[RESEND 02/33] staging: wilc1000: removed unused static variables for gtk and ptk information

Ajay Singh ajay.kathat at microchip.com
Mon Apr 23 16:33:04 UTC 2018


Removed the unnecessary static variables used to store gtk and ptk
information. Key data stored in the params was never access using these
variables.

Variables given below are removed

g_add_gtk_key_params;
g_key_gtk_params;
g_add_ptk_key_params;
g_key_ptk_params;
g_key_wep_params;
g_ptk_keys_saved;
g_gtk_keys_saved;
g_wep_keys_saved;

Signed-off-by: Ajay Singh <ajay.kathat at microchip.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea at microchip.com>
Reviewed-by: Dan Carpenter <dan.carpenter at oracle.com>
---
 drivers/staging/wilc1000/wilc_wfi_cfgoperations.c | 80 -----------------------
 1 file changed, 80 deletions(-)

diff --git a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c
index f9a95f2..402f12e 100644
--- a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c
+++ b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c
@@ -166,15 +166,6 @@ struct add_key_params {
 	u8 *mac_addr;
 };
 
-static struct add_key_params g_add_gtk_key_params;
-static struct wilc_wfi_key g_key_gtk_params;
-static struct add_key_params g_add_ptk_key_params;
-static struct wilc_wfi_key g_key_ptk_params;
-static struct wilc_wfi_wep_key g_key_wep_params;
-static bool g_ptk_keys_saved;
-static bool g_gtk_keys_saved;
-static bool g_wep_keys_saved;
-
 #define AGING_TIME	(9 * 1000)
 #define during_ip_time	15000
 
@@ -739,12 +730,6 @@ static int connect(struct wiphy *wiphy, struct net_device *dev,
 			priv->WILC_WFI_wep_key_len[sme->key_idx] = sme->key_len;
 			memcpy(priv->WILC_WFI_wep_key[sme->key_idx], sme->key, sme->key_len);
 
-			g_key_wep_params.key_len = sme->key_len;
-			g_key_wep_params.key = kmalloc(sme->key_len, GFP_KERNEL);
-			memcpy(g_key_wep_params.key, sme->key, sme->key_len);
-			g_key_wep_params.key_idx = sme->key_idx;
-			g_wep_keys_saved = true;
-
 			wilc_set_wep_default_keyid(vif, sme->key_idx);
 			wilc_add_wep_key_bss_sta(vif, sme->key, sme->key_len,
 						 sme->key_idx);
@@ -754,12 +739,6 @@ static int connect(struct wiphy *wiphy, struct net_device *dev,
 			priv->WILC_WFI_wep_key_len[sme->key_idx] = sme->key_len;
 			memcpy(priv->WILC_WFI_wep_key[sme->key_idx], sme->key, sme->key_len);
 
-			g_key_wep_params.key_len = sme->key_len;
-			g_key_wep_params.key = kmalloc(sme->key_len, GFP_KERNEL);
-			memcpy(g_key_wep_params.key, sme->key, sme->key_len);
-			g_key_wep_params.key_idx = sme->key_idx;
-			g_wep_keys_saved = true;
-
 			wilc_set_wep_default_keyid(vif, sme->key_idx);
 			wilc_add_wep_key_bss_sta(vif, sme->key, sme->key_len,
 						 sme->key_idx);
@@ -1012,27 +991,6 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index,
 					keylen = params->key_len - 16;
 				}
 
-				if (!g_gtk_keys_saved && netdev == wl->vif[0]->ndev) {
-					g_add_gtk_key_params.key_idx = key_index;
-					g_add_gtk_key_params.pairwise = pairwise;
-					if (!mac_addr) {
-						g_add_gtk_key_params.mac_addr = NULL;
-					} else {
-						g_add_gtk_key_params.mac_addr = kmalloc(ETH_ALEN, GFP_KERNEL);
-						memcpy(g_add_gtk_key_params.mac_addr, mac_addr, ETH_ALEN);
-					}
-					g_key_gtk_params.key_len = params->key_len;
-					g_key_gtk_params.seq_len = params->seq_len;
-					g_key_gtk_params.key =  kmalloc(params->key_len, GFP_KERNEL);
-					memcpy(g_key_gtk_params.key, params->key, params->key_len);
-					if (params->seq_len > 0) {
-						g_key_gtk_params.seq =  kmalloc(params->seq_len, GFP_KERNEL);
-						memcpy(g_key_gtk_params.seq, params->seq, params->seq_len);
-					}
-					g_key_gtk_params.cipher = params->cipher;
-					g_gtk_keys_saved = true;
-				}
-
 				wilc_add_rx_gtk(vif, params->key, keylen,
 						key_index, params->seq_len,
 						params->seq, rx_mic,
@@ -1045,27 +1003,6 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index,
 					keylen = params->key_len - 16;
 				}
 
-				if (!g_ptk_keys_saved && netdev == wl->vif[0]->ndev) {
-					g_add_ptk_key_params.key_idx = key_index;
-					g_add_ptk_key_params.pairwise = pairwise;
-					if (!mac_addr) {
-						g_add_ptk_key_params.mac_addr = NULL;
-					} else {
-						g_add_ptk_key_params.mac_addr = kmalloc(ETH_ALEN, GFP_KERNEL);
-						memcpy(g_add_ptk_key_params.mac_addr, mac_addr, ETH_ALEN);
-					}
-					g_key_ptk_params.key_len = params->key_len;
-					g_key_ptk_params.seq_len = params->seq_len;
-					g_key_ptk_params.key =  kmalloc(params->key_len, GFP_KERNEL);
-					memcpy(g_key_ptk_params.key, params->key, params->key_len);
-					if (params->seq_len > 0) {
-						g_key_ptk_params.seq =  kmalloc(params->seq_len, GFP_KERNEL);
-						memcpy(g_key_ptk_params.seq, params->seq, params->seq_len);
-					}
-					g_key_ptk_params.cipher = params->cipher;
-					g_ptk_keys_saved = true;
-				}
-
 				wilc_add_ptk(vif, params->key, keylen,
 					     mac_addr, rx_mic, tx_mic,
 					     STATION_MODE, u8mode, key_index);
@@ -1095,13 +1032,6 @@ static int del_key(struct wiphy *wiphy, struct net_device *netdev,
 	wl = vif->wilc;
 
 	if (netdev == wl->vif[0]->ndev) {
-		g_ptk_keys_saved = false;
-		g_gtk_keys_saved = false;
-		g_wep_keys_saved = false;
-
-		kfree(g_key_wep_params.key);
-		g_key_wep_params.key = NULL;
-
 		if (priv->wilc_gtk[key_index] != NULL) {
 			kfree(priv->wilc_gtk[key_index]->key);
 			priv->wilc_gtk[key_index]->key = NULL;
@@ -1120,16 +1050,6 @@ static int del_key(struct wiphy *wiphy, struct net_device *netdev,
 			kfree(priv->wilc_ptk[key_index]);
 			priv->wilc_ptk[key_index] = NULL;
 		}
-
-		kfree(g_key_ptk_params.key);
-		g_key_ptk_params.key = NULL;
-		kfree(g_key_ptk_params.seq);
-		g_key_ptk_params.seq = NULL;
-
-		kfree(g_key_gtk_params.key);
-		g_key_gtk_params.key = NULL;
-		kfree(g_key_gtk_params.seq);
-		g_key_gtk_params.seq = NULL;
 	}
 
 	if (key_index >= 0 && key_index <= 3) {
-- 
2.7.4




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