checkpatch: improve "no space is necessary after a cast" test

The "no space is necessary after a cast" sizeof exclusion doesn't work
properly.

The test reports a false positive for code like:

	BUILD_BUG_ON(sizeof(struct batadv_bla_claim_dst) != 6);

Make it work, simplify the exclusions, and add some comments.

Signed-off-by: Joe Perches <[email protected]>
Reported-by: Marek Lindner <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

0 files changed, 0 insertions, 0 deletions