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| author |   Philo Lu <lulie@linux.alibaba.com> | 2024-04-05 10:55:35 +0800 |
|---|---|---|
| committer |   Alexei Starovoitov <ast@kernel.org> | 2024-04-05 10:31:17 -0700 |
| commit | 9d482da9e17a4ddd5563428f74302a36b2610306 (patch) | |
| tree | daa373372a1c4edf856de49c047898273a7141f5 /net/core | |
| parent | bpf: store both map ptr and state in bpf_insn_aux_data (diff) | |
| download | wireguard-linux-9d482da9e17a4ddd5563428f74302a36b2610306.tar.xz wireguard-linux-9d482da9e17a4ddd5563428f74302a36b2610306.zip | |
bpf: allow invoking bpf_for_each_map_elem with different maps
Taking different maps within a single bpf_for_each_map_elem call is not
allowed before, because from the second map,
bpf_insn_aux_data->map_ptr_state will be marked as *poison*. In fact
both map_ptr and state are needed to support this use case: map_ptr is
used by set_map_elem_callback_state() while poison state is needed to
determine whether to use direct call.
Signed-off-by: Philo Lu <lulie@linux.alibaba.com>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/r/20240405025536.18113-3-lulie@linux.alibaba.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'net/core')
0 files changed, 0 insertions, 0 deletions