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ff91e1b684
mirror_ubuntu-kernels/net/dsa
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Vladimir Oltean ff91e1b684 net: dsa: fix incorrect function pointer check for MRP ring roles 
The cross-chip notifier boilerplate code meant to check the presence of
ds->ops->port_mrp_add_ring_role before calling it, but checked
ds->ops->port_mrp_add instead, before calling
ds->ops->port_mrp_add_ring_role.

Therefore, a driver which implements one operation but not the other
would trigger a NULL pointer dereference.

There isn't any such driver in DSA yet, so there is no reason to
backport the change. Issue found through code inspection.

Cc: Horatiu Vultur <horatiu.vultur@microchip.com>
Fixes: c595c4330d ("net: dsa: add MRP support")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-05 15:04:50 +00:00
..
dsa2.c net: dsa: make dsa_switch :: num_ports an unsigned int 2022-01-05 14:46:23 +00:00
dsa_priv.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2021-12-31 14:35:40 +00:00
dsa.c devlink: Simplify devlink resources unregister call 2021-11-30 12:23:32 +00:00
Kconfig net: dsa: tag_rtl8_4: add realtek 8 byte protocol 4 tag 2021-10-18 14:02:56 +01:00
Makefile net: dsa: tag_rtl8_4: add realtek 8 byte protocol 4 tag 2021-10-18 14:02:56 +01:00
master.c dev_ioctl: split out ndo_eth_ioctl 2021-07-27 20:11:45 +01:00
port.c net: dsa: mark DSA phylink as legacy_pre_march2020 2021-12-09 11:21:03 -08:00
slave.c net: dsa: keep the bridge_dev and bridge_num as part of the same structure 2021-12-08 14:31:16 -08:00
switch.c net: dsa: fix incorrect function pointer check for MRP ring roles 2022-01-05 15:04:50 +00:00
tag_8021q.c net: dsa: keep the bridge_dev and bridge_num as part of the same structure 2021-12-08 14:31:16 -08:00
tag_ar9331.c net: dsa: remove the struct packet_type argument from dsa_device_ops::rcv() 2021-08-02 15:13:15 +01:00
tag_brcm.c net: dsa: create a helper for locating EtherType DSA headers on RX 2021-08-11 14:44:58 +01:00
tag_dsa.c net: dsa: hide dp->bridge_dev and dp->bridge_num in the core behind helpers 2021-12-08 14:31:15 -08:00
tag_gswip.c net: dsa: remove the struct packet_type argument from dsa_device_ops::rcv() 2021-08-02 15:13:15 +01:00
tag_hellcreek.c net: dsa: remove the struct packet_type argument from dsa_device_ops::rcv() 2021-08-02 15:13:15 +01:00
tag_ksz.c net/dsa/tag_ksz.c: remove superfluous headers 2021-09-29 11:38:21 +01:00
tag_lan9303.c net: dsa: create a helper for locating EtherType DSA headers on TX 2021-08-11 14:44:58 +01:00
tag_mtk.c net: dsa: create a helper for locating EtherType DSA headers on TX 2021-08-11 14:44:58 +01:00
tag_ocelot_8021q.c net: dsa: make tagging protocols connect to individual switches from a tree 2021-12-14 12:45:16 +00:00
tag_ocelot.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-12-23 16:09:58 -08:00
tag_qca.c net: dsa: create a helper for locating EtherType DSA headers on TX 2021-08-11 14:44:58 +01:00
tag_rtl4_a.c net: dsa: tag_rtl4_a: Drop bit 9 from egress frames 2021-09-14 19:34:03 -07:00
tag_rtl8_4.c net: dsa: tag_rtl8_4: add realtek 8 byte protocol 4 tag 2021-10-18 14:02:56 +01:00
tag_sja1105.c net: dsa: make tagging protocols connect to individual switches from a tree 2021-12-14 12:45:16 +00:00
tag_trailer.c net: dsa: remove the struct packet_type argument from dsa_device_ops::rcv() 2021-08-02 15:13:15 +01:00
tag_xrs700x.c net: dsa: remove the struct packet_type argument from dsa_device_ops::rcv() 2021-08-02 15:13:15 +01:00