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| author | Matt Fleming <matt.fleming@intel.com> | 2013-02-03 19:53:46 +0000 |
|---|---|---|
| committer | Matt Fleming <matt.fleming@intel.com> | 2013-04-17 08:28:21 +0100 |
| commit | d5abc7c1050ab2b9556a4bf21626cd74e83cd086 (patch) | |
| tree | c38123d5676d331d9562a7f2620b470743b80f09 /include/linux | |
| parent | 07961ac7c0ee8b546658717034fe692fd12eefa9 (diff) | |
| download | linux-stable-d5abc7c1050ab2b9556a4bf21626cd74e83cd086.tar.gz linux-stable-d5abc7c1050ab2b9556a4bf21626cd74e83cd086.tar.bz2 linux-stable-d5abc7c1050ab2b9556a4bf21626cd74e83cd086.zip | |
efi: move utf16 string functions to efi.h
There are currently two implementations of the utf16 string functions.
Somewhat confusingly, they've got different names.
Centralise the functions in efi.h.
Reviewed-by: Tom Gundersen <teg@jklm.no>
Tested-by: Tom Gundersen <teg@jklm.no>
Reviewed-by: Mike Waychison <mikew@google.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Diffstat (limited to 'include/linux')
| -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 9bf2f1fcae27..d1d782a6d34c 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. |