From patchwork Mon Jul 29 13:58:25 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: WangYuli X-Patchwork-Id: 13745474 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 6947CC3DA4A for ; Mon, 29 Jul 2024 16:55:34 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D6B4010E431; Mon, 29 Jul 2024 16:55:33 +0000 (UTC) Received: from bg5.exmail.qq.com (bg5.exmail.qq.com [43.154.209.5]) by gabe.freedesktop.org (Postfix) with ESMTPS id 12CEB10E06F; Mon, 29 Jul 2024 14:01:14 +0000 (UTC) X-QQ-mid: bizesmtp81t1722261547tbxomzu2 X-QQ-Originating-IP: KlOB/YbZHQp8ShWuktjn3+RmM/yq6LbsM9i04JshJ8E= Received: from localhost.localdomain ( [113.57.152.160]) by bizesmtp.qq.com (ESMTP) with id ; Mon, 29 Jul 2024 21:59:05 +0800 (CST) X-QQ-SSF: 0000000000000000000000000000000 X-QQ-GoodBg: 1 X-BIZMAIL-ID: 1796147500759734024 From: WangYuli To: alexander.deucher@amd.com, christian.koenig@amd.com, Xinhui.Pan@amd.com, airlied@gmail.com, daniel@ffwll.ch, Jingwen.Chen2@amd.com, suhui@nfschina.com, dan.carpenter@linaro.org, bokun.zhang@amd.com, wangyuli@uniontech.com, chongli2@amd.com, Luqmaan.Irshad@amd.com Cc: amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, guanwentao@uniontech.com, shaoyang@uniontech.com, hongao@uniontech.com, wenlunpeng Subject: [PATCH] drm/amd/amdgpu: Properly tune the size of struct Date: Mon, 29 Jul 2024 21:58:25 +0800 Message-ID: <2BF9FDD63BBFB1AE+20240729135825.890138-1-wangyuli@uniontech.com> X-Mailer: git-send-email 2.43.4 MIME-Version: 1.0 X-QQ-SENDSIZE: 520 Feedback-ID: bizesmtp:uniontech.com:qybglogicsvrgz:qybglogicsvrgz8a-1 X-Mailman-Approved-At: Mon, 29 Jul 2024 16:55:27 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" The struct assertion is failed because sparse cannot parse `#pragma pack(push, 1)` and `#pragma pack(pop)` correctly. GCC's output is still 1-byte-aligned. No harm to memory layout. The error can be filtered out by sparse-diff, but sometimes multiple lines queezed into one, making the sparse-diff thinks its a new error. I'm trying to aviod this by fixing errors. Link: https://lore.kernel.org/all/20230620045919.492128-1-suhui@nfschina.com/ Fixes: 1721bc1b2afa ("drm/amdgpu: Update VF2PF interface") Signed-off-by: Su Hui Signed-off-by: Dan Carpenter Signed-off-by: wenlunpeng Signed-off-by: WangYuli --- drivers/gpu/drm/amd/amdgpu/amdgv_sriovmsg.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgv_sriovmsg.h b/drivers/gpu/drm/amd/amdgpu/amdgv_sriovmsg.h index fb2b394bb9c5..6e9eeaeb3de1 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgv_sriovmsg.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgv_sriovmsg.h @@ -213,7 +213,7 @@ struct amd_sriov_msg_pf2vf_info { uint32_t gpu_capacity; /* reserved */ uint32_t reserved[256 - AMD_SRIOV_MSG_PF2VF_INFO_FILLED_SIZE]; -}; +} __packed; struct amd_sriov_msg_vf2pf_info_header { /* the total structure size in byte */ @@ -273,7 +273,7 @@ struct amd_sriov_msg_vf2pf_info { uint32_t mes_info_size; /* reserved */ uint32_t reserved[256 - AMD_SRIOV_MSG_VF2PF_INFO_FILLED_SIZE]; -}; +} __packed; /* mailbox message send from guest to host */ enum amd_sriov_mailbox_request_message {