From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F17C5C433B4 for ; Mon, 17 May 2021 09:12:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CC7FA611CA for ; Mon, 17 May 2021 09:12:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235943AbhEQJN1 (ORCPT ); Mon, 17 May 2021 05:13:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52674 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235883AbhEQJKu (ORCPT ); Mon, 17 May 2021 05:10:50 -0400 Received: from mail-pf1-x429.google.com (mail-pf1-x429.google.com [IPv6:2607:f8b0:4864:20::429]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BC4EFC061761 for ; Mon, 17 May 2021 02:09:34 -0700 (PDT) Received: by mail-pf1-x429.google.com with SMTP id q2so4474519pfh.13 for ; Mon, 17 May 2021 02:09:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=FWj877rAOrsZYk/58hMDg838A54wH0O9Rz7I1WQ+XlI=; b=tbpwHs/YPzFSMIpuO/dIVZrkP2CkLy8pAXBbgocVUys2hOUT0iZLdhc4EYmmk8bTyY yt6KadCd85UJlZr3Sx8D9v5AJXODYRmG2ncvAndEDM/0rnEDw1loT5Bw0HQEozOtg0Zv dAUeMLb9ZjDVhfbPot24KKe1IwP4SrSOXMZI5IYK42srknrN2Udu5qsdseWRnwYdrNe7 QmrkkSqa03vqQWd2e8TjP28Y/v7K9cJ9JAJp8Vvy/Sqw3bLLJ+XykTKSgecqOtXSWRWu dyh0Gl03GGMIwD+63O4ok+vS9lB9ezi7dVRvyoChBpgerx2BdW0fEB6QB651o1XINI56 2Kew== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=FWj877rAOrsZYk/58hMDg838A54wH0O9Rz7I1WQ+XlI=; b=m1MG1bo1XfcJT2nQ3ZQ2P56lTuSWXaiRPLqBH8dmFiOznNFY5UjE+IFM8Kbl65OMlT 6S5zeo9jiOtROMtkJfVcIP/cHI+pBSdLEB4zh5jXEVm6IuGyTFUJ1TK/wZygLQC/It20 +iV/229XaqpdFC+mMSDv87mXO5MbT1RIA5n99JcfUB5Qi6Z8Ihladne2tjOAXr+ZCSwN QkhvRk3qLWvkNFjPhmFvYdPj7EHYk11QE4rJbPQmiRF84/JyJL12oEh8VBYGQ8ST0xkM Awws1nrEmd9jCKxKFky/WNhbG6aXbrPGE/H5FYPMfvSKRmJpZCnzIXnof0pYGLnXOJbM hLfA== X-Gm-Message-State: AOAM532hNEkTVcT+sZZqlzIN6zxF6fXqoqNR5s8aqUv5XDX/RlpYtYIk lASGyYImmgcb4PBchJ3EOve4 X-Google-Smtp-Source: ABdhPJySGk8vPzj0Rm8EX1Z6t/75hBLp/uJPfLtkGdjb6qw/wjnkGvf5I1kGRoXNxf3S50AxrVbBxQ== X-Received: by 2002:a63:1d1f:: with SMTP id d31mr7417505pgd.199.1621242574360; Mon, 17 May 2021 02:09:34 -0700 (PDT) Received: from localhost ([139.177.225.253]) by smtp.gmail.com with ESMTPSA id q24sm10115555pjp.6.2021.05.17.02.09.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 17 May 2021 02:09:33 -0700 (PDT) From: Xie Yongji To: mst@redhat.com, jasowang@redhat.com, stefanha@redhat.com Cc: amit@kernel.org, arei.gonglei@huawei.com, airlied@linux.ie, kraxel@redhat.com, dan.j.williams@intel.com, johannes@sipsolutions.net, ohad@wizery.com, bjorn.andersson@linaro.org, david@redhat.com, vgoyal@redhat.com, miklos@szeredi.hu, sgarzare@redhat.com, virtualization@lists.linux-foundation.org, linux-kernel@vger.kernel.org Subject: [RFC PATCH 09/17] virtio_pmem: Remove unused used length Date: Mon, 17 May 2021 17:08:28 +0800 Message-Id: <20210517090836.533-10-xieyongji@bytedance.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210517090836.533-1-xieyongji@bytedance.com> References: <20210517090836.533-1-xieyongji@bytedance.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The used length is not used. Let's drop it and pass NULL to virtqueue_get_buf() instead. Signed-off-by: Xie Yongji --- drivers/nvdimm/nd_virtio.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/nvdimm/nd_virtio.c b/drivers/nvdimm/nd_virtio.c index 10351d5b49fa..f57d7663b505 100644 --- a/drivers/nvdimm/nd_virtio.c +++ b/drivers/nvdimm/nd_virtio.c @@ -15,10 +15,9 @@ void virtio_pmem_host_ack(struct virtqueue *vq) struct virtio_pmem *vpmem = vq->vdev->priv; struct virtio_pmem_request *req_data, *req_buf; unsigned long flags; - unsigned int len; spin_lock_irqsave(&vpmem->pmem_lock, flags); - while ((req_data = virtqueue_get_buf(vq, &len)) != NULL) { + while ((req_data = virtqueue_get_buf(vq, NULL)) != NULL) { req_data->done = true; wake_up(&req_data->host_acked); -- 2.11.0