144 	__kernel_size_t kcmlen, tmp;  in cmsghdr_from_user_compat_to_kern()  local
150 	kcmlen = 0;  in cmsghdr_from_user_compat_to_kern()
163 		kcmlen += tmp;  in cmsghdr_from_user_compat_to_kern()
166 	if (kcmlen == 0)  in cmsghdr_from_user_compat_to_kern()
174 	if (kcmlen > stackbuf_size)  in cmsghdr_from_user_compat_to_kern()
175 		kcmsg_base = kcmsg = sock_kmalloc(sk, kcmlen, GFP_KERNEL);  in cmsghdr_from_user_compat_to_kern()
180 	memset(kcmsg, 0, kcmlen);  in cmsghdr_from_user_compat_to_kern()
189 		if ((char *)kcmsg_base + kcmlen - (char *)kcmsg < CMSG_ALIGN(tmp))  in cmsghdr_from_user_compat_to_kern()
209 	if ((char *)kcmsg - (char *)kcmsg_base != kcmlen)  in cmsghdr_from_user_compat_to_kern()
214 	kmsg->msg_controllen = kcmlen;  in cmsghdr_from_user_compat_to_kern()
221 		sock_kfree_s(sk, kcmsg_base, kcmlen);  in cmsghdr_from_user_compat_to_kern()