remove software_suspend()

Remove software_suspend() and all its users since
pm_suspend(PM_SUSPEND_DISK) should be equivalent and there's no point in
having two interfaces for the same thing.

The patch also changes the valid_state function to return 0 (false) for
PM_SUSPEND_DISK when SOFTWARE_SUSPEND is not configured instead of
accepting it and having the whole thing fail later.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 1 insertions, 9 deletions

diff --git a/include/linux/init.h b/include/linux/init.h
index 9abf120ec9f8..dbbdbd1bec77 100644
--- a/include/linux/init.h
+++ b/include/linux/init.h
@@ -233,7 +233,7 @@ void __init parse_early_param(void);
 #define __obsolete_setup(str)                   /* nothing */
 #endif
 
-/* Data marked not to be saved by software_suspend() */
+/* Data marked not to be saved by software suspend */
 #define __nosavedata __attribute__ ((__section__ (".data.nosave")))
 
 /* This means "can be init if no module support, otherwise module load
diff --git a/include/linux/suspend.h b/include/linux/suspend.h
index 3cc4d6394c07..3aecc96acc76 100644
--- a/include/linux/suspend.h
+++ b/include/linux/suspend.h
@@ -33,8 +33,6 @@ static inline void pm_restore_console(void) {}
 #endif
 
 #if defined(CONFIG_PM) && defined(CONFIG_SOFTWARE_SUSPEND)
-/* kernel/power/swsusp.c */
-extern int software_suspend(void);
 /* kernel/power/snapshot.c */
 extern void __init register_nosave_region(unsigned long, unsigned long);
 extern int swsusp_page_is_forbidden(struct page *);
@@ -42,12 +40,6 @@ 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);
 #else
-static inline int software_suspend(void)
-{
-        printk("Warning: fake suspend called\n");
-        return -ENOSYS;
-}
-
 static inline void register_nosave_region(unsigned long b, unsigned long e) {}
 static inline int swsusp_page_is_forbidden(struct page *p) { return 0; }
 static inline void swsusp_set_page_free(struct page *p) {}