30 static bool tls_desc_okay(const struct user_desc *info)  in tls_desc_okay()  argument
53 	if (LDT_empty(info) || LDT_zero(info))  in tls_desc_okay()
60 	if (!info->seg_32bit)  in tls_desc_okay()
64 	if (info->contents > 1)  in tls_desc_okay()
76 	if (info->seg_not_present)  in tls_desc_okay()
83 			 const struct user_desc *info, int n)  in set_tls_desc()  argument
95 		if (LDT_empty(info) || LDT_zero(info))  in set_tls_desc()
98 			fill_ldt(desc, info);  in set_tls_desc()
99 		++info;  in set_tls_desc()
116 	struct user_desc info;  in do_set_thread_area()  local
118 	if (copy_from_user(&info, u_info, sizeof(info)))  in do_set_thread_area()
121 	if (!tls_desc_okay(&info))  in do_set_thread_area()
125 		idx = info.entry_number;  in do_set_thread_area()
142 	set_tls_desc(p, idx, &info, 1);  in do_set_thread_area()
157 static void fill_user_desc(struct user_desc *info, int idx,  in fill_user_desc()  argument
161 	memset(info, 0, sizeof(*info));  in fill_user_desc()
162 	info->entry_number = idx;  in fill_user_desc()
163 	info->base_addr = get_desc_base(desc);  in fill_user_desc()
164 	info->limit = get_desc_limit(desc);  in fill_user_desc()
165 	info->seg_32bit = desc->d;  in fill_user_desc()
166 	info->contents = desc->type >> 2;  in fill_user_desc()
167 	info->read_exec_only = !(desc->type & 2);  in fill_user_desc()
168 	info->limit_in_pages = desc->g;  in fill_user_desc()
169 	info->seg_not_present = !desc->p;  in fill_user_desc()
170 	info->useable = desc->avl;  in fill_user_desc()
172 	info->lm = desc->l;  in fill_user_desc()
179 	struct user_desc info;  in do_get_thread_area()  local
187 	fill_user_desc(&info, idx,  in do_get_thread_area()
190 	if (copy_to_user(u_info, &info, sizeof(info)))  in do_get_thread_area()
227 		struct user_desc *info = kbuf;  in regset_tls_get()  local
229 			fill_user_desc(info++, GDT_ENTRY_TLS_MIN + pos++,  in regset_tls_get()
234 			struct user_desc info;  in regset_tls_get()  local
235 			fill_user_desc(&info, GDT_ENTRY_TLS_MIN + pos++, tls++);  in regset_tls_get()
236 			if (__copy_to_user(u_info++, &info, sizeof(info)))  in regset_tls_get()
249 	const struct user_desc *info;  in regset_tls_set()  local
258 		info = kbuf;  in regset_tls_set()
262 		info = infobuf;  in regset_tls_set()
265 		if (!tls_desc_okay(info + i))  in regset_tls_set()
270 		     info, count / sizeof(struct user_desc));  in regset_tls_set()