hibernation: constify platform_hibernation_ops

Patch against mainline.

Changes since v1: added one hunk; no longer adding "const" qualifier to
pointers in platform_hibernation_ops after seeing
b4144e4f6e3b448d322095ca08af393682a69e33.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>

diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 721d93b..5149c9b 100644 (file)
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -498,7 +498,7 @@ static void acpi_pm_thaw(void)
        acpi_enable_all_runtime_gpes();
 }
 
-static struct platform_hibernation_ops acpi_hibernation_ops = {
+static const struct platform_hibernation_ops acpi_hibernation_ops = {
        .begin = acpi_hibernation_begin,
        .end = acpi_pm_end,
        .pre_snapshot = acpi_pm_prepare,
@@ -541,7 +541,7 @@ static int acpi_hibernation_begin_old(void)
  * The following callbacks are used if the pre-ACPI 2.0 suspend ordering has
  * been requested.
  */
-static struct platform_hibernation_ops acpi_hibernation_ops_old = {
+static const struct platform_hibernation_ops acpi_hibernation_ops_old = {
        .begin = acpi_hibernation_begin_old,
        .end = acpi_pm_end,
        .pre_snapshot = acpi_pm_pre_suspend,

diff --git a/include/linux/suspend.h b/include/linux/suspend.h
index 2669751..40ead94 100644 (file)
--- a/include/linux/suspend.h
+++ b/include/linux/suspend.h
@@ -245,7 +245,7 @@ extern void swsusp_set_page_free(struct page *);
 extern void swsusp_unset_page_free(struct page *);
 extern unsigned long get_safe_page(gfp_t gfp_mask);
 
-extern void hibernation_set_ops(struct platform_hibernation_ops *ops);
+extern void hibernation_set_ops(const struct platform_hibernation_ops *ops);
 extern int hibernate(void);
 extern bool system_entering_hibernation(void);
 #else /* CONFIG_HIBERNATION */
@@ -253,7 +253,7 @@ static inline int swsusp_page_is_forbidden(struct page *p) { return 0; }
 static inline void swsusp_set_page_free(struct page *p) {}
 static inline void swsusp_unset_page_free(struct page *p) {}
 
-static inline void hibernation_set_ops(struct platform_hibernation_ops *ops) {}
+static inline void hibernation_set_ops(const struct platform_hibernation_ops *ops) {}
 static inline int hibernate(void) { return -ENOSYS; }
 static inline bool system_entering_hibernation(void) { return false; }
 #endif /* CONFIG_HIBERNATION */

diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c
index 657272e..491b81a 100644 (file)
--- a/kernel/power/hibernate.c
+++ b/kernel/power/hibernate.c
@@ -51,14 +51,14 @@ enum {
 
 static int hibernation_mode = HIBERNATION_SHUTDOWN;
 
-static struct platform_hibernation_ops *hibernation_ops;
+static const struct platform_hibernation_ops *hibernation_ops;
 
 /**
  * hibernation_set_ops - set the global hibernate operations
  * @ops: the hibernation operations to use in subsequent hibernation transitions
  */
 
-void hibernation_set_ops(struct platform_hibernation_ops *ops)
+void hibernation_set_ops(const struct platform_hibernation_ops *ops)
 {
        if (ops && !(ops->begin && ops->end &&  ops->pre_snapshot
            && ops->prepare && ops->finish && ops->enter && ops->pre_restore