xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ANDROID: add kabi padding for structures for the android12 release

Browse Source 
There are a lot of different structures that need to have a "frozen" abi
for the next 5+ years.  Add padding to a lot of them in order to be able
to handle any future changes that might be needed due to LTS and
security fixes that might come up.

It's a best guess, based on what has happened in the past from the
5.4.0..5.4.129 release (1 1/2 years).  Yes, past changes do not mean
that future changes will also be needed in the same area, but that is a
hint that those areas are both well maintained and looked after, and
there have been previous problems found in them.

Also the list of structures that are being required based on OEM usage
in the android/ symbol lists were consulted as that's a larger list than
what has been changed in the past.

Hopefully we caught everything we need to worry about, only time will
tell...

Bug: 151154716
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I880bbcda0628a7459988eeb49d18655522697664
This commit is contained in:
Greg Kroah-Hartman
2021-07-02 15:58:26 +02:00
committed by Todd Kjos
parent 429c78f9b0
commit 37485a3025
84 changed files with 606 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
include/linux/backing-dev-defs.h
View File

@@ -13,6 +13,7 @@
#include <linux/workqueue.h>
#include <linux/kref.h>
#include <linux/refcount.h>
#include <linux/android_kabi.h>
struct page;
struct device;
@@ -160,6 +161,9 @@ struct bdi_writeback {
struct rcu_head rcu;
};
#endif
ANDROID_KABI_RESERVE(1);
ANDROID_KABI_RESERVE(2);
};
struct backing_dev_info {
@@ -198,6 +202,9 @@ struct backing_dev_info {
#ifdef CONFIG_DEBUG_FS
struct dentry *debug_dir;
#endif
ANDROID_KABI_RESERVE(1);
ANDROID_KABI_RESERVE(2);
};
enum {