linux-kernel - [PATCH] iwlwifi: mvm: fix usage of debug specific variables

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Date:	Wed, 04 Mar 2015 18:59:07 +0100
From:	Alban Gruin <alban.gruin@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	emmanuel.grumbach@...el.com
Subject: [PATCH] iwlwifi: mvm: fix usage of debug specific variables

Some variables in structs "iwl_mvm" and "iwl_mvm_vif" are used for debug
purpose, and are declared only if CONFIG_IWLWIFI_DEBUGFS is
set. However, some of these variables are used even if
CONFIG_IWLWIFI_DEBUGFS is not set, resulting in a compilation error.
This patch aims to fix this issue by adding a preprocessor condition
where these variables are used.

Signed-off-by: Alban Gruin <alban.gruin@...il.com>
---
 drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c | 4 ++++
 drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c | 3 +++
 2 files changed, 7 insertions(+)
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
index 581b3b8..42bd545 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
@@ -1375,10 +1375,12 @@ static void iwl_mvm_beacon_loss_iterator(void *_data, u8 *mac,
 {
 	struct iwl_missed_beacons_notif *missed_beacons = _data;
 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+#ifdef CONFIG_IWLWIFI_DEBUGFS
 	struct iwl_mvm *mvm = mvmvif->mvm;
 	struct iwl_fw_dbg_trigger_missed_bcon *bcon_trig;
 	struct iwl_fw_dbg_trigger_tlv *trigger;
 	u32 stop_trig_missed_bcon, stop_trig_missed_bcon_since_rx;
+#endif
 	u32 rx_missed_bcon, rx_missed_bcon_since_rx;
 
 	if (mvmvif->id != (u16)le32_to_cpu(missed_beacons->mac_id))
@@ -1395,6 +1397,7 @@ static void iwl_mvm_beacon_loss_iterator(void *_data, u8 *mac,
 	     IWL_MVM_MISSED_BEACONS_THRESHOLD)
 		ieee80211_beacon_loss(vif);
 
+#ifdef CONFIG_IWLWIFI_DEBUGFS
 	if (!iwl_fw_dbg_trigger_enabled(mvm->fw,
 					FW_DBG_TRIGGER_MISSED_BEACONS))
 		return;
@@ -1414,6 +1417,7 @@ static void iwl_mvm_beacon_loss_iterator(void *_data, u8 *mac,
 	if (rx_missed_bcon_since_rx >= stop_trig_missed_bcon_since_rx ||
 	    rx_missed_bcon >= stop_trig_missed_bcon)
 		iwl_mvm_fw_dbg_collect_trig(mvm, trigger, NULL, 0);
+#endif
 }
 
 int iwl_mvm_rx_missed_beacons_notif(struct iwl_mvm *mvm,
diff --git a/drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c b/drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c
index 1bd10ed..850c72c 100644
--- a/drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c
+++ b/drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c
@@ -175,8 +175,11 @@ static void iwl_mvm_phy_ctxt_cmd_data(struct iwl_mvm *mvm,
 	cmd->rxchain_info |= cpu_to_le32(idle_cnt << PHY_RX_CHAIN_CNT_POS);
 	cmd->rxchain_info |= cpu_to_le32(active_cnt <<
 					 PHY_RX_CHAIN_MIMO_CNT_POS);
+
+#ifdef CONFIG_IWLWIFI_DEBUGFS
 	if (unlikely(mvm->dbgfs_rx_phyinfo))
 		cmd->rxchain_info = cpu_to_le32(mvm->dbgfs_rx_phyinfo);
+#endif
 
 	cmd->txchain_info = cpu_to_le32(iwl_mvm_get_valid_tx_ant(mvm));
 }
--
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