diff options
Diffstat (limited to 'include/linux/efi.h')
| -rw-r--r-- | include/linux/efi.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/include/linux/efi.h b/include/linux/efi.h index cd561b301e6a..8ff6ec1ac046 100644 --- a/include/linux/efi.h +++ b/include/linux/efi.h @@ -744,6 +744,34 @@ utf16_strlen(efi_char16_t *s) #if defined(CONFIG_EFI_VARS) || defined(CONFIG_EFI_VARS_MODULE) /* + * Return the number of bytes is the length of this string + * Note: this is NOT the same as the number of unicode characters + */ +static inline unsigned long +utf16_strsize(efi_char16_t *data, unsigned long maxlength) +{ + return utf16_strnlen(data, maxlength/sizeof(efi_char16_t)) * sizeof(efi_char16_t); +} + +static inline int +utf16_strncmp(const efi_char16_t *a, const efi_char16_t *b, size_t len) +{ + while (1) { + if (len == 0) + return 0; + if (*a < *b) + return -1; + if (*a > *b) + return 1; + if (*a == 0) /* implies *b == 0 */ + return 0; + a++; + b++; + len--; + } +} + +/* * EFI Variable support. * * Different firmware drivers can expose their EFI-like variables using @@ -795,6 +823,14 @@ struct efivar_entry { struct kobject kobj; }; +extern struct list_head efivar_sysfs_list; + +static inline void +efivar_unregister(struct efivar_entry *var) +{ + kobject_put(&var->kobj); +} + int efivars_register(struct efivars *efivars, const struct efivar_operations *ops, struct kobject *kobject); @@ -836,6 +872,8 @@ struct efivar_entry *efivar_entry_find(efi_char16_t *name, efi_guid_t guid, bool efivar_validate(struct efi_variable *var, u8 *data, unsigned long len); +void efivar_run_worker(void); + int efivars_sysfs_init(void); #endif /* CONFIG_EFI_VARS */ |