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iwlwifi: mvm: print scanned channel list on scan iteration complete notification

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When receiving scan iteration complete notification, print a list of
the channels that have been scanned in this iteration.
This is useful for debugging.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This commit is contained in:
Avraham Stern 2015-03-31 16:22:33 +03:00 • committed by Emmanuel Grumbach
parent 741c4cfbf7
commit 1fa1bcc02c
1 changed files with 21 additions and 2 deletions
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23
drivers/net/wireless/iwlwifi/mvm/scan.c
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@ -312,16 +312,35 @@ int iwl_mvm_max_scan_ie_len(struct iwl_mvm *mvm)
return max_ie_len; return max_ie_len;
} }
static u8 *iwl_mvm_dump_channel_list(struct iwl_scan_results_notif *res,
int num_res, u8 *buf, size_t buf_size)
{
int i;
u8 *pos = buf, *end = buf + buf_size;
for (i = 0; pos < end && i < num_res; i++)
pos += snprintf(pos, end - pos, " %u", res[i].channel);
/* terminate the string in case the buffer was too short */
*(buf + buf_size - 1) = '\0';
return buf;
}
int iwl_mvm_rx_scan_offload_iter_complete_notif(struct iwl_mvm *mvm, int iwl_mvm_rx_scan_offload_iter_complete_notif(struct iwl_mvm *mvm,
struct iwl_rx_cmd_buffer *rxb, struct iwl_rx_cmd_buffer *rxb,
struct iwl_device_cmd *cmd) struct iwl_device_cmd *cmd)
{ {
struct iwl_rx_packet *pkt = rxb_addr(rxb); struct iwl_rx_packet *pkt = rxb_addr(rxb);
struct iwl_lmac_scan_complete_notif *notif = (void *)pkt->data; struct iwl_lmac_scan_complete_notif *notif = (void *)pkt->data;
u8 buf[256];
IWL_DEBUG_SCAN(mvm, IWL_DEBUG_SCAN(mvm,
"Scan offload iteration complete: status=0x%x scanned channels=%d\n", "Scan offload iteration complete: status=0x%x scanned channels=%d channels list: %s\n",
notif->status, notif->scanned_channels); notif->status, notif->scanned_channels,
iwl_mvm_dump_channel_list(notif->results,
notif->scanned_channels, buf,
sizeof(buf)));
return 0; return 0;
} }