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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 */
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