Commit 23f780c9 authored by Joe Perches's avatar Joe Perches Committed by Linus Torvalds

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: default avatarJoe Perches <joe@perches.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 179f8f40
......@@ -241,10 +241,11 @@ our $Float = qr{$Float_hex|$Float_dec|$Float_int};
our $Constant = qr{$Float|$Binary|$Hex|$Int};
our $Assignment = qr{\*\=|/=|%=|\+=|-=|<<=|>>=|&=|\^=|\|=|=};
our $Compare = qr{<=|>=|==|!=|<|>};
our $Arithmetic = qr{\+|-|\*|\/|%};
our $Operators = qr{
<=|>=|==|!=|
=>|->|<<|>>|<|>|!|~|
&&|\|\||,|\^|\+\+|--|&|\||\+|-|\*|\/|%
&&|\|\||,|\^|\+\+|--|&|\||$Arithmetic
}x;
our $NonptrType;
......@@ -1885,7 +1886,7 @@ sub process {
}
}
if ($line =~ /^\+.*\*[ \t]*\)[ \t]+/) {
if ($line =~ /^\+.*\*[ \t]*\)[ \t]+(?!$Assignment|$Arithmetic)/) {
CHK("SPACING",
"No space is necessary after a cast\n" . $hereprev);
}
......
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