From: Mattias Rönnblom <mattias.ronnblom@ericsson.com>
Date: Mon, 9 Mar 2020 06:51:05 +0000 (+0100)
Subject: event/dsw: remove unnecessary read barrier
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=cea7bc671311e8cf5fbc21dceb15f5f8af8ee36b;p=dpdk.git

event/dsw: remove unnecessary read barrier

Remove unnecessary read barrier (and misleading comment) on control
message dequeue.

Fixes: f6257b22e767 ("event/dsw: add load balancing")
Cc: stable@dpdk.org

Suggested-by: Ola Liljedahl <ola.liljedahl@arm.com>
Signed-off-by: Mattias Rönnblom <mattias.ronnblom@ericsson.com>
---

diff --git a/drivers/event/dsw/dsw_event.c b/drivers/event/dsw/dsw_event.c
index c31a4c492f..94c8efdbcf 100644
--- a/drivers/event/dsw/dsw_event.c
+++ b/drivers/event/dsw/dsw_event.c
@@ -1065,11 +1065,6 @@ dsw_port_ctl_process(struct dsw_evdev *dsw, struct dsw_port *port)
 {
 	struct dsw_ctl_msg msg;
 
-	/* So any table loads happens before the ring dequeue, in the
-	 * case of a 'paus' message.
-	 */
-	rte_smp_rmb();
-
 	if (dsw_port_ctl_dequeue(port, &msg) == 0) {
 		switch (msg.type) {
 		case DSW_CTL_PAUS_REQ: