linux-kernel - [PATCH 4.19 090/100] net: stmmac: move stmmac_check_ether

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: <20190430113613.062637557@linuxfoundation.org>
Date:   Tue, 30 Apr 2019 13:38:59 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Xiaofei Shen <xiaofeis@...eaurora.org>,
        Sneh Shah <snehshah@...eaurora.org>,
        Vinod Koul <vkoul@...nel.org>, Andrew Lunn <andrew@...n.ch>,
        "David S. Miller" <davem@...emloft.net>
Subject: [PATCH 4.19 090/100] net: stmmac: move stmmac_check_ether_addr() to driver probe

From: Vinod Koul <vkoul@...nel.org>

[ Upstream commit b561af36b1841088552464cdc3f6371d92f17710 ]

stmmac_check_ether_addr() checks the MAC address and assigns one in
driver open(). In many cases when we create slave netdevice, the dev
addr is inherited from master but the master dev addr maybe NULL at
that time, so move this call to driver probe so that address is
always valid.

Signed-off-by: Xiaofei Shen <xiaofeis@...eaurora.org>
Tested-by: Xiaofei Shen <xiaofeis@...eaurora.org>
Signed-off-by: Sneh Shah <snehshah@...eaurora.org>
Signed-off-by: Vinod Koul <vkoul@...nel.org>
Reviewed-by: Andrew Lunn <andrew@...n.ch>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -2595,8 +2595,6 @@ static int stmmac_open(struct net_device
 	u32 chan;
 	int ret;
 
-	stmmac_check_ether_addr(priv);
-
 	if (priv->hw->pcs != STMMAC_PCS_RGMII &&
 	    priv->hw->pcs != STMMAC_PCS_TBI &&
 	    priv->hw->pcs != STMMAC_PCS_RTBI) {
@@ -4296,6 +4294,8 @@ int stmmac_dvr_probe(struct device *devi
 	if (ret)
 		goto error_hw_init;
 
+	stmmac_check_ether_addr(priv);
+
 	/* Configure real RX and TX queues */
 	netif_set_real_num_rx_queues(ndev, priv->plat->rx_queues_to_use);
 	netif_set_real_num_tx_queues(ndev, priv->plat->tx_queues_to_use);