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ANDROID: GKI: scsi: add Android ABI padding to some structures

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Try to mitigate potential future driver core api changes by adding a
padding to struct scsi_cmnd, struct scsi_device, and struct
scsi_host_template.

Based on a change made to the RHEL/CENTOS 8 kernel.

Bug: 151154716
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ie6a2b91970e8f9063bf00e96a0dff661f77b8e8d
This commit is contained in:
Greg Kroah-Hartman
2020-04-22 15:35:08 +02:00
committed by Todd Kjos
parent 33175403b9
commit 1b79ef2754
3 changed files with 19 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
include/scsi/scsi_cmnd.h
View File

@@ -11,6 +11,7 @@
#include <linux/scatterlist.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_request.h>
#include <linux/android_kabi.h>
struct Scsi_Host;
struct scsi_driver;
@@ -142,6 +143,11 @@ struct scsi_cmnd {
unsigned char tag; /* SCSI-II queued command tag */
unsigned int extra_len; /* length of alignment and padding */
ANDROID_KABI_RESERVE(1);
ANDROID_KABI_RESERVE(2);
ANDROID_KABI_RESERVE(3);
ANDROID_KABI_RESERVE(4);
};
/*

7
include/scsi/scsi_device.h
View File

@@ -8,6 +8,7 @@
#include <linux/blkdev.h>
#include <scsi/scsi.h>
#include <linux/atomic.h>
#include <linux/android_kabi.h>
struct device;
struct request_queue;
@@ -237,6 +238,12 @@ struct scsi_device {
struct mutex state_mutex;
enum scsi_device_state sdev_state;
struct task_struct *quiesced_by;
ANDROID_KABI_RESERVE(1);
ANDROID_KABI_RESERVE(2);
ANDROID_KABI_RESERVE(3);
ANDROID_KABI_RESERVE(4);
unsigned long sdev_data[];
} __attribute__((aligned(sizeof(unsigned long))));

6
include/scsi/scsi_host.h
View File

@@ -10,6 +10,7 @@
#include <linux/seq_file.h>
#include <linux/blk-mq.h>
#include <scsi/scsi.h>
#include <linux/android_kabi.h>
struct block_device;
struct completion;
@@ -486,6 +487,11 @@ struct scsi_host_template {
/* Delay for runtime autosuspend */
int rpm_autosuspend_delay;
ANDROID_KABI_RESERVE(1);
ANDROID_KABI_RESERVE(2);
ANDROID_KABI_RESERVE(3);
ANDROID_KABI_RESERVE(4);
};
/*