tree: https://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git for-next head: cc4b66eaf7fbeab15e9c3dd2f2c12e41a1d741eb commit: a32642fa6cda14b43626226169dc248ccdbdd63d [112/127] btrfs: raid56: make rbio_add_io_page() subpage compatible config: x86_64-randconfig-a015 (https://download.01.org/0day-ci/archive/20220409/202204091154.PHMWy5ha-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.2.0-19) 11.2.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git/commit/?id=a32642fa6cda14b43626226169dc248ccdbdd63d git remote add kdave https://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git git fetch --no-tags kdave for-next git checkout a32642fa6cda14b43626226169dc248ccdbdd63d # save the config file to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash arch/x86/kvm/ fs/btrfs/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> fs/btrfs/raid56.c:1000: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Get a sector pointer specified by its @stripe_nr and @sector_nr vim +1000 fs/btrfs/raid56.c 998 999 /** > 1000 * Get a sector pointer specified by its @stripe_nr and @sector_nr 1001 * 1002 * @rbio: The raid bio 1003 * @stripe_nr: Stripe number, valid range [0, real_stripe) 1004 * @sector_nr: Sector number inside the stripe, 1005 * valid range [0, stripe_nsectors) 1006 * @bio_list_only: Whether to use sectors inside the bio list only. 1007 * 1008 * The read/modify/write code wants to reuse the original bio page as much 1009 * as possible, and only use stripe_sectors as fallback. 1010 */ 1011 static struct sector_ptr *sector_in_rbio(struct btrfs_raid_bio *rbio, 1012 int stripe_nr, int sector_nr, 1013 bool bio_list_only) 1014 { 1015 struct sector_ptr *sector; 1016 int index; 1017 1018 ASSERT(stripe_nr >= 0 && stripe_nr < rbio->real_stripes); 1019 ASSERT(sector_nr >= 0 && sector_nr < rbio->stripe_nsectors); 1020 1021 index = stripe_nr * rbio->stripe_nsectors + sector_nr; 1022 ASSERT(index >= 0 && index < rbio->nr_sectors); 1023 1024 spin_lock_irq(&rbio->bio_list_lock); 1025 sector = &rbio->bio_sectors[index]; 1026 if (sector->page || bio_list_only) { 1027 /* Don't return sector without a valid page pointer */ 1028 if (!sector->page) 1029 sector = NULL; 1030 spin_unlock_irq(&rbio->bio_list_lock); 1031 return sector; 1032 } 1033 spin_unlock_irq(&rbio->bio_list_lock); 1034 1035 return &rbio->stripe_sectors[index]; 1036 } 1037 -- 0-DAY CI Kernel Test Service https://01.org/lkp
