/* Called only as a tasklet (software IRQ) */
static void prism2_info_hostscanresults(local_info_t *local,
unsigned char *buf, int left)
{
int i, result_size, copy_len, new_count;
struct hfa384x_hostscan_result *results, *prev;
unsigned long flags;
u16 *pos;
u8 *ptr;
wake_up_interruptible(&local->hostscan_wq);
if (left < 4) {
printk(KERN_DEBUG "%s: invalid hostscanresult info frame "
"length %d\n", local->dev->name, left);
return;
}
pos = (u16 *) buf;
copy_len = result_size = le16_to_cpu(*pos);
if (result_size == 0) {
printk(KERN_DEBUG "%s: invalid result_size (0) in "
"hostscanresults\n", local->dev->name);
return;
}
if (copy_len > sizeof(struct hfa384x_hostscan_result))
copy_len = sizeof(struct hfa384x_hostscan_result);
pos++;
pos++;
left -= 4;
ptr = (u8 *) pos;
new_count = left / result_size;
results = kmalloc(new_count * sizeof(struct hfa384x_hostscan_result),
GFP_ATOMIC);
if (results == NULL)
return;
memset(results, 0, new_count * sizeof(struct hfa384x_hostscan_result));
for (i = 0; i < new_count; i++) {
memcpy(&results[i], ptr, copy_len);
ptr += result_size;
left -= result_size;
}
if (left) {
printk(KERN_DEBUG "%s: short HostScan result entry (%d/%d)\n",
local->dev->name, left, result_size);
}
spin_lock_irqsave(&local->lock, flags);
local->last_scan_type = PRISM2_HOSTSCAN;
prev = local->last_hostscan_results;
local->last_hostscan_results = results;
local->last_hostscan_results_count = new_count;
spin_unlock_irqrestore(&local->lock, flags);
kfree(prev);
hostap_report_scan_complete(local);
}
/* Called only as a tasklet (software IRQ) */
static void prism2_info_scanresults(local_info_t *local, unsigned char *buf,
int left)
{
u16 *pos;
int new_count, i;
unsigned long flags;
struct hfa384x_scan_result *res;
struct hfa384x_hostscan_result *results, *prev;
if (left < 4) {
printk(KERN_DEBUG "%s: invalid scanresult info frame "
"length %d\n", local->dev->name, left);
return;
}
pos = (u16 *) buf;
pos++;
pos++;
left -= 4;
new_count = left / sizeof(struct hfa384x_scan_result);
results = kmalloc_array(new_count,
sizeof(struct hfa384x_hostscan_result),
GFP_ATOMIC);
if (results == NULL)
return;
/* Convert to hostscan result format. */
res = (struct hfa384x_scan_result *) pos;
for (i = 0; i < new_count; i++) {
memcpy(&results[i], &res[i],
sizeof(struct hfa384x_scan_result));
results[i].atim = 0;
}
spin_lock_irqsave(&local->lock, flags);
local->last_scan_type = PRISM2_SCAN;
prev = local->last_scan_results;
local->last_scan_results = results;
local->last_scan_results_count = new_count;
spin_unlock_irqrestore(&local->lock, flags);
kfree(prev);
hostap_report_scan_complete(local);
/* Perform rest of ScanResults handling later in scheduled task */
set_bit(PRISM2_INFO_PENDING_SCANRESULTS, &local->pending_info);
schedule_work(&local->info_queue);
}
