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| /openbmc/linux/drivers/firmware/efi/libstub/ |
| H A D | efi-stub-helper.c | fd0528a2 Mon May 18 14:06:55 CDT 2020 Arvind Sankar <nivedita@alum.mit.edu> efi/libstub: Buffer output of efi_puts
Use a buffer to convert the string to UTF-16. This will reduce the
number of firmware calls required to print the string from one per
character to one per string in most cases.
Cast the input char to unsigned char before converting to efi_char16_t
to avoid sign-extension in case there are any non-ASCII characters in
the input.
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Link: https://lore.kernel.org/r/20200518190716.751506-4-nivedita@alum.mit.edu
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
fd0528a2 Mon May 18 14:06:55 CDT 2020 Arvind Sankar <nivedita@alum.mit.edu> efi/libstub: Buffer output of efi_puts
Use a buffer to convert the string to UTF-16. This will reduce the
number of firmware calls required to print the string from one per
character to one per string in most cases.
Cast the input char to unsigned char before converting to efi_char16_t
to avoid sign-extension in case there are any non-ASCII characters in
the input.
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Link: https://lore.kernel.org/r/20200518190716.751506-4-nivedita@alum.mit.edu
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
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