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Date: Mon, 10 Jan 2022 12:39:25 +0100 From: Oliver Neukum <oneukum@...e.com> To: Aaron Ma <aaron.ma@...onical.com>, kuba@...nel.org, henning.schild@...mens.com, linux-usb@...r.kernel.org, netdev@...r.kernel.org, linux-kernel@...r.kernel.org CC: davem@...emloft.net, hayeswang@...ltek.com, tiwai@...e.de Subject: Re: [PATCH 1/3 v3] net: usb: r8152: Check used MAC passthrough address On 05.01.22 16:14, Aaron Ma wrote: > When plugin multiple r8152 ethernet dongles to Lenovo Docks > or USB hub, MAC passthrough address from BIOS should be > checked if it had been used to avoid using on other dongles. > > Currently builtin r8152 on Dock still can't be identified. > First detected r8152 will use the MAC passthrough address. > > v2: > Skip builtin PCI MAC address which is share MAC address with > passthrough MAC. > Check thunderbolt based ethernet. I am sorry and I may be dense, why are you comparing MACs? The pass-through is done per machine. All you nee is a global flag, or if you want to be even more formal, a reference count. Regards Oliver
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