bpf: call verify_insn from its callback in struct bpf_offload_dev

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We intend to remove the dev_ops in struct bpf_prog_offload, and to only
keep the ops in struct bpf_offload_dev instead, which is accessible from
more locations for passing function pointers.

But dev_ops is used for calling the verify_insn hook. Switch to the
newly added ops in struct bpf_prog_offload instead.

To avoid table lookups for each eBPF instruction to verify, we remember
the offdev attached to a netdev and modify bpf_offload_find_netdev() to
avoid performing more than once a lookup for a given offload object.

Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Quentin Monnet 2018-11-09 13:03:26 +00:00 • committed by Alexei Starovoitov

parent 1385d755cf

commit 341b3e7b7b

2 changed files with 4 additions and 1 deletions

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1

include/linux/bpf.h

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4

kernel/bpf/offload.c

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