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x86: acpi: Remove the unnecessary checksum calculation of DSDT

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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@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Bin Meng 2016-05-11 07:45:04 -07:00
parent 6aef68dc36
commit 17b63c80bf
1 changed files with 0 additions and 6 deletions
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6
arch/x86/lib/acpi_table.c
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@ -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);