tree: git://git.infradead.org/users/hch/block.git quota-compat head: fa3b78c0ea20eaa61ef72fec81601bf25eb63904 commit: af6b89403213d2a9bc353618b79215bf9a11e47f [1/2] compat: lift compat_s64 and compat_u64 to <linux/compat.h> config: x86_64-rhel-7.6-kselftests (attached as .config) compiler: gcc-9 (Debian 9.3.0-14) 9.3.0 reproduce (this is a W=1 build): git checkout af6b89403213d2a9bc353618b79215bf9a11e47f # save the attached .config to linux build tree make W=1 ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): kernel/trace/blktrace.c: In function 'blk_trace_ioctl': 727 | case BLKTRACESETUP32: | ^~~~ kernel/trace/blktrace.c:722:2: note: previously used here 722 | case BLKTRACESETUP: | ^~~~ vim +727 kernel/trace/blktrace.c 2056a782f8e7e65 block/blktrace.c Jens Axboe 2006-03-23 695 5acb3cc2c2e9d30 kernel/trace/blktrace.c Waiman Long 2017-09-20 696 /* 5acb3cc2c2e9d30 kernel/trace/blktrace.c Waiman Long 2017-09-20 697 * When reading or writing the blktrace sysfs files, the references to the 5acb3cc2c2e9d30 kernel/trace/blktrace.c Waiman Long 2017-09-20 698 * opened sysfs or device files should prevent the underlying block device 5acb3cc2c2e9d30 kernel/trace/blktrace.c Waiman Long 2017-09-20 699 * from being removed. So no further delete protection is really needed. 5acb3cc2c2e9d30 kernel/trace/blktrace.c Waiman Long 2017-09-20 700 */ 5acb3cc2c2e9d30 kernel/trace/blktrace.c Waiman Long 2017-09-20 701 2056a782f8e7e65 block/blktrace.c Jens Axboe 2006-03-23 702 /** 2056a782f8e7e65 block/blktrace.c Jens Axboe 2006-03-23 703 * blk_trace_ioctl: - handle the ioctls associated with tracing 2056a782f8e7e65 block/blktrace.c Jens Axboe 2006-03-23 704 * @bdev: the block device 2056a782f8e7e65 block/blktrace.c Jens Axboe 2006-03-23 705 * @cmd: the ioctl cmd 2056a782f8e7e65 block/blktrace.c Jens Axboe 2006-03-23 706 * @arg: the argument data, if any 2056a782f8e7e65 block/blktrace.c Jens Axboe 2006-03-23 707 * 2056a782f8e7e65 block/blktrace.c Jens Axboe 2006-03-23 708 **/ 2056a782f8e7e65 block/blktrace.c Jens Axboe 2006-03-23 709 int blk_trace_ioctl(struct block_device *bdev, unsigned cmd, char __user *arg) 2056a782f8e7e65 block/blktrace.c Jens Axboe 2006-03-23 710 { 165125e1e480f95 block/blktrace.c Jens Axboe 2007-07-24 711 struct request_queue *q; 2056a782f8e7e65 block/blktrace.c Jens Axboe 2006-03-23 712 int ret, start = 0; 6da127ad0918f93 block/blktrace.c Christof Schmitt 2008-01-11 713 char b[BDEVNAME_SIZE]; 2056a782f8e7e65 block/blktrace.c Jens Axboe 2006-03-23 714 2056a782f8e7e65 block/blktrace.c Jens Axboe 2006-03-23 715 q = bdev_get_queue(bdev); 2056a782f8e7e65 block/blktrace.c Jens Axboe 2006-03-23 716 if (!q) 2056a782f8e7e65 block/blktrace.c Jens Axboe 2006-03-23 717 return -ENXIO; 2056a782f8e7e65 block/blktrace.c Jens Axboe 2006-03-23 718 5acb3cc2c2e9d30 kernel/trace/blktrace.c Waiman Long 2017-09-20 719 mutex_lock(&q->blk_trace_mutex); 2056a782f8e7e65 block/blktrace.c Jens Axboe 2006-03-23 720 2056a782f8e7e65 block/blktrace.c Jens Axboe 2006-03-23 721 switch (cmd) { 2056a782f8e7e65 block/blktrace.c Jens Axboe 2006-03-23 722 case BLKTRACESETUP: f36f21ecca9ee68 block/blktrace.c Jean Delvare 2008-05-12 723 bdevname(bdev, b); 1f2cac107c591c2 kernel/trace/blktrace.c Jens Axboe 2017-11-05 724 ret = __blk_trace_setup(q, b, bdev->bd_dev, bdev, arg); 2056a782f8e7e65 block/blktrace.c Jens Axboe 2006-03-23 725 break; 62c2a7d969f3016 kernel/trace/blktrace.c Arnd Bergmann 2010-07-07 726 #if defined(CONFIG_COMPAT) && defined(CONFIG_X86_64) 62c2a7d969f3016 kernel/trace/blktrace.c Arnd Bergmann 2010-07-07 @727 case BLKTRACESETUP32: 62c2a7d969f3016 kernel/trace/blktrace.c Arnd Bergmann 2010-07-07 728 bdevname(bdev, b); 62c2a7d969f3016 kernel/trace/blktrace.c Arnd Bergmann 2010-07-07 729 ret = compat_blk_trace_setup(q, b, bdev->bd_dev, bdev, arg); 62c2a7d969f3016 kernel/trace/blktrace.c Arnd Bergmann 2010-07-07 730 break; 62c2a7d969f3016 kernel/trace/blktrace.c Arnd Bergmann 2010-07-07 731 #endif 2056a782f8e7e65 block/blktrace.c Jens Axboe 2006-03-23 732 case BLKTRACESTART: 2056a782f8e7e65 block/blktrace.c Jens Axboe 2006-03-23 733 start = 1; f6d85f04e29859d kernel/trace/blktrace.c Mathieu Malaterre 2019-01-14 734 /* fall through */ 2056a782f8e7e65 block/blktrace.c Jens Axboe 2006-03-23 735 case BLKTRACESTOP: 1f2cac107c591c2 kernel/trace/blktrace.c Jens Axboe 2017-11-05 736 ret = __blk_trace_startstop(q, start); 2056a782f8e7e65 block/blktrace.c Jens Axboe 2006-03-23 737 break; 2056a782f8e7e65 block/blktrace.c Jens Axboe 2006-03-23 738 case BLKTRACETEARDOWN: 1f2cac107c591c2 kernel/trace/blktrace.c Jens Axboe 2017-11-05 739 ret = __blk_trace_remove(q); 2056a782f8e7e65 block/blktrace.c Jens Axboe 2006-03-23 740 break; 2056a782f8e7e65 block/blktrace.c Jens Axboe 2006-03-23 741 default: 2056a782f8e7e65 block/blktrace.c Jens Axboe 2006-03-23 742 ret = -ENOTTY; 2056a782f8e7e65 block/blktrace.c Jens Axboe 2006-03-23 743 break; 2056a782f8e7e65 block/blktrace.c Jens Axboe 2006-03-23 744 } 2056a782f8e7e65 block/blktrace.c Jens Axboe 2006-03-23 745 5acb3cc2c2e9d30 kernel/trace/blktrace.c Waiman Long 2017-09-20 746 mutex_unlock(&q->blk_trace_mutex); 2056a782f8e7e65 block/blktrace.c Jens Axboe 2006-03-23 747 return ret; 2056a782f8e7e65 block/blktrace.c Jens Axboe 2006-03-23 748 } 2056a782f8e7e65 block/blktrace.c Jens Axboe 2006-03-23 749 :::::: The code at line 727 was first introduced by commit :::::: 62c2a7d969f30163f733c81158254b3095b23e72 block: push BKL into blktrace ioctls :::::: TO: Arnd Bergmann <arnd(a)arndb.de&gt; :::::: CC: Jens Axboe <jaxboe(a)fusionio.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org