summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorAleksey Makarov <aleksey.makarov@linaro.org>2016-06-20 13:56:10 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-06-22 01:16:14 +0200
commitda3d3f98d28bc071a2d566aefc8c461bd564be35 (patch)
tree3ce07af1409696129b7d4fabcb1e088442aae160
parentce0c1fcc7357ef0ec93c5a1cd1a759729d27599a (diff)
ACPI / tables: table upgrade: refactor function definitions
Refer initrd_start, initrd_end directly from drivers/acpi/tables.c. This allows to use the table upgrade feature in architectures other than x86. Also this simplifies header files. The patch renames acpi_table_initrd_init() to acpi_table_upgrade() (what reflects the purpose of the function) and removes the unneeded wraps early_acpi_table_init() and early_initrd_acpi_init(). Signed-off-by: Aleksey Makarov <aleksey.makarov@linaro.org> Acked-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
-rw-r--r--arch/x86/kernel/setup.c9
-rw-r--r--drivers/acpi/tables.c14
-rw-r--r--include/linux/acpi.h8
3 files changed, 11 insertions, 20 deletions
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index c4e7b3991b60..aac91beabf05 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -399,10 +399,6 @@ 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)
{
@@ -410,9 +406,6 @@ 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)
@@ -1146,7 +1139,7 @@ void __init setup_arch(char **cmdline_p)
reserve_initrd();
- early_initrd_acpi_init();
+ acpi_table_upgrade();
vsmp_init();
diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c
index f829e6a2e663..b05df13bd79f 100644
--- a/drivers/acpi/tables.c
+++ b/drivers/acpi/tables.c
@@ -34,6 +34,7 @@
#include <linux/bootmem.h>
#include <linux/earlycpio.h>
#include <linux/memblock.h>
+#include <linux/initrd.h>
#include "internal.h"
#ifdef CONFIG_ACPI_CUSTOM_DSDT
@@ -481,8 +482,10 @@ static DECLARE_BITMAP(acpi_initrd_installed, NR_ACPI_INITRD_TABLES);
#define MAP_CHUNK_SIZE (NR_FIX_BTMAPS << PAGE_SHIFT)
-static void __init acpi_table_initrd_init(void *data, size_t size)
+void __init acpi_table_upgrade(void)
{
+ void *data = (void *)initrd_start;
+ size_t size = initrd_end - initrd_start;
int sig, no, table_nr = 0, total_offset = 0;
long offset = 0;
struct acpi_table_header *table;
@@ -696,10 +699,6 @@ next_table:
}
}
#else
-static void __init acpi_table_initrd_init(void *data, size_t size)
-{
-}
-
static acpi_status
acpi_table_initrd_override(struct acpi_table_header *existing_table,
acpi_physical_address *address,
@@ -742,11 +741,6 @@ acpi_os_table_override(struct acpi_table_header *existing_table,
return AE_OK;
}
-void __init early_acpi_table_init(void *data, size_t size)
-{
- acpi_table_initrd_init(data, size);
-}
-
/*
* acpi_table_init()
*
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 288fac5294f5..ef2ad26abede 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -208,7 +208,6 @@ void acpi_boot_table_init (void);
int acpi_mps_check (void);
int acpi_numa_init (void);
-void early_acpi_table_init(void *data, size_t size);
int acpi_table_init (void);
int acpi_table_parse(char *id, acpi_tbl_table_handler handler);
int __init acpi_parse_entries(char *id, unsigned long table_size,
@@ -588,7 +587,6 @@ static inline const char *acpi_dev_name(struct acpi_device *adev)
return NULL;
}
-static inline void early_acpi_table_init(void *data, size_t size) { }
static inline void acpi_early_init(void) { }
static inline void acpi_subsystem_init(void) { }
@@ -997,4 +995,10 @@ static inline struct fwnode_handle *acpi_get_next_subnode(struct device *dev,
#define acpi_probe_device_table(t) ({ int __r = 0; __r;})
#endif
+#ifdef CONFIG_ACPI_TABLE_UPGRADE
+void acpi_table_upgrade(void);
+#else
+static inline void acpi_table_upgrade(void) { }
+#endif
+
#endif /*_LINUX_ACPI_H*/