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charset=us-ascii Content-Disposition: inline tree: https://android.googlesource.com/kernel/common android14-6.1-2024-12 head: d7e681d5f2760062573dbd9f6fb00a2cac081eed commit: ec6f22171dc266f410335068291f2149b64e8363 [1/1] net: wwan: t7xx: do not compile with -Werror config: arm64-randconfig-002-20250628 (https://download.01.org/0day-ci/archive/20250628/202506281243.nawJOxIL-lkp@intel.com/config) compiler: clang version 21.0.0git (https://github.com/llvm/llvm-project e04c938cc08a90ae60440ce22d072ebc69d67ee8) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250628/202506281243.nawJOxIL-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/202506281243.nawJOxIL-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/net/wwan/t7xx/t7xx_hif_dpmaif_rx.c:780:38: warning: default initialization of an object of type 'typeof (timeout)' (aka 'const unsigned long') leaves the object uninitialized [-Wdefault-const-init-var-unsafe] 780 | if (!skb_info->msg_pit_received && time_after_eq(jiffies, timeout)) | ^ include/linux/jiffies.h:112:3: note: expanded from macro 'time_after_eq' 112 | typecheck(unsigned long, b) && \ | ^ include/linux/typecheck.h:11:12: note: expanded from macro 'typecheck' 11 | typeof(x) __dummy2; \ | ^ 1 warning generated. vim +780 drivers/net/wwan/t7xx/t7xx_hif_dpmaif_rx.c d642b012df70a76 Haijun Liu 2022-05-06 763 d642b012df70a76 Haijun Liu 2022-05-06 764 static int t7xx_dpmaif_rx_start(struct dpmaif_rx_queue *rxq, const unsigned int pit_cnt, d642b012df70a76 Haijun Liu 2022-05-06 765 const unsigned long timeout) d642b012df70a76 Haijun Liu 2022-05-06 766 { d642b012df70a76 Haijun Liu 2022-05-06 767 unsigned int cur_pit, pit_len, rx_cnt, recv_skb_cnt = 0; d642b012df70a76 Haijun Liu 2022-05-06 768 struct device *dev = rxq->dpmaif_ctrl->dev; d642b012df70a76 Haijun Liu 2022-05-06 769 struct dpmaif_cur_rx_skb_info *skb_info; d642b012df70a76 Haijun Liu 2022-05-06 770 int ret = 0; d642b012df70a76 Haijun Liu 2022-05-06 771 d642b012df70a76 Haijun Liu 2022-05-06 772 pit_len = rxq->pit_size_cnt; d642b012df70a76 Haijun Liu 2022-05-06 773 skb_info = &rxq->rx_data_info; d642b012df70a76 Haijun Liu 2022-05-06 774 cur_pit = rxq->pit_rd_idx; d642b012df70a76 Haijun Liu 2022-05-06 775 d642b012df70a76 Haijun Liu 2022-05-06 776 for (rx_cnt = 0; rx_cnt < pit_cnt; rx_cnt++) { d642b012df70a76 Haijun Liu 2022-05-06 777 struct dpmaif_pit *pkt_info; d642b012df70a76 Haijun Liu 2022-05-06 778 u32 val; d642b012df70a76 Haijun Liu 2022-05-06 779 d642b012df70a76 Haijun Liu 2022-05-06 @780 if (!skb_info->msg_pit_received && time_after_eq(jiffies, timeout)) d642b012df70a76 Haijun Liu 2022-05-06 781 break; d642b012df70a76 Haijun Liu 2022-05-06 782 d642b012df70a76 Haijun Liu 2022-05-06 783 pkt_info = (struct dpmaif_pit *)rxq->pit_base + cur_pit; d642b012df70a76 Haijun Liu 2022-05-06 784 if (t7xx_dpmaif_check_pit_seq(rxq, pkt_info)) { d642b012df70a76 Haijun Liu 2022-05-06 785 dev_err_ratelimited(dev, "RXQ%u checks PIT SEQ fail\n", rxq->index); d642b012df70a76 Haijun Liu 2022-05-06 786 return -EAGAIN; d642b012df70a76 Haijun Liu 2022-05-06 787 } d642b012df70a76 Haijun Liu 2022-05-06 788 d642b012df70a76 Haijun Liu 2022-05-06 789 val = FIELD_GET(PD_PIT_PACKET_TYPE, le32_to_cpu(pkt_info->header)); d642b012df70a76 Haijun Liu 2022-05-06 790 if (val == DES_PT_MSG) { d642b012df70a76 Haijun Liu 2022-05-06 791 if (skb_info->msg_pit_received) d642b012df70a76 Haijun Liu 2022-05-06 792 dev_err(dev, "RXQ%u received repeated PIT\n", rxq->index); d642b012df70a76 Haijun Liu 2022-05-06 793 d642b012df70a76 Haijun Liu 2022-05-06 794 skb_info->msg_pit_received = true; d642b012df70a76 Haijun Liu 2022-05-06 795 t7xx_dpmaif_parse_msg_pit(rxq, pkt_info, skb_info); d642b012df70a76 Haijun Liu 2022-05-06 796 } else { /* DES_PT_PD */ d642b012df70a76 Haijun Liu 2022-05-06 797 val = FIELD_GET(PD_PIT_BUFFER_TYPE, le32_to_cpu(pkt_info->header)); d642b012df70a76 Haijun Liu 2022-05-06 798 if (val != PKT_BUF_FRAG) d642b012df70a76 Haijun Liu 2022-05-06 799 ret = t7xx_dpmaif_get_rx_pkt(rxq, pkt_info, skb_info); d642b012df70a76 Haijun Liu 2022-05-06 800 else if (!skb_info->cur_skb) d642b012df70a76 Haijun Liu 2022-05-06 801 ret = -EINVAL; d642b012df70a76 Haijun Liu 2022-05-06 802 else d642b012df70a76 Haijun Liu 2022-05-06 803 ret = t7xx_dpmaif_get_frag(rxq, pkt_info, skb_info); d642b012df70a76 Haijun Liu 2022-05-06 804 d642b012df70a76 Haijun Liu 2022-05-06 805 if (ret < 0) { d642b012df70a76 Haijun Liu 2022-05-06 806 skb_info->err_payload = 1; d642b012df70a76 Haijun Liu 2022-05-06 807 dev_err_ratelimited(dev, "RXQ%u error payload\n", rxq->index); d642b012df70a76 Haijun Liu 2022-05-06 808 } d642b012df70a76 Haijun Liu 2022-05-06 809 d642b012df70a76 Haijun Liu 2022-05-06 810 val = FIELD_GET(PD_PIT_CONT, le32_to_cpu(pkt_info->header)); d642b012df70a76 Haijun Liu 2022-05-06 811 if (!val) { d642b012df70a76 Haijun Liu 2022-05-06 812 if (!skb_info->err_payload) { d642b012df70a76 Haijun Liu 2022-05-06 813 t7xx_dpmaif_rx_skb(rxq, skb_info); d642b012df70a76 Haijun Liu 2022-05-06 814 } else if (skb_info->cur_skb) { d642b012df70a76 Haijun Liu 2022-05-06 815 dev_kfree_skb_any(skb_info->cur_skb); d642b012df70a76 Haijun Liu 2022-05-06 816 skb_info->cur_skb = NULL; d642b012df70a76 Haijun Liu 2022-05-06 817 } d642b012df70a76 Haijun Liu 2022-05-06 818 d642b012df70a76 Haijun Liu 2022-05-06 819 memset(skb_info, 0, sizeof(*skb_info)); d642b012df70a76 Haijun Liu 2022-05-06 820 d642b012df70a76 Haijun Liu 2022-05-06 821 recv_skb_cnt++; d642b012df70a76 Haijun Liu 2022-05-06 822 if (!(recv_skb_cnt & DPMAIF_RX_PUSH_THRESHOLD_MASK)) { d642b012df70a76 Haijun Liu 2022-05-06 823 wake_up_all(&rxq->rx_wq); d642b012df70a76 Haijun Liu 2022-05-06 824 recv_skb_cnt = 0; d642b012df70a76 Haijun Liu 2022-05-06 825 } d642b012df70a76 Haijun Liu 2022-05-06 826 } d642b012df70a76 Haijun Liu 2022-05-06 827 } d642b012df70a76 Haijun Liu 2022-05-06 828 d642b012df70a76 Haijun Liu 2022-05-06 829 cur_pit = t7xx_ring_buf_get_next_wr_idx(pit_len, cur_pit); d642b012df70a76 Haijun Liu 2022-05-06 830 rxq->pit_rd_idx = cur_pit; d642b012df70a76 Haijun Liu 2022-05-06 831 rxq->pit_remain_release_cnt++; d642b012df70a76 Haijun Liu 2022-05-06 832 d642b012df70a76 Haijun Liu 2022-05-06 833 if (rx_cnt > 0 && !(rx_cnt % DPMAIF_NOTIFY_RELEASE_COUNT)) { d642b012df70a76 Haijun Liu 2022-05-06 834 ret = t7xx_dpmaifq_rx_notify_hw(rxq); d642b012df70a76 Haijun Liu 2022-05-06 835 if (ret < 0) d642b012df70a76 Haijun Liu 2022-05-06 836 break; d642b012df70a76 Haijun Liu 2022-05-06 837 } d642b012df70a76 Haijun Liu 2022-05-06 838 } d642b012df70a76 Haijun Liu 2022-05-06 839 d642b012df70a76 Haijun Liu 2022-05-06 840 if (recv_skb_cnt) d642b012df70a76 Haijun Liu 2022-05-06 841 wake_up_all(&rxq->rx_wq); d642b012df70a76 Haijun Liu 2022-05-06 842 d642b012df70a76 Haijun Liu 2022-05-06 843 if (!ret) d642b012df70a76 Haijun Liu 2022-05-06 844 ret = t7xx_dpmaifq_rx_notify_hw(rxq); d642b012df70a76 Haijun Liu 2022-05-06 845 d642b012df70a76 Haijun Liu 2022-05-06 846 if (ret) d642b012df70a76 Haijun Liu 2022-05-06 847 return ret; d642b012df70a76 Haijun Liu 2022-05-06 848 d642b012df70a76 Haijun Liu 2022-05-06 849 return rx_cnt; d642b012df70a76 Haijun Liu 2022-05-06 850 } d642b012df70a76 Haijun Liu 2022-05-06 851 :::::: The code at line 780 was first introduced by commit :::::: d642b012df70a76dd5723f2d426b40bffe83ac49 net: wwan: t7xx: Add data path interface :::::: TO: Haijun Liu :::::: CC: David S. Miller -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki