1 // SPDX-License-Identifier: GPL-2.0+
6  * through the sysfs file system. The ESRT provides a read-only catalog of
98 	return attr->show(entry, buf);  in esre_attr_show()
110 	efi_guid_to_str(&entry->esre.esre1->fw_class, str);  in fw_class_show()
114 	return str - buf;  in fw_class_show()
119 #define esre_attr_decl(name, size, fmt) \  argument
120 static ssize_t name##_show(struct esre_entry *entry, char *buf) \
123 		       le##size##_to_cpu(entry->esre.esre1->name)); \
126 static struct esre_attribute esre_##name = __ATTR_RO_MODE(name, 0400)
151 	list_del(&entry->list);  in esre_release()
171 		return -ENOMEM;  in esre_create_sysfs_entry()
173 	entry->kobj.kset = esrt_kset;  in esre_create_sysfs_entry()
175 	if (esrt->fw_resource_version == 1) {  in esre_create_sysfs_entry()
176 		int rc = 0;  in esre_create_sysfs_entry()  local
178 		entry->esre.esre1 = esre;  in esre_create_sysfs_entry()
179 		rc = kobject_init_and_add(&entry->kobj, &esre1_ktype, NULL,  in esre_create_sysfs_entry()
181 		if (rc) {  in esre_create_sysfs_entry()
182 			kobject_put(&entry->kobj);  in esre_create_sysfs_entry()
183 			return rc;  in esre_create_sysfs_entry()
187 	list_add_tail(&entry->list, &entry_list);  in esre_create_sysfs_entry()
192 #define esrt_attr_decl(name, size, fmt) \  argument
193 static ssize_t name##_show(struct kobject *kobj, \
196 	return sprintf(buf, fmt "\n", le##size##_to_cpu(esrt->name)); \
199 static struct kobj_attribute esrt_##name = __ATTR_RO_MODE(name, 0400)
226 	return attr->mode;  in esrt_attr_is_visible()
243 	int rc;  in efi_esrt_init()  local
249 	pr_debug("esrt-init: loading.\n");  in efi_esrt_init()
253 	rc = efi_mem_desc_lookup(efi.esrt, &md);  in efi_esrt_init()
254 	if (rc < 0 ||  in efi_esrt_init()
260 		pr_warn("ESRT header is not in the memory map.\n");  in efi_esrt_init()
264 	max = efi_mem_desc_end(&md) - efi.esrt;  in efi_esrt_init()
268 		pr_err("ESRT header doesn't fit on single memory map entry. (size: %zu max: %zu)\n",  in efi_esrt_init()
290 	if (tmpesrt.fw_resource_count > 0 && max - size < entry_size) {  in efi_esrt_init()
291 		pr_err("ESRT memory map entry can only hold the header. (max: %zu size: %zu)\n",  in efi_esrt_init()
292 		       max - size, entry_size);  in efi_esrt_init()
315 		pr_err("ESRT does not fit on single memory map entry (size: %zu max: %zu)\n",  in efi_esrt_init()
330 	pr_debug("esrt-init: loaded.\n");  in efi_esrt_init()
335 	struct efi_system_resource_entry_v1 *v1_entries = (void *)esrt->entries;  in register_entries()
336 	int i, rc;  in register_entries()  local
341 	for (i = 0; i < le32_to_cpu(esrt->fw_resource_count); i++) {  in register_entries()
343 		if (esrt->fw_resource_version == 1) {  in register_entries()
347 			       esrt->fw_resource_version);  in register_entries()
348 			return -EINVAL;  in register_entries()
351 		rc = esre_create_sysfs_entry(esre, i);  in register_entries()
352 		if (rc < 0) {  in register_entries()
354 			       rc);  in register_entries()
355 			return rc;  in register_entries()
366 		kobject_put(&entry->kobj);  in cleanup_entry_list()
374 	pr_debug("esrt-sysfs: loading.\n");  in esrt_sysfs_init()
376 		return -ENOSYS;  in esrt_sysfs_init()
382 		return -ENOMEM;  in esrt_sysfs_init()
388 		error = -ENOMEM;  in esrt_sysfs_init()
402 		error = -ENOMEM;  in esrt_sysfs_init()
410 	pr_debug("esrt-sysfs: loaded.\n");  in esrt_sysfs_init()