bpf: Make BTF pointer type checking generic

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Perform BTF type checks if the register we're working on contains a BTF
pointer, rather than if the argument is for a BTF pointer. This is easier
to understand, and allows removing the code from the arg_type checking
section of the function.

Signed-off-by: Lorenz Bauer <lmb@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20200921121227.255763-6-lmb@cloudflare.com

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Lorenz Bauer 2020-09-21 13:12:21 +01:00 • committed by Alexei Starovoitov

parent 9436ef6e86

commit d7b9454a4f

1 changed files with 20 additions and 18 deletions

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kernel/bpf/verifier.c

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