From nobody Sun Apr 26 21:28:30 2026 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 8FBD4C433EF for ; Wed, 22 Jun 2022 08:29:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1352141AbiFVI3f (ORCPT ); Wed, 22 Jun 2022 04:29:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50982 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1355420AbiFVI24 (ORCPT ); Wed, 22 Jun 2022 04:28:56 -0400 Received: from ssh248.corpemail.net (ssh248.corpemail.net [210.51.61.248]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D3E2F38D8D for ; Wed, 22 Jun 2022 01:27:49 -0700 (PDT) Received: from ([60.208.111.195]) by ssh248.corpemail.net ((D)) with ASMTP (SSL) id RGY00035; Wed, 22 Jun 2022 16:27:35 +0800 Received: from localhost.localdomain (10.200.104.82) by jtjnmail201610.home.langchao.com (10.100.2.10) with Microsoft SMTP Server id 15.1.2308.27; Wed, 22 Jun 2022 16:27:36 +0800 From: Deming Wang To: , CC: , , Deming Wang Subject: [PATCH] virtio_ring: remove unnecessary to_vvq call in poll_packed Date: Wed, 22 Jun 2022 04:27:35 -0400 Message-ID: <20220622082735.1780-1-wangdeming@inspur.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.200.104.82] tUid: 202262216273535ccf849eb8e6e404e80fec5e573b8c6 X-Abuse-Reports-To: service@corp-email.com Abuse-Reports-To: service@corp-email.com X-Complaints-To: service@corp-email.com X-Report-Abuse-To: service@corp-email.com Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" It passes '_vq' to virtqueue_use_indirect(), which still calls to_vvq to get 'vq', let's directly pass 'vq'. It can avoid unnecessary call of to_vvq in virtqueue_poll_packed. Signed-off-by: Deming Wang --- drivers/virtio/virtio_ring.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index 13a7348cedff..cb6323e0088b 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -1522,9 +1522,8 @@ static unsigned int virtqueue_enable_cb_prepare_packe= d(struct virtqueue *_vq) VRING_PACKED_EVENT_F_WRAP_CTR); } =20 -static bool virtqueue_poll_packed(struct virtqueue *_vq, u16 off_wrap) +static bool virtqueue_poll_packed(struct vring_virtqueue *vq, u16 off_wrap) { - struct vring_virtqueue *vq =3D to_vvq(_vq); bool wrap_counter; u16 used_idx; =20 @@ -2054,7 +2053,7 @@ bool virtqueue_poll(struct virtqueue *_vq, unsigned i= nt last_used_idx) return false; =20 virtio_mb(vq->weak_barriers); - return vq->packed_ring ? virtqueue_poll_packed(_vq, last_used_idx) : + return vq->packed_ring ? virtqueue_poll_packed(vq, last_used_idx) : virtqueue_poll_split(_vq, last_used_idx); } EXPORT_SYMBOL_GPL(virtqueue_poll); --=20 2.27.0