[ofa-general] [PATCH 2/4] RDMA/nes: Check for seq# wrap around
Faisal Latif
faisal.latif at intel.com
Wed Apr 22 12:05:14 PDT 2009
Check_seq() is not checking if the seq# have wrapped.
Signed-off-by: Faisal Latif <faisal.latif at intel.com>
---
drivers/infiniband/hw/nes/nes_cm.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c
index aa3c631..851d62d 100644
--- a/drivers/infiniband/hw/nes/nes_cm.c
+++ b/drivers/infiniband/hw/nes/nes_cm.c
@@ -56,6 +56,7 @@
#include <net/neighbour.h>
#include <net/route.h>
#include <net/ip_fib.h>
+#include <net/tcp.h>
#include "nes.h"
@@ -1518,7 +1519,7 @@ static int check_seq(struct nes_cm_node *cm_node, struct tcphdr *tcph,
rcv_wnd = cm_node->tcp_cntxt.rcv_wnd;
if (ack_seq != loc_seq_num)
err = 1;
- else if ((seq + rcv_wnd) < rcv_nxt)
+ else if (!between(seq, rcv_nxt, (rcv_nxt+rcv_wnd)))
err = 1;
if (err) {
nes_debug(NES_DBG_CM, "%s[%u] create abort for cm_node=%p "
--
1.5.3.3
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