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Commit b38a0ad8 authored by Steve Wise's avatar Steve Wise Committed by Roland Dreier
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RDMA/cxgb4: Set arp error handler for PASS_ACCEPT_RPL messages 



accept_cr() failed to set the arp error handler on a reused skb.  This
results in a kernel crash if the arp does indeed time out.

Signed-off-by: default avatarSteve Wise <swise@opengridcomputing.com>
Signed-off-by: default avatarVipul Pandya <vipul@chelsio.com>
Signed-off-by: default avatarRoland Dreier <roland@purestorage.com>
parent 27ca34f5

drivers/infiniband/hw/cxgb4/cm.c

+2 −0
Original line number Original line Diff line number Diff line
@@ -332,6 +332,7 @@ static struct sk_buff *get_skb(struct sk_buff *skb, int len, gfp_t gfp) 
	} else {

	} else {

		skb = alloc_skb(len, gfp);

		skb = alloc_skb(len, gfp);

	}

	}

	t4_set_arp_err_handler(skb, NULL, NULL);

	return skb;

	return skb;

}

}
@@ -2025,6 +2026,7 @@ static void accept_cr(struct c4iw_ep *ep, struct sk_buff *skb, 
	rpl->opt0 = cpu_to_be64(opt0);

	rpl->opt0 = cpu_to_be64(opt0);

	rpl->opt2 = cpu_to_be32(opt2);

	rpl->opt2 = cpu_to_be32(opt2);

	set_wr_txq(skb, CPL_PRIORITY_SETUP, ep->ctrlq_idx);

	set_wr_txq(skb, CPL_PRIORITY_SETUP, ep->ctrlq_idx);

	t4_set_arp_err_handler(skb, NULL, arp_failure_discard);

	c4iw_l2t_send(&ep->com.dev->rdev, skb, ep->l2t);

	c4iw_l2t_send(&ep->com.dev->rdev, skb, ep->l2t);





	return;

	return;