hw/arm/virt-acpi-build: remove unnecessary variable mcfg_start

mcfg_start points to the start of MCFG table and is used in
build_header. While this information could be derived from mcfg.

This patch removes the unnecessary variable mcfg_start.

Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190419003053.8260-3-richardw.yang@linux.intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Wei Yang 2019-04-19 08:30:49 +08:00 committed by Michael S. Tsirkin
parent 6ab79a20af
commit ccf0f0f2c2

View file

@ -552,7 +552,6 @@ build_mcfg(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms)
const MemMapEntry *memmap = vms->memmap;
int ecam_id = VIRT_ECAM_ID(vms->highmem_ecam);
int len = sizeof(*mcfg) + sizeof(mcfg->allocation[0]);
int mcfg_start = table_data->len;
mcfg = acpi_data_push(table_data, len);
mcfg->allocation[0].address = cpu_to_le64(memmap[ecam_id].base);
@ -563,8 +562,7 @@ build_mcfg(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms)
mcfg->allocation[0].end_bus_number =
PCIE_MMCFG_BUS(memmap[ecam_id].size - 1);
build_header(linker, table_data, (void *)(table_data->data + mcfg_start),
"MCFG", table_data->len - mcfg_start, 1, NULL, NULL);
build_header(linker, table_data, (void *)mcfg, "MCFG", len, 1, NULL, NULL);
}
/* GTDT */