Messages in this thread | | | Date | Wed, 3 Jun 2020 19:32:11 +0800 | From | kernel test robot <> | Subject | kernel/trace/blktrace.c:347:12: sparse: sparse: incorrect type in assignment (different address spaces) |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: d6f9469a03d832dcd17041ed67774ffb5f3e73b3 commit: c780e86dd48ef6467a1146cf7d0fe1e05a635039 blktrace: Protect q->blk_trace with RCU date: 3 months ago config: arc-randconfig-s031-20200603 (attached as .config) compiler: arc-elf-gcc (GCC) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.1-244-g0ee050a8-dirty git checkout c780e86dd48ef6467a1146cf7d0fe1e05a635039 # save the attached .config to linux build tree make W=1 C=1 ARCH=arc CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
sparse warnings: (new ones prefixed by >>)
>> kernel/trace/blktrace.c:347:12: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct blk_trace *bt @@ got struct blk_trace [noderef] <asn:4> *[assigned] old_val @@ kernel/trace/blktrace.c:347:12: sparse: expected struct blk_trace *bt >> kernel/trace/blktrace.c:347:12: sparse: got struct blk_trace [noderef] <asn:4> *[assigned] old_val kernel/trace/blktrace.c:770:5: sparse: sparse: symbol 'blk_trace_bio_get_cgid' was not declared. Should it be static? kernel/trace/blktrace.c:998:50: sparse: sparse: incorrect type in argument 7 (different base types) @@ expected int error @@ got restricted blk_status_t [usertype] bi_status @@ kernel/trace/blktrace.c:998:50: sparse: expected int error kernel/trace/blktrace.c:998:50: sparse: got restricted blk_status_t [usertype] bi_status kernel/trace/blktrace.c:1036:68: sparse: sparse: incorrect type in argument 7 (different base types) @@ expected int error @@ got restricted blk_status_t [usertype] bi_status @@ kernel/trace/blktrace.c:1036:68: sparse: expected int error kernel/trace/blktrace.c:1036:68: sparse: got restricted blk_status_t [usertype] bi_status kernel/trace/blktrace.c:1257:16: sparse: sparse: cast to restricted __be64 kernel/trace/blktrace.c:1257:16: sparse: sparse: cast to restricted __be64 kernel/trace/blktrace.c:1257:16: sparse: sparse: cast to restricted __be64 kernel/trace/blktrace.c:1257:16: sparse: sparse: cast to restricted __be64 kernel/trace/blktrace.c:1257:16: sparse: sparse: cast to restricted __be64 kernel/trace/blktrace.c:1257:16: sparse: sparse: cast to restricted __be64 kernel/trace/blktrace.c:1257:16: sparse: sparse: cast to restricted __be64 kernel/trace/blktrace.c:1257:16: sparse: sparse: cast to restricted __be64 kernel/trace/blktrace.c:1257:16: sparse: sparse: cast to restricted __be64 kernel/trace/blktrace.c:1257:16: sparse: sparse: cast to restricted __be64 kernel/trace/blktrace.c:1264:32: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned long long [usertype] sector_from @@ got restricted __be64 const [usertype] sector_from @@ kernel/trace/blktrace.c:1264:32: sparse: expected unsigned long long [usertype] sector_from kernel/trace/blktrace.c:1264:32: sparse: got restricted __be64 const [usertype] sector_from kernel/trace/blktrace.c:1266:24: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __be32 [usertype] device_from @@ got unsigned int @@ kernel/trace/blktrace.c:1266:24: sparse: expected restricted __be32 [usertype] device_from kernel/trace/blktrace.c:1266:24: sparse: got unsigned int kernel/trace/blktrace.c:1267:24: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __be32 [usertype] device_to @@ got unsigned int @@ kernel/trace/blktrace.c:1267:24: sparse: expected restricted __be32 [usertype] device_to kernel/trace/blktrace.c:1267:24: sparse: got unsigned int kernel/trace/blktrace.c:1268:26: sparse: sparse: cast to restricted __be64 kernel/trace/blktrace.c:1268:26: sparse: sparse: cast to restricted __be64 kernel/trace/blktrace.c:1268:26: sparse: sparse: cast to restricted __be64 kernel/trace/blktrace.c:1268:26: sparse: sparse: cast to restricted __be64 kernel/trace/blktrace.c:1268:26: sparse: sparse: cast to restricted __be64 kernel/trace/blktrace.c:1268:26: sparse: sparse: cast to restricted __be64 kernel/trace/blktrace.c:1268:26: sparse: sparse: cast to restricted __be64 kernel/trace/blktrace.c:1268:26: sparse: sparse: cast to restricted __be64 kernel/trace/blktrace.c:1268:26: sparse: sparse: cast to restricted __be64 kernel/trace/blktrace.c:1268:26: sparse: sparse: cast to restricted __be64 kernel/trace/blktrace.c:1268:24: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __be64 [usertype] sector_from @@ got unsigned long long @@ kernel/trace/blktrace.c:1268:24: sparse: expected restricted __be64 [usertype] sector_from kernel/trace/blktrace.c:1268:24: sparse: got unsigned long long kernel/trace/blktrace.c:1415:26: sparse: sparse: restricted __be32 degrades to integer kernel/trace/blktrace.c:1415:48: sparse: sparse: restricted __be32 degrades to integer kernel/trace/blktrace.c:1416:27: sparse: sparse: cast from restricted __be64 kernel/trace/blktrace.c:1640:12: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct blk_trace *bt @@ got struct blk_trace [noderef] <asn:4> *[assigned] old_val @@ kernel/trace/blktrace.c:1640:12: sparse: expected struct blk_trace *bt kernel/trace/blktrace.c:1640:12: sparse: got struct blk_trace [noderef] <asn:4> *[assigned] old_val
vim +347 kernel/trace/blktrace.c
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 342 1f2cac107c591c kernel/trace/blktrace.c Jens Axboe 2017-11-05 343 static int __blk_trace_remove(struct request_queue *q) 2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 344 { 2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 345 struct blk_trace *bt; 2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 346 2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 @347 bt = xchg(&q->blk_trace, NULL); 2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 348 if (!bt) 2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 349 return -EINVAL; 2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 350 5554720482a631 kernel/trace/blktrace.c Li Zefan 2009-03-25 351 if (bt->trace_state != Blktrace_running) 2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 352 blk_trace_cleanup(bt); 2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 353 2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 354 return 0; 2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 355 } 1f2cac107c591c kernel/trace/blktrace.c Jens Axboe 2017-11-05 356
:::::: The code at line 347 was first introduced by commit :::::: 2056a782f8e7e65fd4bfd027506b4ce1c5e9ccd4 [PATCH] Block queue IO tracing support (blktrace) as of 2006-03-23
:::::: TO: Jens Axboe <axboe@suse.de> :::::: CC: Jens Axboe <axboe@suse.de>
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