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| author | Björn Töpel <[email protected]> | 2020-05-20 21:20:49 +0200 |
|---|---|---|
| committer | Alexei Starovoitov <[email protected]> | 2020-05-21 17:31:26 -0700 |
| commit | 44ac082b30dc2a05a7e23ed7e17b5f9513873386 (patch) | |
| tree | c3a094687c7d6d0ebf5b5e437db42699deddea05 /tools/perf/scripts/python/intel-pt-events.py | |
| parent | dda18a5c0b75461d1ed228f80b59c67434b8d601 (diff) | |
xsk: Fix xsk_umem_xdp_frame_sz()
Calculating the "data_hard_end" for an XDP buffer coming from AF_XDP
zero-copy mode, the return value of xsk_umem_xdp_frame_sz() is added
to "data_hard_start".
Currently, the chunk size of the UMEM is returned by
xsk_umem_xdp_frame_sz(). This is not correct, if the fixed UMEM
headroom is non-zero. Fix this by returning the chunk_size without the
UMEM headroom.
Fixes: 2a637c5b1aaf ("xdp: For Intel AF_XDP drivers add XDP frame_sz")
Signed-off-by: Björn Töpel <[email protected]>
Signed-off-by: Alexei Starovoitov <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
Diffstat (limited to 'tools/perf/scripts/python/intel-pt-events.py')
0 files changed, 0 insertions, 0 deletions