From 1fa1bcc02c158bc8a802907cc01dfa33663ec16c Mon Sep 17 00:00:00 2001 From: Avraham Stern Date: Tue, 31 Mar 2015 16:22:33 +0300 Subject: [PATCH] iwlwifi: mvm: print scanned channel list on scan iteration complete notification 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 Signed-off-by: Emmanuel Grumbach --- drivers/net/wireless/iwlwifi/mvm/scan.c | 23 +++++++++++++++++++++-- 1 file changed, 21 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/mvm/scan.c b/drivers/net/wireless/iwlwifi/mvm/scan.c index 7777d56cbb60..e859584f0f35 100644 --- a/drivers/net/wireless/iwlwifi/mvm/scan.c +++ b/drivers/net/wireless/iwlwifi/mvm/scan.c @@ -312,16 +312,35 @@ int iwl_mvm_max_scan_ie_len(struct iwl_mvm *mvm) 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, struct iwl_rx_cmd_buffer *rxb, struct iwl_device_cmd *cmd) { struct iwl_rx_packet *pkt = rxb_addr(rxb); struct iwl_lmac_scan_complete_notif *notif = (void *)pkt->data; + u8 buf[256]; IWL_DEBUG_SCAN(mvm, - "Scan offload iteration complete: status=0x%x scanned channels=%d\n", - notif->status, notif->scanned_channels); + "Scan offload iteration complete: status=0x%x scanned channels=%d channels list: %s\n", + notif->status, notif->scanned_channels, + iwl_mvm_dump_channel_list(notif->results, + notif->scanned_channels, buf, + sizeof(buf))); return 0; } -- GitLab