This series improves error propagation in cpumap and adds selftests that
cover the failure cases.
Currently, failures returned from __cpu_map_entry_alloc() are ignored
and always converted to -ENOMEM by cpu_map_update_elem(). This series
ensures the correct error propagation and adds selftests.
Changes:
v2:
- send to bpf-next, not to bpf
- drop Fixes: tag
v1: https://lore.kernel.org/bpf/[email protected]/
Kohei Enju (2):
bpf: cpumap: propagate underlying error in cpu_map_update_elem()
selftests/bpf: add tests for attaching invalid fd
kernel/bpf/cpumap.c | 21 ++++++++++++-------
.../bpf/prog_tests/xdp_cpumap_attach.c | 19 +++++++++++++++--
2 files changed, 30 insertions(+), 10 deletions(-)
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2.51.0
