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050569fc83
When ndo_get_phys_port_name() for the CPU port was added we introduced
an early check for when the DSA master network device in
dsa_master_ndo_setup() already implements ndo_get_phys_port_name(). When
we perform the teardown operation in dsa_master_ndo_teardown() we would
not be checking that cpu_dp->orig_ndo_ops was successfully allocated and
non-NULL initialized.
With network device drivers such as virtio_net, this leads to a NPD as
soon as the DSA switch hanging off of it gets torn down because we are
now assigning the virtio_net device's netdev_ops a NULL pointer.
Fixes:
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.. | ||
dsa.c | ||
dsa2.c | ||
dsa_priv.h | ||
Kconfig | ||
Makefile | ||
master.c | ||
port.c | ||
slave.c | ||
switch.c | ||
tag_8021q.c | ||
tag_ar9331.c | ||
tag_brcm.c | ||
tag_dsa.c | ||
tag_edsa.c | ||
tag_gswip.c | ||
tag_ksz.c | ||
tag_lan9303.c | ||
tag_mtk.c | ||
tag_ocelot.c | ||
tag_qca.c | ||
tag_sja1105.c | ||
tag_trailer.c |