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X-CSE-ConnectionGUID: 8h8Ip3HIQmi2VT/QZJoF4Q== X-CSE-MsgGUID: WwYFTwzbSRSRFWT7S0JS9g== X-IronPort-AV: E=McAfee;i="6800,10657,11894"; a="106412031" X-IronPort-AV: E=Sophos;i="6.25,258,1779174000"; d="scan'208";a="106412031" Received: from orviesa002.jf.intel.com ([10.64.159.142]) by fmvoesa102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Sep 2026 00:24:08 -0700 X-CSE-ConnectionGUID: 8VG1CvdvTvimyBPwvoWvBQ== X-CSE-MsgGUID: 9tkIj9OGSoWtXJTp7rilQA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,258,1779174000"; d="scan'208";a="299502687" Received: from lkp-server01.sh.intel.com (HELO bfac249b2189) ([10.239.97.150]) by orviesa002.jf.intel.com with ESMTP; 03 Sep 2026 00:24:07 -0700 Received: from kbuild by bfac249b2189 with local (Exim 4.98.2) (envelope-from ) id 1x21no-000000004IQ-2zhk; Thu, 03 Sep 2026 07:24:04 +0000 Date: Thu, 03 Sep 2026 15:23:45 +0800 From: kernel test robot To: cros-kernel-buildreports@googlegroups.com Cc: oe-kbuild-all@lists.linux.dev Subject: [android-common:android12-kiwi-5.10 278/278] kernel/power/swap.c:645: warning: Function parameter or member 'data' not described in 'compress_threadfn' Message-ID: <202609031533.Xz9C8rZL-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: oe-kbuild-all@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: Hi Nikhil, FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant. tree: https://android.googlesource.com/kernel/common android12-kiwi-5.10 head: ae917b3c7332e08006443a49c261aa97ce703103 commit: 31414b7c10febdb2006bacd5de9de2f63785ac58 [278/278] BACKPORT: PM: hibernate: Rename lzo* to make it generic config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20260903/202609031533.Xz9C8rZL-lkp@intel.com/config) compiler: clang version 24.0.0git (https://github.com/llvm/llvm-project 2c2cffa015e9549aafba9e514384b08204c7cc4b) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260903/202609031533.Xz9C8rZL-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/202609031533.Xz9C8rZL-lkp@intel.com/ All warnings (new ones prefixed by >>): kernel/power/swap.c:95: warning: cannot understand function prototype: 'struct swap_map_handle ' kernel/power/swap.c:122: warning: cannot understand function prototype: 'struct swsusp_extent ' kernel/power/swap.c:177: warning: Function parameter or member 'swap' not described in 'alloc_swapdev_block' kernel/power/swap.c:197: warning: Function parameter or member 'swap' not described in 'free_all_swap_pages' kernel/power/swap.c:541: warning: Function parameter or member 'handle' not described in 'save_image' kernel/power/swap.c:541: warning: Function parameter or member 'snapshot' not described in 'save_image' kernel/power/swap.c:541: warning: Function parameter or member 'nr_to_write' not described in 'save_image' kernel/power/swap.c:585: warning: cannot understand function prototype: 'struct crc_data ' kernel/power/swap.c:601: warning: Function parameter or member 'data' not described in 'crc32_threadfn' kernel/power/swap.c:627: warning: cannot understand function prototype: 'struct cmp_data ' >> kernel/power/swap.c:645: warning: Function parameter or member 'data' not described in 'compress_threadfn' kernel/power/swap.c:891: warning: Function parameter or member 'nr_pages' not described in 'enough_swap' kernel/power/swap.c:958: warning: Function parameter or member 'handle' not described in 'release_swap_reader' kernel/power/swap.c:1062: warning: Function parameter or member 'handle' not described in 'load_image' kernel/power/swap.c:1062: warning: Function parameter or member 'snapshot' not described in 'load_image' kernel/power/swap.c:1062: warning: Function parameter or member 'nr_to_read' not described in 'load_image' kernel/power/swap.c:1114: warning: cannot understand function prototype: 'struct dec_data ' >> kernel/power/swap.c:1131: warning: Function parameter or member 'data' not described in 'decompress_threadfn' kernel/power/swap.c:1567: warning: Function parameter or member 'mode' not described in 'swsusp_close' vim +645 kernel/power/swap.c 081a9d043c983f1 Bojan Smojver 2011-10-13 640 081a9d043c983f1 Bojan Smojver 2011-10-13 641 /** 081a9d043c983f1 Bojan Smojver 2011-10-13 642 * Compression function that runs in its own thread. 081a9d043c983f1 Bojan Smojver 2011-10-13 643 */ 31414b7c10febdb Nikhil V 2024-01-22 644 static int compress_threadfn(void *data) 081a9d043c983f1 Bojan Smojver 2011-10-13 @645 { 081a9d043c983f1 Bojan Smojver 2011-10-13 646 struct cmp_data *d = data; 081a9d043c983f1 Bojan Smojver 2011-10-13 647 081a9d043c983f1 Bojan Smojver 2011-10-13 648 while (1) { 981a31b7547af42 Hongchen Zhang 2023-11-16 649 wait_event(d->go, atomic_read_acquire(&d->ready) || 081a9d043c983f1 Bojan Smojver 2011-10-13 650 kthread_should_stop()); 081a9d043c983f1 Bojan Smojver 2011-10-13 651 if (kthread_should_stop()) { 081a9d043c983f1 Bojan Smojver 2011-10-13 652 d->thr = NULL; 081a9d043c983f1 Bojan Smojver 2011-10-13 653 d->ret = -1; 981a31b7547af42 Hongchen Zhang 2023-11-16 654 atomic_set_release(&d->stop, 1); 081a9d043c983f1 Bojan Smojver 2011-10-13 655 wake_up(&d->done); 081a9d043c983f1 Bojan Smojver 2011-10-13 656 break; 081a9d043c983f1 Bojan Smojver 2011-10-13 657 } 081a9d043c983f1 Bojan Smojver 2011-10-13 658 atomic_set(&d->ready, 0); 081a9d043c983f1 Bojan Smojver 2011-10-13 659 081a9d043c983f1 Bojan Smojver 2011-10-13 660 d->ret = lzo1x_1_compress(d->unc, d->unc_len, 31414b7c10febdb Nikhil V 2024-01-22 661 d->cmp + CMP_HEADER, &d->cmp_len, 081a9d043c983f1 Bojan Smojver 2011-10-13 662 d->wrk); 981a31b7547af42 Hongchen Zhang 2023-11-16 663 atomic_set_release(&d->stop, 1); 081a9d043c983f1 Bojan Smojver 2011-10-13 664 wake_up(&d->done); 081a9d043c983f1 Bojan Smojver 2011-10-13 665 } 081a9d043c983f1 Bojan Smojver 2011-10-13 666 return 0; 081a9d043c983f1 Bojan Smojver 2011-10-13 667 } f996fc9671d088b Bojan Smojver 2010-09-09 668 :::::: The code at line 645 was first introduced by commit :::::: 081a9d043c983f161b78fdc4671324d1342b86bc PM / Hibernate: Improve performance of LZO/plain hibernation, checksum image :::::: TO: Bojan Smojver :::::: CC: Rafael J. 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