iwmc3200wifi: handling wifi_if_ntfy responses

When we're calling iwm_send_wifi_if_cmd() with the resp flag set, we're
currently waiting on the mlme queue, waiting for some flags here and there to
show up.
This patch adds a wifi_ntfy bitmap, and when we're sending a wifi_if command
expecting an answers, we wait synchronously for it to show up, on a dedicated
queue. The wifi_ntfy bit is set when we receive the corresponding answer.

Signed-off-by: Samuel Ortiz <samuel.ortiz@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/net/wireless/iwmc3200wifi/iwm.h b/drivers/net/wireless/iwmc3200wifi/iwm.h
index 77c339f8516c..d8d4ae2d91b0 100644
--- a/drivers/net/wireless/iwmc3200wifi/iwm.h
+++ b/drivers/net/wireless/iwmc3200wifi/iwm.h
@@ -278,6 +278,9 @@ struct iwm_priv {
         struct iwm_key keys[IWM_NUM_KEYS];
         struct iwm_key *default_key;
 
+        DECLARE_BITMAP(wifi_ntfy, WIFI_IF_NTFY_MAX);
+        wait_queue_head_t wifi_ntfy_queue;
+
         wait_queue_head_t mlme_queue;
 
         struct iw_statistics wstats;