From: Daniel Borkmann Date: Tue, 11 Jun 2019 08:36:03 +0000 (+0200) Subject: Merge branch 'bpf-libbpf-num-cpus' X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=5e2ac390fbd08b2a462db66cef2663e4db0d5191;p=openwrt%2Fstaging%2Fblogic.git Merge branch 'bpf-libbpf-num-cpus' Hechao Li says: ==================== 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. v2: Save errno before calling pr_warning in case it is changed. v3: Make sure libbpf_num_possible_cpus never returns 0 so that user only has to check if ret value < 0. v4: Fix error code when reading 0 bytes from possible CPU file. v5: Fix selftests compliation issue. v6: Split commit to reuse libbpf_num_possible_cpus() into two commits: One commit to remove bpf_util.h from test BPF C programs. One commit to reuse libbpf_num_possible_cpus() in bpftools and bpf_util.h. ==================== Signed-off-by: Daniel Borkmann --- 5e2ac390fbd08b2a462db66cef2663e4db0d5191