* [intel-linux-intel-lts:5.4/yocto 245/1142] kernel/trace/blktrace.c:548:13: sparse: sparse: cast removes address space '<asn:4>' of expression
@ 2021-06-11 16:14 kernel test robot
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From: kernel test robot @ 2021-06-11 16:14 UTC (permalink / raw)
To: kbuild-all
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tree: https://github.com/intel/linux-intel-lts.git 5.4/yocto
head: eeb611e5394c56d45c5cc8f7dc484c9f19e93143
commit: 51accd393a8fb80ae3223bb67abef816bc299cb5 [245/1142] riscv/atomic: Fix sign extension for RV64I
config: riscv-randconfig-s032-20210611 (attached as .config)
compiler: riscv32-linux-gcc (GCC) 9.3.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.3-341-g8af24329-dirty
# https://github.com/intel/linux-intel-lts/commit/51accd393a8fb80ae3223bb67abef816bc299cb5
git remote add intel-linux-intel-lts https://github.com/intel/linux-intel-lts.git
git fetch --no-tags intel-linux-intel-lts 5.4/yocto
git checkout 51accd393a8fb80ae3223bb67abef816bc299cb5
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' W=1 ARCH=riscv
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:348:12: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct blk_trace *bt @@ got struct blk_trace [noderef] <asn:4> * @@
kernel/trace/blktrace.c:348:12: sparse: expected struct blk_trace *bt
kernel/trace/blktrace.c:348:12: sparse: got struct blk_trace [noderef] <asn:4> *
kernel/trace/blktrace.c:548:13: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct blk_trace [noderef] <asn:4> *_n_ @@ got struct blk_trace *[assigned] bt @@
kernel/trace/blktrace.c:548:13: sparse: expected struct blk_trace [noderef] <asn:4> *_n_
kernel/trace/blktrace.c:548:13: sparse: got struct blk_trace *[assigned] bt
>> kernel/trace/blktrace.c:548:13: sparse: sparse: cast removes address space '<asn:4>' of expression
kernel/trace/blktrace.c:1624:12: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct blk_trace *bt @@ got struct blk_trace [noderef] <asn:4> * @@
kernel/trace/blktrace.c:1624:12: sparse: expected struct blk_trace *bt
kernel/trace/blktrace.c:1624:12: sparse: got struct blk_trace [noderef] <asn:4> *
kernel/trace/blktrace.c:1657:13: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct blk_trace [noderef] <asn:4> *_n_ @@ got struct blk_trace *[assigned] bt @@
kernel/trace/blktrace.c:1657:13: sparse: expected struct blk_trace [noderef] <asn:4> *_n_
kernel/trace/blktrace.c:1657:13: sparse: got struct blk_trace *[assigned] bt
kernel/trace/blktrace.c:1657:13: sparse: sparse: cast removes address space '<asn:4>' of expression
vim +548 kernel/trace/blktrace.c
9908c30997b8a7 kernel/trace/blktrace.c Li Zefan 2009-04-14 471
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 472 /*
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 473 * Setup everything required to start tracing
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 474 */
a428d314ebcf65 kernel/trace/blktrace.c Omar Sandoval 2017-01-31 475 static int do_blk_trace_setup(struct request_queue *q, char *name, dev_t dev,
d0deef5b14af7d kernel/trace/blktrace.c Shawn Du 2009-04-14 476 struct block_device *bdev,
171044d449611c block/blktrace.c Arnd Bergmann 2007-10-09 477 struct blk_user_trace_setup *buts)
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 478 {
cdea01b2bf98af kernel/trace/blktrace.c Davidlohr Bueso 2015-10-30 479 struct blk_trace *bt = NULL;
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 480 struct dentry *dir = NULL;
ff14417c0a00c9 kernel/trace/blktrace.c Rasmus Villemoes 2015-06-25 481 int ret;
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 482
171044d449611c block/blktrace.c Arnd Bergmann 2007-10-09 483 if (!buts->buf_size || !buts->buf_nr)
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 484 return -EINVAL;
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 485
e1a413245a5646 kernel/trace/blktrace.c Liu Bo 2018-06-29 486 if (!blk_debugfs_root)
e1a413245a5646 kernel/trace/blktrace.c Liu Bo 2018-06-29 487 return -ENOENT;
e1a413245a5646 kernel/trace/blktrace.c Liu Bo 2018-06-29 488
0497b345e7d067 block/blktrace.c Jens Axboe 2008-10-01 489 strncpy(buts->name, name, BLKTRACE_BDEV_SIZE);
0497b345e7d067 block/blktrace.c Jens Axboe 2008-10-01 490 buts->name[BLKTRACE_BDEV_SIZE - 1] = '\0';
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 491
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 492 /*
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 493 * some device names have larger paths - convert the slashes
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 494 * to underscores for this to work as expected
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 495 */
ff14417c0a00c9 kernel/trace/blktrace.c Rasmus Villemoes 2015-06-25 496 strreplace(buts->name, '/', '_');
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 497
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 498 bt = kzalloc(sizeof(*bt), GFP_KERNEL);
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 499 if (!bt)
ad5dd5493a55e4 kernel/trace/blktrace.c Li Zefan 2009-03-27 500 return -ENOMEM;
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 501
ad5dd5493a55e4 kernel/trace/blktrace.c Li Zefan 2009-03-27 502 ret = -ENOMEM;
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 503 bt->sequence = alloc_percpu(unsigned long);
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 504 if (!bt->sequence)
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 505 goto err;
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 506
313e458f81ec38 block/blktrace.c Rusty Russell 2009-02-20 507 bt->msg_data = __alloc_percpu(BLK_TN_MAX_MSG, __alignof__(char));
64565911cdb57c block/blktrace.c Jens Axboe 2008-05-28 508 if (!bt->msg_data)
64565911cdb57c block/blktrace.c Jens Axboe 2008-05-28 509 goto err;
64565911cdb57c block/blktrace.c Jens Axboe 2008-05-28 510
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 511 ret = -ENOENT;
f48fc4d32e24c0 block/blktrace.c Jens Axboe 2009-01-05 512
6ac93117ab009d kernel/trace/blktrace.c Omar Sandoval 2017-01-31 513 dir = debugfs_lookup(buts->name, blk_debugfs_root);
6ac93117ab009d kernel/trace/blktrace.c Omar Sandoval 2017-01-31 514 if (!dir)
6ac93117ab009d kernel/trace/blktrace.c Omar Sandoval 2017-01-31 515 bt->dir = dir = debugfs_create_dir(buts->name, blk_debugfs_root);
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 516
6da127ad0918f9 block/blktrace.c Christof Schmitt 2008-01-11 517 bt->dev = dev;
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 518 atomic_set(&bt->dropped, 0);
a404d5576bbe58 kernel/trace/blktrace.c Jan Kara 2013-09-17 519 INIT_LIST_HEAD(&bt->running_list);
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 520
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 521 ret = -EIO;
939b366977d29b block/blktrace.c Arnaldo Carvalho de Melo 2009-02-03 522 bt->dropped_file = debugfs_create_file("dropped", 0444, dir, bt,
939b366977d29b block/blktrace.c Arnaldo Carvalho de Melo 2009-02-03 523 &blk_dropped_fops);
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 524
02c62304e6af60 block/blktrace.c Alan D. Brunelle 2008-06-11 525 bt->msg_file = debugfs_create_file("msg", 0222, dir, bt, &blk_msg_fops);
02c62304e6af60 block/blktrace.c Alan D. Brunelle 2008-06-11 526
171044d449611c block/blktrace.c Arnd Bergmann 2007-10-09 527 bt->rchan = relay_open("trace", dir, buts->buf_size,
171044d449611c block/blktrace.c Arnd Bergmann 2007-10-09 528 buts->buf_nr, &blk_relay_callbacks, bt);
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 529 if (!bt->rchan)
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 530 goto err;
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 531
171044d449611c block/blktrace.c Arnd Bergmann 2007-10-09 532 bt->act_mask = buts->act_mask;
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 533 if (!bt->act_mask)
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 534 bt->act_mask = (u16) -1;
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 535
9908c30997b8a7 kernel/trace/blktrace.c Li Zefan 2009-04-14 536 blk_trace_setup_lba(bt, bdev);
d0deef5b14af7d kernel/trace/blktrace.c Shawn Du 2009-04-14 537
d0deef5b14af7d kernel/trace/blktrace.c Shawn Du 2009-04-14 538 /* overwrite with user settings */
d0deef5b14af7d kernel/trace/blktrace.c Shawn Du 2009-04-14 539 if (buts->start_lba)
171044d449611c block/blktrace.c Arnd Bergmann 2007-10-09 540 bt->start_lba = buts->start_lba;
d0deef5b14af7d kernel/trace/blktrace.c Shawn Du 2009-04-14 541 if (buts->end_lba)
171044d449611c block/blktrace.c Arnd Bergmann 2007-10-09 542 bt->end_lba = buts->end_lba;
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 543
171044d449611c block/blktrace.c Arnd Bergmann 2007-10-09 544 bt->pid = buts->pid;
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 545 bt->trace_state = Blktrace_setup;
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 546
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 547 ret = -EBUSY;
cdea01b2bf98af kernel/trace/blktrace.c Davidlohr Bueso 2015-10-30 @548 if (cmpxchg(&q->blk_trace, NULL, bt))
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 549 goto err;
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 550
a6da0024ffc19e kernel/trace/blktrace.c Jens Axboe 2017-11-05 551 get_probe_ref();
cbe28296eb1ac4 kernel/trace/blktrace.c Li Zefan 2009-03-20 552
6ac93117ab009d kernel/trace/blktrace.c Omar Sandoval 2017-01-31 553 ret = 0;
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 554 err:
6ac93117ab009d kernel/trace/blktrace.c Omar Sandoval 2017-01-31 555 if (dir && !bt->dir)
6ac93117ab009d kernel/trace/blktrace.c Omar Sandoval 2017-01-31 556 dput(dir);
6ac93117ab009d kernel/trace/blktrace.c Omar Sandoval 2017-01-31 557 if (ret)
ad5dd5493a55e4 kernel/trace/blktrace.c Li Zefan 2009-03-27 558 blk_trace_free(bt);
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 559 return ret;
2056a782f8e7e6 block/blktrace.c Jens Axboe 2006-03-23 560 }
171044d449611c block/blktrace.c Arnd Bergmann 2007-10-09 561
:::::: The code at line 548 was first introduced by commit
:::::: cdea01b2bf98affb7e9c44530108a4a28535eee8 blktrace: re-write setting q->blk_trace
:::::: TO: Davidlohr Bueso <dave@stgolabs.ne>
:::::: CC: Jens Axboe <axboe@fb.com>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
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2021-06-11 16:14 [intel-linux-intel-lts:5.4/yocto 245/1142] kernel/trace/blktrace.c:548:13: sparse: sparse: cast removes address space '<asn:4>' of expression kernel test robot
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