checkpatch: improve "no space after cast" test
Some false positives exist on this test.
For instance:
*va_arg(args, signed char *) = val.s;
or
memset(foo, 0, sizeof(struct bar *) * baz));
Ignore lines that have an arithmetic operator or assignment
after what appears to be a cast to a pointer "(foo *)".
Add $Arithmetic convenience variable.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index c2d223c..ab39ceb3 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -241,10 +241,11 @@
our $Constant = qr{$Float|$Binary|$Hex|$Int};
our $Assignment = qr{\*\=|/=|%=|\+=|-=|<<=|>>=|&=|\^=|\|=|=};
our $Compare = qr{<=|>=|==|!=|<|>};
+our $Arithmetic = qr{\+|-|\*|\/|%};
our $Operators = qr{
<=|>=|==|!=|
=>|->|<<|>>|<|>|!|~|
- &&|\|\||,|\^|\+\+|--|&|\||\+|-|\*|\/|%
+ &&|\|\||,|\^|\+\+|--|&|\||$Arithmetic
}x;
our $NonptrType;
@@ -1885,7 +1886,7 @@
}
}
- if ($line =~ /^\+.*\*[ \t]*\)[ \t]+/) {
+ if ($line =~ /^\+.*\*[ \t]*\)[ \t]+(?!$Assignment|$Arithmetic)/) {
CHK("SPACING",
"No space is necessary after a cast\n" . $hereprev);
}