[U-Boot] [PATCH v2 10/18] x86: acpi: Remove the unnecessary checksum calculation of DSDT
Bin Meng
bmeng.cn at gmail.com
Wed May 11 16:45:04 CEST 2016
The generated AmlCode[] from IASL already has the calculated DSDT
table checksum in place. No need for us to calculate it again.
Signed-off-by: Bin Meng <bmeng.cn at gmail.com>
---
Changes in v2:
- New patch to remove the unnecessary checksum calculation of DSDT
arch/x86/lib/acpi_table.c | 6 ------
1 file changed, 6 deletions(-)
diff --git a/arch/x86/lib/acpi_table.c b/arch/x86/lib/acpi_table.c
index a9fe243..05c958d 100644
--- a/arch/x86/lib/acpi_table.c
+++ b/arch/x86/lib/acpi_table.c
@@ -382,12 +382,6 @@ u32 write_acpi_tables(u32 start)
(char *)&AmlCode + sizeof(struct acpi_table_header),
dsdt->length - sizeof(struct acpi_table_header));
current += dsdt->length - sizeof(struct acpi_table_header);
-
- /* (Re)calculate length and checksum */
- dsdt->length = current - (u32)dsdt;
- dsdt->checksum = 0;
- dsdt->checksum = table_compute_checksum((void *)dsdt,
- dsdt->length);
}
current = ALIGN(current, 16);
--
1.8.2.1
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