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X-CSE-ConnectionGUID: JFUk1RAnS2qGmcAtlUwuXA== X-CSE-MsgGUID: UugvOS6DR5SDjsONwY4OoQ== X-IronPort-AV: E=McAfee;i="6800,10657,11917"; a="93709526" X-IronPort-AV: E=Sophos;i="6.27,125,1787036400"; d="scan'208";a="93709526" Received: from orviesa005.jf.intel.com ([10.64.159.145]) by fmvoesa107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Sep 2026 22:42:40 -0700 X-CSE-ConnectionGUID: oQ/pQ777SSut7c5KQcK/IQ== X-CSE-MsgGUID: hkDxJEvxR3eClTFeebMSEw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,125,1787036400"; d="scan'208";a="278538102" Received: from igk-lkp-server01.igk.intel.com (HELO 04362d00df5a) ([10.211.93.152]) by orviesa005.jf.intel.com with ESMTP; 26 Sep 2026 22:42:38 -0700 Received: from kbuild by 04362d00df5a with local (Exim 4.98.2) (envelope-from ) id 1xAhek-000000000Rz-35yG; Sun, 27 Sep 2026 05:42:34 +0000 Date: Sun, 27 Sep 2026 07:41:42 +0200 From: kernel test robot To: oe-kbuild@lists.linux.dev Cc: lkp@intel.com, Dan Carpenter Subject: [linux-next:master 5319/10910] drivers/net/ethernet/airoha/airoha_eth.c:513 airoha_fe_lro_rxq_enable() warn: subtract is higher precedence than shift Message-ID: <202609270710.uw49PknB-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: Lorenzo Bianconi CC: Jakub Kicinski CC: Simon Horman tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: f5f84daefcd92d7a630066635ecea1433ed5eac7 commit: a952507ca094d4e77bea78b462a0482d3c546c9e [5319/10910] net: airoha: add LRO offload support :::::: branch date: 2 days ago :::::: commit date: 12 days ago config: mips-randconfig-r2200-20260926 (https://download.01.org/0day-ci/archive/20260927/202609270710.uw49PknB-lkp@intel.com/config) compiler: mips64-linux-gcc (GCC) 15.2.0 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/202609270710.uw49PknB-lkp@intel.com/ New smatch warnings: drivers/net/ethernet/airoha/airoha_eth.c:513 airoha_fe_lro_rxq_enable() warn: subtract is higher precedence than shift drivers/net/ethernet/airoha/airoha_eth.c:513 airoha_fe_lro_rxq_enable() warn: subtract is higher precedence than shift drivers/net/ethernet/airoha/airoha_eth.c:513 airoha_fe_lro_rxq_enable() warn: subtract is higher precedence than shift drivers/net/ethernet/airoha/airoha_eth.c:513 airoha_fe_lro_rxq_enable() warn: subtract is higher precedence than shift Old smatch warnings: drivers/net/ethernet/airoha/airoha_eth.c:2304 airoha_enable_gdm2_loopback() warn: subtract is higher precedence than shift drivers/net/ethernet/airoha/airoha_eth.c:2304 airoha_enable_gdm2_loopback() warn: subtract is higher precedence than shift drivers/net/ethernet/airoha/airoha_eth.c:2304 airoha_enable_gdm2_loopback() warn: subtract is higher precedence than shift drivers/net/ethernet/airoha/airoha_eth.c:2304 airoha_enable_gdm2_loopback() warn: subtract is higher precedence than shift drivers/net/ethernet/airoha/airoha_eth.c:2862 airoha_qdma_set_chan_tx_sched() warn: subtract is higher precedence than shift drivers/net/ethernet/airoha/airoha_eth.c:2862 airoha_qdma_set_chan_tx_sched() warn: subtract is higher precedence than shift drivers/net/ethernet/airoha/airoha_eth.c:2862 airoha_qdma_set_chan_tx_sched() warn: subtract is higher precedence than shift drivers/net/ethernet/airoha/airoha_eth.c:2862 airoha_qdma_set_chan_tx_sched() warn: subtract is higher precedence than shift vim +513 drivers/net/ethernet/airoha/airoha_eth.c 23020f04932701d drivers/net/ethernet/mediatek/airoha_eth.c Lorenzo Bianconi 2024-07-12 495 a952507ca094d4e drivers/net/ethernet/airoha/airoha_eth.c Lorenzo Bianconi 2026-09-09 496 static void airoha_fe_lro_rxq_enable(struct airoha_eth *eth, int qdma_id, a952507ca094d4e drivers/net/ethernet/airoha/airoha_eth.c Lorenzo Bianconi 2026-09-09 497 int lro_queue_index, int qid, a952507ca094d4e drivers/net/ethernet/airoha/airoha_eth.c Lorenzo Bianconi 2026-09-09 498 int buf_size) a952507ca094d4e drivers/net/ethernet/airoha/airoha_eth.c Lorenzo Bianconi 2026-09-09 499 { a952507ca094d4e drivers/net/ethernet/airoha/airoha_eth.c Lorenzo Bianconi 2026-09-09 500 int id = qdma_id + 1; a952507ca094d4e drivers/net/ethernet/airoha/airoha_eth.c Lorenzo Bianconi 2026-09-09 501 a952507ca094d4e drivers/net/ethernet/airoha/airoha_eth.c Lorenzo Bianconi 2026-09-09 502 airoha_fe_rmw(eth, REG_CDM_LRO_LIMIT(id), a952507ca094d4e drivers/net/ethernet/airoha/airoha_eth.c Lorenzo Bianconi 2026-09-09 503 CDM_LRO_AGG_NUM_MASK | CDM_LRO_AGG_SIZE_MASK, a952507ca094d4e drivers/net/ethernet/airoha/airoha_eth.c Lorenzo Bianconi 2026-09-09 504 FIELD_PREP(CDM_LRO_AGG_SIZE_MASK, buf_size) | a952507ca094d4e drivers/net/ethernet/airoha/airoha_eth.c Lorenzo Bianconi 2026-09-09 505 FIELD_PREP(CDM_LRO_AGG_NUM_MASK, a952507ca094d4e drivers/net/ethernet/airoha/airoha_eth.c Lorenzo Bianconi 2026-09-09 506 AIROHA_RXQ_LRO_MAX_AGG_COUNT)); a952507ca094d4e drivers/net/ethernet/airoha/airoha_eth.c Lorenzo Bianconi 2026-09-09 507 airoha_fe_rmw(eth, REG_CDM_LRO_AGE_TIME(id), a952507ca094d4e drivers/net/ethernet/airoha/airoha_eth.c Lorenzo Bianconi 2026-09-09 508 CDM_LRO_AGE_TIME_MASK | CDM_LRO_AGG_TIME_MASK, a952507ca094d4e drivers/net/ethernet/airoha/airoha_eth.c Lorenzo Bianconi 2026-09-09 509 FIELD_PREP(CDM_LRO_AGE_TIME_MASK, a952507ca094d4e drivers/net/ethernet/airoha/airoha_eth.c Lorenzo Bianconi 2026-09-09 510 AIROHA_RXQ_LRO_MAX_AGE_TIME) | a952507ca094d4e drivers/net/ethernet/airoha/airoha_eth.c Lorenzo Bianconi 2026-09-09 511 FIELD_PREP(CDM_LRO_AGG_TIME_MASK, a952507ca094d4e drivers/net/ethernet/airoha/airoha_eth.c Lorenzo Bianconi 2026-09-09 512 AIROHA_RXQ_LRO_MAX_AGG_TIME)); a952507ca094d4e drivers/net/ethernet/airoha/airoha_eth.c Lorenzo Bianconi 2026-09-09 @513 airoha_fe_rmw(eth, REG_CDM_LRO_RXQ(id, lro_queue_index), a952507ca094d4e drivers/net/ethernet/airoha/airoha_eth.c Lorenzo Bianconi 2026-09-09 514 LRO_RXQ_MASK(lro_queue_index), a952507ca094d4e drivers/net/ethernet/airoha/airoha_eth.c Lorenzo Bianconi 2026-09-09 515 __field_prep(LRO_RXQ_MASK(lro_queue_index), qid)); a952507ca094d4e drivers/net/ethernet/airoha/airoha_eth.c Lorenzo Bianconi 2026-09-09 516 airoha_fe_set(eth, REG_CDM_LRO_EN(id), BIT(lro_queue_index)); a952507ca094d4e drivers/net/ethernet/airoha/airoha_eth.c Lorenzo Bianconi 2026-09-09 517 } a952507ca094d4e drivers/net/ethernet/airoha/airoha_eth.c Lorenzo Bianconi 2026-09-09 518 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki