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ANDROID: add kabi padding for structures for the android12 release

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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
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12
include/linux/blkdev.h
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@@ -26,6 +26,7 @@
#include <linux/scatterlist.h>
#include <linux/blkzoned.h>
#include <linux/pm.h>
#include <linux/android_kabi.h>
struct module;
struct scsi_ioctl_command;
@@ -242,6 +243,8 @@ struct request {
*/
rq_end_io_fn *end_io;
void *end_io_data;
ANDROID_KABI_RESERVE(1);
};
static inline bool blk_op_is_scsi(unsigned int op)
@@ -346,6 +349,8 @@ struct queue_limits {
unsigned char discard_misaligned;
unsigned char raid_partial_stripes_expensive;
enum blk_zoned_model zoned;
ANDROID_KABI_RESERVE(1);
};
typedef int (*report_zones_cb)(struct blk_zone *zone, unsigned int idx,
@@ -589,6 +594,10 @@ struct request_queue {
#define BLK_MAX_WRITE_HINTS 5
u64 write_hints[BLK_MAX_WRITE_HINTS];
ANDROID_KABI_RESERVE(1);
ANDROID_KABI_RESERVE(2);
ANDROID_KABI_RESERVE(3);
ANDROID_KABI_RESERVE(4);
ANDROID_OEM_DATA(1);
};
@@ -1858,6 +1867,9 @@ struct block_device_operations {
char *(*devnode)(struct gendisk *disk, umode_t *mode);
struct module *owner;
const struct pr_ops *pr_ops;
ANDROID_KABI_RESERVE(1);
ANDROID_KABI_RESERVE(2);
};
#ifdef CONFIG_COMPAT