2018-05-06 07:33:31

by Nathan Chancellor

[permalink] [raw]
Subject: [PATCH 1/3] staging: wilc1000: Remove unused variables

GCC warns these variables are all set but never used so remove them.

Signed-off-by: Nathan Chancellor <[email protected]>
---
drivers/staging/wilc1000/host_interface.c | 12 ------------
drivers/staging/wilc1000/wilc_wfi_cfgoperations.c | 6 ------
2 files changed, 18 deletions(-)

diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c
index 28edd904b33a..3fd4c8e62da6 100644
--- a/drivers/staging/wilc1000/host_interface.c
+++ b/drivers/staging/wilc1000/host_interface.c
@@ -1432,13 +1432,7 @@ static s32 handle_rcvd_gnrl_async_info(struct wilc_vif *vif,
{
s32 result = 0;
u8 msg_type = 0;
- u8 msg_id = 0;
- u16 msg_len = 0;
- u16 wid_id = (u16)WID_NIL;
- u8 wid_len = 0;
u8 mac_status;
- u8 mac_status_reason_code;
- u8 mac_status_additional_info;
struct host_if_drv *hif_drv = vif->hif_drv;

if (!rcvd_info->buffer) {
@@ -1472,13 +1466,7 @@ static s32 handle_rcvd_gnrl_async_info(struct wilc_vif *vif,
return -EFAULT;
}

- msg_id = rcvd_info->buffer[1];
- msg_len = MAKE_WORD16(rcvd_info->buffer[2], rcvd_info->buffer[3]);
- wid_id = MAKE_WORD16(rcvd_info->buffer[4], rcvd_info->buffer[5]);
- wid_len = rcvd_info->buffer[6];
mac_status = rcvd_info->buffer[7];
- mac_status_reason_code = rcvd_info->buffer[8];
- mac_status_additional_info = rcvd_info->buffer[9];
if (hif_drv->hif_state == HOST_IF_WAITING_CONN_RESP) {
host_int_parse_assoc_resp_info(vif, mac_status);
} else if ((mac_status == MAC_STATUS_DISCONNECTED) &&
diff --git a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c
index 8be3c4c57579..76b4afaef423 100644
--- a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c
+++ b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c
@@ -917,12 +917,10 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index,
const u8 *tx_mic = NULL;
u8 mode = NO_ENCRYPT;
u8 op_mode;
- struct wilc *wl;
struct wilc_vif *vif;

priv = wiphy_priv(wiphy);
vif = netdev_priv(netdev);
- wl = vif->wilc;

switch (params->cipher) {
case WLAN_CIPHER_SUITE_WEP40:
@@ -1885,12 +1883,10 @@ static int start_ap(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_ap_settings *settings)
{
struct cfg80211_beacon_data *beacon = &settings->beacon;
- struct wilc_priv *priv;
s32 ret = 0;
struct wilc *wl;
struct wilc_vif *vif;

- priv = wiphy_priv(wiphy);
vif = netdev_priv(dev);
wl = vif->wilc;

@@ -2016,14 +2012,12 @@ static int change_station(struct wiphy *wiphy, struct net_device *dev,
const u8 *mac, struct station_parameters *params)
{
s32 ret = 0;
- struct wilc_priv *priv;
struct add_sta_param sta_params = { {0} };
struct wilc_vif *vif;

if (!wiphy)
return -EFAULT;

- priv = wiphy_priv(wiphy);
vif = netdev_priv(dev);

if (vif->iftype == AP_MODE || vif->iftype == GO_MODE) {
--
2.17.0


2018-05-07 05:54:58

by Ajay Singh

[permalink] [raw]
Subject: Re: [PATCH 2/3] staging: wilc1000: Remove useless function

On Sun, 6 May 2018 00:33:32 -0700
Nathan Chancellor <[email protected]> wrote:

> GCC warns that 'wid' is unused in wilc_remove_key and it's correct;
> the variable is only local. Get rid of the function (since it just
> returns zero) and shuffle the remaining code into one if statement.
>
> Signed-off-by: Nathan Chancellor <[email protected]>

Reviewed-by: Ajay Singh <[email protected]>

> ---
> drivers/staging/wilc1000/host_interface.c | 12 ------------
> drivers/staging/wilc1000/host_interface.h | 1 -
> drivers/staging/wilc1000/wilc_wfi_cfgoperations.c | 14 +++++---------
> 3 files changed, 5 insertions(+), 22 deletions(-)
>
> diff --git a/drivers/staging/wilc1000/host_interface.c
> b/drivers/staging/wilc1000/host_interface.c index
> 3fd4c8e62da6..b5f3829e9903 100644 ---
> a/drivers/staging/wilc1000/host_interface.c +++
> b/drivers/staging/wilc1000/host_interface.c @@ -2606,18 +2606,6 @@
> static void timer_connect_cb(struct timer_list *t)
> wilc_enqueue_cmd(&msg); }
>
> -s32 wilc_remove_key(struct host_if_drv *hif_drv, const u8 *sta_addr)
> -{
> - struct wid wid;
> -
> - wid.id = (u16)WID_REMOVE_KEY;
> - wid.type = WID_STR;
> - wid.val = (s8 *)sta_addr;
> - wid.size = 6;
> -
> - return 0;
> -}
> -
> int wilc_remove_wep_key(struct wilc_vif *vif, u8 index)
> {
> int result = 0;
> diff --git a/drivers/staging/wilc1000/host_interface.h
> b/drivers/staging/wilc1000/host_interface.h index
> 7a26f341e0ba..08b3ba7df8b4 100644 ---
> a/drivers/staging/wilc1000/host_interface.h +++
> b/drivers/staging/wilc1000/host_interface.h @@ -303,7 +303,6 @@
> struct add_sta_param { };
>
> struct wilc_vif;
> -s32 wilc_remove_key(struct host_if_drv *hif_drv, const u8 *sta_addr);
> int wilc_remove_wep_key(struct wilc_vif *vif, u8 index);
> int wilc_set_wep_default_keyid(struct wilc_vif *vif, u8 index);
> int wilc_add_wep_key_bss_sta(struct wilc_vif *vif, const u8 *key, u8
> len, diff --git a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c
> b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c index
> 76b4afaef423..b499fb987395 100644 ---
> a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c +++
> b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c @@ -1054,15
> +1054,11 @@ static int del_key(struct wiphy *wiphy, struct net_device
> *netdev, } }
>
> - if (key_index >= 0 && key_index <= 3) {
> - if (priv->wep_key_len[key_index]) {
> - memset(priv->wep_key[key_index], 0,
> - priv->wep_key_len[key_index]);
> - priv->wep_key_len[key_index] = 0;
> - wilc_remove_wep_key(vif, key_index);
> - }
> - } else {
> - wilc_remove_key(priv->hif_drv, mac_addr);
> + if (key_index >= 0 && key_index <= 3 &&
> priv->wep_key_len[key_index]) {
> + memset(priv->wep_key[key_index], 0,
> + priv->wep_key_len[key_index]);
> + priv->wep_key_len[key_index] = 0;
> + wilc_remove_wep_key(vif, key_index);
> }
>
> return 0;

2018-05-07 05:54:06

by Ajay Singh

[permalink] [raw]
Subject: Re: [PATCH 1/3] staging: wilc1000: Remove unused variables

Thank you for the patch series.

On Sun, 6 May 2018 00:33:31 -0700
Nathan Chancellor <[email protected]> wrote:

> GCC warns these variables are all set but never used so remove them.
>
> Signed-off-by: Nathan Chancellor <[email protected]>

Reviewed-by: Ajay Singh <[email protected]>

> ---
> drivers/staging/wilc1000/host_interface.c | 12 ------------
> drivers/staging/wilc1000/wilc_wfi_cfgoperations.c | 6 ------
> 2 files changed, 18 deletions(-)
>
> diff --git a/drivers/staging/wilc1000/host_interface.c
> b/drivers/staging/wilc1000/host_interface.c index
> 28edd904b33a..3fd4c8e62da6 100644 ---
> a/drivers/staging/wilc1000/host_interface.c +++
> b/drivers/staging/wilc1000/host_interface.c @@ -1432,13 +1432,7 @@
> static s32 handle_rcvd_gnrl_async_info(struct wilc_vif *vif, {
> s32 result = 0;
> u8 msg_type = 0;
> - u8 msg_id = 0;
> - u16 msg_len = 0;
> - u16 wid_id = (u16)WID_NIL;
> - u8 wid_len = 0;
> u8 mac_status;
> - u8 mac_status_reason_code;
> - u8 mac_status_additional_info;
> struct host_if_drv *hif_drv = vif->hif_drv;
>
> if (!rcvd_info->buffer) {
> @@ -1472,13 +1466,7 @@ static s32 handle_rcvd_gnrl_async_info(struct
> wilc_vif *vif, return -EFAULT;
> }
>
> - msg_id = rcvd_info->buffer[1];
> - msg_len = MAKE_WORD16(rcvd_info->buffer[2],
> rcvd_info->buffer[3]);
> - wid_id = MAKE_WORD16(rcvd_info->buffer[4],
> rcvd_info->buffer[5]);
> - wid_len = rcvd_info->buffer[6];
> mac_status = rcvd_info->buffer[7];
> - mac_status_reason_code = rcvd_info->buffer[8];
> - mac_status_additional_info = rcvd_info->buffer[9];
> if (hif_drv->hif_state == HOST_IF_WAITING_CONN_RESP)
> { host_int_parse_assoc_resp_info(vif, mac_status);
> } else if ((mac_status == MAC_STATUS_DISCONNECTED) &&
> diff --git a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c
> b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c index
> 8be3c4c57579..76b4afaef423 100644 ---
> a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c +++
> b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c @@ -917,12
> +917,10 @@ static int add_key(struct wiphy *wiphy, struct net_device
> *netdev, u8 key_index, const u8 *tx_mic = NULL; u8 mode = NO_ENCRYPT;
> u8 op_mode;
> - struct wilc *wl;
> struct wilc_vif *vif;
>
> priv = wiphy_priv(wiphy);
> vif = netdev_priv(netdev);
> - wl = vif->wilc;
>
> switch (params->cipher) {
> case WLAN_CIPHER_SUITE_WEP40:
> @@ -1885,12 +1883,10 @@ static int start_ap(struct wiphy *wiphy,
> struct net_device *dev, struct cfg80211_ap_settings *settings)
> {
> struct cfg80211_beacon_data *beacon = &settings->beacon;
> - struct wilc_priv *priv;
> s32 ret = 0;
> struct wilc *wl;
> struct wilc_vif *vif;
>
> - priv = wiphy_priv(wiphy);
> vif = netdev_priv(dev);
> wl = vif->wilc;
>
> @@ -2016,14 +2012,12 @@ static int change_station(struct wiphy
> *wiphy, struct net_device *dev, const u8 *mac, struct
> station_parameters *params) {
> s32 ret = 0;
> - struct wilc_priv *priv;
> struct add_sta_param sta_params = { {0} };
> struct wilc_vif *vif;
>
> if (!wiphy)
> return -EFAULT;
>
> - priv = wiphy_priv(wiphy);
> vif = netdev_priv(dev);
>
> if (vif->iftype == AP_MODE || vif->iftype == GO_MODE) {

2018-05-07 05:55:33

by Ajay Singh

[permalink] [raw]
Subject: Re: [PATCH 3/3] staging: wilc1000: Remove unnecessary array index check

On Sun, 6 May 2018 00:33:33 -0700
Nathan Chancellor <[email protected]> wrote:

> This statment triggers GCC's -Wtype-limit since key_index is an
> unsigned integer so it cannot be less than zero.
>
> Signed-off-by: Nathan Chancellor <[email protected]>

Reviewed-by: Ajay Singh <[email protected]>

> ---
> drivers/staging/wilc1000/wilc_wfi_cfgoperations.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c
> b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c index
> b499fb987395..e0015ca6c21a 100644 ---
> a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c +++
> b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c @@ -1054,7
> +1054,7 @@ static int del_key(struct wiphy *wiphy, struct net_device
> *netdev, } }
>
> - if (key_index >= 0 && key_index <= 3 &&
> priv->wep_key_len[key_index]) {
> + if (key_index <= 3 && priv->wep_key_len[key_index]) {
> memset(priv->wep_key[key_index], 0,
> priv->wep_key_len[key_index]);
> priv->wep_key_len[key_index] = 0;

2018-05-06 07:33:32

by Nathan Chancellor

[permalink] [raw]
Subject: [PATCH 2/3] staging: wilc1000: Remove useless function

GCC warns that 'wid' is unused in wilc_remove_key and it's correct; the
variable is only local. Get rid of the function (since it just returns
zero) and shuffle the remaining code into one if statement.

Signed-off-by: Nathan Chancellor <[email protected]>
---
drivers/staging/wilc1000/host_interface.c | 12 ------------
drivers/staging/wilc1000/host_interface.h | 1 -
drivers/staging/wilc1000/wilc_wfi_cfgoperations.c | 14 +++++---------
3 files changed, 5 insertions(+), 22 deletions(-)

diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c
index 3fd4c8e62da6..b5f3829e9903 100644
--- a/drivers/staging/wilc1000/host_interface.c
+++ b/drivers/staging/wilc1000/host_interface.c
@@ -2606,18 +2606,6 @@ static void timer_connect_cb(struct timer_list *t)
wilc_enqueue_cmd(&msg);
}

-s32 wilc_remove_key(struct host_if_drv *hif_drv, const u8 *sta_addr)
-{
- struct wid wid;
-
- wid.id = (u16)WID_REMOVE_KEY;
- wid.type = WID_STR;
- wid.val = (s8 *)sta_addr;
- wid.size = 6;
-
- return 0;
-}
-
int wilc_remove_wep_key(struct wilc_vif *vif, u8 index)
{
int result = 0;
diff --git a/drivers/staging/wilc1000/host_interface.h b/drivers/staging/wilc1000/host_interface.h
index 7a26f341e0ba..08b3ba7df8b4 100644
--- a/drivers/staging/wilc1000/host_interface.h
+++ b/drivers/staging/wilc1000/host_interface.h
@@ -303,7 +303,6 @@ struct add_sta_param {
};

struct wilc_vif;
-s32 wilc_remove_key(struct host_if_drv *hif_drv, const u8 *sta_addr);
int wilc_remove_wep_key(struct wilc_vif *vif, u8 index);
int wilc_set_wep_default_keyid(struct wilc_vif *vif, u8 index);
int wilc_add_wep_key_bss_sta(struct wilc_vif *vif, const u8 *key, u8 len,
diff --git a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c
index 76b4afaef423..b499fb987395 100644
--- a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c
+++ b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c
@@ -1054,15 +1054,11 @@ static int del_key(struct wiphy *wiphy, struct net_device *netdev,
}
}

- if (key_index >= 0 && key_index <= 3) {
- if (priv->wep_key_len[key_index]) {
- memset(priv->wep_key[key_index], 0,
- priv->wep_key_len[key_index]);
- priv->wep_key_len[key_index] = 0;
- wilc_remove_wep_key(vif, key_index);
- }
- } else {
- wilc_remove_key(priv->hif_drv, mac_addr);
+ if (key_index >= 0 && key_index <= 3 && priv->wep_key_len[key_index]) {
+ memset(priv->wep_key[key_index], 0,
+ priv->wep_key_len[key_index]);
+ priv->wep_key_len[key_index] = 0;
+ wilc_remove_wep_key(vif, key_index);
}

return 0;
--
2.17.0

2018-05-06 07:33:34

by Nathan Chancellor

[permalink] [raw]
Subject: [PATCH 3/3] staging: wilc1000: Remove unnecessary array index check

This statment triggers GCC's -Wtype-limit since key_index is an
unsigned integer so it cannot be less than zero.

Signed-off-by: Nathan Chancellor <[email protected]>
---
drivers/staging/wilc1000/wilc_wfi_cfgoperations.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c
index b499fb987395..e0015ca6c21a 100644
--- a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c
+++ b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c
@@ -1054,7 +1054,7 @@ static int del_key(struct wiphy *wiphy, struct net_device *netdev,
}
}

- if (key_index >= 0 && key_index <= 3 && priv->wep_key_len[key_index]) {
+ if (key_index <= 3 && priv->wep_key_len[key_index]) {
memset(priv->wep_key[key_index], 0,
priv->wep_key_len[key_index]);
priv->wep_key_len[key_index] = 0;
--
2.17.0