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acpi: Don't add an empty SSDT. 

It's harmless but useless.

Change-Id: Iaaa5f6933d120a2071b2e32e62e36e63afa96be3
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/7043
Reviewed-by: Aaron Durbin <adurbin@gmail.com>
Tested-by: build bot (Jenkins)
This commit is contained in:
Vladimir Serbinenko 2014-10-10 20:40:41 +02:00
parent 0a66991a34
commit 9310df8d03
1 changed files with 5 additions and 3 deletions
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8
src/arch/x86/boot/acpi.c
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@ -749,9 +749,11 @@ unsigned long write_acpi_tables(unsigned long start)
printk(BIOS_DEBUG, "ACPI: * SSDT\n");
ssdt = (acpi_header_t *)current;
acpi_create_ssdt_generator(ssdt, ACPI_TABLE_CREATOR);
current += ssdt->length;
acpi_add_table(rsdp, ssdt);
ALIGN_CURRENT;
if (ssdt->length > sizeof(acpi_header_t)) {
current += ssdt->length;
acpi_add_table(rsdp, ssdt);
ALIGN_CURRENT;
}
printk(BIOS_DEBUG, "ACPI: * MCFG\n");
mcfg = (acpi_mcfg_t *) current;