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Message-ID: <202510201250.Hpsrohca-lkp@intel.com>
Date: Mon, 20 Oct 2025 12:43:43 +0800
From: kernel test robot <lkp@...el.com>
To: Aleksander Jan Bajkowski <olek2@...pl>, nbd@....name,
lorenzo@...nel.org, ryder.lee@...iatek.com,
shayne.chen@...iatek.com, sean.wang@...iatek.com,
matthias.bgg@...il.com, angelogioacchino.delregno@...labora.com,
howard-yh.hsu@...iatek.com, StanleyYP.Wang@...iatek.com,
rosenp@...il.com, luoxueqin@...inos.cn, chad@...roe.io,
linux-wireless@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-mediatek@...ts.infradead.org
Cc: oe-kbuild-all@...ts.linux.dev
Subject: Re: [PATCH] wifi: mt76: add tx checksum offload for mt7915, mt7921,
mt7981 and mt7986
Hi Aleksander,
kernel test robot noticed the following build warnings:
[auto build test WARNING on wireless-next/main]
[also build test WARNING on wireless/main linus/master v6.18-rc2 next-20251017]
[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/Aleksander-Jan-Bajkowski/wifi-mt76-add-tx-checksum-offload-for-mt7915-mt7921-mt7981-and-mt7986/20251019-235515
base: https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next.git main
patch link: https://lore.kernel.org/r/20251019155316.3537185-1-olek2%40wp.pl
patch subject: [PATCH] wifi: mt76: add tx checksum offload for mt7915, mt7921, mt7981 and mt7986
config: loongarch-allyesconfig (https://download.01.org/0day-ci/archive/20251020/202510201250.Hpsrohca-lkp@intel.com/config)
compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 754ebc6ebb9fb9fbee7aef33478c74ea74949853)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251020/202510201250.Hpsrohca-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 <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202510201250.Hpsrohca-lkp@intel.com/
All warnings (new ones prefixed by >>):
>> drivers/net/wireless/mediatek/mt76/mt792x_core.c:636:19: warning: expression result unused [-Wunused-value]
636 | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
| ~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~
1 warning generated.
vim +636 drivers/net/wireless/mediatek/mt76/mt792x_core.c
618
619 int mt792x_init_wiphy(struct ieee80211_hw *hw)
620 {
621 struct mt792x_phy *phy = mt792x_hw_phy(hw);
622 struct mt792x_dev *dev = phy->dev;
623 struct wiphy *wiphy = hw->wiphy;
624
625 hw->queues = 4;
626 if (dev->has_eht) {
627 hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_EHT;
628 hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_EHT;
629 } else {
630 hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HE;
631 hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HE;
632 }
633 hw->netdev_features = NETIF_F_RXCSUM;
634
635 if (is_mt7921(&dev->mt76))
> 636 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
637
638 hw->radiotap_timestamp.units_pos =
639 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US;
640
641 phy->slottime = 9;
642
643 hw->sta_data_size = sizeof(struct mt792x_sta);
644 hw->vif_data_size = sizeof(struct mt792x_vif);
645 hw->chanctx_data_size = sizeof(struct mt792x_chanctx);
646
647 if (dev->fw_features & MT792x_FW_CAP_CNM) {
648 wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
649 wiphy->iface_combinations = if_comb_chanctx;
650 wiphy->n_iface_combinations = ARRAY_SIZE(if_comb_chanctx);
651 } else {
652 wiphy->flags &= ~WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
653 wiphy->iface_combinations = if_comb;
654 wiphy->n_iface_combinations = ARRAY_SIZE(if_comb);
655 }
656 wiphy->flags &= ~(WIPHY_FLAG_IBSS_RSN | WIPHY_FLAG_4ADDR_AP |
657 WIPHY_FLAG_4ADDR_STATION);
658 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
659 BIT(NL80211_IFTYPE_AP) |
660 BIT(NL80211_IFTYPE_P2P_CLIENT) |
661 BIT(NL80211_IFTYPE_P2P_GO) |
662 BIT(NL80211_IFTYPE_P2P_DEVICE);
663 wiphy->max_remain_on_channel_duration = 5000;
664 wiphy->max_scan_ie_len = MT76_CONNAC_SCAN_IE_LEN;
665 wiphy->max_scan_ssids = 4;
666 wiphy->max_sched_scan_plan_interval =
667 MT76_CONNAC_MAX_TIME_SCHED_SCAN_INTERVAL;
668 wiphy->max_sched_scan_ie_len = IEEE80211_MAX_DATA_LEN;
669 wiphy->max_sched_scan_ssids = MT76_CONNAC_MAX_SCHED_SCAN_SSID;
670 wiphy->max_match_sets = MT76_CONNAC_MAX_SCAN_MATCH;
671 wiphy->max_sched_scan_reqs = 1;
672 wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH |
673 WIPHY_FLAG_SPLIT_SCAN_6GHZ;
674
675 wiphy->features |= NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
676 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
677 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_SET_SCAN_DWELL);
678 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_BEACON_RATE_LEGACY);
679 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_BEACON_RATE_HT);
680 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_BEACON_RATE_VHT);
681 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_BEACON_RATE_HE);
682 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_ACK_SIGNAL_SUPPORT);
683 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_CAN_REPLACE_PTK0);
684
685 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS);
686 ieee80211_hw_set(hw, HAS_RATE_CONTROL);
687 ieee80211_hw_set(hw, SUPPORTS_TX_ENCAP_OFFLOAD);
688 ieee80211_hw_set(hw, SUPPORTS_RX_DECAP_OFFLOAD);
689 ieee80211_hw_set(hw, WANT_MONITOR_VIF);
690 ieee80211_hw_set(hw, SUPPORTS_PS);
691 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
692 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW);
693 ieee80211_hw_set(hw, CONNECTION_MONITOR);
694 ieee80211_hw_set(hw, NO_VIRTUAL_MONITOR);
695 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID);
696 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID);
697
698 if (is_mt7921(&dev->mt76)) {
699 ieee80211_hw_set(hw, CHANCTX_STA_CSA);
700 }
701
702 if (dev->pm.enable)
703 ieee80211_hw_set(hw, CONNECTION_MONITOR);
704
705 hw->max_tx_fragments = 4;
706
707 return 0;
708 }
709 EXPORT_SYMBOL_GPL(mt792x_init_wiphy);
710
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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