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ANDROID: GKI: dma-mapping.h: add Android ABI padding to a structure

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Try to mitigate potential future driver core api changes by adding a
padding to struct dma_map_ops.

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

Bug: 151154716
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Icbec584dee3716f341a7831a4810025f690eab4a
This commit is contained in:
Greg Kroah-Hartman 2020-05-02 09:36:40 +02:00
parent 3b620d30bc
commit f56c02e19d
1 changed files with 6 additions and 0 deletions
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6
include/linux/dma-mapping.h
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@ -11,6 +11,7 @@
#include <linux/scatterlist.h>
#include <linux/bug.h>
#include <linux/mem_encrypt.h>
#include <linux/android_kabi.h>
/**
* List of possible attributes associated with a DMA mapping. The semantics
@ -190,6 +191,11 @@ struct dma_map_ops {
#ifdef ARCH_HAS_DMA_GET_REQUIRED_MASK
u64 (*get_required_mask)(struct device *dev);
#endif
ANDROID_KABI_RESERVE(1);
ANDROID_KABI_RESERVE(2);
ANDROID_KABI_RESERVE(3);
ANDROID_KABI_RESERVE(4);
};
extern const struct dma_map_ops dma_direct_ops;