mfd: max8925: Remove array in regulator platform data

[cascardo/linux.git] / scripts / checkpatch.pl

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index e5bd60f..913d6bd 100755 (executable)
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1600,13 +1600,17 @@ sub process {
 
 # Check signature styles
                if (!$in_header_lines &&
-                   $line =~ /^(\s*)($signature_tags)(\s*)(.*)/) {
+                   $line =~ /^(\s*)([a-z0-9_-]+by:|$signature_tags)(\s*)(.*)/i) {
                        my $space_before = $1;
                        my $sign_off = $2;
                        my $space_after = $3;
                        my $email = $4;
                        my $ucfirst_sign_off = ucfirst(lc($sign_off));
 
+                       if ($sign_off !~ /$signature_tags/) {
+                               WARN("BAD_SIGN_OFF",
+                                    "Non-standard signature: $sign_off\n" . $herecurr);
+                       }
                        if (defined $space_before && $space_before ne "") {
                                WARN("BAD_SIGN_OFF",
                                     "Do not use whitespace before $ucfirst_sign_off\n" . $herecurr);
@@ -1848,8 +1852,8 @@ sub process {
 
                        my $pos = pos_last_openparen($rest);
                        if ($pos >= 0) {
-                               $line =~ /^\+([ \t]*)/;
-                               my $newindent = $1;
+                               $line =~ /^(\+| )([ \t]*)/;
+                               my $newindent = $2;
 
                                my $goodtabindent = $oldindent .
                                        "\t" x ($pos / 8) .
@@ -2984,6 +2988,45 @@ sub process {
                        }
                }
 
+# 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 &&
+                   $realfile !~ m@/vmlinux.lds.h$@ &&
+                   $line =~ /^.\s*\#\s*define\s+$Ident(\()?/) {
+                       my $ln = $linenr;
+                       my $cnt = $realcnt;
+                       my ($off, $dstat, $dcond, $rest);
+                       my $ctx = '';
+                       ($dstat, $dcond, $ln, $cnt, $off) =
+                               ctx_statement_block($linenr, $realcnt, 0);
+                       $ctx = $dstat;
+
+                       $dstat =~ s/\\\n.//g;
+
+                       if ($dstat =~ /^\+\s*#\s*define\s+$Ident\s*${balanced_parens}\s*do\s*{(.*)\s*}\s*while\s*\(\s*0\s*\)\s*([;\s]*)\s*$/) {
+                               my $stmts = $2;
+                               my $semis = $3;
+
+                               $ctx =~ s/\n*$//;
+                               my $cnt = statement_rawlines($ctx);
+                               my $herectx = $here . "\n";
+
+                               for (my $n = 0; $n < $cnt; $n++) {
+                                       $herectx .= raw_line($linenr, $n) . "\n";
+                               }
+
+                               if (($stmts =~ tr/;/;/) == 1) {
+                                       WARN("SINGLE_STATEMENT_DO_WHILE_MACRO",
+                                            "Single statement macros should not use a do {} while (0) loop\n" . "$herectx");
+                               }
+                               if (defined $semis && $semis ne "") {
+                                       WARN("DO_WHILE_MACRO_WITH_TRAILING_SEMICOLON",
+                                            "do {} while (0) macros should not be semicolon terminated\n" . "$herectx");
+                               }
+                       }
+               }
+
 # make sure symbols are always wrapped with VMLINUX_SYMBOL() ...
 # all assignments may have only one of the following with an assignment:
 #      .
@@ -3261,6 +3304,12 @@ sub process {
                             "sizeof(& should be avoided\n" . $herecurr);
                }
 
+# check for sizeof without parenthesis
+               if ($line =~ /\bsizeof\s+((?:\*\s*|)$Lval|$Type(?:\s+$Lval|))/) {
+                       WARN("SIZEOF_PARENTHESIS",
+                            "sizeof $1 should be sizeof($1)\n" . $herecurr);
+               }
+
 # check for line continuations in quoted strings with odd counts of "
                if ($rawline =~ /\\$/ && $rawline =~ tr/"/"/ % 2) {
                        WARN("LINE_CONTINUATIONS",
@@ -3309,6 +3358,22 @@ sub process {
                        }
                }
 
+# check usleep_range arguments
+               if ($^V && $^V ge 5.10.0 &&
+                   defined $stat &&
+                   $stat =~ /^\+(?:.*?)\busleep_range\s*\(\s*($FuncArg)\s*,\s*($FuncArg)\s*\)/) {
+                       my $min = $1;
+                       my $max = $7;
+                       if ($min eq $max) {
+                               WARN("USLEEP_RANGE",
+                                    "usleep_range should not use min == max args; see Documentation/timers/timers-howto.txt\n" . "$here\n$stat\n");
+                       } elsif ($min =~ /^\d+$/ && $max =~ /^\d+$/ &&
+                                $min > $max) {
+                               WARN("USLEEP_RANGE",
+                                    "usleep_range args reversed, use min then max; see Documentation/timers/timers-howto.txt\n" . "$here\n$stat\n");
+                       }
+               }
+
 # check for new externs in .c files.
                if ($realfile =~ /\.c$/ && defined $stat &&
                    $stat =~ /^.\s*(?:extern\s+)?$Type\s+($Ident)(\s*)\(/s)