From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.8]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AD08C2877D6 for ; Tue, 3 Feb 2026 11:33:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.8 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770118432; cv=none; b=dLQgyUffkLaeiei+RNq4OcFblHoowDtnOtCazCBoXwpsH6PWEr2ig5YiPck/pS5lbpLuVmuL8kKWOTHfr4nesTfV2uI4v/JP6G894wwv4/VQKm2aaSSy/9ir/MI6K3r2n2adsvTjn+inbttxnWf2cdzpo7UyJ89uHsKgq1iMsEY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770118432; c=relaxed/simple; bh=xlu7LoTEstWjiNJRTJ9vJS+ZSAuiYIavZPr2kG3hUWk=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=u60PD3W2HUSTYyX+PlAiFQHjNth1XuJxQhmNaI8TDMoRe+s8nNkNNhnZx3aaRf1qpTFjReSuH9mvfKPotKcbZZKHWYPnDg+DISGfH2e+nDz+xVPX++itxL9YhfWSJwi/9HAdHky3Bi6I91c667RbQo/Iey38YUhXm3mZxUM67Zs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=jvyTNAoE; arc=none smtp.client-ip=192.198.163.8 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="jvyTNAoE" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1770118430; x=1801654430; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=xlu7LoTEstWjiNJRTJ9vJS+ZSAuiYIavZPr2kG3hUWk=; b=jvyTNAoE9xYMgDBQ3pFYAmVkocvw3HUzhkH4WUlFFmxNohG0Z6DHfS0n 8l/UnAjgbKBZiBeCfvWRfTOC5i9zlg526I/a1FOx6TDlDKEPTl5nUc5TS Ec9AxpEt3045XZTjpLMk/32cJtT+1sajNLTWkx165yGsKXc53WPZWSHIP kRoey7rX7i1+kioPIhWvPIKfyv64Ft5Vs/xjVADVvWY/2CarC+qYT2snS JCNCu2Mo35w+U9GE7TozllxxcXdZrFvsSlPZvZx0EIzf/Hi1zqtbi/dgF c/C31Ze+fC/lMCzCxgYev2m+F4/bE3P4mwmDlOJz2IhqAogcUB0N96J5/ g==; X-CSE-ConnectionGUID: Ti7PSuoZTiuV/FhjPO0sjw== X-CSE-MsgGUID: CKaZoVewSv+CfwWoNf6arQ== X-IronPort-AV: E=McAfee;i="6800,10657,11690"; a="88862044" X-IronPort-AV: E=Sophos;i="6.21,270,1763452800"; d="scan'208";a="88862044" Received: from fmviesa003.fm.intel.com ([10.60.135.143]) by fmvoesa102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Feb 2026 03:33:50 -0800 X-CSE-ConnectionGUID: DjpZi5DRQvyoB426zvZieQ== X-CSE-MsgGUID: Qvqb8fTsQSG2xQtlUdgghA== X-ExtLoop1: 1 Received: from igk-lkp-server01.igk.intel.com (HELO afc5bfd7f602) ([10.211.93.152]) by fmviesa003.fm.intel.com with ESMTP; 03 Feb 2026 03:33:49 -0800 Received: from kbuild by afc5bfd7f602 with local (Exim 4.98.2) (envelope-from ) id 1vnEfB-000000003Mf-3Mda; Tue, 03 Feb 2026 11:33:45 +0000 Date: Tue, 3 Feb 2026 12:33:19 +0100 From: kernel test robot To: Murari Prasad Samal , netdev@vger.kernel.org Cc: oe-kbuild-all@lists.linux.dev, andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, Murari Prasad Samal Subject: Re: [PATCH] net: ifb: record drop reason when redirect device is missing Message-ID: <202602031242.kPM0xECv-lkp@intel.com> References: <20260202191135.7668-1-murariprasadsamal57@gmail.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260202191135.7668-1-murariprasadsamal57@gmail.com> Hi Murari, kernel test robot noticed the following build errors: [auto build test ERROR on net/main] [also build test ERROR on net-next/main linus/master v6.19-rc8 next-20260202] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Murari-Prasad-Samal/net-ifb-record-drop-reason-when-redirect-device-is-missing/20260203-031526 base: net/main patch link: https://lore.kernel.org/r/20260202191135.7668-1-murariprasadsamal57%40gmail.com patch subject: [PATCH] net: ifb: record drop reason when redirect device is missing config: i386-allnoconfig-bpf (https://download.01.org/0day-ci/archive/20260203/202602031242.kPM0xECv-lkp@intel.com/config) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260203/202602031242.kPM0xECv-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202602031242.kPM0xECv-lkp@intel.com/ All errors (new ones prefixed by >>): >> drivers/net/ifb.c:118:26: error: use of undeclared identifier 'SKB_DROP_REASON_NO_DEV'; did you mean 'SKB_DROP_REASON_NOMEM'? 118 | kfree_skb_reason(skb, SKB_DROP_REASON_NO_DEV); | ^~~~~~~~~~~~~~~~~~~~~~ | SKB_DROP_REASON_NOMEM ./include/net/dropreason-core.h:446:2: note: 'SKB_DROP_REASON_NOMEM' declared here 446 | SKB_DROP_REASON_NOMEM, | ^ 1 error generated. vim +118 drivers/net/ifb.c 88 89 static void ifb_ri_tasklet(struct tasklet_struct *t) 90 { 91 struct ifb_q_private *txp = from_tasklet(txp, t, ifb_tasklet); 92 struct netdev_queue *txq; 93 struct sk_buff *skb; 94 95 txq = netdev_get_tx_queue(txp->dev, txp->txqnum); 96 skb = skb_peek(&txp->tq); 97 if (!skb) { 98 if (!__netif_tx_trylock(txq)) 99 goto resched; 100 skb_queue_splice_tail_init(&txp->rq, &txp->tq); 101 __netif_tx_unlock(txq); 102 } 103 104 while ((skb = __skb_dequeue(&txp->tq)) != NULL) { 105 /* Skip tc and netfilter to prevent redirection loop. */ 106 skb->redirected = 0; 107 #ifdef CONFIG_NET_CLS_ACT 108 skb->tc_skip_classify = 1; 109 #endif 110 nf_skip_egress(skb, true); 111 112 ifb_update_q_stats(&txp->tx_stats, skb->len); 113 114 rcu_read_lock(); 115 skb->dev = dev_get_by_index_rcu(dev_net(txp->dev), skb->skb_iif); 116 if (!skb->dev) { 117 rcu_read_unlock(); > 118 kfree_skb_reason(skb, SKB_DROP_REASON_NO_DEV); 119 txp->dev->stats.tx_dropped++; 120 if (skb_queue_len(&txp->tq) != 0) 121 goto resched; 122 break; 123 } 124 rcu_read_unlock(); 125 skb->skb_iif = txp->dev->ifindex; 126 127 if (!skb->from_ingress) { 128 dev_queue_xmit(skb); 129 } else { 130 skb_pull_rcsum(skb, skb->mac_len); 131 netif_receive_skb(skb); 132 } 133 } 134 135 if (__netif_tx_trylock(txq)) { 136 skb = skb_peek(&txp->rq); 137 if (!skb) { 138 txp->tasklet_pending = 0; 139 if (netif_tx_queue_stopped(txq)) 140 netif_tx_wake_queue(txq); 141 } else { 142 __netif_tx_unlock(txq); 143 goto resched; 144 } 145 __netif_tx_unlock(txq); 146 } else { 147 resched: 148 txp->tasklet_pending = 1; 149 tasklet_schedule(&txp->ifb_tasklet); 150 } 151 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki