netdev - [PATCH] rtlwifi:rtl_lps_enter: fix double check cnt_after

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [day] [month] [year] [list]

Date:	Mon, 2 May 2016 14:11:02 +0800
From:	Wang YanQing <udknight@...il.com>
To:	Larry.Finger@...inger.net
Cc:	chaoming_li@...lsil.com.cn, kvalo@...eaurora.org,
	linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] rtlwifi:rtl_lps_enter: fix double check cnt_after_linked

We have checked cnt_after_linked in below code:
"
/*sleep after linked 10s, to let DHCP and 4-way handshake ok enough!! */
if (mac->cnt_after_linked < 5)
        return;
"
So the second check isn't necessary.

This patch delete second check code.

Signed-off-by: Wang YanQing <udknight@...il.com>
---
 drivers/net/wireless/realtek/rtlwifi/ps.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtlwifi/ps.c b/drivers/net/wireless/realtek/rtlwifi/ps.c
index b69321d..9d73581c 100644
--- a/drivers/net/wireless/realtek/rtlwifi/ps.c
+++ b/drivers/net/wireless/realtek/rtlwifi/ps.c
@@ -443,14 +443,11 @@ void rtl_lps_enter(struct ieee80211_hw *hw)
 
 	spin_lock_irqsave(&rtlpriv->locks.lps_lock, flag);
 
-	/* Idle for a while if we connect to AP a while ago. */
-	if (mac->cnt_after_linked >= 2) {
-		if (ppsc->dot11_psmode == EACTIVE) {
-			RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
-				 "Enter 802.11 power save mode...\n");
+	if (ppsc->dot11_psmode == EACTIVE) {
+		RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
+			"Enter 802.11 power save mode...\n");
 
-			rtl_lps_set_psmode(hw, EAUTOPS);
-		}
+		rtl_lps_set_psmode(hw, EAUTOPS);
 	}
 
 	spin_unlock_irqrestore(&rtlpriv->locks.lps_lock, flag);
-- 
1.8.5.6.2.g3d8a54e.dirty