On Tue, Apr 07, 2020 at 08:07:44AM -0400, Wang Hai wrote:
> Fixes gcc '-Wunused-but-set-variable' warning:
>
> drivers/staging/rtl8192u/r8192U_core.c: In function rtl8192_hard_data_xmit:
> drivers/staging/rtl8192u/r8192U_core.c:905:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable]
> drivers/staging/rtl8192u/r8192U_core.c: In function rtl8192_commit:
> drivers/staging/rtl8192u/r8192U_core.c:3418:6: warning: variable ‘reset_status’ set but not used [-Wunused-but-set-variable]
>
> Fixes: 8fc8598e61f6 ("Staging: Added Realtek rtl8192u driver to staging")
> Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
> Signed-off-by: Wang Hai <wanghai38@xxxxxxxxxx>
> ---
> drivers/staging/rtl8192u/r8192U_core.c | 6 ++----
> 1 file changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c
> index fcfb902..bb28670 100644
> --- a/drivers/staging/rtl8192u/r8192U_core.c
> +++ b/drivers/staging/rtl8192u/r8192U_core.c
> @@ -902,7 +902,6 @@ static void rtl8192_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
> int rate)
> {
> struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
> - int ret;
> unsigned long flags;
> struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
> u8 queue_index = tcb_desc->queue_index;
> @@ -915,7 +914,7 @@ static void rtl8192_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
> *(struct net_device **)(skb->cb) = dev;
> tcb_desc->bTxEnableFwCalcDur = 1;
> skb_push(skb, priv->ieee80211->tx_headroom);
> - ret = rtl8192_tx(dev, skb);
> + rtl8192_tx(dev, skb);
Shouldn't we do something about an error if that function returns an
error? Why are we ignoring it?
>
> spin_unlock_irqrestore(&priv->tx_lock, flags);
> }
> @@ -3415,7 +3414,6 @@ int rtl8192_down(struct net_device *dev)
> void rtl8192_commit(struct net_device *dev)
> {
> struct r8192_priv *priv = ieee80211_priv(dev);
> - int reset_status = 0;
>
> if (priv->up == 0)
> return;
> @@ -3427,7 +3425,7 @@ void rtl8192_commit(struct net_device *dev)
> ieee80211_softmac_stop_protocol(priv->ieee80211);
>
> rtl8192_rtx_disable(dev);
> - reset_status = _rtl8192_up(dev);
> + _rtl8192_up(dev);
Same here, should that really be ignored?
thanks,
greg k-h
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