From patchwork Wed Nov 18 17:18:26 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Antonio Cardace X-Patchwork-Id: 1402426 Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=KDhat3Ss; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4CbqL76R1zz9sW4 for ; Thu, 19 Nov 2020 04:19:27 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728251AbgKRRSt (ORCPT ); Wed, 18 Nov 2020 12:18:49 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:36799 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728242AbgKRRSs (ORCPT ); Wed, 18 Nov 2020 12:18:48 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1605719927; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=nmBUplRiGrHWbjTPVX1Ukbt0yflwFSZ4cm3S5FuFDE8=; b=KDhat3SsuaYP6r7ii8sb3IAcR6DtKZKCIMsBBwK4qNHX4X6uFNGDLvMtNHLmlEMuCtqxfU Lgn/xbfWBKoQyNobhXD67OAcooFe+peYvqF3C8aAE3gHuwivbrk0uf1n5+OxU8tSYAIKtg VwcK6YCSZAkXyi3vgSG0ij0gxF/xE2c= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-83-UQZmciETPCK_JZYP3vkHIQ-1; Wed, 18 Nov 2020 12:18:42 -0500 X-MC-Unique: UQZmciETPCK_JZYP3vkHIQ-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 3E8431005D4E; Wed, 18 Nov 2020 17:18:41 +0000 (UTC) Received: from yoda.fritz.box (unknown [10.40.195.78]) by smtp.corp.redhat.com (Postfix) with ESMTP id 11E1260843; Wed, 18 Nov 2020 17:18:39 +0000 (UTC) From: Antonio Cardace To: netdev@vger.kernel.org, "David S . Miller" , Jakub Kicinski , Michal Kubecek Subject: [PATCH net-next v5 5/6] selftests: refactor get_netdev_name function Date: Wed, 18 Nov 2020 18:18:26 +0100 Message-Id: <20201118171827.48143-6-acardace@redhat.com> In-Reply-To: <20201118171827.48143-1-acardace@redhat.com> References: <20201118171827.48143-1-acardace@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org As pointed out by Michal Kubecek, getting the name with the previous approach was racy, it's better and easier to get the name of the device with this patch's approach. Essentialy the function doesn't need to exist anymore as it's a simple 'ls' command. Signed-off-by: Antonio Cardace --- v4 -> v5 - changed echo '$(ls /sys/bus/netdevsim/devices/netdevsim${NSIM_ID}/net/)' to just 'ls /sys/bus/netdevsim/devices/netdevsim${NSIM_ID}/net/' --- .../drivers/net/netdevsim/ethtool-common.sh | 20 ++----------------- 1 file changed, 2 insertions(+), 18 deletions(-) -- 2.28.0 diff --git a/tools/testing/selftests/drivers/net/netdevsim/ethtool-common.sh b/tools/testing/selftests/drivers/net/netdevsim/ethtool-common.sh index fa44cf6e732c..9f64d5c7107b 100644 --- a/tools/testing/selftests/drivers/net/netdevsim/ethtool-common.sh +++ b/tools/testing/selftests/drivers/net/netdevsim/ethtool-common.sh @@ -20,23 +20,6 @@ function cleanup { trap cleanup EXIT -function get_netdev_name { - local -n old=$1 - - new=$(ls /sys/class/net) - - for netdev in $new; do - for check in $old; do - [ $netdev == $check ] && break - done - - if [ $netdev != $check ]; then - echo $netdev - break - fi - done -} - function check { local code=$1 local str=$2 @@ -65,5 +48,6 @@ function make_netdev { fi echo $NSIM_ID > /sys/bus/netdevsim/new_device - echo `get_netdev_name old_netdevs` + # get new device name + ls /sys/bus/netdevsim/devices/netdevsim${NSIM_ID}/net/ }