From: Victor Goldenshtein <victorg@ti.com>
Date: Mon, 14 May 2012 13:07:38 +0000 (+0300)
Subject: wlcore: wait for roc complete only for the first roc command
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=a4203c6453afcd21b3a6f0be592bf74951e80c72;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

wlcore: wait for roc complete only for the first roc command

In some multi role scenarios the driver might send multi
roc requests without sending a croc first, the fw queues
those requests and starts service the next roc request as
soon as the driver sends a croc for the previous one. So,
if the fw rocs on channel X and driver asks to roc also
on channel Y, the fw will not start service Y (and will
not send roc complete event for this request) until the
driver releases the fw with croc X.

Signed-off-by: Victor Goldenshtein <victorg@ti.com>
Signed-off-by: Igal Chernobelsky <igalc@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
---

diff --git a/drivers/net/wireless/ti/wlcore/cmd.c b/drivers/net/wireless/ti/wlcore/cmd.c
index e8c650dec18c..df8d672b1f06 100644
--- a/drivers/net/wireless/ti/wlcore/cmd.c
+++ b/drivers/net/wireless/ti/wlcore/cmd.c
@@ -1606,19 +1606,25 @@ out:
 int wl12xx_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 role_id)
 {
 	int ret = 0;
+	bool is_first_roc;
 
 	if (WARN_ON(test_bit(role_id, wl->roc_map)))
 		return 0;
 
+	is_first_roc = (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) >=
+			WL12XX_MAX_ROLES);
+
 	ret = wl12xx_cmd_roc(wl, wlvif, role_id);
 	if (ret < 0)
 		goto out;
 
-	ret = wl1271_cmd_wait_for_event(wl,
-					REMAIN_ON_CHANNEL_COMPLETE_EVENT_ID);
-	if (ret < 0) {
-		wl1271_error("cmd roc event completion error");
-		goto out;
+	if (is_first_roc) {
+		ret = wl1271_cmd_wait_for_event(wl,
+					   REMAIN_ON_CHANNEL_COMPLETE_EVENT_ID);
+		if (ret < 0) {
+			wl1271_error("cmd roc event completion error");
+			goto out;
+		}
 	}
 
 	__set_bit(role_id, wl->roc_map);