bpf/docs: Document how nested trusted fields may be defined

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A prior change defined a new BTF_TYPE_SAFE_NESTED macro in the verifier
which allows developers to specify when a pointee field in a struct type
should inherit its parent pointer's trusted status. This patch updates
the kfuncs documentation to specify this macro and how it can be used.

Signed-off-by: David Vernet <void@manifault.com>
Link: https://lore.kernel.org/r/20230125143816.721952-7-void@manifault.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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David Vernet 2023-01-25 08:38:15 -06:00 • committed by Alexei Starovoitov

parent bdbda39584

commit d94cbde218

1 changed files with 21 additions and 1 deletions

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Documentation/bpf/kfuncs.rst

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