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ANDROID: GKI: add some padding to some driver core structures

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These structures are fundamental to implementing fw_devlink and
sync_state(). Since they are still evolving, add some padding in case we
need to backport any important bug fixes.

	struct device_link
	struct class
	struct fwnode_handle
	struct fwnode_link

Bug: 183615740
Signed-off-by: Saravana Kannan <saravanak@google.com>
Change-Id: Id9daf7cf9ae5d94fb0134144f8220a241ccbaef8
This commit is contained in:
Saravana Kannan
2021-03-24 09:22:59 -07:00
parent 2fa0951b66
commit 54539dfef4
3 changed files with 9 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
include/linux/device.h
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@@ -582,6 +582,8 @@ struct device_link {
struct rcu_head rcu_head;
#endif
bool supplier_preactivated; /* Owned by consumer probe. */
ANDROID_KABI_RESERVE(1);
ANDROID_KABI_RESERVE(2);
};
static inline struct device *kobj_to_dev(struct kobject *kobj)

2
include/linux/device/class.h
View File

@@ -18,6 +18,7 @@
#include <linux/klist.h>
#include <linux/pm.h>
#include <linux/device/bus.h>
#include <linux/android_kabi.h>
struct device;
struct fwnode_handle;
@@ -75,6 +76,7 @@ struct class {
const struct dev_pm_ops *pm;
struct subsys_private *p;
ANDROID_KABI_RESERVE(1);
};
struct class_dev_iter {

5
include/linux/fwnode.h
View File

@@ -12,6 +12,7 @@
#include <linux/types.h>
#include <linux/list.h>
#include <linux/err.h>
#include <linux/android_kabi.h>
struct fwnode_operations;
struct device;
@@ -34,6 +35,7 @@ struct fwnode_handle {
struct list_head suppliers;
struct list_head consumers;
u8 flags;
ANDROID_KABI_RESERVE(1);
};
struct fwnode_link {
@@ -41,6 +43,9 @@ struct fwnode_link {
struct list_head s_hook;
struct fwnode_handle *consumer;
struct list_head c_hook;
ANDROID_KABI_RESERVE(1);
ANDROID_KABI_RESERVE(2);
ANDROID_KABI_RESERVE(3);
};
/**