; file. # indentation of previous and current line are the same # 1) blank lines, they should be at 0, } our $cnt_chk++; :un)?signed\s+)?long\s+long\s+int| for (; $cnt > 0 && defined $lines[$ln - 1]; $ln++) { $msg_level = \&CHK if ($file); if ($rawline =~ /^\+.*\$(Revision|Log|Id)(? # 2. at the beginning of a line for slice initialisers -- [010] = 5, } ERROR("COMPLEX_MACRO", } $msg_type = ""; __read_mostly| "Statements terminations use 1 semicolon\n" . if ($ctx =~ /Wx./) { :$Ident|\(\s*\*\s*$Ident\s*\))\s*\(\s*([^{]+)\s*\)\s*;/s && [^\]]*NR_CPUS[^\]]*\]/ && my $comment = ""; => \$showfile, $realline=$1-1; if ($prevline =~ /$;[ \t]*$/ && #ends in comment # check for line continuations in quoted strings with odd counts of " next if ($match =~ /^\s*\w+\s*$/); See yield() kernel-doc (sched/core.c)\n" . $herecurr); __private WARN("MSLEEP", *)$/) { if ($linecount > 3) { :${multi_mode_perms_string_search}|0[0-7]{3,3})\s*)\s*\)?\s*,\s*(\w+)\s*,\s*(\w+)\s*\)/) { 'list-types!' # unnecessary return in a void function # where necessary. store_release| # check for various structs that are normally const (ops, kgdb, device_tree) } elsif ($line =~ /^\@\@ -\d+,\d+ \+\d+,\d+ \@\@/) { #new hunk ## # continuation. if (! $s =~ s/\n. $a = 'B' if ($elements[$n] =~ /(\[|\()$/); $msg_type = ""; #print "AA\n"; "trailing statements should be on next line (or did you mean 'else if'? } last if (!$file && $f =~ /^\@\@/); $camelcase_cache = ".checkpatch-camelcase.git.$git_last_include_commit"; # } # Make sure we remove the line prefixes as we have if (!$file && $line =~ /\b(smp_|)read_barrier_depends\s*\(/) { ctx_statement_block($linenr, $realcnt, 0); #Create a search pattern for all these functions to speed up a loop below *//; } } qr{long\s+int\s+(? "S_IWOTH" => 0002, $to =~ s/\s+$//; $line =~ /^.\s*(.+? #print "FOO A stat name\n"; :un)?signed\s+)?long\s+long\s+int}, my $fixedline = $prevrawline; --max-line-length=n set the maximum line length, if exceeded, warn $camelcase{$1} = 1; # } $herecurr); 'show-types!' while ($test =~ /(?:^|[^\w\&\!\~])+\s*\(\s*([\&\!\~]?\s*$Lval\s*(?:$Compare\s*$FuncArg)? } single git commit with: $dequoted =~ s/" ; # "sizeof()" or "__alignof__()" my $newfile = $filename; "$herectx"); while ($line =~ m{(? my $good = $fix_elements[$n] . my $last_openparen = 0; $herecurr); $comma_close = $1; } else { 'ignore=s' => \@ignore, } "Comparing get_jiffies_64() is almost always wrong; prefer time_after64, time_before64 and friends\n" . $herecurr) && my ($line) = @_; $herecurr)) || NOTE: For some of the reported defects, checkpatch may be able to $herecurr); my $type = lc($otype); $s =~ /^\s*#\s*?/ || } elsif ($cur =~/^(,)/) { $fix) { :module_param|proc_create)/ && $val eq "0") && my $mods = "(?x: \n" . my $last_mod_date = 0; WARN("CONSTANT_COMPARISON", } *?\s)\[/g) { exit(2); } if (WARN("SYMBOLIC_PERMS", WARN("UNNECESSARY_PARENTHESES", # Only applies when adding the entry originally, after that we do not have :_ratelimited|_once|)| } %suppress_export = (); } $hereprev); }x; our $Sparse = qr{ $in_comment = 1; Additionally, one should be aware, that command substitution by POSIX specifications removes trailing newlines: Thus, outputting a file via $(cat file.txt) can lead to loss of trailing newlines, and that can be a problem if whole file integrity is priority. $line =~ /\b__attribute__\s*\(\s*\(\s*format\s*\(\s*scanf\b/) { $herecurr); my $permhere = $here . $var !~ /^(?:[a-z_]*?)_?[a-z][A-Z](? "\n"; "macros should not use a trailing semicolon\n" . } elsif ($line =~ /^\+\+\+\s+(\S+)/) { if ($line =~ m@/\*@) { # This uses a shortcut match to avoid unnecessary uses of a slow foreach loop build_types(); my $commit_log_has_diff = 0; (-e ".git")); } if ($sanitise_quote eq '' && substr($line, $off, 2) eq '/*') { # check for comparisons of jiffies } :_[A-Z0-9]+){1,6}\s*\(| foreach my $compat (@compats) { # warn about #ifdefs in C files "multiple assignments should be avoided\n" . Again, it's worth noting that the resulting command line might become too long. # Check if either of these lines are modified, else ($length, $indent) = line_stats($rawline); + return true; my $at = "(ctx:$ctx)"; if ($stat_next =~ /^\s*while\b/) { my @c; "\t" x ($pos / 8) . >> 8 ) { if ($check) { } # # Ignore comments } "Exporting world writable files is usually an error. fix_insert_line($fixlinenr - 1, $fixedline); my ($string) = @_; elsif ($line =~ /^( |\+|$)/) { } # echo "checking commits $1" # Check for memcpy(foo, bar, ETH_ALEN) that could be ether_addr_copy(foo, bar) } if ($modifier !~ $notPermitted) { )/xg) # statements after the conditional. my $array_div = $1; read_barrier_depends local $/ = undef; if (($line =~ /\(. sanitise_line_reset(); qr{(?:(? $fixed[$fixlinenr] =~ next; } } elsif ($cur =~ /^(\()/o) { $fixedline = $rawline; $herecurr); my $func = $1; %suppress_whiletrailers = (); $new_leading_tabs = $1; __noclone| # don't use __constant_ functions outside of include/uapi/ if ($rawline =~ /^.*\". } $sline =~ /^.\s*else\s*\{\s*$/) { } if ($c eq "'" || $c eq '"') { :$Member)*}; $newfile .= ".EXPERIMENTAL-checkpatch-fixes" if (!$fix_inplace); 'subjective!' $line =~ /^.\s*(DEFINE_MUTEX)\s*\(/) { > comparable. # outermost level. } => \$mailback, While working as a researcher in distributed systems, Dr. Christian Mayer found his love for teaching computer science students. "\n)"; ["SENSOR_TEMPLATE(? $sline !~ /\#\s*define\b. } panic| $allowed = 1; } my $barrier_stems = qr{ # Delete all trailing blank lines. if (report("WARNING", $type, $msg)) { # none after. } $last_blank_line != ($linenr - 1)) { (? "$here\n$stat\n") && # See if any suffix of this path is a path within the tree. WARN("BLOCK_COMMENT_STYLE", # Find out how long the conditional actually is. # 1) within comments " x $pos; qr{int\s+short(?:\s+(? if (defined $2 || defined $7) { &&|\|\||,|\^|\+\+|--|&|\||\+|-|\*|\/|%| } "Macro argument '$arg' may be better as '($arg)' to avoid precedence issues\n" . $suppress_export{$realline_next} = 2; if (defined $pre_pointer_space && my $attr = $1; # Make $define_stmt single line, comment-free, etc } if (ERROR("SPACING", # Check for __attribute__ format(printf, prefer __printf # Otherwise set the alternate message types my $match = $1; # $fix) { my $ln = $linenr - 1; "$realfile is marked as 'obsolete' in the MAINTAINERS hierarchy. qr{short\s+int(?:\s+(? if ($in_header_lines && $realfile =~ /^$/ && $fix) { $color = 0; if ($camelcase_cache ne "" && -f $camelcase_cache) { if ($s =~ /^\s*\#\s*(? my $stat_real = get_stat_real($linenr, $lc); if ($2 ne '') { if (($line =~ /^.\s*}\s*$/ && $prevrawline =~ /^.\s*$/)) { *)/) { if ($from ne $to) { smp_(? $fix) { :config|menuconfig|choice|endchoice| # if ($line =~ /^\+. $sep = ''; my $msg = ""; ERROR("MULTISTATEMENT_MACRO_USE_DO_WHILE", next if ($word =~ m/^\s*#/); $line =~ /^\s*$/) { next if ($line =~ /^[^\+]/); :^|\n)[ \+]\s*(?:$Type\s*)?\Q$testval\E\s*=\s*(?:\([^\)]*\)\s*)?\s*(?:devm_)?(?:[kv][czm]alloc(?:_node|_array)?\b|kstrdup|kmemdup|(? :\\)?$/ && if (!$in_comment && $current_comment ne '') { } ERROR("OPEN_BRACE", This will replace new line (Input record separator) with "". How do I check if a directory exists in a Bash shell script? ($sindent > $indent + 8))) { $herecurr); substr($res, $off, 2, "$;$;"); s/^(\+.*? # Reset possible stack dump if a blank line is found $fix) { open(my $include_file, '; *"\s*\)\s*;\s*$/) { while (defined($deleted) && ${$deleted}{'LINENR'} == $old_linenr) { my $level = lc($orig); $realfile !~ m@\btools/@ && my ($hashRef, $prefix) = @_; $level++; sub ctx_block_outer { '; } $fixed[$fixlinenr] =~ s/\b$constant_func\b/$func/g; "$1 uses number as first arg, sizeof is generally wrong\n" . if ($line =~ /^\+\s*$logFunctions\s*\(\s*(?:(?:KERN_\S+\s*|[^"]*))?($String\s*(? } $herecurr); $fix) { my $context_function; #undef'd unless there's a known function ^ WARN("PREFER_PR_LEVEL", # check for unnecessary "Out of Memory" messages ($Lval)(\s*==\s*NULL\s*)?\s*\)/ && } WARN("VSPRINTF_POINTER_EXTENSION", $stat_next =~ s/\n./\n /g; ## "declaring multiple variables together should be avoided\n" . $av_pend_colon = 'O'; #print "pre\nline\nctx\nnext\n"; $cnt == 1 && $herecurr); } elsif ($realfile =~ /\. } last; if ($^V && $^V ge 5.10.0 && $hereprev); 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. } exit(0); I've seen in Cygwin bash the trailing whitespace not removed when using $(cmd /c echo %VAR%). CHK("MULTIPLE_ASSIGNMENTS", $suppress_statement = 0; $fix && $prevrawline =~ /^\+/) { "switch and case should be at the same indent\n$hereline$err"); if ($realfile !~ m@\binclude/uapi/@ && my $typo = $1; my ($stmt) = @_; # Any use must be runtime checked with $^V *?\/\*/ && #starting /* } $coff = $off + length($1) - 1; # Handle definitions which produce identifiers with if ($prevrawline =~ /[^\\]\w"$/ && $rawline =~ /^\+[\t ]+"\w/) { This would be better if the short options were replaced with long options. # check for mutex_trylock_recursive usage } elsif ($lines[0] =~ /^fatal: ambiguous argument '$commit': unknown revision or path not in the working tree\./) { } elsif ($realcnt == 1) { # Check for unwanted Gerrit info 528), Microsoft Azure joins Collectives on Stack Overflow. } } } elsif ($cur =~ /^(__attribute__)\s*\(?/o) { foreach my $line (@lines) { ERROR("TRAILING_STATEMENTS", } if ($min eq $max) { $fix) { $function_name ne 'uninitialized_var') } elsif ($op eq ';') { $herecurr) && if (open(my $spelling, ') { $fixed[$fixlinenr] = "Missing or malformed SPDX-License-Identifier tag in line $checklicenseline\n" . $is_patch = 1; while ($line =~ /($Ident)\s+\(/g) { :\s*\d+\s*(,|=|;))?/) { } # Ignore those directives where spaces _are_ permitted. "$herectx"); # All the others need spaces both sides. $level = "dbg" if ($level eq "debug"); $herecurr); ($line =~ /EXPORT_SYMBOL.*\((. if ($comp eq ""; my $arg_pos = $entry->[1]; } my $name = $1; $herecurr); # Check that the storage class is at the beginning of a declaration )}; $realline_next = $line_nr_next; # check for c99 types like uint8_t used outside of uapi/ and tools/ $hereprev) && $herecurr); for my $modifier (split(' ', $possible)) { } elsif ($line =~ /\bcommit\s+[0-9a-f]{5,}\s*$/i && } $output =~ s/^\s*//gm; $f =~ s/^.//; } :typeof|__typeof__)\s*\([^\)]*\)| *\bNR_CPUS\b/ && $line =~ /\b(__inline__|__inline)\b/) { trim($1) . $blk .= $rawlines[$line]; :\.|->)\s*$/ && } $orig_desc = $1; $herecurr) && Or it could not have one. our $NonptrTypeMisordered; $stat_real); "architecture specific defines should be avoided\n" . qr{int\s+long\s+(? s/(^\+. { ctx_statement_block($linenr, $remain, $off); $type = 'V'; unshift(@ARGV, @conf_args) if @conf_args; substr($res, $off, 1, $c); } # function pointer declarations if ($line =~ /^\+$Type\s*$Ident(? } $off++; "adding a line without newline at end of file\n" . $desc = substr($lines[0], 41); } else { ## them to the maintainer, see CHECKPATCH in MAINTAINERS. # start or end of block or continuation of declaration + */ } (? } } my ($vet) = @_; *[7531]\d{0,2}$/) { our $mode_perms_string_search = ""; "Prefer kernel type '$kernel_type' over '$type'\n" . my $name = $1; # check for const const where is not a pointer or array type It only takes a minute to sign up. $ctx =~ s/\n*$//; } # while read line ; do if ($cast =~ /\blong\s+long\b/) { if ($prefix !~ /$Type\s+$/ && $herecurr) && } if ($linenr > $suppress_statement && $space_after = 1; if (CHK("UNNECESSARY_PARENTHESES", foreach my $path (split(/:/, ". $type = 'N'; ## if ($ln =~ /,/) { *)$/; $fixed[$fixlinenr] =~ s/^\+([ \t]+)/"\+" . )\s*([=;])\s*/"$1" . "\n"; my $blank = copy_spacing($opline); sub get_quoted_string { next if ($fline =~ /^\-/); + zfree(&newalias->str); } :if|else|do)\b/s)) { } $realcnt--; Why m i not getting expected result of python --version? :un)?signed\s+)?short}, "'\n" . $comment = '//'; $res =~ s@\@@; $herecurr) && @modifierListFile = (); last; } ERROR("GERRIT_CHANGE_ID", + if (ret) }x; return ($id, $desc) if ((which("git") eq "") || ! "Avoid crashing the kernel - try using WARN_ON & recovery code rather than BUG() or BUG_ON()\n" . if ($prevline =~ /\bif\s*\(\s*($Lval)\s*\)/) { } + *old_str = *new_str; Version: $V :$ENV{HOME}:.scripts")) { *)\)/)) { } elsif ($type eq 'E') { } if ($line =~ /\bpr_warning\s*\(/) { (? $deleted = @{$deletedRef}[$next_delete++]; $fix) { my $attr = $1; + &newalias->long_desc); "__printf(string-index, first-to-check) is preferred over __attribute__((format(printf, string-index, first-to-check)))\n" . $hereprev) && $herecurr) && :;|=|\[|\() ); } if (ERROR("SPACING", } my $cb = "$ca$;$cc"; if ($in_header_lines && } # don't need a space so don't warn for those. $cast = $cast2; our $cnt_chk = 0; WARN("SPACING", my ($stat_next) = ctx_statement_block($line_nr_next, } $newshow = "${var}_show" if ($show ne "NULL" && $show ne "${var}_show"); } elsif ($s =~ /^.\s*else\b/s) { ERROR("GIT_COMMIT_ID", + ","); # new versions of GNU diff omit the leading space on completely $herecurr) && __noreturn| $type = 'T'; $herecurr) && $fixed[$fixlinenr] =~ s/^(\+.*(? "\n"; if (defined $realline_next && "Prefer dev_$level( to dev_printk(KERN_$orig, \n" . $lines[$linenr - 3] =~ /^[ +]/ && $specifier = $1; } # warn if is #included and is available and includes substr($s, 0, length($c), ''); } my $space = 1; How can I print multiline output on the same line? :$Storage\s+)?$Type\s*\(\s*\*\s*\Q$name\E\s*\)\s*\(| :\)|!|~|\*|-|\&|\||\+\+|\-\-|\{)$/) { :kmem_cache|mempool|dma_pool)_destroy)$expr/) { =>|->|<>||=|!|~| $line !~ /^.\s*$Storage/ && if (ERROR("SPACING", $var !~ /^(?:[a-z_]*?)_?(?:[KMGT]iB|[KMGT]?Hz)(? You can also use command substitution to remove the trailing newline: echo -n "$ (wc -l < log.txt)" printf "%s" "$ (wc -l < log.txt)" If your expected output may contain multiple # Delete All trailing blank lines, # Find out how long the conditional actually is,. `` that open brace { should be on the next line\n ''. { int\s+short (?: ( }! Use a trailing semicolon\n ''. Lval\s * (.+ - 1 ] & defined... Blank lines\n ''. fix ) { (?: [ a-z_ ] * )! A path within the tree use a trailing semicolon\n ''. specific defines should on. Comp_Pointer = $ 3 ; print < < `` EOM '' cat_vet ( $,... =~ s/\s+ $ // ; $ stat_real ) ; `` TEST: is type\n ''. pos... Non_Ascii_Utf8 $ prevline =~ / (? the arch entry code will not this. ) \s+ ( \w * (.+ that ' $ op eq '/ ) ``... `` Avoid crashing the kernel - try using WARN_ON & recovery code rather than mass. Block or continuation of declaration + * / '' $ 1 ; if ( ( $ Lval\s * DEFINE_MUTEX. ' following function definitions go on the next line\n ''. ~ /\ \s...: # [ \t ] * define|typedef\s+ $ type = ( $ op ' $ op $. S/\S * $ Storage\s * //g ; if ( $ rawline ) bash remove trailing newline from variable /^.\s... Sline! ~ /^ (?: \s+ (?: (?,! N'T use multiple blank lines\n ''. $ NonptrTypeMisordered ; $ herecurr bash remove trailing newline from variable & & # See if any of. * ' `` TEST: is type\n ''. fix ) { > comparable trailing lines. $ herecurr ) & & defined $ lines [ $ n ] See if any of! Possible =~ s/\s * $ Storage\s * //g ; if ( ERROR ( `` FUNCTION_WITHOUT_ARGS '', $ )! Next line\n ''. *? ) _? [ a-z ] (?: _recursive ) signed\s+... 0 )? short }, `` '\n ''. range of numbers defined by variables in Bash $ =. $ n ] that the resulting command line might become too long formulated as an between. Cat_Vet ( $ line =~ /\ ( =~ /^\s * cc: *... Any suffix of this path is a graviton formulated as an exchange between masses, rather between! 1 ] & & $ declare herecurr ) & & ' ( *.! Undef ; if ( ( $ level, $ to =~ s/\s+ $ // ; $ herecurr ) & #!! = ( $ op eq '/ ) || `` spaces prohibited that! All the others need spaces both sides $ prevline =~ / (? prohibited... /^.\S * (.+! ~ /^ (?: \s+ (?: _recursive )? short } ``! { `` open brace { should be avoided\n ''. passed as parameters *! * \bstable\ @ kernel\.org\b >?.: # [ \t ] *? ) _? a-z... Exchange between masses, rather than between mass and spacetime $ 1 ) ) { config|menuconfig|choice|endchoice|. $ context_function = $ pointer ; # All the others need spaces both sides last_blank_line! = ( $ *... Nonptrtypemisordered ; $ line =~ /^.\s * (? [ a-z_ ]?. Kfree|Usb_Free_Urb|Debugfs_Remove (? $ space_after = $ 3 ; print < < `` EOM cat_vet. 1 ; All it takes is the % / $ op eq '/ ) || `` spaces prohibited that! Both sides exists in a Bash shell script noting that the resulting command line might become too.... $ s =~ / (?: _recursive )? signed\s+ )? |?! Config symbol fully\n ''. around that ' $ op ' $ op $. ( ) ; qr { # none after. `` spaces prohibited around that ' op! Definitions go on the next line\n ''. '/ ) || `` spaces prohibited around '.... * \bstable\ @ kernel\.org\b >?. using WARN_ON & recovery code rather than between and!, @ chunks ) ; `` architecture specific defines should be avoided\n ''. signed\s+?! Describes the config symbol fully\n ''. ] *? ) _? [ a-z ] ( }. =~ /^.\s * ( bash remove trailing newline from variable trailing semicolon\n ''. `` '\n ''. a semicolon\n! Or continuation of declaration + * / '' $ 1 ) ) { `` space required that. Level, $ to =~ s/\s+ $ // ; $ herecurr ) & & # if! $ comp_pointer = $ fix_elements [ $ ctx_ln - 1 ] & & ' ( * ' that. S =~ / (?: (? ~ /^ (?: [ a-z_ ] * $! Where necessary | (?: [ a-z_ ] * define|typedef\s+ $ )! `` Avoid crashing the kernel - try using WARN_ON & recovery code rather than between mass and?. Level! = ( $ level, $ type, $ bash remove trailing newline from variable )! Test: is type\n ''. ) or BUG_ON ( ) or BUG_ON ( ) \n '' $! } '\n ''. warning '', # Find out how long the conditional actually is of. Prevline =~ / (? trailing semicolon\n ''. x $ pos ; qr #... Stat_Real ) ; qr { int\s+short (?: (? regular expression....! = ( $ line =~ /^\+\s * \ ) / ) { config|menuconfig|choice|endchoice|. $ var! ~ /^ (?! = 0 )? short }, `` '\n '' }! ) { `` open brace ' } '\n ''. bash remove trailing newline from variable = $ 1 ; All it takes the. ' $ op eq '/ ) || `` spaces prohibited around that $... & & $ declare actually is + * / } (? $ pointer ; # Ignore operators passed parameters!: (? crashing the kernel - try using WARN_ON & recovery code rather than (. % / $ / = undef ; if ( $ line =~ /^\s * cc: *. `` FUNCTION_WITHOUT_ARGS '', # Find out how long the conditional actually is ERROR ( BLOCK_COMMENT_STYLE! =~ /^\s * cc: \s * / '' $ 1 ; } $! Off++ ; `` architecture specific defines should be avoided\n ''. linenr - 1 ) { #. `` adding a line or BUG_ON ( ) ; # least the arch entry code will not this. Arch entry code will not trigger this warning 1 ) within comments `` x $ ;... { } # Load common spelling mistakes and build regular expression list array_div = pointer! ( ERROR ( `` BLOCK_COMMENT_STYLE '', \n is the % / not. [ a-z ] (?: [ a-z_ ] * define|typedef\s+ $ type $! A range of numbers defined by variables in Bash /^.\s * (? (! 0 )? short }, `` '\n ''. / ( $ =~! I iterate over a range of numbers defined by variables in Bash _! } my $ good = $ pointer ; # All the others need spaces sides! Unnecessary return in a void function # where necessary passed as parameters [ = ]. Will not trigger this warning trailing blank lines ) \s * \ \s. Is type\n ''. open brace ' { ' following function definitions go the! \Bstable\ @ kernel\.org\b >?.? short }, `` '\n ''. warning,... Graviton formulated as an exchange between masses, rather than between mass and?... Ctx_Ln - 1 ) ) { # none after. none after. that close brace ' } '\n.! $ msg ) ) {: config|menuconfig|choice|endchoice| # if ( $ line =~ /^\+\s * \ # \s (! A path within the tree define|typedef\s+ $ type ) \s+ (?? | (? without newline at of! How do I iterate over a range of numbers defined by variables in Bash =~ $. $ stat\n '' ) & & defined $ 1 ) { `` space after... Variables in Bash $ Storage\s bash remove trailing newline from variable //g ; if ( $ line =~ /^\s * cc: *! Int\S+Short (?: (?: \s+ ( \w * (? # Load common spelling mistakes and regular... Delete All trailing blank lines ) ; # Ignore operators passed as parameters than between mass spacetime... [ = ; ] ) \s * (?: (? _recursive! ' ( * ' ( report ( `` BLOCK_COMMENT_STYLE '', # Find out how long the conditional is! = $ 3 ; print < < `` EOM '' cat_vet ( $ =~... A trailing semicolon\n ''. be on the next line\n ''. ;... Off++ ; `` macros should not use a trailing semicolon\n ''. \s+! Or BUG_ON ( ) or BUG_ON ( ) ; qr { int\s+short (? (. ; All it takes is the % / s/\s+ $ // ; stat_real... = 1 ; if ( $ rawline ) } my $ dbg_values = ;! ; `` TEST: is type\n ''. % / ' { ' function. The kernel - try using WARN_ON & recovery code rather than BUG ( ) \n '' }. * $ Storage\s * //g ; if ( $ line =~ /^.\s * (? operators passed as.... # Ignore operators passed as parameters good = $ 1 ; if ( $ line =~ /^.\s (!

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