nfp: bpf: update fixup function for BPF-to-BPF calls support

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Relocation for targets of BPF-to-BPF calls are required at the end of
translation. Update the nfp_fixup_branches() function in that regard.

When checking that the last instruction of each bloc is a branch, we
must account for the length of the instructions required to pop the
return address from the stack.

Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Jiong Wang <jiong.wang@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

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Quentin Monnet 2018-10-07 12:56:54 +01:00 • committed by Daniel Borkmann

parent fb19816541

commit bdf4c66faf

2 changed files with 24 additions and 3 deletions

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25

drivers/net/ethernet/netronome/nfp/bpf/jit.c

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2

drivers/net/ethernet/netronome/nfp/bpf/main.h

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