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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* android_vendor.h - Android vendor data
*
* Copyright 2020 Google LLC
*
* These macros are to be used to reserve space in kernel data structures
* for use by vendor modules.
*
* These macros should be used before the kernel abi is "frozen".
* Fields can be added to various kernel structures that need space
* for functionality implemented in vendor modules. The use of
* these fields is vendor specific.
*/
#ifndef _ANDROID_VENDOR_H
#define _ANDROID_VENDOR_H
/*
* ANDROID_VENDOR_DATA
* Reserve some "padding" in a structure for potential future use.
* This normally placed at the end of a structure.
* number: the "number" of the padding variable in the structure. Start with
* 1 and go up.
*
* ANDROID_VENDOR_DATA_ARRAY
* Same as ANDROID_VENDOR_DATA but allocates an array of u64 with
* the specified size
*/
#ifdef CONFIG_ANDROID_VENDOR_OEM_DATA
#define ANDROID_VENDOR_DATA(n) u64 android_vendor_data##n
#define ANDROID_VENDOR_DATA_ARRAY(n, s) u64 android_vendor_data##n[s]
#define ANDROID_OEM_DATA(n) u64 android_oem_data##n
#define ANDROID_OEM_DATA_ARRAY(n, s) u64 android_oem_data##n[s]
#define android_init_vendor_data(p, n) \
memset(&p->android_vendor_data##n, 0, sizeof(p->android_vendor_data##n))
#define android_init_oem_data(p, n) \
memset(&p->android_oem_data##n, 0, sizeof(p->android_oem_data##n))
#else
#define ANDROID_VENDOR_DATA(n)
#define ANDROID_VENDOR_DATA_ARRAY(n, s)
#define ANDROID_OEM_DATA(n)
#define ANDROID_OEM_DATA_ARRAY(n, s)
#define android_init_vendor_data(p, n)
#define android_init_oem_data(p, n)
#endif
#endif /* _ANDROID_VENDOR_H */