From patchwork Fri Aug 12 10:45:00 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Zhu, Lingshan" X-Patchwork-Id: 12942183 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 47EF7C25B0E for ; Fri, 12 Aug 2022 10:53:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238692AbiHLKxo (ORCPT ); Fri, 12 Aug 2022 06:53:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59922 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238635AbiHLKxd (ORCPT ); Fri, 12 Aug 2022 06:53:33 -0400 Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 767B1AB1A3; Fri, 12 Aug 2022 03:53:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1660301597; x=1691837597; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=jWNofX+dOPQkXy8PRqgVzBaCSEUE/3juZjqg4ALYZT0=; b=bRSfc8Zj9rC/j9QGseOw/oo+skLZi/wBIxE2AEa5fjtGLyPZNcJhR2Gz p6ayu0bEqCfF58m/7DQhiILBj9WA+gM8W71Yoafh854ZrIMPDlcw9qVQp KiKkJkMqwj6L0HKaHsDojgQQ5gm2KHZVghu8I4UlnWk/U1R/w2jL311u4 CM7bd5HdO4gwqfIV3MSNfQmRKMSPbnNmVYIi1tEspenvjmgheYnUNbi41 pTVvrOE0JNKPg6w1IQW5Kh/xVecMhVWWSZbe3osDQzZeZOWChtr5LAawh wF+9I3jCwqNLK9CJMk6Stj7+3yAFWvSXt0+/70OXblyxfPETuSy7PH6gk Q==; X-IronPort-AV: E=McAfee;i="6400,9594,10436"; a="271956322" X-IronPort-AV: E=Sophos;i="5.93,231,1654585200"; d="scan'208";a="271956322" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Aug 2022 03:53:17 -0700 X-IronPort-AV: E=Sophos;i="5.93,231,1654585200"; d="scan'208";a="665780627" Received: from unknown (HELO localhost.localdomain.bj.intel.com) ([10.240.193.73]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Aug 2022 03:53:14 -0700 From: Zhu Lingshan To: jasowang@redhat.com, mst@redhat.com Cc: virtualization@lists.linux-foundation.org, netdev@vger.kernel.org, kvm@vger.kernel.org, parav@nvidia.com, xieyongji@bytedance.com, gautam.dawar@amd.com, Zhu Lingshan Subject: [PATCH V5 6/6] fix 'cast to restricted le16' warnings in vdpa.c Date: Fri, 12 Aug 2022 18:45:00 +0800 Message-Id: <20220812104500.163625-7-lingshan.zhu@intel.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220812104500.163625-1-lingshan.zhu@intel.com> References: <20220812104500.163625-1-lingshan.zhu@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This commit fixes spars warnings: cast to restricted __le16 in function vdpa_dev_net_config_fill() and vdpa_fill_stats_rec() Signed-off-by: Zhu Lingshan Reviewed-by: Parav Pandit --- drivers/vdpa/vdpa.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/vdpa/vdpa.c b/drivers/vdpa/vdpa.c index f6172c8dd262..0e5fa97dfcc3 100644 --- a/drivers/vdpa/vdpa.c +++ b/drivers/vdpa/vdpa.c @@ -847,7 +847,11 @@ static int vdpa_dev_net_config_fill(struct vdpa_device *vdev, struct sk_buff *ms vdpa_get_config_unlocked(vdev, 0, &config, sizeof(config)); - val_u16 = le16_to_cpu(config.status); + /* + * Assume little endian for now, userspace can tweak this for + * legacy guest support. + */ + val_u16 = __virtio16_to_cpu(true, config.status); if (nla_put_u16(msg, VDPA_ATTR_DEV_NET_STATUS, val_u16)) return -EMSGSIZE; @@ -937,7 +941,11 @@ static int vdpa_fill_stats_rec(struct vdpa_device *vdev, struct sk_buff *msg, } vdpa_get_config_unlocked(vdev, 0, &config, sizeof(config)); - max_vqp = le16_to_cpu(config.max_virtqueue_pairs); + /* + * Assume little endian for now, userspace can tweak this for + * legacy guest support. + */ + max_vqp = __virtio16_to_cpu(true, config.max_virtqueue_pairs); if (nla_put_u16(msg, VDPA_ATTR_DEV_NET_CFG_MAX_VQP, max_vqp)) return -EMSGSIZE;