From: Jan-Bernd Themann <ossthema@de.ibm.com>
Date: Tue, 15 Jun 2010 05:35:16 +0000 (+0000)
Subject: ehea: fix delayed packet processing
X-Git-Tag: 2.1b_release~7640^2~96
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a91fb143de61dce847e319ca79b9937a665ad622;p=platform%2Fkernel%2Fkernel-mfld-blackbay.git

ehea: fix delayed packet processing

In the eHEA poll function an rmb() is required. Without that some packets
on the receive queue are not seen and thus delayed until the next interrupt
is handled for the same receive queue.

Signed-off-by: Jan-Bernd Themann <themann@de.ibm.com>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ehea/ehea_main.c b/drivers/net/ehea/ehea_main.c
index f547894..fd890fa 100644
--- a/drivers/net/ehea/ehea_main.c
+++ b/drivers/net/ehea/ehea_main.c
@@ -867,6 +867,7 @@ static int ehea_poll(struct napi_struct *napi, int budget)
 		ehea_reset_cq_ep(pr->send_cq);
 		ehea_reset_cq_n1(pr->recv_cq);
 		ehea_reset_cq_n1(pr->send_cq);
+		rmb();
 		cqe = ehea_poll_rq1(pr->qp, &wqe_index);
 		cqe_skb = ehea_poll_cq(pr->send_cq);