diff options
Diffstat (limited to 'drivers/acpi/tables.c')
| -rw-r--r-- | drivers/acpi/tables.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c index 48eabb6c2d4f..8fccbe49612a 100644 --- a/drivers/acpi/tables.c +++ b/drivers/acpi/tables.c @@ -473,14 +473,22 @@ static DECLARE_BITMAP(acpi_initrd_installed, NR_ACPI_INITRD_TABLES); void __init acpi_table_upgrade(void) { - void *data = (void *)initrd_start; - size_t size = initrd_end - initrd_start; + void *data; + size_t size; int sig, no, table_nr = 0, total_offset = 0; long offset = 0; struct acpi_table_header *table; char cpio_path[32] = "kernel/firmware/acpi/"; struct cpio_data file; + if (IS_ENABLED(CONFIG_ACPI_TABLE_OVERRIDE_VIA_BUILTIN_INITRD)) { + data = __initramfs_start; + size = __initramfs_size; + } else { + data = (void *)initrd_start; + size = initrd_end - initrd_start; + } + if (data == NULL || size == 0) return; |