linux-kernel - [PATCH net-next 2/2] net: bgmac: Mask interrupts during probe

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Message-Id: <20180327232002.29399-3-f.fainelli@gmail.com>
Date:   Tue, 27 Mar 2018 16:20:02 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     netdev@...r.kernel.org
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Scott Branden <scott.branden@...adcom.com>,
        Abhishek Shah <abhishek.shah@...adcom.com>,
        Florian Westphal <fw@...len.de>,
        linux-kernel@...r.kernel.org (open list),
        bcm-kernel-feedback-list@...adcom.com
Subject: [PATCH net-next 2/2] net: bgmac: Mask interrupts during probe

We can have interrupts left enabled form e.g: the bootloader which used
the network device for network boot. Make sure we have those disabled as
early as possible to avoid spurious interrupts.

Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
---
 drivers/net/ethernet/broadcom/bgmac.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c
index 46d7b8068425..2326cc219c46 100644
--- a/drivers/net/ethernet/broadcom/bgmac.c
+++ b/drivers/net/ethernet/broadcom/bgmac.c
@@ -1492,6 +1492,8 @@ int bgmac_enet_probe(struct bgmac *bgmac)
 	struct net_device *net_dev = bgmac->net_dev;
 	int err;
 
+	bgmac_chip_intrs_off(bgmac);
+
 	net_dev->irq = bgmac->irq;
 	SET_NETDEV_DEV(net_dev, bgmac->dev);
 	dev_set_drvdata(bgmac->dev, bgmac);
-- 
2.14.1