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X-CSE-ConnectionGUID: o/Jte0ujQIyOXfqj7dT+UA== X-CSE-MsgGUID: otUGgUrTTwaEk/nH3yxCHg== X-IronPort-AV: E=McAfee;i="6800,10657,11722"; a="77598418" X-IronPort-AV: E=Sophos;i="6.23,107,1770624000"; d="scan'208";a="77598418" Received: from orviesa003.jf.intel.com ([10.64.159.143]) by orvoesa107.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Mar 2026 14:55:24 -0800 X-CSE-ConnectionGUID: htWg7lEFRlybX9uySWVXlQ== X-CSE-MsgGUID: h8ouixoaT8+JuVm4+ZsPdg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,107,1770624000"; d="scan'208";a="223480544" Received: from lkp-server01.sh.intel.com (HELO 058beb05654c) ([10.239.97.150]) by orviesa003.jf.intel.com with ESMTP; 07 Mar 2026 14:55:21 -0800 Received: from kbuild by 058beb05654c with local (Exim 4.98.2) (envelope-from ) id 1vz0YH-000000002hF-3ZvM; Sat, 07 Mar 2026 22:55:17 +0000 Date: Sun, 8 Mar 2026 06:55:12 +0800 From: kernel test robot To: David Yang , netdev@vger.kernel.org Cc: oe-kbuild-all@lists.linux.dev, David Yang , Andrew Lunn , Vladimir Oltean , Eric Dumazet , Jakub Kicinski , Paolo Abeni , linux-kernel@vger.kernel.org Subject: Re: [PATCH net-next v4 2/2] net: dsa: yt921x: Use u64_stats_t for MIB stats Message-ID: <202603080637.k8pQfAUS-lkp@intel.com> References: <20260306154637.3126497-3-mmyangfl@gmail.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260306154637.3126497-3-mmyangfl@gmail.com> Hi David, kernel test robot noticed the following build errors: [auto build test ERROR on net-next/main] url: https://github.com/intel-lab-lkp/linux/commits/David-Yang/net-dsa-yt921x-Return-early-for-failed-MIB-read/20260307-004743 base: net-next/main patch link: https://lore.kernel.org/r/20260306154637.3126497-3-mmyangfl%40gmail.com patch subject: [PATCH net-next v4 2/2] net: dsa: yt921x: Use u64_stats_t for MIB stats config: i386-buildonly-randconfig-003-20260307 (https://download.01.org/0day-ci/archive/20260308/202603080637.k8pQfAUS-lkp@intel.com/config) compiler: gcc-12 (Debian 12.4.0-5) 12.4.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260308/202603080637.k8pQfAUS-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/202603080637.k8pQfAUS-lkp@intel.com/ All errors (new ones prefixed by >>): In file included from drivers/net/dsa/yt921x.c:29: >> drivers/net/dsa/yt921x.h:588:29: error: flexible array member in union 588 | u64_stats_t stats[]; | ^~~~~ vim +588 drivers/net/dsa/yt921x.h 533 534 struct yt921x_mib { 535 union { 536 struct { 537 u64_stats_t rx_broadcast; 538 u64_stats_t rx_pause; 539 u64_stats_t rx_multicast; 540 u64_stats_t rx_crc_errors; 541 542 u64_stats_t rx_alignment_errors; 543 u64_stats_t rx_undersize_errors; 544 u64_stats_t rx_fragment_errors; 545 u64_stats_t rx_64byte; 546 547 u64_stats_t rx_65_127byte; 548 u64_stats_t rx_128_255byte; 549 u64_stats_t rx_256_511byte; 550 u64_stats_t rx_512_1023byte; 551 552 u64_stats_t rx_1024_1518byte; 553 u64_stats_t rx_jumbo; 554 u64_stats_t rx_good_bytes; 555 556 u64_stats_t rx_bad_bytes; 557 u64_stats_t rx_oversize_errors; 558 559 u64_stats_t rx_dropped; 560 u64_stats_t tx_broadcast; 561 u64_stats_t tx_pause; 562 u64_stats_t tx_multicast; 563 564 u64_stats_t tx_undersize_errors; 565 u64_stats_t tx_64byte; 566 u64_stats_t tx_65_127byte; 567 u64_stats_t tx_128_255byte; 568 569 u64_stats_t tx_256_511byte; 570 u64_stats_t tx_512_1023byte; 571 u64_stats_t tx_1024_1518byte; 572 u64_stats_t tx_jumbo; 573 574 u64_stats_t tx_good_bytes; 575 u64_stats_t tx_collisions; 576 577 u64_stats_t tx_aborted_errors; 578 u64_stats_t tx_multiple_collisions; 579 u64_stats_t tx_single_collisions; 580 u64_stats_t tx_good; 581 582 u64_stats_t tx_deferred; 583 u64_stats_t tx_late_collisions; 584 u64_stats_t rx_oam; 585 u64_stats_t tx_oam; 586 }; 587 > 588 u64_stats_t stats[]; 589 }; 590 }; 591 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki