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| author |   Martin KaFai Lau <kafai@fb.com> | 2020-10-19 12:42:25 -0700 |
|---|---|---|
| committer |   Alexei Starovoitov <ast@kernel.org> | 2020-10-19 15:57:42 -0700 |
| commit | 8568c3cefd5143fa0dc09f90e1bc9dc8905292f4 (patch) | |
| tree | 90ff2079a7ea6260ffe6399e1d00f457cabea8cf /scripts/bpf_helpers_doc.py | |
| parent | bpf: selftest: Ensure the return value of bpf_skc_to helpers must be checked (diff) | |
| download | wireguard-linux-8568c3cefd5143fa0dc09f90e1bc9dc8905292f4.tar.xz wireguard-linux-8568c3cefd5143fa0dc09f90e1bc9dc8905292f4.zip | |
bpf: selftest: Ensure the return value of the bpf_per_cpu_ptr() must be checked
This patch tests all pointers returned by bpf_per_cpu_ptr() must be
tested for NULL first before it can be accessed.
This patch adds a subtest "null_check", so it moves the ".data..percpu"
existence check to the very beginning and before doing any subtest.
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20201019194225.1051596-1-kafai@fb.com
Diffstat (limited to 'scripts/bpf_helpers_doc.py')
0 files changed, 0 insertions, 0 deletions