In arch/x86/kernel/setup.c, the #ifdef kept for CONFIG_ACPI actually is
related to the accessibility of initrd_start/initrd_end, so the stub should
be provided from this source file and should only be dependent on
CONFIG_BLK_DEV_INITRD.
Note that when ACPI=n and BLK_DEV_INITRD=y, early_initrd_acpi_init() is
still a stub because of the stub prepared for early_acpi_table_init().
Signed-off-by: Lv Zheng <lv.zheng@xxxxxxxxx>
---
arch/x86/kernel/setup.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 902a6f7..c4e7b39 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -398,6 +398,11 @@ static void __init reserve_initrd(void)
memblock_free(ramdisk_image, ramdisk_end - ramdisk_image);
}
+
+static void __init early_initrd_acpi_init(void)
+{
+ early_acpi_table_init((void *)initrd_start, initrd_end - initrd_start);
+}
#else
static void __init early_reserve_initrd(void)
{
@@ -405,6 +410,9 @@ static void __init early_reserve_initrd(void)
static void __init reserve_initrd(void)
{
}
+static void __init early_initrd_acpi_init(void)
+{
+}
#endif /* CONFIG_BLK_DEV_INITRD */
static void __init parse_setup_data(void)
@@ -1138,9 +1146,7 @@ void __init setup_arch(char **cmdline_p)
reserve_initrd();
-#if defined(CONFIG_ACPI) && defined(CONFIG_BLK_DEV_INITRD)
- early_acpi_table_init((void *)initrd_start, initrd_end - initrd_start);
-#endif
+ early_initrd_acpi_init();
vsmp_init();
--
1.7.10
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