Commit:     b16be51b5e5d75cec71b18ebc75f15a4734c62ad
Parent:     d52de17b8cf36d43a9d6977e7861a9f415541c6b
Author:     Gerrit Renker <[EMAIL PROTECTED]>
AuthorDate: Tue Mar 20 13:03:47 2007 -0300
Committer:  David S. Miller <[EMAIL PROTECTED]>
CommitDate: Wed Apr 25 22:26:45 2007 -0700

    [DCCP]: Fix for follows48
    The follows48 relation identifies whether 48-bit sequence number
    x is the direct successor of y. Currently, it does not handle cases
    of the following type correctly:
        follows48(0x(prefix)10000LL, 0x(prefix)0FFFFLL)
    where prefix is an arbitrary hex sequence of up to 7 digits.
    This is fixed by reusing the new dccp_delta_seqno function.
    Signed-off-by: Gerrit Renker <[EMAIL PROTECTED]>
    Acked-by: Ian McDonald <[EMAIL PROTECTED]>
    Signed-off-by: Arnaldo Carvalho de Melo <[EMAIL PROTECTED]>
    Signed-off-by: David S. Miller <[EMAIL PROTECTED]>
 net/dccp/dccp.h |    4 +---
 1 files changed, 1 insertions(+), 3 deletions(-)

diff --git a/net/dccp/dccp.h b/net/dccp/dccp.h
index 1615986..c66a458 100644
--- a/net/dccp/dccp.h
+++ b/net/dccp/dccp.h
@@ -144,9 +144,7 @@ static inline u64 max48(const u64 seq1, const u64 seq2)
 /* is seq1 next seqno after seq2 */
 static inline int follows48(const u64 seq1, const u64 seq2)
-       int diff = (seq1 & 0xFFFF) - (seq2 & 0xFFFF);
-       return diff==1;
+       return dccp_delta_seqno(seq2, seq1) == 1;
 enum {
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