On Mon, Feb 1, 2021 at 7:40 PM Jakub Kicinski wrote:
>
> On Sat, 30 Jan 2021 18:27:55 -0800 Cong Wang wrote:
> > From: Cong Wang
> >
> > dev_ifsioc_locked() is called with only RCU read lock, so when
> > there is a parallel writer changing the mac address, it could
> > get a partially updated mac
On Sat, 30 Jan 2021 18:27:55 -0800 Cong Wang wrote:
> From: Cong Wang
>
> dev_ifsioc_locked() is called with only RCU read lock, so when
> there is a parallel writer changing the mac address, it could
> get a partially updated mac address, as shown below:
>
> Thread 1 Thread
From: Cong Wang
dev_ifsioc_locked() is called with only RCU read lock, so when
there is a parallel writer changing the mac address, it could
get a partially updated mac address, as shown below:
Thread 1Thread 2
// eth_commit_mac_addr_change()
memcpy(dev->dev_addr, addr->s
