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abd6360591
linux/net/batman-adv
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Matthias Schiffer abd6360591 batman-adv: fix packet checksum in receive path 
eth_type_trans() internally calls skb_pull(), which does not adjust the
skb checksum; skb_postpull_rcsum() is necessary to avoid log spam of the
form "bat0: hw csum failure" when packets with CHECKSUM_COMPLETE are
received.

Note that in usual setups, packets don't reach batman-adv with
CHECKSUM_COMPLETE (I assume NICs bail out of checksumming when they see
batadv's ethtype?), which is why the log messages do not occur on every
system using batman-adv. I could reproduce this issue by stacking
batman-adv on top of a VXLAN interface.

Fixes: c6c8fea297 ("net: Add batman-adv meshing protocol")
Tested-by: Maximilian Wilhelm <max@sdn.clinic>
Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2018-02-25 20:00:44 +01:00
..
bat_algo.c batman-adv: Add kernel-doc to externally visible functions 2017-12-15 17:29:24 +01:00
bat_algo.h batman-adv: Add SPDX license identifier above copyright header 2017-12-15 17:22:45 +01:00
bat_iv_ogm.c batman-adv: Convert packet.h to uapi header 2017-12-21 15:35:53 -05:00
bat_iv_ogm.h batman-adv: Add SPDX license identifier above copyright header 2017-12-15 17:22:45 +01:00
bat_v_elp.c batman-adv: Convert packet.h to uapi header 2017-12-21 15:35:53 -05:00
bat_v_elp.h batman-adv: Add SPDX license identifier above copyright header 2017-12-15 17:22:45 +01:00
bat_v_ogm.c batman-adv: Convert packet.h to uapi header 2017-12-21 15:35:53 -05:00
bat_v_ogm.h batman-adv: Add SPDX license identifier above copyright header 2017-12-15 17:22:45 +01:00
bat_v.c batman-adv: Convert packet.h to uapi header 2017-12-21 15:35:53 -05:00
bat_v.h batman-adv: Add SPDX license identifier above copyright header 2017-12-15 17:22:45 +01:00
bitarray.c batman-adv: Use parentheses in function kernel-doc 2017-12-15 17:29:20 +01:00
bitarray.h batman-adv: Add kernel-doc to functions in headers 2017-12-15 17:29:23 +01:00
bridge_loop_avoidance.c batman-adv: Convert packet.h to uapi header 2017-12-21 15:35:53 -05:00
bridge_loop_avoidance.h batman-adv: Use parentheses in function kernel-doc 2017-12-15 17:29:20 +01:00
debugfs.c batman-adv: Add kernel-doc to externally visible functions 2017-12-15 17:29:24 +01:00
debugfs.h batman-adv: Add SPDX license identifier above copyright header 2017-12-15 17:22:45 +01:00
distributed-arp-table.c batman-adv: Use parentheses in function kernel-doc 2017-12-15 17:29:20 +01:00
distributed-arp-table.h batman-adv: Convert packet.h to uapi header 2017-12-21 15:35:53 -05:00
fragmentation.c batman-adv: Convert packet.h to uapi header 2017-12-21 15:35:53 -05:00
fragmentation.h batman-adv: Use parentheses in function kernel-doc 2017-12-15 17:29:20 +01:00
gateway_client.c batman-adv: Convert packet.h to uapi header 2017-12-21 15:35:53 -05:00
gateway_client.h batman-adv: Add SPDX license identifier above copyright header 2017-12-15 17:22:45 +01:00
gateway_common.c batman-adv: Convert packet.h to uapi header 2017-12-21 15:35:53 -05:00
gateway_common.h batman-adv: Use inline kernel-doc for enum/struct 2017-12-15 17:29:20 +01:00
hard-interface.c batman-adv: Convert packet.h to uapi header 2017-12-21 15:35:53 -05:00
hard-interface.h batman-adv: Add kernel-doc to functions in headers 2017-12-15 17:29:23 +01:00
hash.c batman-adv: Add kernel-doc to externally visible functions 2017-12-15 17:29:24 +01:00
hash.h batman-adv: Add kernel-doc to functions in headers 2017-12-15 17:29:23 +01:00
icmp_socket.c vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
icmp_socket.h batman-adv: Add SPDX license identifier above copyright header 2017-12-15 17:22:45 +01:00
Kconfig batman-adv: Add license header to Kconfig 2017-12-15 17:24:08 +01:00
log.c vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
log.h batman-adv: Add kernel-doc to functions in headers 2017-12-15 17:29:23 +01:00
main.c batman-adv: Convert packet.h to uapi header 2017-12-21 15:35:53 -05:00
main.h batman-adv: Convert packet.h to uapi header 2017-12-21 15:35:53 -05:00
Makefile batman-adv: Add SPDX license identifier above copyright header 2017-12-15 17:22:45 +01:00
multicast.c batman-adv: Convert packet.h to uapi header 2017-12-21 15:35:53 -05:00
multicast.h batman-adv: Use inline kernel-doc for enum/struct 2017-12-15 17:29:20 +01:00
netlink.c batman-adv: Convert packet.h to uapi header 2017-12-21 15:35:53 -05:00
netlink.h batman-adv: Add SPDX license identifier above copyright header 2017-12-15 17:22:45 +01:00
network-coding.c batman-adv: Convert packet.h to uapi header 2017-12-21 15:35:53 -05:00
network-coding.h batman-adv: Add SPDX license identifier above copyright header 2017-12-15 17:22:45 +01:00
originator.c batman-adv: Add kernel-doc to externally visible functions 2017-12-15 17:29:24 +01:00
originator.h batman-adv: Add kernel-doc to functions in headers 2017-12-15 17:29:23 +01:00
routing.c batman-adv: Convert packet.h to uapi header 2017-12-21 15:35:53 -05:00
routing.h batman-adv: Add SPDX license identifier above copyright header 2017-12-15 17:22:45 +01:00
send.c batman-adv: Add kernel-doc to externally visible functions 2017-12-15 17:29:24 +01:00
send.h batman-adv: Convert packet.h to uapi header 2017-12-21 15:35:53 -05:00
soft-interface.c batman-adv: fix packet checksum in receive path 2018-02-25 20:00:44 +01:00
soft-interface.h batman-adv: Add SPDX license identifier above copyright header 2017-12-15 17:22:45 +01:00
sysfs.c batman-adv: Convert packet.h to uapi header 2017-12-21 15:35:53 -05:00
sysfs.h batman-adv: Add kernel-doc to structs in headers 2017-12-15 17:29:22 +01:00
tp_meter.c batman-adv: Convert packet.h to uapi header 2017-12-21 15:35:53 -05:00
tp_meter.h batman-adv: Add SPDX license identifier above copyright header 2017-12-15 17:22:45 +01:00
translation-table.c batman-adv: Convert packet.h to uapi header 2017-12-21 15:35:53 -05:00
translation-table.h batman-adv: Add SPDX license identifier above copyright header 2017-12-15 17:22:45 +01:00
tvlv.c batman-adv: Convert packet.h to uapi header 2017-12-21 15:35:53 -05:00
tvlv.h batman-adv: Add SPDX license identifier above copyright header 2017-12-15 17:22:45 +01:00
types.h batman-adv: Convert packet.h to uapi header 2017-12-21 15:35:53 -05:00