This is a note to let you know that I've just added the patch titled
Subject: PM: Make wakeup flags available whenever CONFIG_PM is set
to my gregkh-2.6 tree. Its filename is
pm-make-wakeup-flags-available-whenever-config_pm-is-set.patch
This tree can be found at
http://www.kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/patches/
>From rjw@xxxxxxx Thu Mar 20 16:20:59 2008
From: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
Date: Wed, 19 Mar 2008 22:37:42 +0100
Subject: PM: Make wakeup flags available whenever CONFIG_PM is set
To: Greg KH <greg@xxxxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>, Linux-pm mailing list <linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx>, Kernel development list <linux-kernel@xxxxxxxxxxxxxxx>, lenb@xxxxxxxxxx
Message-ID: <200803192237.43123.rjw@xxxxxxx>
Content-Disposition: inline
From: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
The various wakeup flags and their accessor macros in struct
dev_pm_info should be available whenever CONFIG_PM is enabled, not
just when CONFIG_PM_SLEEP is on. Otherwise remote wakeup won't always
be configurable for runtime power management. This patch (as1056b)
fixes the oversight.
David Brownell adds:
More accurately, fixes the "regression" ... as noted sometime
last summer, after 296699de6bdc717189a331ab6bbe90e05c94db06
introduced CONFIG_SUSPEND. But that didn't make the regression
list for that kernel, ergo the delay in fixing it.
[rjw: rebased]
Signed-off-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Rafael J. Wysocki <rjw@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
drivers/base/power/main.c | 2 --
drivers/base/power/sysfs.c | 2 ++
include/linux/pm.h | 36 +++++++++++++++++++++---------------
3 files changed, 23 insertions(+), 17 deletions(-)
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -57,8 +57,6 @@ static DEFINE_MUTEX(dpm_list_mtx);
/* 'true' if all devices have been suspended, protected by dpm_list_mtx */
static bool all_sleeping;
-int (*platform_enable_wakeup)(struct device *dev, int is_on);
-
/**
* device_pm_add - add a device to the list of active devices
* @dev: Device to be added to the list
--- a/drivers/base/power/sysfs.c
+++ b/drivers/base/power/sysfs.c
@@ -6,6 +6,8 @@
#include <linux/string.h>
#include "power.h"
+int (*platform_enable_wakeup)(struct device *dev, int is_on);
+
/*
* wakeup - Report/change current wakeup option for device
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -183,9 +183,9 @@ typedef struct pm_message {
struct dev_pm_info {
pm_message_t power_state;
unsigned can_wakeup:1;
+ unsigned should_wakeup:1;
bool sleeping:1; /* Owned by the PM core */
#ifdef CONFIG_PM_SLEEP
- unsigned should_wakeup:1;
struct list_head entry;
#endif
};
@@ -198,11 +198,6 @@ extern void device_resume(void);
extern int device_suspend(pm_message_t state);
extern int device_prepare_suspend(pm_message_t state);
-#define device_set_wakeup_enable(dev,val) \
- ((dev)->power.should_wakeup = !!(val))
-#define device_may_wakeup(dev) \
- (device_can_wakeup(dev) && (dev)->power.should_wakeup)
-
extern void __suspend_report_result(const char *function, void *fn, int ret);
#define suspend_report_result(fn, ret) \
@@ -210,6 +205,24 @@ extern void __suspend_report_result(cons
__suspend_report_result(__FUNCTION__, fn, ret); \
} while (0)
+#else /* !CONFIG_PM_SLEEP */
+
+static inline int device_suspend(pm_message_t state)
+{
+ return 0;
+}
+
+#define suspend_report_result(fn, ret) do { } while (0)
+
+#endif /* !CONFIG_PM_SLEEP */
+
+#ifdef CONFIG_PM
+
+#define device_set_wakeup_enable(dev,val) \
+ ((dev)->power.should_wakeup = !!(val))
+#define device_may_wakeup(dev) \
+ (device_can_wakeup(dev) && (dev)->power.should_wakeup)
+
/*
* Platform hook to activate device wakeup capability, if that's not already
* handled by enable_irq_wake() etc.
@@ -224,24 +237,17 @@ static inline int call_platform_enable_w
return 0;
}
-#else /* !CONFIG_PM_SLEEP */
-
-static inline int device_suspend(pm_message_t state)
-{
- return 0;
-}
+#else /* !CONFIG_PM */
#define device_set_wakeup_enable(dev,val) do{}while(0)
#define device_may_wakeup(dev) (0)
-#define suspend_report_result(fn, ret) do { } while (0)
-
static inline int call_platform_enable_wakeup(struct device *dev, int is_on)
{
return 0;
}
-#endif /* !CONFIG_PM_SLEEP */
+#endif /* !CONFIG_PM */
/* changes to device_may_wakeup take effect on the next pm state change.
* by default, devices should wakeup if they can.
Patches currently in gregkh-2.6 which might be from stern@xxxxxxxxxxxxxxxxxxx are
usb/usb-convert-usb.h-struct-usb_device-to-kernel-doc.patch
usb/usb-make-usb_storage_onetouch-available-with-pm.patch
usb/usb-usb-ohci-sm501-driver-use-the-conventional-convention-for-suspend-and-resume.patch
usb/usb-reorganize-code-in-hub.c.patch
usb/usb-ehci-carry-out-port-handover-during-each-root-hub-resume.patch
usb/usb-new-quirk-flag-to-avoid-set-interface.patch
usb/drivers-usb-core-devio.c-suppress-warning-with-64k-page_size.patch
usb/usb-make-usb-persist-work-after-every-system-sleep.patch
usb/usb-remove-config_usb_persist-setting.patch
usb/usb-check-serial-number-string-after-device-reset.patch
usb/usb-enable-usb-persist-by-default.patch
usb/usb-remove-dev-power.power_state.patch
usb/usb-isd200-fix-memory-leak-in-isd200_get_inquiry_data.patch
usb/usb-remove-experimental-tags-from-some-usb-gadget-kconfig-entries.patch
driver-core/pm-handle-device-registrations-during-suspend-resume.patch
driver-core/pm-convert-wakeup-flag-accessors-to-inline-functions.patch
driver-core/driver-core-call-device_pm_add-after-bus_add_device-in-device_add.patch
driver-core/pm-fix-misuse-of-wakeup-flag-accessors-in-serial-core.patch
driver-core/pm-make-wakeup-flags-available-whenever-config_pm-is-set.patch
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