[kvalo-ath:pending 52/56] drivers/net/wireless/ath/ath11k/wmi.c:5651 ath11k_wmi_tlv_fw_stats_data_parse() error: uninitialized symbol 'len'.
Dan Carpenter
dan.carpenter at oracle.com
Wed Jan 5 04:21:42 PST 2022
tree: https://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git pending
head: 34cbb4043dca455fca888e1ced323e588912b6a2
commit: bc5c448b70ff141f8a2b5cbbab79fba08d7a1be0 [52/56] ath11k: report rssi of each chain to mac80211 for QCA6390/WCN6855
config: riscv-randconfig-m031-20211210 (https://download.01.org/0day-ci/archive/20211211/202112110427.o6xDAKfE-lkp@intel.com/config)
compiler: riscv64-linux-gcc (GCC) 11.2.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp at intel.com>
Reported-by: Dan Carpenter <dan.carpenter at oracle.com>
New smatch warnings:
drivers/net/wireless/ath/ath11k/wmi.c:5651 ath11k_wmi_tlv_fw_stats_data_parse() error: uninitialized symbol 'len'.
Old smatch warnings:
arch/riscv/include/asm/atomic.h:317 arch_atomic_sub_if_positive() warn: inconsistent indenting
drivers/net/wireless/ath/ath11k/wmi.c:5674 ath11k_wmi_tlv_fw_stats_data_parse() error: uninitialized symbol 'len'.
drivers/net/wireless/ath/ath11k/wmi.c:5695 ath11k_wmi_tlv_fw_stats_data_parse() error: uninitialized symbol 'len'.
vim +/len +5651 drivers/net/wireless/ath/ath11k/wmi.c
bc5c448b70ff14 Wen Gong 2021-12-08 5629 static int ath11k_wmi_tlv_fw_stats_data_parse(struct ath11k_base *ab,
bc5c448b70ff14 Wen Gong 2021-12-08 5630 struct wmi_tlv_fw_stats_parse *parse,
bc5c448b70ff14 Wen Gong 2021-12-08 5631 const void *ptr)
bc5c448b70ff14 Wen Gong 2021-12-08 5632 {
bc5c448b70ff14 Wen Gong 2021-12-08 5633 struct ath11k_fw_stats *stats = parse->stats;
bc5c448b70ff14 Wen Gong 2021-12-08 5634 const struct wmi_stats_event *ev = parse->ev;
bc5c448b70ff14 Wen Gong 2021-12-08 5635 int i;
bc5c448b70ff14 Wen Gong 2021-12-08 5636 const void *data = ptr;
bc5c448b70ff14 Wen Gong 2021-12-08 5637 u32 len;
bc5c448b70ff14 Wen Gong 2021-12-08 5638
bc5c448b70ff14 Wen Gong 2021-12-08 5639 if (!ev) {
bc5c448b70ff14 Wen Gong 2021-12-08 5640 ath11k_warn(ab, "failed to fetch update stats ev");
bc5c448b70ff14 Wen Gong 2021-12-08 5641 return -EPROTO;
bc5c448b70ff14 Wen Gong 2021-12-08 5642 }
d5c65159f28953 Kalle Valo 2019-11-23 5643
d5c65159f28953 Kalle Valo 2019-11-23 5644 stats->stats_id = 0;
d5c65159f28953 Kalle Valo 2019-11-23 5645
d5c65159f28953 Kalle Valo 2019-11-23 5646 for (i = 0; i < ev->num_pdev_stats; i++) {
d5c65159f28953 Kalle Valo 2019-11-23 5647 const struct wmi_pdev_stats *src;
d5c65159f28953 Kalle Valo 2019-11-23 5648 struct ath11k_fw_stats_pdev *dst;
d5c65159f28953 Kalle Valo 2019-11-23 5649
d5c65159f28953 Kalle Valo 2019-11-23 5650 src = data;
bc5c448b70ff14 Wen Gong 2021-12-08 @5651 if (len < sizeof(*src))
"len" is never initialized.
d5c65159f28953 Kalle Valo 2019-11-23 5652 return -EPROTO;
d5c65159f28953 Kalle Valo 2019-11-23 5653
d5c65159f28953 Kalle Valo 2019-11-23 5654 stats->stats_id = WMI_REQUEST_PDEV_STAT;
d5c65159f28953 Kalle Valo 2019-11-23 5655
d5c65159f28953 Kalle Valo 2019-11-23 5656 data += sizeof(*src);
d5c65159f28953 Kalle Valo 2019-11-23 5657 len -= sizeof(*src);
d5c65159f28953 Kalle Valo 2019-11-23 5658
d5c65159f28953 Kalle Valo 2019-11-23 5659 dst = kzalloc(sizeof(*dst), GFP_ATOMIC);
d5c65159f28953 Kalle Valo 2019-11-23 5660 if (!dst)
d5c65159f28953 Kalle Valo 2019-11-23 5661 continue;
d5c65159f28953 Kalle Valo 2019-11-23 5662
d5c65159f28953 Kalle Valo 2019-11-23 5663 ath11k_wmi_pull_pdev_stats_base(&src->base, dst);
d5c65159f28953 Kalle Valo 2019-11-23 5664 ath11k_wmi_pull_pdev_stats_tx(&src->tx, dst);
d5c65159f28953 Kalle Valo 2019-11-23 5665 ath11k_wmi_pull_pdev_stats_rx(&src->rx, dst);
d5c65159f28953 Kalle Valo 2019-11-23 5666 list_add_tail(&dst->list, &stats->pdevs);
d5c65159f28953 Kalle Valo 2019-11-23 5667 }
d5c65159f28953 Kalle Valo 2019-11-23 5668
d5c65159f28953 Kalle Valo 2019-11-23 5669 for (i = 0; i < ev->num_vdev_stats; i++) {
d5c65159f28953 Kalle Valo 2019-11-23 5670 const struct wmi_vdev_stats *src;
d5c65159f28953 Kalle Valo 2019-11-23 5671 struct ath11k_fw_stats_vdev *dst;
d5c65159f28953 Kalle Valo 2019-11-23 5672
d5c65159f28953 Kalle Valo 2019-11-23 5673 src = data;
bc5c448b70ff14 Wen Gong 2021-12-08 5674 if (len < sizeof(*src))
d5c65159f28953 Kalle Valo 2019-11-23 5675 return -EPROTO;
d5c65159f28953 Kalle Valo 2019-11-23 5676
d5c65159f28953 Kalle Valo 2019-11-23 5677 stats->stats_id = WMI_REQUEST_VDEV_STAT;
d5c65159f28953 Kalle Valo 2019-11-23 5678
d5c65159f28953 Kalle Valo 2019-11-23 5679 data += sizeof(*src);
d5c65159f28953 Kalle Valo 2019-11-23 5680 len -= sizeof(*src);
d5c65159f28953 Kalle Valo 2019-11-23 5681
d5c65159f28953 Kalle Valo 2019-11-23 5682 dst = kzalloc(sizeof(*dst), GFP_ATOMIC);
d5c65159f28953 Kalle Valo 2019-11-23 5683 if (!dst)
d5c65159f28953 Kalle Valo 2019-11-23 5684 continue;
d5c65159f28953 Kalle Valo 2019-11-23 5685
d5c65159f28953 Kalle Valo 2019-11-23 5686 ath11k_wmi_pull_vdev_stats(src, dst);
d5c65159f28953 Kalle Valo 2019-11-23 5687 list_add_tail(&dst->list, &stats->vdevs);
d5c65159f28953 Kalle Valo 2019-11-23 5688 }
d5c65159f28953 Kalle Valo 2019-11-23 5689
d5c65159f28953 Kalle Valo 2019-11-23 5690 for (i = 0; i < ev->num_bcn_stats; i++) {
d5c65159f28953 Kalle Valo 2019-11-23 5691 const struct wmi_bcn_stats *src;
d5c65159f28953 Kalle Valo 2019-11-23 5692 struct ath11k_fw_stats_bcn *dst;
d5c65159f28953 Kalle Valo 2019-11-23 5693
d5c65159f28953 Kalle Valo 2019-11-23 5694 src = data;
bc5c448b70ff14 Wen Gong 2021-12-08 5695 if (len < sizeof(*src))
d5c65159f28953 Kalle Valo 2019-11-23 5696 return -EPROTO;
d5c65159f28953 Kalle Valo 2019-11-23 5697
d5c65159f28953 Kalle Valo 2019-11-23 5698 stats->stats_id = WMI_REQUEST_BCN_STAT;
d5c65159f28953 Kalle Valo 2019-11-23 5699
d5c65159f28953 Kalle Valo 2019-11-23 5700 data += sizeof(*src);
d5c65159f28953 Kalle Valo 2019-11-23 5701 len -= sizeof(*src);
d5c65159f28953 Kalle Valo 2019-11-23 5702
d5c65159f28953 Kalle Valo 2019-11-23 5703 dst = kzalloc(sizeof(*dst), GFP_ATOMIC);
d5c65159f28953 Kalle Valo 2019-11-23 5704 if (!dst)
d5c65159f28953 Kalle Valo 2019-11-23 5705 continue;
d5c65159f28953 Kalle Valo 2019-11-23 5706
d5c65159f28953 Kalle Valo 2019-11-23 5707 ath11k_wmi_pull_bcn_stats(src, dst);
d5c65159f28953 Kalle Valo 2019-11-23 5708 list_add_tail(&dst->list, &stats->bcn);
d5c65159f28953 Kalle Valo 2019-11-23 5709 }
d5c65159f28953 Kalle Valo 2019-11-23 5710
d5c65159f28953 Kalle Valo 2019-11-23 5711 return 0;
d5c65159f28953 Kalle Valo 2019-11-23 5712 }
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
More information about the ath10k
mailing list