bpf: Tidy up verifier check_func_arg()

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[ Upstream commit 8ab4cdcf03 ]

This patch does two things:

1. For matching against the arg type, the match should be against the
base type of the arg type, since the arg type can have different
bpf_type_flags set on it.

2. Uses switch casing to improve readability + efficiency.

Signed-off-by: Joanne Koong <joannelkoong@gmail.com>
Acked-by: Hao Luo <haoluo@google.com>
Link: https://lore.kernel.org/r/20220712210603.123791-1-joannelkoong@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Joanne Koong 2022-07-12 14:06:03 -07:00 • committed by Greg Kroah-Hartman

parent 840fbb6845

commit 10608641b0

1 changed files with 38 additions and 28 deletions

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kernel/bpf/verifier.c

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