NL_MMAP_MSG_ALIGN  192 include/uapi/linux/netlink.h #define NL_MMAP_HDRLEN			NL_MMAP_MSG_ALIGN(sizeof(struct nl_mmap_hdr))
NL_MMAP_MSG_ALIGN  192 tools/include/uapi/linux/netlink.h #define NL_MMAP_HDRLEN			NL_MMAP_MSG_ALIGN(sizeof(struct nl_mmap_hdr))