Merge branches 'pm-epoll', 'pnp' and 'powercap'

* pm-epoll:
  epoll: drop EPOLLWAKEUP if PM_SLEEP is disabled

* pnp:
  PNP: fix restoring devices after hibernation

* powercap:
  PowerCap: Fix mode for energy counter

diff --git a/drivers/pnp/driver.c b/drivers/pnp/driver.c
index 6936e0acedcd6bfce4b8166bb4b8da6a922e0f47..f748cc8cbb031cf3ad3fd943688fc6172a452bd2 100644 (file)
--- a/drivers/pnp/driver.c
+++ b/drivers/pnp/driver.c
@@ -197,6 +197,11 @@ static int pnp_bus_freeze(struct device *dev)
        return __pnp_bus_suspend(dev, PMSG_FREEZE);
 }
 
+static int pnp_bus_poweroff(struct device *dev)
+{
+       return __pnp_bus_suspend(dev, PMSG_HIBERNATE);
+}
+
 static int pnp_bus_resume(struct device *dev)
 {
        struct pnp_dev *pnp_dev = to_pnp_dev(dev);
@@ -234,9 +239,14 @@ static int pnp_bus_resume(struct device *dev)
 }
 
 static const struct dev_pm_ops pnp_bus_dev_pm_ops = {
+       /* Suspend callbacks */
        .suspend = pnp_bus_suspend,
-       .freeze = pnp_bus_freeze,
        .resume = pnp_bus_resume,
+       /* Hibernate callbacks */
+       .freeze = pnp_bus_freeze,
+       .thaw = pnp_bus_resume,
+       .poweroff = pnp_bus_poweroff,
+       .restore = pnp_bus_resume,
 };
 
 struct bus_type pnp_bus_type = {

diff --git a/drivers/powercap/powercap_sys.c b/drivers/powercap/powercap_sys.c
index 8d0fe431dbdd54ef0c175c06dbbc4b5d76f6d9cd..84419af16f777095687eddb59d74c7ca6762e3bb 100644 (file)
--- a/drivers/powercap/powercap_sys.c
+++ b/drivers/powercap/powercap_sys.c
@@ -377,9 +377,14 @@ static void create_power_zone_common_attributes(
        if (power_zone->ops->get_max_energy_range_uj)
                power_zone->zone_dev_attrs[count++] =
                                        &dev_attr_max_energy_range_uj.attr;
-       if (power_zone->ops->get_energy_uj)
+       if (power_zone->ops->get_energy_uj) {
+               if (power_zone->ops->reset_energy_uj)
+                       dev_attr_energy_uj.attr.mode = S_IWUSR | S_IRUGO;
+               else
+                       dev_attr_energy_uj.attr.mode = S_IRUGO;
                power_zone->zone_dev_attrs[count++] =
                                        &dev_attr_energy_uj.attr;
+       }
        if (power_zone->ops->get_power_uw)
                power_zone->zone_dev_attrs[count++] =
                                        &dev_attr_power_uw.attr;

diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index 79b65c3b9e876f1087ccbcf7908a47c18efbbad9..8b5e2584c840903bc9aeffab1a31aa0a2149b595 100644 (file)
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -1852,8 +1852,7 @@ SYSCALL_DEFINE4(epoll_ctl, int, epfd, int, op, int, fd,
                goto error_tgt_fput;
 
        /* Check if EPOLLWAKEUP is allowed */
-       if ((epds.events & EPOLLWAKEUP) && !capable(CAP_BLOCK_SUSPEND))
-               epds.events &= ~EPOLLWAKEUP;
+       ep_take_care_of_epollwakeup(&epds);
 
        /*
         * We have to check that the file structure underneath the file descriptor

diff --git a/include/uapi/linux/eventpoll.h b/include/uapi/linux/eventpoll.h
index 2c267bcbb85c1c4e31b676127db7686d8d027e09..bc81fb2e1f0e19d363d3c8095c85b971c521d12a 100644 (file)
--- a/include/uapi/linux/eventpoll.h
+++ b/include/uapi/linux/eventpoll.h
@@ -61,5 +61,16 @@ struct epoll_event {
        __u64 data;
 } EPOLL_PACKED;
 
-
+#ifdef CONFIG_PM_SLEEP
+static inline void ep_take_care_of_epollwakeup(struct epoll_event *epev)
+{
+       if ((epev->events & EPOLLWAKEUP) && !capable(CAP_BLOCK_SUSPEND))
+               epev->events &= ~EPOLLWAKEUP;
+}
+#else
+static inline void ep_take_care_of_epollwakeup(struct epoll_event *epev)
+{
+       epev->events &= ~EPOLLWAKEUP;
+}
+#endif
 #endif /* _UAPI_LINUX_EVENTPOLL_H */