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charset=us-ascii Content-Disposition: inline Hi Breno, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 850925a8133c73c4a2453c360b2c3beb3bab67c9 commit: 782fe08e9861d00ce8aca370453dd9ceb9a23d50 soc: fsl: qbman: FSL_DPAA depends on COMPILE_TEST date: 3 months ago config: arm-randconfig-r123-20241027 (https://download.01.org/0day-ci/archive/20241027/202410271721.jiVrriXD-lkp@intel.com/config) compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 5886454669c3c9026f7f27eab13509dd0241f2d6) reproduce: (https://download.01.org/0day-ci/archive/20241027/202410271721.jiVrriXD-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/202410271721.jiVrriXD-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> drivers/net/ethernet/freescale/dpaa/dpaa_eth.c:2745:24: sparse: sparse: cast to restricted __be32 drivers/net/ethernet/freescale/dpaa/dpaa_eth.c: note: in included file (through include/linux/module.h): include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true drivers/net/ethernet/freescale/dpaa/dpaa_eth.c: note: in included file: >> include/soc/fsl/qman.h:245:16: sparse: sparse: cast to restricted __be32 >> include/soc/fsl/qman.h:245:16: sparse: sparse: cast from restricted __be16 vim +2745 drivers/net/ethernet/freescale/dpaa/dpaa_eth.c 86c0c196cbe48f8 Camelia Groza 2020-11-25 2650 9ad1a37493338ca Madalin Bucur 2016-11-15 2651 static enum qman_cb_dqrr_result rx_default_dqrr(struct qman_portal *portal, 9ad1a37493338ca Madalin Bucur 2016-11-15 2652 struct qman_fq *fq, f84754dbc55e3ab Sebastian Andrzej Siewior 2020-11-02 2653 const struct qm_dqrr_entry *dq, f84754dbc55e3ab Sebastian Andrzej Siewior 2020-11-02 2654 bool sched_napi) 9ad1a37493338ca Madalin Bucur 2016-11-15 2655 { 86c0c196cbe48f8 Camelia Groza 2020-11-25 2656 bool ts_valid = false, hash_valid = false; 4664856e9ca2e50 Yangbo Lu 2018-06-25 2657 struct skb_shared_hwtstamps *shhwtstamps; 86c0c196cbe48f8 Camelia Groza 2020-11-25 2658 unsigned int skb_len, xdp_meta_len = 0; 9ad1a37493338ca Madalin Bucur 2016-11-15 2659 struct rtnl_link_stats64 *percpu_stats; 9ad1a37493338ca Madalin Bucur 2016-11-15 2660 struct dpaa_percpu_priv *percpu_priv; 9ad1a37493338ca Madalin Bucur 2016-11-15 2661 const struct qm_fd *fd = &dq->fd; 9ad1a37493338ca Madalin Bucur 2016-11-15 2662 dma_addr_t addr = qm_fd_addr(fd); a1e031ffb422bb8 Camelia Groza 2020-11-25 2663 struct dpaa_napi_portal *np; 9ad1a37493338ca Madalin Bucur 2016-11-15 2664 enum qm_fd_format fd_format; 9ad1a37493338ca Madalin Bucur 2016-11-15 2665 struct net_device *net_dev; 056057e288e7075 Madalin Bucur 2017-08-27 2666 u32 fd_status, hash_offset; 86c0c196cbe48f8 Camelia Groza 2020-11-25 2667 struct qm_sg_entry *sgt; 9ad1a37493338ca Madalin Bucur 2016-11-15 2668 struct dpaa_bp *dpaa_bp; d57e57d0cd04be5 Camelia Groza 2020-11-25 2669 struct dpaa_fq *dpaa_fq; 9ad1a37493338ca Madalin Bucur 2016-11-15 2670 struct dpaa_priv *priv; 9ad1a37493338ca Madalin Bucur 2016-11-15 2671 struct sk_buff *skb; 9ad1a37493338ca Madalin Bucur 2016-11-15 2672 int *count_ptr; 86c0c196cbe48f8 Camelia Groza 2020-11-25 2673 u32 xdp_act; 056057e288e7075 Madalin Bucur 2017-08-27 2674 void *vaddr; 86c0c196cbe48f8 Camelia Groza 2020-11-25 2675 u32 hash; 4664856e9ca2e50 Yangbo Lu 2018-06-25 2676 u64 ns; 9ad1a37493338ca Madalin Bucur 2016-11-15 2677 d57e57d0cd04be5 Camelia Groza 2020-11-25 2678 dpaa_fq = container_of(fq, struct dpaa_fq, fq_base); 7d6f8dc0b2180ed Claudiu Manoil 2016-12-15 2679 fd_status = be32_to_cpu(fd->status); 7d6f8dc0b2180ed Claudiu Manoil 2016-12-15 2680 fd_format = qm_fd_get_format(fd); d57e57d0cd04be5 Camelia Groza 2020-11-25 2681 net_dev = dpaa_fq->net_dev; 9ad1a37493338ca Madalin Bucur 2016-11-15 2682 priv = netdev_priv(net_dev); 9ad1a37493338ca Madalin Bucur 2016-11-15 2683 dpaa_bp = dpaa_bpid2pool(dq->fd.bpid); 9ad1a37493338ca Madalin Bucur 2016-11-15 2684 if (!dpaa_bp) 9ad1a37493338ca Madalin Bucur 2016-11-15 2685 return qman_cb_dqrr_consume; 9ad1a37493338ca Madalin Bucur 2016-11-15 2686 eb11ddf36eb87f3 Madalin Bucur 2016-11-15 2687 /* Trace the Rx fd */ eb11ddf36eb87f3 Madalin Bucur 2016-11-15 2688 trace_dpaa_rx_fd(net_dev, fq, &dq->fd); eb11ddf36eb87f3 Madalin Bucur 2016-11-15 2689 9ad1a37493338ca Madalin Bucur 2016-11-15 2690 percpu_priv = this_cpu_ptr(priv->percpu_priv); 9ad1a37493338ca Madalin Bucur 2016-11-15 2691 percpu_stats = &percpu_priv->stats; 433dfc99aa3e0ac Camelia Groza 2021-02-18 2692 np = &percpu_priv->np; 9ad1a37493338ca Madalin Bucur 2016-11-15 2693 abba4b16fddda9a Sebastian Andrzej Siewior 2020-11-02 2694 if (unlikely(dpaa_eth_napi_schedule(percpu_priv, portal, sched_napi))) 9ad1a37493338ca Madalin Bucur 2016-11-15 2695 return qman_cb_dqrr_stop; 9ad1a37493338ca Madalin Bucur 2016-11-15 2696 9ad1a37493338ca Madalin Bucur 2016-11-15 2697 /* Make sure we didn't run out of buffers */ 9ad1a37493338ca Madalin Bucur 2016-11-15 2698 if (unlikely(dpaa_eth_refill_bpools(priv))) { 9ad1a37493338ca Madalin Bucur 2016-11-15 2699 /* Unable to refill the buffer pool due to insufficient 9ad1a37493338ca Madalin Bucur 2016-11-15 2700 * system memory. Just release the frame back into the pool, 9ad1a37493338ca Madalin Bucur 2016-11-15 2701 * otherwise we'll soon end up with an empty buffer pool. 9ad1a37493338ca Madalin Bucur 2016-11-15 2702 */ 9ad1a37493338ca Madalin Bucur 2016-11-15 2703 dpaa_fd_release(net_dev, &dq->fd); 9ad1a37493338ca Madalin Bucur 2016-11-15 2704 return qman_cb_dqrr_consume; 9ad1a37493338ca Madalin Bucur 2016-11-15 2705 } 9ad1a37493338ca Madalin Bucur 2016-11-15 2706 9ad1a37493338ca Madalin Bucur 2016-11-15 2707 if (unlikely(fd_status & FM_FD_STAT_RX_ERRORS) != 0) { 9ad1a37493338ca Madalin Bucur 2016-11-15 2708 if (net_ratelimit()) 9ad1a37493338ca Madalin Bucur 2016-11-15 2709 netif_warn(priv, hw, net_dev, "FD status = 0x%08x\n", 9ad1a37493338ca Madalin Bucur 2016-11-15 2710 fd_status & FM_FD_STAT_RX_ERRORS); 9ad1a37493338ca Madalin Bucur 2016-11-15 2711 9ad1a37493338ca Madalin Bucur 2016-11-15 2712 percpu_stats->rx_errors++; 9ad1a37493338ca Madalin Bucur 2016-11-15 2713 dpaa_fd_release(net_dev, fd); 9ad1a37493338ca Madalin Bucur 2016-11-15 2714 return qman_cb_dqrr_consume; 9ad1a37493338ca Madalin Bucur 2016-11-15 2715 } 9ad1a37493338ca Madalin Bucur 2016-11-15 2716 8151ee88bad568f Madalin Bucur 2019-10-31 2717 dma_unmap_page(dpaa_bp->priv->rx_dma_dev, addr, DPAA_BP_RAW_SIZE, 060ad66f97954fa Madalin Bucur 2019-10-23 2718 DMA_FROM_DEVICE); 9ad1a37493338ca Madalin Bucur 2016-11-15 2719 9ad1a37493338ca Madalin Bucur 2016-11-15 2720 /* prefetch the first 64 bytes of the frame or the SGT start */ 056057e288e7075 Madalin Bucur 2017-08-27 2721 vaddr = phys_to_virt(addr); 056057e288e7075 Madalin Bucur 2017-08-27 2722 prefetch(vaddr + qm_fd_get_offset(fd)); 9ad1a37493338ca Madalin Bucur 2016-11-15 2723 9ad1a37493338ca Madalin Bucur 2016-11-15 2724 /* The only FD types that we may receive are contig and S/G */ 9ad1a37493338ca Madalin Bucur 2016-11-15 2725 WARN_ON((fd_format != qm_fd_contig) && (fd_format != qm_fd_sg)); 9ad1a37493338ca Madalin Bucur 2016-11-15 2726 9ad1a37493338ca Madalin Bucur 2016-11-15 2727 /* Account for either the contig buffer or the SGT buffer (depending on 9ad1a37493338ca Madalin Bucur 2016-11-15 2728 * which case we were in) having been removed from the pool. 9ad1a37493338ca Madalin Bucur 2016-11-15 2729 */ 9ad1a37493338ca Madalin Bucur 2016-11-15 2730 count_ptr = this_cpu_ptr(dpaa_bp->percpu_count); 9ad1a37493338ca Madalin Bucur 2016-11-15 2731 (*count_ptr)--; 9ad1a37493338ca Madalin Bucur 2016-11-15 2732 86c0c196cbe48f8 Camelia Groza 2020-11-25 2733 /* Extract the timestamp stored in the headroom before running XDP */ 86c0c196cbe48f8 Camelia Groza 2020-11-25 2734 if (priv->rx_tstamp) { 86c0c196cbe48f8 Camelia Groza 2020-11-25 2735 if (!fman_port_get_tstamp(priv->mac_dev->port[RX], vaddr, &ns)) 86c0c196cbe48f8 Camelia Groza 2020-11-25 2736 ts_valid = true; 9ad1a37493338ca Madalin Bucur 2016-11-15 2737 else 86c0c196cbe48f8 Camelia Groza 2020-11-25 2738 WARN_ONCE(1, "fman_port_get_tstamp failed!\n"); 86c0c196cbe48f8 Camelia Groza 2020-11-25 2739 } 86c0c196cbe48f8 Camelia Groza 2020-11-25 2740 86c0c196cbe48f8 Camelia Groza 2020-11-25 2741 /* Extract the hash stored in the headroom before running XDP */ 86c0c196cbe48f8 Camelia Groza 2020-11-25 2742 if (net_dev->features & NETIF_F_RXHASH && priv->keygen_in_use && 86c0c196cbe48f8 Camelia Groza 2020-11-25 2743 !fman_port_get_hash_result_offset(priv->mac_dev->port[RX], 86c0c196cbe48f8 Camelia Groza 2020-11-25 2744 &hash_offset)) { 86c0c196cbe48f8 Camelia Groza 2020-11-25 @2745 hash = be32_to_cpu(*(u32 *)(vaddr + hash_offset)); 86c0c196cbe48f8 Camelia Groza 2020-11-25 2746 hash_valid = true; 86c0c196cbe48f8 Camelia Groza 2020-11-25 2747 } 86c0c196cbe48f8 Camelia Groza 2020-11-25 2748 86c0c196cbe48f8 Camelia Groza 2020-11-25 2749 if (likely(fd_format == qm_fd_contig)) { 86c0c196cbe48f8 Camelia Groza 2020-11-25 2750 xdp_act = dpaa_run_xdp(priv, (struct qm_fd *)fd, vaddr, d57e57d0cd04be5 Camelia Groza 2020-11-25 2751 dpaa_fq, &xdp_meta_len); a1e031ffb422bb8 Camelia Groza 2020-11-25 2752 np->xdp_act |= xdp_act; 86c0c196cbe48f8 Camelia Groza 2020-11-25 2753 if (xdp_act != XDP_PASS) { 86c0c196cbe48f8 Camelia Groza 2020-11-25 2754 percpu_stats->rx_packets++; 86c0c196cbe48f8 Camelia Groza 2020-11-25 2755 percpu_stats->rx_bytes += qm_fd_get_length(fd); 86c0c196cbe48f8 Camelia Groza 2020-11-25 2756 return qman_cb_dqrr_consume; 86c0c196cbe48f8 Camelia Groza 2020-11-25 2757 } 86c0c196cbe48f8 Camelia Groza 2020-11-25 2758 skb = contig_fd_to_skb(priv, fd); 86c0c196cbe48f8 Camelia Groza 2020-11-25 2759 } else { 86c0c196cbe48f8 Camelia Groza 2020-11-25 2760 /* XDP doesn't support S/G frames. Return the fragments to the 86c0c196cbe48f8 Camelia Groza 2020-11-25 2761 * buffer pool and release the SGT. 86c0c196cbe48f8 Camelia Groza 2020-11-25 2762 */ 86c0c196cbe48f8 Camelia Groza 2020-11-25 2763 if (READ_ONCE(priv->xdp_prog)) { 86c0c196cbe48f8 Camelia Groza 2020-11-25 2764 WARN_ONCE(1, "S/G frames not supported under XDP\n"); 86c0c196cbe48f8 Camelia Groza 2020-11-25 2765 sgt = vaddr + qm_fd_get_offset(fd); 86c0c196cbe48f8 Camelia Groza 2020-11-25 2766 dpaa_release_sgt_members(sgt); 86c0c196cbe48f8 Camelia Groza 2020-11-25 2767 free_pages((unsigned long)vaddr, 0); 86c0c196cbe48f8 Camelia Groza 2020-11-25 2768 return qman_cb_dqrr_consume; 86c0c196cbe48f8 Camelia Groza 2020-11-25 2769 } 9ad1a37493338ca Madalin Bucur 2016-11-15 2770 skb = sg_fd_to_skb(priv, fd); 86c0c196cbe48f8 Camelia Groza 2020-11-25 2771 } 9ad1a37493338ca Madalin Bucur 2016-11-15 2772 if (!skb) 9ad1a37493338ca Madalin Bucur 2016-11-15 2773 return qman_cb_dqrr_consume; 9ad1a37493338ca Madalin Bucur 2016-11-15 2774 86c0c196cbe48f8 Camelia Groza 2020-11-25 2775 if (xdp_meta_len) 86c0c196cbe48f8 Camelia Groza 2020-11-25 2776 skb_metadata_set(skb, xdp_meta_len); 86c0c196cbe48f8 Camelia Groza 2020-11-25 2777 86c0c196cbe48f8 Camelia Groza 2020-11-25 2778 /* Set the previously extracted timestamp */ 86c0c196cbe48f8 Camelia Groza 2020-11-25 2779 if (ts_valid) { 4664856e9ca2e50 Yangbo Lu 2018-06-25 2780 shhwtstamps = skb_hwtstamps(skb); 4664856e9ca2e50 Yangbo Lu 2018-06-25 2781 memset(shhwtstamps, 0, sizeof(*shhwtstamps)); 4664856e9ca2e50 Yangbo Lu 2018-06-25 2782 shhwtstamps->hwtstamp = ns_to_ktime(ns); 4664856e9ca2e50 Yangbo Lu 2018-06-25 2783 } 4664856e9ca2e50 Yangbo Lu 2018-06-25 2784 9ad1a37493338ca Madalin Bucur 2016-11-15 2785 skb->protocol = eth_type_trans(skb, net_dev); 9ad1a37493338ca Madalin Bucur 2016-11-15 2786 86c0c196cbe48f8 Camelia Groza 2020-11-25 2787 /* Set the previously extracted hash */ 86c0c196cbe48f8 Camelia Groza 2020-11-25 2788 if (hash_valid) { 056057e288e7075 Madalin Bucur 2017-08-27 2789 enum pkt_hash_types type; 056057e288e7075 Madalin Bucur 2017-08-27 2790 056057e288e7075 Madalin Bucur 2017-08-27 2791 /* if L4 exists, it was used in the hash generation */ 056057e288e7075 Madalin Bucur 2017-08-27 2792 type = be32_to_cpu(fd->status) & FM_FD_STAT_L4CV ? 056057e288e7075 Madalin Bucur 2017-08-27 2793 PKT_HASH_TYPE_L4 : PKT_HASH_TYPE_L3; 86c0c196cbe48f8 Camelia Groza 2020-11-25 2794 skb_set_hash(skb, hash, type); 056057e288e7075 Madalin Bucur 2017-08-27 2795 } 056057e288e7075 Madalin Bucur 2017-08-27 2796 9ad1a37493338ca Madalin Bucur 2016-11-15 2797 skb_len = skb->len; 9ad1a37493338ca Madalin Bucur 2016-11-15 2798 e4d1b37c17d000a Camelia Groza 2018-03-14 2799 if (unlikely(netif_receive_skb(skb) == NET_RX_DROP)) { e4d1b37c17d000a Camelia Groza 2018-03-14 2800 percpu_stats->rx_dropped++; 9ad1a37493338ca Madalin Bucur 2016-11-15 2801 return qman_cb_dqrr_consume; e4d1b37c17d000a Camelia Groza 2018-03-14 2802 } 9ad1a37493338ca Madalin Bucur 2016-11-15 2803 9ad1a37493338ca Madalin Bucur 2016-11-15 2804 percpu_stats->rx_packets++; 9ad1a37493338ca Madalin Bucur 2016-11-15 2805 percpu_stats->rx_bytes += skb_len; 9ad1a37493338ca Madalin Bucur 2016-11-15 2806 9ad1a37493338ca Madalin Bucur 2016-11-15 2807 return qman_cb_dqrr_consume; 9ad1a37493338ca Madalin Bucur 2016-11-15 2808 } 9ad1a37493338ca Madalin Bucur 2016-11-15 2809 :::::: The code at line 2745 was first introduced by commit :::::: 86c0c196cbe48f844721783d9162e46bc35c0c5a dpaa_eth: add basic XDP support :::::: TO: Camelia Groza :::::: CC: Jakub Kicinski -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki