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Commit c11470f9 authored by Faisal Latif's avatar Faisal Latif Committed by Roland Dreier
Browse files

RDMA/nes: Check for sequence number wrap-around 



check_seq() was not checking if the seq#s have wrapped.  Fix it.

Signed-off-by: default avatarFaisal Latif <faisal.latif@intel.com>
Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
parent 53094c38

drivers/infiniband/hw/nes/nes_cm.c

+2 −1
Original line number Diff line number Diff line
@@ -56,6 +56,7 @@ 
#include <net/neighbour.h>

#include <net/route.h>

#include <net/ip_fib.h>

#include <net/tcp.h>



#include "nes.h"
@@ -1514,7 +1515,7 @@ 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 "