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X-CSE-ConnectionGUID: 4WSW2Kv0T9u0xdX/ai8SFA== X-CSE-MsgGUID: Knc2MzFdTla46BzUKrXnzw== X-IronPort-AV: E=McAfee;i="6800,10657,11661"; a="69102903" X-IronPort-AV: E=Sophos;i="6.21,202,1763452800"; d="scan'208";a="69102903" Received: from orviesa010.jf.intel.com ([10.64.159.150]) by orvoesa108.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Jan 2026 14:06:27 -0800 X-CSE-ConnectionGUID: rCM4mhlLTSaZv9VjTfUnHQ== X-CSE-MsgGUID: LLaNJQBTSYWqD3JU+08MLg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,202,1763452800"; d="scan'208";a="201482744" Received: from lkp-server01.sh.intel.com (HELO 765f4a05e27f) ([10.239.97.150]) by orviesa010.jf.intel.com with ESMTP; 04 Jan 2026 14:06:26 -0800 Received: from kbuild by 765f4a05e27f with local (Exim 4.98.2) (envelope-from ) id 1vcWEx-000000000o9-2MAL; Sun, 04 Jan 2026 22:06:23 +0000 Date: Mon, 05 Jan 2026 06:05:30 +0800 From: kernel test robot To: Wei Fang Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, Jakub Kicinski , Claudiu Manoil Subject: drivers/net/ethernet/freescale/enetc/enetc.h:84:9: warning: conversion from 'long unsigned int' to 'u16' {aka 'short unsigned int'} changes value from '130560' to '65024' Message-ID: <202601050637.kHEKKOG7-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 54e82e93ca93e49cb4c33988adec5c8cb9d0df31 commit: e59bc32df2e989f034623a580e30a2a72af33b3f net: enetc: correct the value of ENETC_RXB_TRUESIZE date: 3 months ago config: powerpc-randconfig-001-20260105 (https://download.01.org/0day-ci/archive/20260105/202601050637.kHEKKOG7-lkp@intel.com/config) compiler: powerpc-linux-gcc (GCC) 12.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260105/202601050637.kHEKKOG7-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/202601050637.kHEKKOG7-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from drivers/net/ethernet/freescale/enetc/enetc.c:4: drivers/net/ethernet/freescale/enetc/enetc.c: In function 'enetc_build_xdp_buff': >> drivers/net/ethernet/freescale/enetc/enetc.h:84:9: warning: conversion from 'long unsigned int' to 'u16' {aka 'short unsigned int'} changes value from '130560' to '65024' [-Woverflow] 84 | (SKB_WITH_OVERHEAD(ENETC_RXB_TRUESIZE) - XDP_PACKET_HEADROOM) | ^ drivers/net/ethernet/freescale/enetc/enetc.c:1876:24: note: in expansion of macro 'ENETC_RXB_DMA_SIZE_XDP' 1876 | size = ENETC_RXB_DMA_SIZE_XDP; | ^~~~~~~~~~~~~~~~~~~~~~ vim +84 drivers/net/ethernet/freescale/enetc/enetc.h 69797ff888d3db Wei Fang 2024-12-19 77 d4fd0404c1c95b Claudiu Manoil 2019-01-22 78 #define ENETC_RX_MAXFRM_SIZE ENETC_MAC_MAXFRM_SIZE e59bc32df2e989 Wei Fang 2025-10-16 79 #define ENETC_RXB_TRUESIZE (PAGE_SIZE >> 1) d4fd0404c1c95b Claudiu Manoil 2019-01-22 80 #define ENETC_RXB_PAD NET_SKB_PAD /* add extra space if needed */ d4fd0404c1c95b Claudiu Manoil 2019-01-22 81 #define ENETC_RXB_DMA_SIZE \ d4fd0404c1c95b Claudiu Manoil 2019-01-22 82 (SKB_WITH_OVERHEAD(ENETC_RXB_TRUESIZE) - ENETC_RXB_PAD) d1b15102dd16ad Vladimir Oltean 2021-03-31 83 #define ENETC_RXB_DMA_SIZE_XDP \ d1b15102dd16ad Vladimir Oltean 2021-03-31 @84 (SKB_WITH_OVERHEAD(ENETC_RXB_TRUESIZE) - XDP_PACKET_HEADROOM) d4fd0404c1c95b Claudiu Manoil 2019-01-22 85 :::::: The code at line 84 was first introduced by commit :::::: d1b15102dd16adc17fd5e4db8a485e6459f98906 net: enetc: add support for XDP_DROP and XDP_PASS :::::: TO: Vladimir Oltean :::::: CC: David S. Miller -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki