From 81ab76022496d200adc3b8a92edc23967dfec04d Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@google.com>
Date: Fri, 23 Apr 2021 13:36:07 +0200
Subject: [PATCH] ANDROID: GKI: dwc3: add Android ABI padding to some
 structures

Try to mitigate potential future driver core api changes by adding
padding to a number of dwc3 structures.

Bug: 151154716
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I1826d885e3acf1f378d0e30b1ca2ddc56b16a9e4
---
 drivers/usb/dwc3/core.h | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index ea847b21b275..5a97830916b9 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -22,6 +22,7 @@
 #include <linux/debugfs.h>
 #include <linux/wait.h>
 #include <linux/workqueue.h>
+#include <linux/android_kabi.h>
 
 #include <linux/usb/ch9.h>
 #include <linux/usb/gadget.h>
@@ -661,6 +662,8 @@ struct dwc3_event_buffer {
 	dma_addr_t		dma;
 
 	struct dwc3		*dwc;
+
+	ANDROID_KABI_RESERVE(1);
 };
 
 #define DWC3_EP_FLAG_STALLED	BIT(0)
@@ -754,6 +757,9 @@ struct dwc3_ep {
 	/* For isochronous START TRANSFER workaround only */
 	u8			combo_num;
 	int			start_cmd_status;
+
+	ANDROID_KABI_RESERVE(1);
+	ANDROID_KABI_RESERVE(2);
 };
 
 enum dwc3_phy {
@@ -864,6 +870,9 @@ struct dwc3_hwparams {
 	u32	hwparams7;
 	u32	hwparams8;
 	u32	hwparams9;
+
+	ANDROID_KABI_RESERVE(1);
+	ANDROID_KABI_RESERVE(2);
 };
 
 /* HWPARAMS0 */
@@ -934,6 +943,9 @@ struct dwc3_request {
 	unsigned int		needs_extra_trb:1;
 	unsigned int		direction:1;
 	unsigned int		mapped:1;
+
+	ANDROID_KABI_RESERVE(1);
+	ANDROID_KABI_RESERVE(2);
 };
 
 /*
@@ -1286,6 +1298,11 @@ struct dwc3 {
 	unsigned		dis_split_quirk:1;
 
 	u16			imod_interval;
+
+	ANDROID_KABI_RESERVE(1);
+	ANDROID_KABI_RESERVE(2);
+	ANDROID_KABI_RESERVE(3);
+	ANDROID_KABI_RESERVE(4);
 };
 
 #define INCRX_BURST_MODE 0