From 23f780c90496eb1cc158e862e7035c8468dfa052 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Wed, 3 Jul 2013 15:05:31 -0700
Subject: [PATCH] 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>
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