1 // SPDX-License-Identifier: GPL-2.0+
6  * through the sysfs file system. The ESRT provides a read-only catalog of
100 		return -EACCES;  in esre_attr_show()
102 	return attr->show(entry, buf);  in esre_attr_show()
114 	efi_guid_to_str(&entry->esre.esre1->fw_class, str);  in fw_class_show()
118 	return str - buf;  in fw_class_show()
123 #define esre_attr_decl(name, size, fmt) \  argument
124 static ssize_t name##_show(struct esre_entry *entry, char *buf) \
127 		       le##size##_to_cpu(entry->esre.esre1->name)); \
130 static struct esre_attribute esre_##name = __ATTR_RO_MODE(name, 0400)
153 	list_del(&entry->list);  in esre_release()
173 		return -ENOMEM;  in esre_create_sysfs_entry()
175 	entry->kobj.kset = esrt_kset;  in esre_create_sysfs_entry()
177 	if (esrt->fw_resource_version == 1) {  in esre_create_sysfs_entry()
178 		int rc = 0;  in esre_create_sysfs_entry()  local
180 		entry->esre.esre1 = esre;  in esre_create_sysfs_entry()
181 		rc = kobject_init_and_add(&entry->kobj, &esre1_ktype, NULL,  in esre_create_sysfs_entry()
183 		if (rc) {  in esre_create_sysfs_entry()
184 			kobject_put(&entry->kobj);  in esre_create_sysfs_entry()
185 			return rc;  in esre_create_sysfs_entry()
189 	list_add_tail(&entry->list, &entry_list);  in esre_create_sysfs_entry()
194 #define esrt_attr_decl(name, size, fmt) \  argument
195 static ssize_t name##_show(struct kobject *kobj, \
198 	return sprintf(buf, fmt "\n", le##size##_to_cpu(esrt->name)); \
201 static struct kobj_attribute esrt_##name = __ATTR_RO_MODE(name, 0400)
228 	return attr->mode;  in esrt_attr_is_visible()
245 	int rc;  in efi_esrt_init()  local
251 	pr_debug("esrt-init: loading.\n");  in efi_esrt_init()
255 	rc = efi_mem_desc_lookup(efi.esrt, &md);  in efi_esrt_init()
256 	if (rc < 0 ||  in efi_esrt_init()
260 		pr_warn("ESRT header is not in the memory map.\n");  in efi_esrt_init()
272 	max -= efi.esrt;  in efi_esrt_init()
275 		pr_err("ESRT header doesn't fit on single memory map entry. (size: %zu max: %zu)\n",  in efi_esrt_init()
297 	if (tmpesrt.fw_resource_count > 0 && max - size < entry_size) {  in efi_esrt_init()
298 		pr_err("ESRT memory map entry can only hold the header. (max: %zu size: %zu)\n",  in efi_esrt_init()
299 		       max - size, entry_size);  in efi_esrt_init()
322 		pr_err("ESRT does not fit on single memory map entry (size: %zu max: %zu)\n",  in efi_esrt_init()
337 	pr_debug("esrt-init: loaded.\n");  in efi_esrt_init()
342 	struct efi_system_resource_entry_v1 *v1_entries = (void *)esrt->entries;  in register_entries()
343 	int i, rc;  in register_entries()  local
348 	for (i = 0; i < le32_to_cpu(esrt->fw_resource_count); i++) {  in register_entries()
350 		if (esrt->fw_resource_version == 1) {  in register_entries()
354 			       esrt->fw_resource_version);  in register_entries()
355 			return -EINVAL;  in register_entries()
358 		rc = esre_create_sysfs_entry(esre, i);  in register_entries()
359 		if (rc < 0) {  in register_entries()
361 			       rc);  in register_entries()
362 			return rc;  in register_entries()
373 		kobject_put(&entry->kobj);  in cleanup_entry_list()
381 	pr_debug("esrt-sysfs: loading.\n");  in esrt_sysfs_init()
383 		return -ENOSYS;  in esrt_sysfs_init()
389 		return -ENOMEM;  in esrt_sysfs_init()
395 		error = -ENOMEM;  in esrt_sysfs_init()
409 		error = -ENOMEM;  in esrt_sysfs_init()
417 	pr_debug("esrt-sysfs: loaded.\n");  in esrt_sysfs_init()