From nobody Mon Feb 9 18:01:21 2026 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1363F2ED065 for ; Tue, 6 May 2025 03:01:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.187 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746500467; cv=none; b=tLylRmTxe5RxXK8fybCrtuiFOvCPMeCqGZ2TE1qOUveVDgyZ/3U86ZmO91p0HL+2Ba/4Y6XCSkqB8TVxi7tPzCi0d/0Q6CMp9U7ivsTm1KUOPKw7ZXl6SKqTANmVHH0fCOz+ynd4G1qYr2gTEIpfgjKnz4EKZkI5MG0Ah24egAs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746500467; c=relaxed/simple; bh=YSXb+HAe5RzNl6xB9OxpaEV5fxxjpxEx4rsX6iAMgMk=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=sA5YRcvCe6MLiPvfDL7SRpTXQYUbZZ/u7fzSAk9+zbRGcrMNQsrX/QE/3suTzpPcEoZqIU0iXvgyhIrL+YxkXKbJSPb3DsQuPxytKzi5eL9p7dSQarEqCj19f35Bybl4xjAEjWMV3VyEONcwpgZgRJ5kKYemZ33xa1uhPOCPG3I= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=45.249.212.187 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.19.163.48]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4Zs32S0gftzyVKW; Tue, 6 May 2025 10:56:48 +0800 (CST) Received: from kwepemj200003.china.huawei.com (unknown [7.202.194.15]) by mail.maildlp.com (Postfix) with ESMTPS id E7AC21800B1; Tue, 6 May 2025 11:01:02 +0800 (CST) Received: from localhost.huawei.com (10.90.30.45) by kwepemj200003.china.huawei.com (7.202.194.15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Tue, 6 May 2025 11:01:02 +0800 From: Qinxin Xia To: , CC: , , , , , , , Subject: [PATCH v2 1/4] dma-mapping: benchmark: Add padding to ensure uABI remained consistent Date: Tue, 6 May 2025 11:00:57 +0800 Message-ID: <20250506030100.394376-2-xiaqinxin@huawei.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20250506030100.394376-1-xiaqinxin@huawei.com> References: <20250506030100.394376-1-xiaqinxin@huawei.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To kwepemj200003.china.huawei.com (7.202.194.15) Content-Type: text/plain; charset="utf-8" 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 --- 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 */ --=20 2.33.0