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SubjectRe: [PATCH -next] staging: rtlwifi: base: Remove set but not used variables
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On 4/6/2019 8:42 AM, YueHaibing wrote:
> Fixes gcc '-Wunused-but-set-variable' warning:
>
> drivers/staging/rtlwifi/base.c: In function 'rtl_tx_agg_stop':
> drivers/staging/rtlwifi/base.c:1733:23: warning:
> variable 'tid_data' set but not used [-Wunused-but-set-variable]
>
> drivers/staging/rtlwifi/base.c: In function 'rtl_check_beacon_key':
> drivers/staging/rtlwifi/base.c:2474:5: warning:
> variable 'ds_param_len' set but not used [-Wunused-but-set-variable]
>
> drivers/staging/rtlwifi/base.c:2472:5: warning:
> variable 'ht_oper_len' set but not used [-Wunused-but-set-variable]
>
> drivers/staging/rtlwifi/base.c:2470:5: warning:
> variable 'ht_cap_len' set but not used [-Wunused-but-set-variable]
>
> They are never used and can be removed.
>
> Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Mukesh Ojha <mojha@codeaurora.org>

Cheers,
-Mukesh

> ---
> drivers/staging/rtlwifi/base.c | 18 ++++--------------
> 1 file changed, 4 insertions(+), 14 deletions(-)
>
> diff --git a/drivers/staging/rtlwifi/base.c b/drivers/staging/rtlwifi/base.c
> index b8358ebbf912..b8b89e4c54d4 100644
> --- a/drivers/staging/rtlwifi/base.c
> +++ b/drivers/staging/rtlwifi/base.c
> @@ -1730,7 +1730,6 @@ int rtl_tx_agg_stop(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
> struct ieee80211_sta *sta, u16 tid)
> {
> struct rtl_priv *rtlpriv = rtl_priv(hw);
> - struct rtl_tid_data *tid_data;
> struct rtl_sta_info *sta_entry = NULL;
>
> if (!sta)
> @@ -1743,7 +1742,6 @@ int rtl_tx_agg_stop(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
> return -EINVAL;
>
> sta_entry = (struct rtl_sta_info *)sta->drv_priv;
> - tid_data = &sta_entry->tids[tid];
> sta_entry->tids[tid].agg.agg_state = RTL_AGG_STOP;
>
> ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
> @@ -2467,11 +2465,8 @@ bool rtl_check_beacon_key(struct ieee80211_hw *hw, void *data, unsigned int len)
> struct rtl_beacon_keys bcn_key = {};
> struct rtl_beacon_keys *cur_bcn_key;
> u8 *ht_cap;
> - u8 ht_cap_len;
> u8 *ht_oper;
> - u8 ht_oper_len;
> u8 *ds_param;
> - u8 ds_param_len;
>
> if (mac->opmode != NL80211_IFTYPE_STATION)
> return false;
> @@ -2502,18 +2497,15 @@ bool rtl_check_beacon_key(struct ieee80211_hw *hw, void *data, unsigned int len)
> /***** Parsing DS Param IE ******/
> ds_param = rtl_find_ie(data, len - FCS_LEN, WLAN_EID_DS_PARAMS);
>
> - if (ds_param && !(ds_param[1] < sizeof(*ds_param))) {
> - ds_param_len = ds_param[1];
> + if (ds_param && !(ds_param[1] < sizeof(*ds_param)))
> bcn_key.bcn_channel = ds_param[2];
> - } else {
> + else
> ds_param = NULL;
> - }
>
> /***** Parsing HT Cap. IE ******/
> ht_cap = rtl_find_ie(data, len - FCS_LEN, WLAN_EID_HT_CAPABILITY);
>
> if (ht_cap && !(ht_cap[1] < sizeof(*ht_cap))) {
> - ht_cap_len = ht_cap[1];
> ht_cap_ie = (struct ieee80211_ht_cap *)&ht_cap[2];
> bcn_key.ht_cap_info = ht_cap_ie->cap_info;
> } else {
> @@ -2523,12 +2515,10 @@ bool rtl_check_beacon_key(struct ieee80211_hw *hw, void *data, unsigned int len)
> /***** Parsing HT Info. IE ******/
> ht_oper = rtl_find_ie(data, len - FCS_LEN, WLAN_EID_HT_OPERATION);
>
> - if (ht_oper && !(ht_oper[1] < sizeof(*ht_oper))) {
> - ht_oper_len = ht_oper[1];
> + if (ht_oper && !(ht_oper[1] < sizeof(*ht_oper)))
> ht_oper_ie = (struct ieee80211_ht_operation *)&ht_oper[2];
> - } else {
> + else
> ht_oper = NULL;
> - }
>
> /* update bcn_key */
>
>
>
>
>
>

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