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Mina Almasry 73b3fc67a4 net: devmem: document that bind-tx is unprivileged by design
Unlike bind-rx, which configures shared NIC RX queues to steer incoming
traffic into the caller's dmabuf and requires CAP_NET_ADMIN
(uns-admin-perm), bind-tx only DMA-maps the caller's dmabuf so the caller
can transmit from it on their own sockets without affecting other traffic
or device configuration.

Add a comment in netdev.yaml and above netdev_nl_bind_tx_doit() to make it
explicit that NETDEV_CMD_BIND_TX is unprivileged by design.

Signed-off-by: Mina Almasry <[email protected]>
Acked-by: Stanislav Fomichev <[email protected]>
Acked-by: Daniel Borkmann <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
2026-09-22 18:40:15 -07:00
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