Commit 62c71b45 authored Nov 20, 2017 by Jakub Kicinski Committed by Daniel Borkmann Nov 21, 2017

bpf: offload: ignore namespace moves



We are currently destroying the device offload state when device
moves to another net namespace.  This doesn't break with current
NFP code, because offload state is not used on program removal,
but it's not correct behaviour.

Ignore the device unregister notifications on namespace move.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

parent 479321e9

kernel/bpf/offload.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -174,6 +174,10 @@ static int bpf_offload_notification(struct notifier_block *notifier,

		switch (event) {
		case NETDEV_UNREGISTER:
		/* ignore namespace changes */
		if (netdev->reg_state != NETREG_UNREGISTERING)
		break;

		list_for_each_entry_safe(offload, tmp, &bpf_prog_offload_devs,
		offloads) {
		if (offload->netdev == netdev)

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