linux-kernel - [toke:xdp-queueing-06 11/17] net/core/dev.c:5038: undefined reference to `dev_run_xdp

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Message-ID: <202207140528.8qEWv6Hl-lkp@intel.com>
Date:   Thu, 14 Jul 2022 05:23:19 +0800
From:   kernel test robot <lkp@...el.com>
To:     Toke Høiland-Jørgensen <toke@...hat.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [toke:xdp-queueing-06 11/17] net/core/dev.c:5038: undefined
 reference to `dev_run_xdp_dequeue'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/toke/linux.git xdp-queueing-06
head:   eb15b48f1b85d5986f1c2dbaf68c3c27e93f0c0c
commit: 0fb9291256bd9a2e0b9a58ce6755891bcdf21938 [11/17] dev: Add XDP dequeue hook
config: x86_64-randconfig-m001 (https://download.01.org/0day-ci/archive/20220714/202207140528.8qEWv6Hl-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-3) 11.3.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/toke/linux.git/commit/?id=0fb9291256bd9a2e0b9a58ce6755891bcdf21938
        git remote add toke https://git.kernel.org/pub/scm/linux/kernel/git/toke/linux.git
        git fetch --no-tags toke xdp-queueing-06
        git checkout 0fb9291256bd9a2e0b9a58ce6755891bcdf21938
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   ld: net/core/dev.o: in function `net_tx_action':
>> net/core/dev.c:5038: undefined reference to `dev_run_xdp_dequeue'


vim +5038 net/core/dev.c

  5025	
  5026	static __latent_entropy void net_tx_action(struct softirq_action *h)
  5027	{
  5028		struct softnet_data *sd = this_cpu_ptr(&softnet_data);
  5029	
  5030		if (sd->xdp_dequeue) {
  5031			struct xdp_dequeue *deq;
  5032	
  5033			local_irq_disable();
  5034			deq = sd->xdp_dequeue;
  5035			sd->xdp_dequeue = NULL;
  5036			local_irq_enable();
  5037	
> 5038			dev_run_xdp_dequeue(deq);
  5039		}
  5040	
  5041		if (sd->completion_queue) {
  5042			struct sk_buff *clist;
  5043	
  5044			local_irq_disable();
  5045			clist = sd->completion_queue;
  5046			sd->completion_queue = NULL;
  5047			local_irq_enable();
  5048	
  5049			while (clist) {
  5050				struct sk_buff *skb = clist;
  5051	
  5052				clist = clist->next;
  5053	
  5054				WARN_ON(refcount_read(&skb->users));
  5055				if (likely(get_kfree_skb_cb(skb)->reason == SKB_REASON_CONSUMED))
  5056					trace_consume_skb(skb);
  5057				else
  5058					trace_kfree_skb(skb, net_tx_action,
  5059							SKB_DROP_REASON_NOT_SPECIFIED);
  5060	
  5061				if (skb->fclone != SKB_FCLONE_UNAVAILABLE)
  5062					__kfree_skb(skb);
  5063				else
  5064					__kfree_skb_defer(skb);
  5065			}
  5066		}
  5067	
  5068		if (sd->output_queue) {
  5069			struct Qdisc *head;
  5070	
  5071			local_irq_disable();
  5072			head = sd->output_queue;
  5073			sd->output_queue = NULL;
  5074			sd->output_queue_tailp = &sd->output_queue;
  5075			local_irq_enable();
  5076	
  5077			rcu_read_lock();
  5078	
  5079			while (head) {
  5080				struct Qdisc *q = head;
  5081				spinlock_t *root_lock = NULL;
  5082	
  5083				head = head->next_sched;
  5084	
  5085				/* We need to make sure head->next_sched is read
  5086				 * before clearing __QDISC_STATE_SCHED
  5087				 */
  5088				smp_mb__before_atomic();
  5089	
  5090				if (!(q->flags & TCQ_F_NOLOCK)) {
  5091					root_lock = qdisc_lock(q);
  5092					spin_lock(root_lock);
  5093				} else if (unlikely(test_bit(__QDISC_STATE_DEACTIVATED,
  5094							     &q->state))) {
  5095					/* There is a synchronize_net() between
  5096					 * STATE_DEACTIVATED flag being set and
  5097					 * qdisc_reset()/some_qdisc_is_busy() in
  5098					 * dev_deactivate(), so we can safely bail out
  5099					 * early here to avoid data race between
  5100					 * qdisc_deactivate() and some_qdisc_is_busy()
  5101					 * for lockless qdisc.
  5102					 */
  5103					clear_bit(__QDISC_STATE_SCHED, &q->state);
  5104					continue;
  5105				}
  5106	
  5107				clear_bit(__QDISC_STATE_SCHED, &q->state);
  5108				qdisc_run(q);
  5109				if (root_lock)
  5110					spin_unlock(root_lock);
  5111			}
  5112	
  5113			rcu_read_unlock();
  5114		}
  5115	
  5116		xfrm_dev_backlog(sd);
  5117	}
  5118	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp