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| author | Andrii Nakryiko <[email protected]> | 2023-05-09 06:55:02 +0000 |
|---|---|---|
| committer | Alexei Starovoitov <[email protected]> | 2023-05-12 19:05:21 +0000 |
| commit | bdeeed3498c7871c17465bb4f11d1bc67f9098af (patch) | |
| tree | b221e4b559bc7a642dd03266074cdb91ecdabbd7 /drivers/net/ethernet/intel/igc/igc_main.c | |
| parent | bpf: Address KCSAN report on bpf_lru_list (diff) | |
| download | kernel-bdeeed3498c7871c17465bb4f11d1bc67f9098af.tar.gz kernel-bdeeed3498c7871c17465bb4f11d1bc67f9098af.zip | |
libbpf: fix offsetof() and container_of() to work with CO-RE
It seems like __builtin_offset() doesn't preserve CO-RE field
relocations properly. So if offsetof() macro is defined through
__builtin_offset(), CO-RE-enabled BPF code using container_of() will be
subtly and silently broken.
To avoid this problem, redefine offsetof() and container_of() in the
form that works with CO-RE relocations more reliably.
Fixes: 5fbc220862fc ("tools/libpf: Add offsetof/container_of macro in bpf_helpers.h")
Reported-by: Lennart Poettering <[email protected]>
Signed-off-by: Andrii Nakryiko <[email protected]>
Acked-by: Yonghong Song <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Alexei Starovoitov <[email protected]>
Diffstat (limited to 'drivers/net/ethernet/intel/igc/igc_main.c')
0 files changed, 0 insertions, 0 deletions