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: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20231214114600.2451162-20-claudiu.beznea.uj@bp.renesas.com>
Date: Thu, 14 Dec 2023 13:45:58 +0200
From: Claudiu <claudiu.beznea@...on.dev>
To: s.shtylyov@....ru,
	davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	richardcochran@...il.com,
	p.zabel@...gutronix.de,
	yoshihiro.shimoda.uh@...esas.com,
	wsa+renesas@...g-engineering.com,
	geert+renesas@...der.be
Cc: netdev@...r.kernel.org,
	linux-renesas-soc@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Claudiu Beznea <claudiu.beznea.uj@...renesas.com>
Subject: [PATCH net-next v2 19/21] net: ravb: Do not set promiscuous mode if the interface is down

From: Claudiu Beznea <claudiu.beznea.uj@...renesas.com>

Do not allow setting promiscuous mode if the interface is down. In case
runtime PM is enabled, and while interface is down, the IP will be in reset
mode (as for some platforms disabling/enabling the clocks will switch the
IP to standby mode which will lead to losing registers' content).

Commit prepares for the addition of runtime PM.

Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@...renesas.com>
---

Changes in v2:
- none; this patch is new

 drivers/net/ethernet/renesas/ravb_main.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index 1995cf7ff084..633346b6cd7c 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -2164,6 +2164,9 @@ static void ravb_set_rx_mode(struct net_device *ndev)
 	struct ravb_private *priv = netdev_priv(ndev);
 	unsigned long flags;
 
+	if (!netif_running(ndev))
+		return;
+
 	spin_lock_irqsave(&priv->lock, flags);
 	ravb_modify(ndev, ECMR, ECMR_PRM,
 		    ndev->flags & IFF_PROMISC ? ECMR_PRM : 0);
-- 
2.39.2


Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ