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authorLinus Torvalds <torvalds@linux-foundation.org>2014-06-03 08:07:41 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-06-03 08:07:41 -0700
commit5da77761e6fd51f633b4f31051c4f839e01c29c0 (patch)
tree35c73a75901e9bc3a2e1489072ab32f107a085cb /drivers/base
parent4046136afbd1038d776bad9c59e1e4cca78186fb (diff)
parentcda43576afa641d83ae268cb9795ae2a549d53d9 (diff)
downloadop-kernel-dev-5da77761e6fd51f633b4f31051c4f839e01c29c0.zip
op-kernel-dev-5da77761e6fd51f633b4f31051c4f839e01c29c0.tar.gz
Merge tag 'driver-core-3.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core into next
Pull driver core / kernfs changes from Greg KH: "Here is the "big" pull request for 3.16-rc1. Not a lot of changes here, some kernfs work, a revert of a very old driver core change that ended up cauing some memory leaks on driver probe error paths, and other minor things. As was pointed out earlier today, one commit here, 26fc9cd200ec ("kernfs: move the last knowledge of sysfs out from kernfs") is also needed in your 3.15-final branch as well. If you could cherry-pick it there, it would be most appreciated by Andy Lutomirski to prevent a regression there. All of these have been in linux-next for a while" * tag 'driver-core-3.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: crypto/nx/nx-842: dev_set_drvdata can no longer fail kernfs: move the last knowledge of sysfs out from kernfs sysfs: fix attribute_group bin file path on removal sysfs.h: don't return a void-valued expression in sysfs_remove_file init.h: Update initcall_sync variants to fix build errors driver core: Inline dev_set/get_drvdata driver core: dev_get_drvdata: Don't check for NULL dev driver core: dev_set_drvdata returns void driver core: dev_set_drvdata can no longer fail driver core: Move driver_data back to struct device lib/devres.c: fix checkpatch warnings lib/devres.c: use dev in devm_request_and_ioremap kobject: Make support for uevent_helper optional. kernfs: make kernfs_notify() trigger inotify events too kernfs: implement kernfs_root->supers list
Diffstat (limited to 'drivers/base')
-rw-r--r--drivers/base/Kconfig17
-rw-r--r--drivers/base/base.h3
-rw-r--r--drivers/base/dd.c26
3 files changed, 11 insertions, 35 deletions
diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig
index 8fa8dea..4b7b452 100644
--- a/drivers/base/Kconfig
+++ b/drivers/base/Kconfig
@@ -1,10 +1,10 @@
menu "Generic Driver Options"
-config UEVENT_HELPER_PATH
- string "path to uevent helper"
- default ""
+config UEVENT_HELPER
+ bool "Support for uevent helper"
+ default y
help
- Path to uevent helper program forked by the kernel for
+ The uevent helper program is forked by the kernel for
every uevent.
Before the switch to the netlink-based uevent source, this was
used to hook hotplug scripts into kernel device events. It
@@ -15,8 +15,13 @@ config UEVENT_HELPER_PATH
that it creates a high system load, or on smaller systems
it is known to create out-of-memory situations during bootup.
- To disable user space helper program execution at early boot
- time specify an empty string here. This setting can be altered
+config UEVENT_HELPER_PATH
+ string "path to uevent helper"
+ depends on UEVENT_HELPER
+ default ""
+ help
+ To disable user space helper program execution at by default
+ specify an empty string here. This setting can still be altered
via /proc/sys/kernel/hotplug or via /sys/kernel/uevent_helper
later at runtime.
diff --git a/drivers/base/base.h b/drivers/base/base.h
index 24f4242..251c5d3 100644
--- a/drivers/base/base.h
+++ b/drivers/base/base.h
@@ -63,8 +63,6 @@ struct driver_private {
* binding of drivers which were unable to get all the resources needed by
* the device; typically because it depends on another driver getting
* probed first.
- * @driver_data - private pointer for driver specific info. Will turn into a
- * list soon.
* @device - pointer back to the struct class that this structure is
* associated with.
*
@@ -76,7 +74,6 @@ struct device_private {
struct klist_node knode_driver;
struct klist_node knode_bus;
struct list_head deferred_probe;
- void *driver_data;
struct device *device;
};
#define to_device_private_parent(obj) \
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index 62ec61e..e4ffbcf 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -587,29 +587,3 @@ void driver_detach(struct device_driver *drv)
put_device(dev);
}
}
-
-/*
- * These exports can't be _GPL due to .h files using this within them, and it
- * might break something that was previously working...
- */
-void *dev_get_drvdata(const struct device *dev)
-{
- if (dev && dev->p)
- return dev->p->driver_data;
- return NULL;
-}
-EXPORT_SYMBOL(dev_get_drvdata);
-
-int dev_set_drvdata(struct device *dev, void *data)
-{
- int error;
-
- if (!dev->p) {
- error = device_private_init(dev);
- if (error)
- return error;
- }
- dev->p->driver_data = data;
- return 0;
-}
-EXPORT_SYMBOL(dev_set_drvdata);
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