diff options
Diffstat (limited to 'include/linux/efi.h')
| -rw-r--r-- | include/linux/efi.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/linux/efi.h b/include/linux/efi.h index 9bf2f1fcae2..d1d782a6d34 100644 --- a/include/linux/efi.h +++ b/include/linux/efi.h @@ -719,6 +719,23 @@ static inline void memrange_efi_to_native(u64 *addr, u64 *npages) *addr &= PAGE_MASK; } +/* Return the number of unicode characters in data */ +static inline unsigned long +utf16_strnlen(efi_char16_t *s, size_t maxlength) +{ + unsigned long length = 0; + + while (*s++ != 0 && length < maxlength) + length++; + return length; +} + +static inline unsigned long +utf16_strlen(efi_char16_t *s) +{ + return utf16_strnlen(s, ~0UL); +} + #if defined(CONFIG_EFI_VARS) || defined(CONFIG_EFI_VARS_MODULE) /* * EFI Variable support. |