104 #define CMSG_COMPAT_OK(ucmlen, ucmsg, mhdr) \  argument
108 	  ((char *)(ucmsg) - (char *)(mhdr)->msg_control)))
127 	struct compat_cmsghdr __user *ucmsg;  in cmsghdr_from_user_compat_to_kern()  local
138 	ucmsg = CMSG_COMPAT_FIRSTHDR(kmsg);  in cmsghdr_from_user_compat_to_kern()
139 	while (ucmsg != NULL) {  in cmsghdr_from_user_compat_to_kern()
140 		if (get_user(ucmlen, &ucmsg->cmsg_len))  in cmsghdr_from_user_compat_to_kern()
144 		if (!CMSG_COMPAT_OK(ucmlen, ucmsg, kmsg))  in cmsghdr_from_user_compat_to_kern()
147 		tmp = ((ucmlen - sizeof(*ucmsg)) + sizeof(struct cmsghdr));  in cmsghdr_from_user_compat_to_kern()
150 		ucmsg = cmsg_compat_nxthdr(kmsg, ucmsg, ucmlen);  in cmsghdr_from_user_compat_to_kern()
167 	ucmsg = CMSG_COMPAT_FIRSTHDR(kmsg);  in cmsghdr_from_user_compat_to_kern()
168 	while (ucmsg != NULL) {  in cmsghdr_from_user_compat_to_kern()
169 		if (__get_user(ucmlen, &ucmsg->cmsg_len))  in cmsghdr_from_user_compat_to_kern()
171 		if (!CMSG_COMPAT_OK(ucmlen, ucmsg, kmsg))  in cmsghdr_from_user_compat_to_kern()
173 		tmp = ((ucmlen - sizeof(*ucmsg)) + sizeof(struct cmsghdr));  in cmsghdr_from_user_compat_to_kern()
178 		if (__get_user(kcmsg->cmsg_level, &ucmsg->cmsg_level) ||  in cmsghdr_from_user_compat_to_kern()
179 		    __get_user(kcmsg->cmsg_type, &ucmsg->cmsg_type) ||  in cmsghdr_from_user_compat_to_kern()
181 				   CMSG_COMPAT_DATA(ucmsg),  in cmsghdr_from_user_compat_to_kern()
182 				   (ucmlen - sizeof(*ucmsg))))  in cmsghdr_from_user_compat_to_kern()
187 		ucmsg = cmsg_compat_nxthdr(kmsg, ucmsg, ucmlen);  in cmsghdr_from_user_compat_to_kern()