diff options
| author | Christophe JAILLET <christophe.jaillet@wanadoo.fr> | 2021-04-05 09:57:14 +0200 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2021-04-17 20:32:04 +0300 |
| commit | 1186006adee97ebb5b16db0e4ae64e8efb2c8f76 (patch) | |
| tree | 9b8d194b2c14676075dc7e9046e82ef4ff2bd762 | |
| parent | 987e9bcdd0b76a9d35f0b82013294429b401f7bb (diff) | |
rtlwifi: Simplify locking of a skb list accesses
The 'c2hcmd_lock' spinlock is only used to protect some __skb_queue_tail()
and __skb_dequeue() calls.
Use the lock provided in the skb itself and call skb_queue_tail() and
skb_dequeue(). These functions already include the correct locking.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/99cf8894fd52202cb7ce2ec6e3200eef400bc071.1617609346.git.christophe.jaillet@wanadoo.fr
| -rw-r--r-- | drivers/net/wireless/realtek/rtlwifi/base.c | 15 | ||||
| -rw-r--r-- | drivers/net/wireless/realtek/rtlwifi/wifi.h | 1 |
2 files changed, 2 insertions, 14 deletions
diff --git a/drivers/net/wireless/realtek/rtlwifi/base.c b/drivers/net/wireless/realtek/rtlwifi/base.c index 6e8bd99e8911..2a7ee90a3f54 100644 --- a/drivers/net/wireless/realtek/rtlwifi/base.c +++ b/drivers/net/wireless/realtek/rtlwifi/base.c @@ -551,7 +551,6 @@ int rtl_init_core(struct ieee80211_hw *hw) spin_lock_init(&rtlpriv->locks.rf_lock); spin_lock_init(&rtlpriv->locks.waitq_lock); spin_lock_init(&rtlpriv->locks.entry_list_lock); - spin_lock_init(&rtlpriv->locks.c2hcmd_lock); spin_lock_init(&rtlpriv->locks.scan_list_lock); spin_lock_init(&rtlpriv->locks.cck_and_rw_pagea_lock); spin_lock_init(&rtlpriv->locks.fw_ps_lock); @@ -2269,7 +2268,6 @@ static bool rtl_c2h_fast_cmd(struct ieee80211_hw *hw, struct sk_buff *skb) void rtl_c2hcmd_enqueue(struct ieee80211_hw *hw, struct sk_buff *skb) { struct rtl_priv *rtlpriv = rtl_priv(hw); - unsigned long flags; if (rtl_c2h_fast_cmd(hw, skb)) { rtl_c2h_content_parsing(hw, skb); @@ -2278,11 +2276,7 @@ void rtl_c2hcmd_enqueue(struct ieee80211_hw *hw, struct sk_buff *skb) } /* enqueue */ - spin_lock_irqsave(&rtlpriv->locks.c2hcmd_lock, flags); - - __skb_queue_tail(&rtlpriv->c2hcmd_queue, skb); - - spin_unlock_irqrestore(&rtlpriv->locks.c2hcmd_lock, flags); + skb_queue_tail(&rtlpriv->c2hcmd_queue, skb); /* wake up wq */ queue_delayed_work(rtlpriv->works.rtl_wq, &rtlpriv->works.c2hcmd_wq, 0); @@ -2340,16 +2334,11 @@ void rtl_c2hcmd_launcher(struct ieee80211_hw *hw, int exec) { struct rtl_priv *rtlpriv = rtl_priv(hw); struct sk_buff *skb; - unsigned long flags; int i; for (i = 0; i < 200; i++) { /* dequeue a task */ - spin_lock_irqsave(&rtlpriv->locks.c2hcmd_lock, flags); - - skb = __skb_dequeue(&rtlpriv->c2hcmd_queue); - - spin_unlock_irqrestore(&rtlpriv->locks.c2hcmd_lock, flags); + skb = skb_dequeue(&rtlpriv->c2hcmd_queue); /* do it */ if (!skb) diff --git a/drivers/net/wireless/realtek/rtlwifi/wifi.h b/drivers/net/wireless/realtek/rtlwifi/wifi.h index 9119144bb5a3..877ed6a1589f 100644 --- a/drivers/net/wireless/realtek/rtlwifi/wifi.h +++ b/drivers/net/wireless/realtek/rtlwifi/wifi.h @@ -2450,7 +2450,6 @@ struct rtl_locks { spinlock_t waitq_lock; spinlock_t entry_list_lock; spinlock_t usb_lock; - spinlock_t c2hcmd_lock; spinlock_t scan_list_lock; /* lock for the scan list */ /*FW clock change */ |