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brcm80211: make mgmt_tx in brcmfmac accept a NULL channel

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cfg80211 passes a NULL channel to mgmt_tx if the frame has
to be sent on the one currently in use by the device.
Make the implementation of mgmt_tx correctly handle this
case

Cc: brcm80211-dev-list@broadcom.com
Acked-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Antonio Quartulli 2013-06-11 14:20:01 +02:00 committed by Johannes Berg
parent f7aeb6fb1a
commit c2ff8cad64
1 changed files with 12 additions and 3 deletions
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15
drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
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@ -3917,6 +3917,7 @@ brcmf_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
struct brcmf_fil_af_params_le *af_params;
bool ack;
s32 chan_nr;
u32 freq;
brcmf_dbg(TRACE, "Enter\n");
@ -3929,6 +3930,8 @@ brcmf_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
return -EPERM;
}
vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
if (ieee80211_is_probe_resp(mgmt->frame_control)) {
/* Right now the only reason to get a probe response */
/* is for p2p listen response or for p2p GO from */
@ -3944,7 +3947,6 @@ brcmf_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
ie_offset = DOT11_MGMT_HDR_LEN +
DOT11_BCN_PRB_FIXED_LEN;
ie_len = len - ie_offset;
vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif)
vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
err = brcmf_vif_set_mgmt_ie(vif,
@ -3968,8 +3970,15 @@ brcmf_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
memcpy(&af_params->bssid[0], &mgmt->bssid[0], ETH_ALEN);
/* Add the length exepted for 802.11 header */
action_frame->len = cpu_to_le16(len - DOT11_MGMT_HDR_LEN);
/* Add the channel */
chan_nr = ieee80211_frequency_to_channel(chan->center_freq);
/* Add the channel. Use the one specified as parameter if any or
* the current one (got from the firmware) otherwise
*/
if (chan)
freq = chan->center_freq;
else
brcmf_fil_cmd_int_get(vif->ifp, BRCMF_C_GET_CHANNEL,
&freq);
chan_nr = ieee80211_frequency_to_channel(freq);
af_params->channel = cpu_to_le32(chan_nr);
memcpy(action_frame->data, &buf[DOT11_MGMT_HDR_LEN],