From: Qinxin Xia <xiaqinxin@huawei.com>
To: <baohua@kernel.org>, <xiaqinxin@huawei.com>
Cc: <yangyicong@huawei.com>, <hch@lst.de>, <iommu@lists.linux.dev>,
<jonathan.cameron@huawei.com>, <prime.zeng@huawei.com>,
<fanghao11@huawei.com>, <linux-kernel@vger.kernel.org>,
<linuxarm@huawei.com>
Subject: [PATCH v2 1/4] dma-mapping: benchmark: Add padding to ensure uABI remained consistent
Date: Tue, 6 May 2025 11:00:57 +0800 [thread overview]
Message-ID: <20250506030100.394376-2-xiaqinxin@huawei.com> (raw)
In-Reply-To: <20250506030100.394376-1-xiaqinxin@huawei.com>
Fix a problem about commit (8ddde07a3d285a0f3cec, "dma-mapping:benchmark:
extract a common header file for map_benchmark definition") accidentally
removed that padding, which has completely broken the ABIs.
Signed-off-by: Qinxin Xia <xiaqinxin@huawei.com>
---
include/linux/map_benchmark.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/linux/map_benchmark.h b/include/linux/map_benchmark.h
index 62674c83bde4..2ac2fe52f248 100644
--- a/include/linux/map_benchmark.h
+++ b/include/linux/map_benchmark.h
@@ -27,5 +27,6 @@ struct map_benchmark {
__u32 dma_dir; /* DMA data direction */
__u32 dma_trans_ns; /* time for DMA transmission in ns */
__u32 granule; /* how many PAGE_SIZE will do map/unmap once a time */
+ __u8 expansion[76]; /* For future use */
};
#endif /* _KERNEL_DMA_BENCHMARK_H */
--
2.33.0
next prev parent reply other threads:[~2025-05-06 3:01 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-06 3:00 [PATCH v2 0/4] dma mapping benchmark: add support for dma_map_sg Qinxin Xia
2025-05-06 3:00 ` Qinxin Xia [this message]
2025-05-07 1:52 ` [PATCH v2 1/4] dma-mapping: benchmark: Add padding to ensure uABI remained consistent Barry Song
2025-05-07 2:08 ` Barry Song
2025-05-07 9:10 ` Qinxin Xia
2025-05-07 9:09 ` Qinxin Xia
2025-05-06 3:00 ` [PATCH v2 2/4] dma mapping benchmark: modify the framework to adapt to more map modes Qinxin Xia
2025-05-07 2:30 ` Barry Song
2025-05-07 9:14 ` Qinxin Xia
2025-05-06 3:00 ` [PATCH v2 3/4] dma-mapping: benchmark: add support for dma_map_sg Qinxin Xia
2025-05-07 2:39 ` Barry Song
2025-05-07 9:17 ` Qinxin Xia
2025-05-06 3:01 ` [PATCH v2 4/4] dma mapping benchmark:add " Qinxin Xia
2025-05-07 2:44 ` Barry Song
2025-05-07 9:18 ` Qinxin Xia
2025-05-06 12:20 ` [PATCH v2 0/4] dma mapping benchmark: add " ALOK TIWARI
2025-05-06 12:25 ` Qinxin Xia
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