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Toke Høiland-Jørgensen ba452c9e99 bpf: Fix bpf_redirect_neigh helper api to support supplying nexthop 
Based on the discussion in [0], update the bpf_redirect_neigh() helper to
accept an optional parameter specifying the nexthop information. This makes
it possible to combine bpf_fib_lookup() and bpf_redirect_neigh() without
incurring a duplicate FIB lookup - since the FIB lookup helper will return
the nexthop information even if no neighbour is present, this can simply
be passed on to bpf_redirect_neigh() if bpf_fib_lookup() returns
BPF_FIB_LKUP_RET_NO_NEIGH. Thus fix & extend it before helper API is frozen.

  [0] https://lore.kernel.org/bpf/393e17fc-d187-3a8d-2f0d-a627c7c63fca@iogearbox.net/

Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/bpf/160322915615.32199.1187570224032024535.stgit@toke.dk
2020-10-22 01:28:54 +02:00
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accounting
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arch
parisc: Add MAP_UNINITIALIZED define
2020-10-15 08:10:39 +02:00
bootconfig
Merge tag 'trace-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
2020-10-15 15:51:28 -07:00
bpf
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2020-10-05 18:40:01 -07:00
build
tools, bpf/build: Cleanup feature files on make clean
2020-08-28 14:04:27 +02:00
cgroup
blk-iocost: update iocost_monitor.py
2020-09-01 19:38:33 -06:00
debugging
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edid
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firewire
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firmware
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gpio
tools: gpio: add debounce support to gpio-event-mon
2020-09-30 10:57:30 +02:00
hv
tools: hv: change http to https in hv_kvp_daemon.c
2020-07-06 10:46:23 +00:00
iio
iio: add IIO_MOD_O2 modifier
2020-08-22 10:53:12 +01:00
include
bpf: Fix bpf_redirect_neigh helper api to support supplying nexthop
2020-10-22 01:28:54 +02:00
io_uring
tools/io_uring: fix compile breakage
2020-09-21 07:50:58 -06:00
kvm/kvm_stat
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laptop
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leds
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lib
Merge tag 'net-next-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-10-15 18:42:13 -07:00
memory-model
tools/memory-model: Expand the cheatsheet.txt notion of relaxed
2020-09-04 11:58:15 -07:00
nfsd
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objtool
Merge tag 'objtool-core-2020-10-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-10-14 10:13:37 -07:00
pci
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pcmcia
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perf
Merge tag 'net-next-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-10-15 18:42:13 -07:00
power
Merge tag 'linux-kselftest-fixes-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
2020-10-14 14:23:51 -07:00
scripts
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spi
spi: tools: Make default_tx/rx and input_tx static
2020-06-11 16:27:24 +01:00
testing
bpf: selftest: Ensure the return value of the bpf_per_cpu_ptr() must be checked
2020-10-19 15:57:42 -07:00
thermal/tmon
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time
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usb
tools: usb: move to tools buildsystem
2020-08-19 14:11:44 +02:00
virtio
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
2020-08-11 14:34:17 -07:00
vm
mm: Add PG_arch_2 page flag
2020-09-04 12:46:06 +01:00
wmi
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Makefile
bpf: Compile resolve_btfids tool at kernel compilation start
2020-07-13 10:42:02 -07:00