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From: Jakub Kicinski <kuba@kernel.org>
To: davem@davemloft.net
Cc: netdev@vger.kernel.org, Jakub Kicinski <kuba@kernel.org>
Subject: [PATCH net-next 2/7] ethernet: make eth_hw_addr_random() use dev_addr_set()
Date: Wed, 13 Oct 2021 13:44:30 -0700	[thread overview]
Message-ID: <20211013204435.322561-3-kuba@kernel.org> (raw)
In-Reply-To: <20211013204435.322561-1-kuba@kernel.org>

Commit 406f42fa0d3c ("net-next: When a bond have a massive amount
of VLANs...") introduced a rbtree for faster Ethernet address look
up. To maintain netdev->dev_addr in this tree we need to make all
the writes to it got through appropriate helpers.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
 include/linux/etherdevice.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/include/linux/etherdevice.h b/include/linux/etherdevice.h
index 3cf546d2ffd1..76f7ff684cbf 100644
--- a/include/linux/etherdevice.h
+++ b/include/linux/etherdevice.h
@@ -269,8 +269,11 @@ static inline void eth_zero_addr(u8 *addr)
  */
 static inline void eth_hw_addr_random(struct net_device *dev)
 {
+	u8 addr[ETH_ALEN];
+
+	eth_random_addr(addr);
+	__dev_addr_set(dev, addr, ETH_ALEN);
 	dev->addr_assign_type = NET_ADDR_RANDOM;
-	eth_random_addr(dev->dev_addr);
 }
 
 /**
-- 
2.31.1


  parent reply	other threads:[~2021-10-13 20:44 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-13 20:44 [PATCH net-next 0/7] ethernet: more netdev->dev_addr write removals Jakub Kicinski
2021-10-13 20:44 ` [PATCH net-next 1/7] ethernet: constify references to netdev->dev_addr in drivers Jakub Kicinski
2021-10-14  5:36   ` kernel test robot
2021-10-14  6:15   ` kernel test robot
2021-10-13 20:44 ` Jakub Kicinski [this message]
2021-10-13 20:44 ` [PATCH net-next 3/7] ethernet: make use of eth_hw_addr_random() where appropriate Jakub Kicinski
2021-10-13 23:50   ` Linus Walleij
2021-10-13 20:44 ` [PATCH net-next 4/7] ethernet: manually convert memcpy(dev_addr,..., sizeof(addr)) Jakub Kicinski
2021-10-14  2:27   ` Florian Fainelli
2021-10-14  7:43   ` Petko Manolov
2021-10-14  8:14   ` Nicolas Ferre
2021-10-13 20:44 ` [PATCH net-next 5/7] ethernet: ibm/emac: use of_get_ethdev_address() to load dev_addr Jakub Kicinski
2021-10-13 20:44 ` [PATCH net-next 6/7] ethernet: replace netdev->dev_addr assignment loops Jakub Kicinski
2021-10-13 20:44 ` [PATCH net-next 7/7] ethernet: replace netdev->dev_addr 16bit writes Jakub Kicinski
2021-10-14  2:28   ` Florian Fainelli

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