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(parent: 5ee15c1) | patch
net: thunderx: don't allow jumbo frames with XDP
authorMatteo Croce <mcroce@redhat.com>
Thu, 11 Apr 2019 10:26:33 +0000 (12:26 +0200)
committerDavid S. Miller <davem@davemloft.net>
Thu, 11 Apr 2019 18:10:34 +0000 (11:10 -0700)
commit1f227d16083b2e280b7dde4ca78883d75593f2fd
tree607673dfc7cbfa106a6ae87456502a475c9beee8tree | snapshot
parent5ee15c101f29e0093ffb5448773ccbc786eb313bcommit | diff
net: thunderx: don't allow jumbo frames with XDP

The thunderx driver forbids to load an eBPF program if the MTU is too high,
but this can be circumvented by loading the eBPF, then raising the MTU.

Fix this by limiting the MTU if an eBPF program is already loaded.

Fixes: 05c773f52b96e ("net: thunderx: Add basic XDP support")
Signed-off-by: Matteo Croce <mcroce@redhat.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/cavium/thunder/nicvf_main.c diff | blob | history
John Crispins staging tree