bpf: Make context access check generic

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Always check context access if the register we're operating on is
PTR_TO_CTX, rather than relying on ARG_PTR_TO_CTX. This allows
simplifying 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/20200921121227.255763-8-lmb@cloudflare.com

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Lorenz Bauer 2020-09-21 13:12:23 +01:00 • committed by Alexei Starovoitov

parent 02f7c9585d

commit feec704016

1 changed files with 4 additions and 3 deletions

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kernel/bpf/verifier.c

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