bnx2x: Change to driver version 1.72.10-0

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

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 061c28e7bcfa201a9cfd6e69dc7d29bb50c98a4b..de639eeeed506b76b54220e7e7f86ed879af02a1 100755 (executable)
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -323,7 +323,7 @@ sub build_types {
                  }x;
        $Type   = qr{
                        $NonptrType
-                       (?:[\s\*]+\s*const|[\s\*]+|(?:\s*\[\s*\])+)?
+                       (?:(?:\s|\*|\[\])+\s*const|(?:\s|\*|\[\])+|(?:\s*\[\s*\])+)?
                        (?:\s+$Inline|\s+$Modifier)*
                  }x;
        $Declare        = qr{(?:$Storage\s+)?$Type};
@@ -1772,6 +1772,21 @@ sub process {
                             "line over 80 characters\n" . $herecurr);
                }
 
+# Check for user-visible strings broken across lines, which breaks the ability
+# to grep for the string.  Limited to strings used as parameters (those
+# following an open parenthesis), which almost completely eliminates false
+# positives, as well as warning only once per parameter rather than once per
+# line of the string.  Make an exception when the previous string ends in a
+# newline (multiple lines in one string constant) or \n\t (common in inline
+# assembly to indent the instruction on the following line).
+               if ($line =~ /^\+\s*"/ &&
+                   $prevline =~ /"\s*$/ &&
+                   $prevline =~ /\(/ &&
+                   $prevrawline !~ /\\n(?:\\t)*"\s*$/) {
+                       WARN("SPLIT_STRING",
+                            "quoted string split across lines\n" . $hereprev);
+               }
+
 # check for spaces before a quoted newline
                if ($rawline =~ /^.*\".*\s\\n/) {
                        WARN("QUOTED_WHITESPACE_BEFORE_NEWLINE",
@@ -1849,6 +1864,17 @@ sub process {
                        }
                }
 
+               if ($line =~ /^\+.*\*[ \t]*\)[ \t]+/) {
+                       CHK("SPACING",
+                           "No space is necessary after a cast\n" . $hereprev);
+               }
+
+               if ($rawline =~ /^\+[ \t]*\/\*[ \t]*$/ &&
+                   $prevrawline =~ /^\+[ \t]*$/) {
+                       CHK("BLOCK_COMMENT_STYLE",
+                           "Don't begin block comments with only a /* line, use /* comment...\n" . $hereprev);
+               }
+
 # check for spaces at the beginning of a line.
 # Exceptions:
 #  1) within comments
@@ -2894,6 +2920,12 @@ sub process {
                        {
                        }
 
+                       # Flatten any obvious string concatentation.
+                       while ($dstat =~ s/("X*")\s*$Ident/$1/ ||
+                              $dstat =~ s/$Ident\s*("X*")/$1/)
+                       {
+                       }
+
                        my $exceptions = qr{
                                $Declare|
                                module_param_named|
@@ -2910,7 +2942,8 @@ sub process {
                        if ($dstat ne '' &&
                            $dstat !~ /^(?:$Ident|-?$Constant),$/ &&                    # 10, // foo(),
                            $dstat !~ /^(?:$Ident|-?$Constant);$/ &&                    # foo();
-                           $dstat !~ /^(?:$Ident|-?$Constant)$/ &&                     # 10 // foo()
+                           $dstat !~ /^[!~-]?(?:$Ident|$Constant)$/ &&         # 10 // foo() // !foo // ~foo // -foo
+                           $dstat !~ /^'X'$/ &&                                        # character constants
                            $dstat !~ /$exceptions/ &&
                            $dstat !~ /^\.$Ident\s*=/ &&                                # .foo =
                            $dstat !~ /^do\s*$Constant\s*while\s*$Constant;?$/ &&       # do {...} while (...); // do {...} while (...)
@@ -2954,7 +2987,8 @@ sub process {
                        #print "chunks<$#chunks> linenr<$linenr> endln<$endln> level<$level>\n";
                        #print "APW: <<$chunks[1][0]>><<$chunks[1][1]>>\n";
                        if ($#chunks > 0 && $level == 0) {
-                               my $allowed = 0;
+                               my @allowed = ();
+                               my $allow = 0;
                                my $seen = 0;
                                my $herectx = $here . "\n";
                                my $ln = $linenr - 1;
@@ -2965,6 +2999,7 @@ sub process {
                                        my ($whitespace) = ($cond =~ /^((?:\s*\n[+-])*\s*)/s);
                                        my $offset = statement_rawlines($whitespace) - 1;
 
+                                       $allowed[$allow] = 0;
                                        #print "COND<$cond> whitespace<$whitespace> offset<$offset>\n";
 
                                        # We have looked at and allowed this specific line.
@@ -2977,23 +3012,34 @@ sub process {
 
                                        $seen++ if ($block =~ /^\s*{/);
 
-                                       #print "cond<$cond> block<$block> allowed<$allowed>\n";
+                                       #print "cond<$cond> block<$block> allowed<$allowed[$allow]>\n";
                                        if (statement_lines($cond) > 1) {
                                                #print "APW: ALLOWED: cond<$cond>\n";
-                                               $allowed = 1;
+                                               $allowed[$allow] = 1;
                                        }
                                        if ($block =~/\b(?:if|for|while)\b/) {
                                                #print "APW: ALLOWED: block<$block>\n";
-                                               $allowed = 1;
+                                               $allowed[$allow] = 1;
                                        }
                                        if (statement_block_size($block) > 1) {
                                                #print "APW: ALLOWED: lines block<$block>\n";
-                                               $allowed = 1;
+                                               $allowed[$allow] = 1;
                                        }
+                                       $allow++;
                                }
-                               if ($seen && !$allowed) {
-                                       WARN("BRACES",
-                                            "braces {} are not necessary for any arm of this statement\n" . $herectx);
+                               if ($seen) {
+                                       my $sum_allowed = 0;
+                                       foreach (@allowed) {
+                                               $sum_allowed += $_;
+                                       }
+                                       if ($sum_allowed == 0) {
+                                               WARN("BRACES",
+                                                    "braces {} are not necessary for any arm of this statement\n" . $herectx);
+                                       } elsif ($sum_allowed != $allow &&
+                                                $seen != $allow) {
+                                               CHK("BRACES",
+                                                   "braces {} should be used on all arms of this statement\n" . $herectx);
+                                       }
                                }
                        }
                }
@@ -3307,22 +3353,30 @@ sub process {
                             "__func__ should be used instead of gcc specific __FUNCTION__\n"  . $herecurr);
                }
 
+# check for use of yield()
+               if ($line =~ /\byield\s*\(\s*\)/) {
+                       WARN("YIELD",
+                            "Using yield() is generally wrong. See yield() kernel-doc (sched/core.c)\n"  . $herecurr);
+               }
+
 # check for semaphores initialized locked
                if ($line =~ /^.\s*sema_init.+,\W?0\W?\)/) {
                        WARN("CONSIDER_COMPLETION",
                             "consider using a completion\n" . $herecurr);
-
                }
+
 # recommend kstrto* over simple_strto* and strict_strto*
                if ($line =~ /\b((simple|strict)_(strto(l|ll|ul|ull)))\s*\(/) {
                        WARN("CONSIDER_KSTRTO",
                             "$1 is obsolete, use k$3 instead\n" . $herecurr);
                }
+
 # check for __initcall(), use device_initcall() explicitly please
                if ($line =~ /^.\s*__initcall\s*\(/) {
                        WARN("USE_DEVICE_INITCALL",
                             "please use device_initcall() instead of __initcall()\n" . $herecurr);
                }
+
 # check for various ops structs, ensure they are const.
                my $struct_ops = qr{acpi_dock_ops|
                                address_space_operations|