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| author | Daniel Borkmann <daniel@iogearbox.net> | 2023-10-07 00:06:50 +0200 |
|---|---|---|
| committer | Martin KaFai Lau <martin.lau@kernel.org> | 2023-10-06 17:11:20 -0700 |
| commit | edfa9af0a73ecc2000d7bb81d0b0fd3158cc9a65 (patch) | |
| tree | 2fa48698f2b0cfb93be08203381e12cc6b5c4c03 /include/linux/fpga/fpga-bridge.h | |
| parent | a4fe78386afb94780f8e6fcd10a67c4d4dfe4da8 (diff) | |
bpf: Handle bpf_mprog_query with NULL entry
Improve consistency for bpf_mprog_query() API and let the latter also handle
a NULL entry as can be the case for tcx. Instead of returning -ENOENT, we
copy a count of 0 and revision of 1 to user space, so that this can be fed
into a subsequent bpf_mprog_attach() call as expected_revision. A BPF self-
test as part of this series has been added to assert this case.
Suggested-by: Lorenz Bauer <lmb@isovalent.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/r/20231006220655.1653-2-daniel@iogearbox.net
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Diffstat (limited to 'include/linux/fpga/fpga-bridge.h')
0 files changed, 0 insertions, 0 deletions