bpf: Add a __btf_get_by_fd helper

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Add a new helper to get a pointer to a struct btf from a file
descriptor. This helper doesn't increase a refcnt. Add a comment
explaining this and pointing to a corresponding function which
does take a reference.

Signed-off-by: Anton Protopopov <aspsk@isovalent.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20241213130934.1087929-2-aspsk@isovalent.com

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Anton Protopopov 2024-12-13 13:09:28 +00:00 • committed by Andrii Nakryiko

parent 6a10d2d361

commit 4e885fab71

2 changed files with 20 additions and 8 deletions

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17

include/linux/bpf.h

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11

kernel/bpf/btf.c

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