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| author | Hao Luo <haoluo@google.com> | 2020-09-29 16:50:47 -0700 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2020-10-02 15:00:49 -0700 |
| commit | eaa6bcb71ef6ed3dc18fc525ee7e293b06b4882b (patch) | |
| tree | f942e4cd04a29b8f50ec5a57db535da79fcdd068 /tools/pcmcia | |
| parent | 2c2f6abeff1322a61f5ad7ce0ecccabf53e4fad5 (diff) | |
| download | linux-eaa6bcb71ef6ed3dc18fc525ee7e293b06b4882b.tar.gz linux-eaa6bcb71ef6ed3dc18fc525ee7e293b06b4882b.tar.bz2 linux-eaa6bcb71ef6ed3dc18fc525ee7e293b06b4882b.zip | |
bpf: Introduce bpf_per_cpu_ptr()
Add bpf_per_cpu_ptr() to help bpf programs access percpu vars.
bpf_per_cpu_ptr() has the same semantic as per_cpu_ptr() in the kernel
except that it may return NULL. This happens when the cpu parameter is
out of range. So the caller must check the returned value.
Signed-off-by: Hao Luo <haoluo@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200929235049.2533242-5-haoluo@google.com
Diffstat (limited to 'tools/pcmcia')
0 files changed, 0 insertions, 0 deletions