linux-kernel - [Resend][PATCH 6/9] PM: Fix compilation of suspend code if CONFIG

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Message-Id: <200707172245.49527.rjw@sisk.pl>
Date:	Tue, 17 Jul 2007 22:45:48 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Alan Stern <stern@...land.harvard.edu>,
	David Brownell <david-b@...bell.net>,
	Len Brown <len.brown@...el.com>,
	Nigel Cunningham <nigel@...el.suspend2.net>,
	Pavel Machek <pavel@....cz>, Shaohua Li <shaohua.li@...el.com>,
	Johannes Berg <johannes@...solutions.net>,
	Paul Mackerras <paulus@...ba.org>,
	Russell King <rmk@....linux.org.uk>
Subject: [Resend][PATCH 6/9] PM: Fix compilation of suspend code if CONFIG_PM is unset

From: Rafael J. Wysocki <rjw@...k.pl>

Some platforms, particualrly in the ARM tree, require that suspend_set_ops() and
pm_suspend() be defined even if CONFIG_PM is not set.  Make this requirement be
satisfied.

Signed-off-by: Rafael J. Wysocki <rjw@...k.pl>
Acked-by: Pavel Machek <pavel@....cz>
---
 include/linux/suspend.h |    7 +++++++
 1 file changed, 7 insertions(+)

Index: linux-2.6.22-git5/include/linux/suspend.h
===================================================================
--- linux-2.6.22-git5.orig/include/linux/suspend.h
+++ linux-2.6.22-git5/include/linux/suspend.h
@@ -79,6 +79,7 @@ struct platform_suspend_ops {
 
 extern struct platform_suspend_ops *suspend_ops;
 
+#ifdef CONFIG_PM
 /**
  * suspend_set_ops - set platform dependent suspend operations
  * @ops: The new suspend operations to set.
@@ -105,6 +106,12 @@ extern void arch_suspend_disable_irqs(vo
 extern void arch_suspend_enable_irqs(void);
 
 extern int pm_suspend(suspend_state_t state);
+#else /* CONFIG_PM */
+#define suspend_valid_only_mem	NULL
+
+static inline void suspend_set_ops(struct platform_suspend_ops *ops) {}
+static inline int pm_suspend(suspend_state_t state) { return -ENOSYS; }
+#endif /* CONFIG_PM */
 
 /* struct pbe is used for creating lists of pages that should be restored
  * atomically during the resume from disk, because the page frames they have

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