mwifiex: update config_bands during infra association

commit d7b9c5204e9c6810a20d509ee47bc70419096e59 upstream.

Currently "adapter->config_bands" is updated during infra
association only if channel is provided by user in "iw connect"
command. config_bands is used while preparing association
request to calculate supported rates by intersecting our rates
with the rates advertised by AP.

There is corner case in which we include zero rates in
supported rates TLV based on previous IBSS network history,
which leads to association failure.

This patch fixes the problem by correctly updating config_bands.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c
index 780d3e168297fcf80c62e4345ac6d29c22007b73..f7e91f2e08914a1a2af387b238e8220d1eb16aa9 100644 (file)
--- a/drivers/net/wireless/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/mwifiex/cfg80211.c
@@ -1462,7 +1462,7 @@ mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid,
        struct cfg80211_ssid req_ssid;
        int ret, auth_type = 0;
        struct cfg80211_bss *bss = NULL;
-       u8 is_scanning_required = 0, config_bands = 0;
+       u8 is_scanning_required = 0;
 
        memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
 
@@ -1481,19 +1481,6 @@ mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid,
        /* disconnect before try to associate */
        mwifiex_deauthenticate(priv, NULL);
 
-       if (channel) {
-               if (mode == NL80211_IFTYPE_STATION) {
-                       if (channel->band == IEEE80211_BAND_2GHZ)
-                               config_bands = BAND_B | BAND_G | BAND_GN;
-                       else
-                               config_bands = BAND_A | BAND_AN;
-
-                       if (!((config_bands | priv->adapter->fw_bands) &
-                             ~priv->adapter->fw_bands))
-                               priv->adapter->config_bands = config_bands;
-               }
-       }
-
        /* As this is new association, clear locally stored
         * keys and security related flags */
        priv->sec_info.wpa_enabled = false;

diff --git a/drivers/net/wireless/mwifiex/sta_ioctl.c b/drivers/net/wireless/mwifiex/sta_ioctl.c
index 786bc1132d5e6c7545d5c8bd745cba9308f4d68d..f3211d8452a7097e67f0bc82cd46c8403544cdc6 100644 (file)
--- a/drivers/net/wireless/mwifiex/sta_ioctl.c
+++ b/drivers/net/wireless/mwifiex/sta_ioctl.c
@@ -265,6 +265,20 @@ int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss,
                if (ret)
                        goto done;
 
+               if (bss_desc) {
+                       u8 config_bands = 0;
+
+                       if (mwifiex_band_to_radio_type((u8) bss_desc->bss_band)
+                           == HostCmd_SCAN_RADIO_TYPE_BG)
+                               config_bands = BAND_B | BAND_G | BAND_GN;
+                       else
+                               config_bands = BAND_A | BAND_AN;
+
+                       if (!((config_bands | adapter->fw_bands) &
+                             ~adapter->fw_bands))
+                               adapter->config_bands = config_bands;
+               }
+
                ret = mwifiex_check_network_compatibility(priv, bss_desc);
                if (ret)
                        goto done;