Re: [Lksctp-developers] [PATCH 8/8] : Use FIELD_SIZEOF

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Alexey Dobriyan wrote:
On Sun, Feb 10, 2008 at 09:16:04PM +0100, Julia Lawall wrote:
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -618,7 +618,7 @@ static inline int param_type2af(__be16 t
 static inline int sctp_sanity_check(void)
 {
 	SCTP_ASSERT(sizeof(struct sctp_ulpevent) <=
-		    sizeof(((struct sk_buff *)0)->cb),
+		    FIELD_SIZEOF(struct sk_buff, cb),
 		    "SCTP: ulpevent does not fit in skb!\n", return 0);
return 1;

Same here. Use BUILD_BUG_ON instead.

Ack. BUILD_BUG_ON is definitely appropriate here, especially considering
that SCTP_ASSERT compiles to nothing with debugging turned off.

-vlad


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