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checkpatch: dissallow spaces between stars in pointer types

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Disallow spaces within multiple pointer stars (*) in both casts and
definitions.  Both of these would now be reported:

	(char * *)
	char * *foo;

Also now consistently detects and reports the attributes within these
structures making the error report itself clearer.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Andy Whitcroft 2009-01-06 14:41:21 -08:00 committed by Linus Torvalds
parent fae17daed7
commit 65863862ba
1 changed files with 32 additions and 14 deletions
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46
scripts/checkpatch.pl
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@ -191,7 +191,7 @@ 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+)?$Type};
@ -1344,7 +1344,7 @@ sub process {
}
# any (foo ... *) is a pointer cast, and foo is a type
while ($s =~ /\(($Ident)(?:\s+$Sparse)*\s*\*+\s*\)/sg) {
while ($s =~ /\(($Ident)(?:\s+$Sparse)*[\s\*]+\s*\)/sg) {
possible($1, "C:" . $s);
}
@ -1618,21 +1618,39 @@ sub process {
}
# * goes on variable not on type
if ($line =~ m{\($NonptrType(\*+)(?:\s+const)?\)}) {
ERROR("\"(foo$1)\" should be \"(foo $1)\"\n" .
$herecurr);
# (char*[ const])
if ($line =~ m{\($NonptrType(\s*\*[\s\*]*(?:$Modifier\s*)*)\)}) {
my ($from, $to) = ($1, $1);
} elsif ($line =~ m{\($NonptrType\s+(\*+)(?!\s+const)\s+\)}) {
ERROR("\"(foo $1 )\" should be \"(foo $1)\"\n" .
$herecurr);
# Should start with a space.
$to =~ s/^(\S)/ $1/;
# Should not end with a space.
$to =~ s/\s+$//;
# '*'s should not have spaces between.
while ($to =~ s/(.)\s\*/$1\*/) {
}
} elsif ($line =~ m{\b$NonptrType(\*+)(?:\s+(?:$Attribute|$Sparse))?\s+[A-Za-z\d_]+}) {
ERROR("\"foo$1 bar\" should be \"foo $1bar\"\n" .
$herecurr);
#print "from<$from> to<$to>\n";
if ($from ne $to) {
ERROR("\"(foo$from)\" should be \"(foo$to)\"\n" . $herecurr);
}
} elsif ($line =~ m{\b$NonptrType(\s*\*[\s\*]*(?:$Modifier\s*)?)($Ident)}) {
my ($from, $to, $ident) = ($1, $1, $2);
} elsif ($line =~ m{\b$NonptrType\s+(\*+)(?!\s+(?:$Attribute|$Sparse))\s+[A-Za-z\d_]+}) {
ERROR("\"foo $1 bar\" should be \"foo $1bar\"\n" .
$herecurr);
# Should start with a space.
$to =~ s/^(\S)/ $1/;
# Should not end with a space.
$to =~ s/\s+$//;
# '*'s should not have spaces between.
while ($to =~ s/(.)\s\*/$1\*/) {
}
# Modifiers should have spaces.
$to =~ s/(\b$Modifier$)/$1 /;
#print "from<$from> to<$to>\n";
if ($from ne $to) {
ERROR("\"foo${from}bar\" should be \"foo${to}bar\"\n" . $herecurr);
}
}
# # no BUG() or BUG_ON()