From: kernel test robot <lkp@intel.com>
To: cros-kernel-buildreports@googlegroups.com
Cc: oe-kbuild-all@lists.linux.dev
Subject: [android-common:android16-6.12 0/2] htmldocs: ./include/linux/fs.h:998: warning: Excess struct member 'order' description in 'file_ra_state'
Date: Wed, 11 Feb 2026 06:50:03 +0100 [thread overview]
Message-ID: <202602110609.b761icz4-lkp@intel.com> (raw)
tree: https://android.googlesource.com/kernel/common android16-6.12
head: 091c158be9d8e879df6ea76a6d91885c12ce322b
commit: 23aadcd1d9764a7dba1c6e3f6d63f89c2ebd435a [0/2] BACKPORT: mm/readahead: store folio order in struct file_ra_state
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
docutils: docutils (Docutils 0.21.2, Python 3.13.5, on linux)
reproduce: (https://download.01.org/0day-ci/archive/20260211/202602110609.b761icz4-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 <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202602110609.b761icz4-lkp@intel.com/
All warnings (new ones prefixed by >>):
./include/linux/usb.h:1289: warning: Function parameter or struct member 'ANDROID_KABI_RESERVE(4' not described in 'usb_driver'
./include/linux/usb.h:1686: warning: Function parameter or struct member 'ANDROID_KABI_RESERVE(1' not described in 'urb'
./include/linux/usb.h:1686: warning: Function parameter or struct member 'ANDROID_KABI_RESERVE(2' not described in 'urb'
./include/linux/usb.h:1686: warning: Function parameter or struct member 'ANDROID_KABI_RESERVE(3' not described in 'urb'
./include/linux/usb.h:1686: warning: Function parameter or struct member 'ANDROID_KABI_RESERVE(4' not described in 'urb'
>> ./include/linux/fs.h:998: warning: Excess struct member 'order' description in 'file_ra_state'
./include/linux/fs.h:1086: warning: Function parameter or struct member 'ANDROID_KABI_RESERVE(1' not described in 'file'
./include/linux/fs.h:1086: warning: Function parameter or struct member 'ANDROID_KABI_RESERVE(2' not described in 'file'
./fs/eventpoll.c:2068: warning: Function parameter or struct member 'ep' not described in 'ep_get_upwards_depth_proc'
./fs/eventpoll.c:2068: warning: Function parameter or struct member 'depth' not described in 'ep_get_upwards_depth_proc'
./include/drm/drm_drv.h:372: warning: Incorrect use of kernel-doc format: * @fbdev_probe
vim +998 ./include/linux/fs.h
^1da177e4c3f41 Linus Torvalds 2005-04-16 975
c790fbf20a53e8 Matthew Wilcox (Oracle 2021-04-07 976) /**
c790fbf20a53e8 Matthew Wilcox (Oracle 2021-04-07 977) * struct file_ra_state - Track a file's readahead state.
c790fbf20a53e8 Matthew Wilcox (Oracle 2021-04-07 978) * @start: Where the most recent readahead started.
c790fbf20a53e8 Matthew Wilcox (Oracle 2021-04-07 979) * @size: Number of pages read in the most recent readahead.
84dacdbd5352bf NeilBrown 2022-03-22 980 * @async_size: Numer of pages that were/are not needed immediately
84dacdbd5352bf NeilBrown 2022-03-22 981 * and so were/are genuinely "ahead". Start next readahead when
84dacdbd5352bf NeilBrown 2022-03-22 982 * the first of these pages is accessed.
84dacdbd5352bf NeilBrown 2022-03-22 983 * @ra_pages: Maximum size of a readahead request, copied from the bdi.
23aadcd1d9764a Ryan Roberts 2025-06-09 984 * @order: Preferred folio order used for most recent readahead.
c790fbf20a53e8 Matthew Wilcox (Oracle 2021-04-07 985) * @mmap_miss: How many mmap accesses missed in the page cache.
c790fbf20a53e8 Matthew Wilcox (Oracle 2021-04-07 986) * @prev_pos: The last byte in the most recent read request.
84dacdbd5352bf NeilBrown 2022-03-22 987 *
84dacdbd5352bf NeilBrown 2022-03-22 988 * When this structure is passed to ->readahead(), the "most recent"
84dacdbd5352bf NeilBrown 2022-03-22 989 * readahead means the current readahead.
^1da177e4c3f41 Linus Torvalds 2005-04-16 990 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 991 struct file_ra_state {
c790fbf20a53e8 Matthew Wilcox (Oracle 2021-04-07 992) pgoff_t start;
c790fbf20a53e8 Matthew Wilcox (Oracle 2021-04-07 993) unsigned int size;
c790fbf20a53e8 Matthew Wilcox (Oracle 2021-04-07 994) unsigned int async_size;
c790fbf20a53e8 Matthew Wilcox (Oracle 2021-04-07 995) unsigned int ra_pages;
c790fbf20a53e8 Matthew Wilcox (Oracle 2021-04-07 996) unsigned int mmap_miss;
c790fbf20a53e8 Matthew Wilcox (Oracle 2021-04-07 997) loff_t prev_pos;
^1da177e4c3f41 Linus Torvalds 2005-04-16 @998 };
^1da177e4c3f41 Linus Torvalds 2005-04-16 999
:::::: The code at line 998 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2
:::::: TO: Linus Torvalds <torvalds@ppc970.osdl.org>
:::::: CC: Linus Torvalds <torvalds@ppc970.osdl.org>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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