Getting number of possible CPUs is commonly used for per-CPU BPF maps and perf_event_maps. Add a new API libbpf_num_possible_cpus() that helps user with per-CPU related operations and remove duplicate implementations in bpftool and selftests.
Hechao Li (2): bpf: add a new API libbpf_num_possible_cpus() bpf: use libbpf_num_possible_cpus in bpftool and selftests tools/bpf/bpftool/common.c | 53 +++--------------------- tools/lib/bpf/libbpf.c | 57 ++++++++++++++++++++++++++ tools/lib/bpf/libbpf.h | 16 ++++++++ tools/lib/bpf/libbpf.map | 1 + tools/testing/selftests/bpf/bpf_util.h | 37 +++-------------- 5 files changed, 84 insertions(+), 80 deletions(-) -- 2.17.1
