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/Linux-v6.1/net/
Dcompat.c118 #define CMSG_COMPAT_OK(ucmlen, ucmsg, mhdr) \ argument
119 ((ucmlen) >= sizeof(struct compat_cmsghdr) && \
120 (ucmlen) <= (unsigned long) \
143 compat_size_t ucmlen; in cmsghdr_from_user_compat_to_kern() local
154 if (get_user(ucmlen, &ucmsg->cmsg_len)) in cmsghdr_from_user_compat_to_kern()
158 if (!CMSG_COMPAT_OK(ucmlen, ucmsg, kmsg)) in cmsghdr_from_user_compat_to_kern()
161 tmp = ((ucmlen - sizeof(*ucmsg)) + sizeof(struct cmsghdr)); in cmsghdr_from_user_compat_to_kern()
164 ucmsg = cmsg_compat_nxthdr(kmsg, ucmsg, ucmlen); in cmsghdr_from_user_compat_to_kern()