212 	struct user_desc ldt_info;  in write_ldt()  local
217 	if (bytecount != sizeof(ldt_info))  in write_ldt()
220 	if (copy_from_user(&ldt_info, ptr, sizeof(ldt_info)))  in write_ldt()
224 	if (ldt_info.entry_number >= LDT_ENTRIES)  in write_ldt()
226 	if (ldt_info.contents == 3) {  in write_ldt()
229 		if (ldt_info.seg_not_present == 0)  in write_ldt()
233 	if ((oldmode && !ldt_info.base_addr && !ldt_info.limit) ||  in write_ldt()
234 	    LDT_empty(&ldt_info)) {  in write_ldt()
238 		if (!IS_ENABLED(CONFIG_X86_16BIT) && !ldt_info.seg_32bit) {  in write_ldt()
243 		fill_ldt(&ldt, &ldt_info);  in write_ldt()
252 	newsize = max((int)(ldt_info.entry_number + 1), oldsize);  in write_ldt()
261 	new_ldt->entries[ldt_info.entry_number] = ldt;  in write_ldt()