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author | Heinrich Schuchardt <xypron.glpk@gmx.de> | 2018-09-20 20:57:54 +0300 |
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committer | Alexander Graf <agraf@suse.de> | 2018-09-23 22:55:31 +0300 |
commit | 9d08f6db2a130a03282865ded550655b022e5ce7 (patch) | |
tree | be02a5aad78eae897272d97671087a02f8972c84 | |
parent | 4e6b5d6503ce8f16f00df4aedd137e919026dfad (diff) | |
download | u-boot-9d08f6db2a130a03282865ded550655b022e5ce7.tar.xz |
efi_loader: remove redundant statement
ascii2unicode() always ends the u16 string with '\0'.
Remove redundant assignment.
Add description for efi_str_to_u16() and ascii2unicode().
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
-rw-r--r-- | include/efi_loader.h | 10 | ||||
-rw-r--r-- | lib/efi_loader/efi_device_path_to_text.c | 10 |
2 files changed, 18 insertions, 2 deletions
diff --git a/include/efi_loader.h b/include/efi_loader.h index 2855c01681..5d522f133e 100644 --- a/include/efi_loader.h +++ b/include/efi_loader.h @@ -411,7 +411,15 @@ efi_status_t efi_dp_split_file_path(struct efi_device_path *full_path, (((_dp)->type == DEVICE_PATH_TYPE_##_type) && \ ((_dp)->sub_type == DEVICE_PATH_SUB_TYPE_##_subtype)) -/* Convert strings from normal C strings to uEFI strings */ +/** + * ascii2unicode() - convert ASCII string to UTF-16 string + * + * A zero terminated ASCII string is converted to a zero terminated UTF-16 + * string. The output buffer must be preassigned. + * + * @unicode: preassigned output buffer for UTF-16 string + * @ascii: ASCII string to be converted + */ static inline void ascii2unicode(u16 *unicode, const char *ascii) { while (*ascii) diff --git a/lib/efi_loader/efi_device_path_to_text.c b/lib/efi_loader/efi_device_path_to_text.c index ca8037def2..0082236359 100644 --- a/lib/efi_loader/efi_device_path_to_text.c +++ b/lib/efi_loader/efi_device_path_to_text.c @@ -17,6 +17,15 @@ const efi_guid_t efi_guid_device_path_to_text_protocol = EFI_DEVICE_PATH_TO_TEXT_PROTOCOL_GUID; +/** + * efi_str_to_u16() - convert ASCII string to UTF-16 + * + * A u16 buffer is allocated from pool. The ASCII string is copied to the u16 + * buffer. + * + * @str: ASCII string + * Return: UTF-16 string. NULL if out of memory. + */ static u16 *efi_str_to_u16(char *str) { efi_uintn_t len; @@ -29,7 +38,6 @@ static u16 *efi_str_to_u16(char *str) if (ret != EFI_SUCCESS) return NULL; ascii2unicode(out, str); - out[len - 1] = 0; return out; } |