From patchwork Mon Aug 24 16:21:11 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Simon Wunderlich X-Patchwork-Id: 1350514 X-Patchwork-Delegate: davem@davemloft.net 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=none (p=none dis=none) header.from=simonwunderlich.de Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4BZyLc4D5Jz9sRK for ; Tue, 25 Aug 2020 02:31:36 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728140AbgHXQbW (ORCPT ); Mon, 24 Aug 2020 12:31:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52868 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728145AbgHXQas (ORCPT ); Mon, 24 Aug 2020 12:30:48 -0400 Received: from simonwunderlich.de (packetmixer.de [IPv6:2001:4d88:2000:24::c0de]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 925D8C061575 for ; Mon, 24 Aug 2020 09:30:47 -0700 (PDT) Received: from kero.packetmixer.de (p200300c5970d68d0e0160e8a82c5fd76.dip0.t-ipconnect.de [IPv6:2003:c5:970d:68d0:e016:e8a:82c5:fd76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by simonwunderlich.de (Postfix) with ESMTPSA id 64F0E6206D; Mon, 24 Aug 2020 18:21:15 +0200 (CEST) From: Simon Wunderlich To: davem@davemloft.net Cc: netdev@vger.kernel.org, b.a.t.m.a.n@lists.open-mesh.org, Jussi Kivilinna , Sven Eckelmann , Simon Wunderlich Subject: [PATCH 3/3] batman-adv: bla: use netif_rx_ni when not in interrupt context Date: Mon, 24 Aug 2020 18:21:11 +0200 Message-Id: <20200824162111.29220-4-sw@simonwunderlich.de> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200824162111.29220-1-sw@simonwunderlich.de> References: <20200824162111.29220-1-sw@simonwunderlich.de> MIME-Version: 1.0 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Jussi Kivilinna batadv_bla_send_claim() gets called from worker thread context through batadv_bla_periodic_work(), thus netif_rx_ni needs to be used in that case. This fixes "NOHZ: local_softirq_pending 08" log messages seen when batman-adv is enabled. Fixes: 23721387c409 ("batman-adv: add basic bridge loop avoidance code") Signed-off-by: Jussi Kivilinna Signed-off-by: Sven Eckelmann Signed-off-by: Simon Wunderlich --- net/batman-adv/bridge_loop_avoidance.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/net/batman-adv/bridge_loop_avoidance.c b/net/batman-adv/bridge_loop_avoidance.c index 91a04ca373dc..8500f56cbd10 100644 --- a/net/batman-adv/bridge_loop_avoidance.c +++ b/net/batman-adv/bridge_loop_avoidance.c @@ -437,7 +437,10 @@ static void batadv_bla_send_claim(struct batadv_priv *bat_priv, u8 *mac, batadv_add_counter(bat_priv, BATADV_CNT_RX_BYTES, skb->len + ETH_HLEN); - netif_rx(skb); + if (in_interrupt()) + netif_rx(skb); + else + netif_rx_ni(skb); out: if (primary_if) batadv_hardif_put(primary_if);