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Message-ID: <20221229185120.20f43a1b@kernel.org>
Date: Thu, 29 Dec 2022 18:51:20 -0800
From: Jakub Kicinski <kuba@...nel.org>
To: Jason Wang <jasowang@...hat.com>
Cc: "Michael S. Tsirkin" <mst@...hat.com>, davem@...emloft.net,
edumazet@...gle.com, pabeni@...hat.com,
virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org,
linux-kernel@...r.kernel.org, maxime.coquelin@...hat.com,
alvaro.karsz@...id-run.com, eperezma@...hat.com
Subject: Re: [PATCH 1/4] virtio-net: convert rx mode setting to use
workqueue
On Tue, 27 Dec 2022 17:06:10 +0800 Jason Wang wrote:
> > Hmm so user tells us to e.g enable promisc. We report completion
> > but card is still dropping packets. I think this
> > has a chance to break some setups.
>
> I think all those filters are best efforts, am I wrong?
Are the flags protected by the addr lock which needs BH, tho?
Taking netif_addr_lock_bh() to look at dev->flags seems a bit
surprising to me.
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