Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=0aec51c86986f61de26dd04913667af544a8b8eb
Commit: 0aec51c86986f61de26dd04913667af544a8b8eb
Parent: 6b811d43f6cc9eccdfc011a99f8571df2abc46d1
Author: Gerrit Renker <[EMAIL PROTECTED]>
AuthorDate: Tue Mar 20 12:45:59 2007 -0300
Committer: David S. Miller <[EMAIL PROTECTED]>
CommitDate: Wed Apr 25 22:26:43 2007 -0700
[DCCP]: Make dccp_delta_seqno return signed numbers
Problem:
---
net/dccp/dccp.h | 7 +++++--
1 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/net/dccp/dccp.h b/net/dccp/dccp.h
index a2c20a2..afb313f 100644
--- a/net/dccp/dccp.h
+++ b/net/dccp/dccp.h
@@ -113,9 +113,12 @@ static inline void dccp_inc_seqno(u64 *seqno)
*seqno = ADD48(*seqno, 1);
}
-static inline u64 dccp_delta_seqno(u64 seqno1, u64 seqno2)
+/* signed mod-2^48 distance: pos. if seqno1 < seqno2, neg. if seqno1 > seqno2
*/
+static inline s64 dccp_delta_seqno(const u64 seqno1, const u64 seqno2)
{
- return ((seqno2 << 16) - (seqno1 << 16)) >> 16;
+ u64 delta = SUB48(seqno2, seqno1);
+
+ return TO_SIGNED48(delta);
}
/* is seq1 < seq2 ? */
-
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