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X-CSE-ConnectionGUID: CQ40SAH2SVCmIE1W6xNyVg== X-CSE-MsgGUID: HdILhy5URTSgkNn86Zf7YA== X-IronPort-AV: E=McAfee;i="6800,10657,11870"; a="86874369" X-IronPort-AV: E=Sophos;i="6.25,215,1779174000"; d="scan'208";a="86874369" Received: from fmviesa005.fm.intel.com ([10.60.135.145]) by orvoesa109.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Aug 2026 02:51:59 -0700 X-CSE-ConnectionGUID: b01Lh2HLS9aCQrGA9BjoUg== X-CSE-MsgGUID: +08URmnZQyy5RU5ZQvrl5g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,215,1779174000"; d="scan'208";a="268154114" Received: from lkp-server01.sh.intel.com (HELO 6eda058d650d) ([10.239.97.150]) by fmviesa005.fm.intel.com with ESMTP; 10 Aug 2026 02:51:57 -0700 Received: from kbuild by 6eda058d650d with local (Exim 4.98.2) (envelope-from ) id 1wtMfj-00000000N6g-0TBH; Mon, 10 Aug 2026 09:51:55 +0000 Date: Mon, 10 Aug 2026 17:51:02 +0800 From: kernel test robot To: oe-kbuild@lists.linux.dev Cc: lkp@intel.com, Dan Carpenter Subject: [linux-next:master 10145/13846] drivers/net/wireless/mediatek/mt76/mt7925/nan.c:210 mt7925_nan_mp_tlv() warn: impossible condition '(master_pref > 255) => (0-255 > 255)' Message-ID: <202608101725.AtQNuubl-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: oe-kbuild@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: BCC: lkp@intel.com CC: oe-kbuild-all@lists.linux.dev TO: Sean Wang CC: Felix Fietkau CC: Stella Liu CC: Jeremy Yu tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 6b8c8af514d739d0335f5579b585e02babe8a727 commit: a5487a6824068cba6fab02f3e5186940a59275ed [10145/13846] wifi: mt76: mt7925: add NAN MCU helpers :::::: branch date: 3 days ago :::::: commit date: 10 days ago config: x86_64-randconfig-161-20260810 (https://download.01.org/0day-ci/archive/20260810/202608101725.AtQNuubl-lkp@intel.com/config) compiler: clang version 22.1.3 (https://github.com/llvm/llvm-project e9846648fd6183ee6d8cbdb4502213fcf902a211) smatch: v0.5.0-9187-g5189e3fb 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 | Reported-by: Dan Carpenter | Closes: https://lore.kernel.org/r/202608101725.AtQNuubl-lkp@intel.com/ smatch warnings: drivers/net/wireless/mediatek/mt76/mt7925/nan.c:210 mt7925_nan_mp_tlv() warn: impossible condition '(master_pref > 255) => (0-255 > 255)' vim +210 drivers/net/wireless/mediatek/mt76/mt7925/nan.c a5487a6824068cb Sean Wang 2026-06-24 193 a5487a6824068cb Sean Wang 2026-06-24 194 static int a5487a6824068cb Sean Wang 2026-06-24 195 mt7925_nan_mp_tlv(struct sk_buff *skb, u8 master_pref) a5487a6824068cb Sean Wang 2026-06-24 196 { a5487a6824068cb Sean Wang 2026-06-24 197 struct mt7925_nan_master_preference_tlv *mp_tlv = NULL; a5487a6824068cb Sean Wang 2026-06-24 198 struct tlv *tlv = NULL; a5487a6824068cb Sean Wang 2026-06-24 199 a5487a6824068cb Sean Wang 2026-06-24 200 if (!skb) a5487a6824068cb Sean Wang 2026-06-24 201 return -EINVAL; a5487a6824068cb Sean Wang 2026-06-24 202 a5487a6824068cb Sean Wang 2026-06-24 203 tlv = mt76_connac_mcu_add_tlv(skb, NAN_UNI_CMD_SET_MASTER_PREFERENCE, a5487a6824068cb Sean Wang 2026-06-24 204 sizeof(struct mt7925_nan_master_preference_tlv)); a5487a6824068cb Sean Wang 2026-06-24 205 if (!tlv) a5487a6824068cb Sean Wang 2026-06-24 206 return -ENOMEM; a5487a6824068cb Sean Wang 2026-06-24 207 a5487a6824068cb Sean Wang 2026-06-24 208 mp_tlv = (struct mt7925_nan_master_preference_tlv *)tlv; a5487a6824068cb Sean Wang 2026-06-24 209 a5487a6824068cb Sean Wang 2026-06-24 @210 if (master_pref > NAN_MAX_MASTER_PREFERENCE) a5487a6824068cb Sean Wang 2026-06-24 211 return 0; a5487a6824068cb Sean Wang 2026-06-24 212 a5487a6824068cb Sean Wang 2026-06-24 213 mp_tlv->master_preference = master_pref; a5487a6824068cb Sean Wang 2026-06-24 214 a5487a6824068cb Sean Wang 2026-06-24 215 return 0; a5487a6824068cb Sean Wang 2026-06-24 216 } a5487a6824068cb Sean Wang 2026-06-24 217 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki