From patchwork Mon Sep 21 16:26:58 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "gregkh@linuxfoundation.org" X-Patchwork-Id: 309432 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=-11.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 D2102C43465 for ; Mon, 21 Sep 2020 16:44:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9557D239ED for ; Mon, 21 Sep 2020 16:44:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1600706658; bh=wCsmuPbGbJM63pvtALvnH6DRs9jI0ld3dXBH2vdA0ps=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=eXF3rTr4pmEObdx73i+V76iH3+G/btbYlyfwd9eVZvI52adnIMcxqVP1ZjTVadotT vmmBbpsxC39dNj1gmewOhrgNwmjk4GYVs3cOsS2JtDMmjpPwKSGEdNoc8s0E8F+1+5 GLJ+p1J6Gp0yhpSV/ghrTxfWJiQQ/oXVxIs0sUq4= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729325AbgIUQnv (ORCPT ); Mon, 21 Sep 2020 12:43:51 -0400 Received: from mail.kernel.org ([198.145.29.99]:48386 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729627AbgIUQnl (ORCPT ); Mon, 21 Sep 2020 12:43:41 -0400 Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id D85C2235F9; Mon, 21 Sep 2020 16:43:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1600706620; bh=wCsmuPbGbJM63pvtALvnH6DRs9jI0ld3dXBH2vdA0ps=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ZEsOj6g+p17upxmNHox+2ZFTC0yeVWBght49Awkq6LPJXCLRnzKoeNT9QSkBYNT0X diwxbd0t4u0Wqs+ifSkrrVL3QnYRxIv7IO4OiwIQpprYyVWGJk8eVk1g44Ys+AZdoh os5oxcsHWPyNLsnbmjGOZZkzzTplAoWKwz3V0QDg= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Haiyang Zhang , "David S. Miller" Subject: [PATCH 5.8 006/118] hv_netvsc: Remove "unlikely" from netvsc_select_queue Date: Mon, 21 Sep 2020 18:26:58 +0200 Message-Id: <20200921162036.639173063@linuxfoundation.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200921162036.324813383@linuxfoundation.org> References: <20200921162036.324813383@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Haiyang Zhang commit 4d820543c54c47a2bd3c95ddbf52f83c89a219a0 upstream. When using vf_ops->ndo_select_queue, the number of queues of VF is usually bigger than the synthetic NIC. This condition may happen often. Remove "unlikely" from the comparison of ndev->real_num_tx_queues. Fixes: b3bf5666a510 ("hv_netvsc: defer queue selection to VF") Signed-off-by: Haiyang Zhang Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/hyperv/netvsc_drv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/net/hyperv/netvsc_drv.c +++ b/drivers/net/hyperv/netvsc_drv.c @@ -367,7 +367,7 @@ static u16 netvsc_select_queue(struct ne } rcu_read_unlock(); - while (unlikely(txq >= ndev->real_num_tx_queues)) + while (txq >= ndev->real_num_tx_queues) txq -= ndev->real_num_tx_queues; return txq;