Function sys_bpf

dpdk/drivers/net/tap/tap_bpf_api.c:89–93

* Call BPF system call * * @param[in] cmd * BPF command for program loading, map creation, map entry update, etc * * @param[in] attr * System call attributes relevant to system call command * * @param[in] size * size of attr parameter * * @return * -1 if BPF system call failed, 0 otherwise */

 *   -1 if BPF system call failed, 0 otherwise
 */
static inline int sys_bpf(enum bpf_cmd cmd, union bpf_attr *attr,
			unsigned int size)
{
	return syscall(__NR_bpf, cmd, attr, size);
}

/**
 * Load BPF instructions to kernel