linux/include
Willem de Bruijn 52cbd23a11 udp: fix skb_copy_and_csum_datagram with odd segment sizes
When iteratively computing a checksum with csum_block_add, track the
offset "pos" to correctly rotate in csum_block_add when offset is odd.

The open coded implementation of skb_copy_and_csum_datagram did this.
With the switch to __skb_datagram_iter calling csum_and_copy_to_iter,
pos was reinitialized to 0 on each call.

Bring back the pos by passing it along with the csum to the callback.

Changes v1->v2
  - pass csum value, instead of csump pointer (Alexander Duyck)

Link: https://lore.kernel.org/netdev/20210128152353.GB27281@optiplex/
Fixes: 950fcaecd5 ("datagram: consolidate datagram copy to iter helpers")
Reported-by: Oliver Graute <oliver.graute@gmail.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20210203192952.1849843-1-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-02-04 18:56:56 -08:00
..
acpi More power management updates for 5.11-rc1 2020-12-22 14:12:10 -08:00
asm-generic arm64: make atomic helpers __always_inline 2021-01-13 15:09:06 +00:00
clocksource
crypto
drm drm-misc-next for 5.11: 2020-12-15 10:21:48 +01:00
dt-bindings ASoC: dt-bindings: lpass: Fix and common up lpass dai ids 2021-01-20 16:46:44 +00:00
keys
kunit
kvm KVM: arm64: Replace KVM_ARM_PMU with HW_PERF_EVENTS 2021-01-04 16:50:16 +00:00
linux udp: fix skb_copy_and_csum_datagram with odd segment sizes 2021-02-04 18:56:56 -08:00
math-emu
media media: v4l: common: Fix naming of v4l2_get_link_rate 2021-01-07 15:47:52 +01:00
memory
misc
net udp: ipv4: manipulate network header of NATed UDP GRO fraglist 2021-02-01 20:02:16 -08:00
pcmcia
ras
rdma RDMA 5.11 pull request 2020-12-16 13:42:26 -08:00
scsi SCSI misc on 20201216 2020-12-16 13:34:31 -08:00
soc include/soc: remove headers for EZChip NPS 2021-01-05 12:59:41 -08:00
sound ALSA: pcm: One more dependency for hw constraints 2021-01-23 16:59:24 +01:00
target
trace for-linus-2021-01-24 2021-01-24 09:35:28 -08:00
uapi media fixes for v5.11-rc7 2021-02-01 11:15:57 -08:00
vdso
video
xen xen: Fix event channel callback via INTX/GSI 2021-01-13 16:12:00 +01:00