On 16 January 2014 12:04, Eliad Peller <eliad@xxxxxxxxxx> wrote:
> On Wed, Jan 15, 2014 at 2:04 PM, Michal Kazior <michal.kazior@xxxxxxxxx> wrote:
>> This implements a fairly simple multi-interface
>> CSA. It doesn't support multiple channel
>> contexts so it doesn't support multi-channel.
>>
>> Once a CSA is started other CSA requests are
>> denied until the first one is completed. A single
>> CSA may affect multiple interfaces. CSA can happen
>> only if it all target CSA chandefs are compatible
>> and it affects all interfaces are sharing a single
>> channel context exclusively.
>>
>> A new worker is introduced: csa_complete_work
>> which is used to account per-interface countdowns
>> and issue the actual channel switch after last
>> interface completes its CSA.
>>
>> Signed-off-by: Michal Kazior <michal.kazior@xxxxxxxxx>
>> ---
> [...]
>
>>
>> +static int ieee80211_ap_beacon_presp_backup(struct ieee80211_sub_if_data *sdata)
>> +{
>> + struct beacon_data *beacon;
>> + struct probe_resp *probe_resp;
>> +
>> + beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
>> + if (beacon) {
>> + sdata->u.ap.prev_beacon = kmemdup(beacon, sizeof(beacon) +
>> + beacon->head_len +
>> + beacon->tail_len, GFP_KERNEL);
>> + if (!sdata->u.ap.prev_beacon)
>> + return -ENOMEM;
>> + }
>> +
> you must also update the pointers here...
You're right, thanks!
Michał
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