[PATCH] net/bonding: fix MAC address propagation in 802.3ad mode

[Stephen Hemminger]

On Wed, 5 Nov 2025 20:01:35 +0200
Shani Peretz <shperetz at nvidia.com> wrote:

> When changing the MAC address of a bonding device in 802.3ad mode,
> the new MAC was not propagated to the physical member NIC.
> This caused the physical NIC to drop all data packets sent to the
> new MAC address, resulting in connectivity loss.
> 
> It happens because the MAC update function only updated the
> LACP layer (actor.system) but not the physical NIC hardware MAC
> addresses.
> 
> This fix adds a call to rte_eth_dev_default_mac_addr_set() to update
> the hardware MAC on each member port.
> 
> Bugzilla ID: 1158
> Fixes: 46fb43683679 ("bond: add mode 4")
> Cc: stable at dpdk.org
> 
> Signed-off-by: Shani Peretz <shperetz at nvidia.com>
> ---

Queued to next-net.
Modified patch to put check on oneline since max line length in DPDK is 100.