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efi_selftest: simplify endian conversion for FDT test

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UEFI code is always little-endian. Remove a superfluous test.

Remove a superfluous type conversion.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
This commit is contained in:
Heinrich Schuchardt 2021-11-25 18:55:09 +01:00
parent 9d1564dabc
commit 9abd2ca96e
1 changed files with 8 additions and 7 deletions
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15
lib/efi_selftest/efi_selftest_fdt.c
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@ -23,23 +23,24 @@ static const char *fdt;
static const efi_guid_t fdt_guid = EFI_FDT_GUID; static const efi_guid_t fdt_guid = EFI_FDT_GUID;
static const efi_guid_t acpi_guid = EFI_ACPI_TABLE_GUID; static const efi_guid_t acpi_guid = EFI_ACPI_TABLE_GUID;
/* /**
* Convert FDT value to host endianness. * f2h() - convert FDT value to host endianness.
* *
* @val FDT value * UEFI code is always low endian. The FDT is big endian.
* @return converted value *
* @val: FDT value
* Return: converted value
*/ */
static uint32_t f2h(fdt32_t val) static uint32_t f2h(fdt32_t val)
{ {
char *buf = (char *)&val; char *buf = (char *)&val;
char i; char i;
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
/* Swap the bytes */ /* Swap the bytes */
i = buf[0]; buf[0] = buf[3]; buf[3] = i; i = buf[0]; buf[0] = buf[3]; buf[3] = i;
i = buf[1]; buf[1] = buf[2]; buf[2] = i; i = buf[1]; buf[1] = buf[2]; buf[2] = i;
#endif
return *(uint32_t *)buf; return val;
} }
/** /**