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Message-ID: <202504250530.hiUs8Un2-lkp@intel.com>
Date: Fri, 25 Apr 2025 05:57:55 +0800
From: kernel test robot <lkp@...el.com>
To: Dan Williams <dan.j.williams@...el.com>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
Andrew Morton <akpm@...ux-foundation.org>,
Linux Memory Management List <linux-mm@...ck.org>,
Gerald Schaefer <gerald.schaefer@...ux.ibm.com>
Subject: drivers/s390/block/dcssblk.c:417: undefined reference to `kill_dax'
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: e72e9e6933071fbbb3076811d3a0cc20e8720a5b
commit: 653d7825c149932f254e0cd22153ccc945e7e545 dcssblk: mark DAX broken, remove FS_DAX_LIMITED support
date: 5 weeks ago
config: s390-randconfig-r054-20250424 (https://download.01.org/0day-ci/archive/20250425/202504250530.hiUs8Un2-lkp@intel.com/config)
compiler: s390-linux-gcc (GCC) 7.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250425/202504250530.hiUs8Un2-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202504250530.hiUs8Un2-lkp@intel.com/
All errors (new ones prefixed by >>):
s390-linux-ld: drivers/s390/block/dcssblk.o: in function `dcssblk_shared_store':
>> drivers/s390/block/dcssblk.c:417: undefined reference to `kill_dax'
>> s390-linux-ld: drivers/s390/block/dcssblk.c:418: undefined reference to `put_dax'
s390-linux-ld: drivers/s390/block/dcssblk.o: in function `dcssblk_remove_store':
drivers/s390/block/dcssblk.c:803: undefined reference to `kill_dax'
s390-linux-ld: drivers/s390/block/dcssblk.c:804: undefined reference to `put_dax'
s390-linux-ld: drivers/s390/block/dcssblk.o: in function `dcssblk_add_store':
drivers/s390/block/dcssblk.c:718: undefined reference to `kill_dax'
s390-linux-ld: drivers/s390/block/dcssblk.c:719: undefined reference to `put_dax'
vim +417 drivers/s390/block/dcssblk.c
^1da177e4c3f41 Linus Torvalds 2005-04-16 344
^1da177e4c3f41 Linus Torvalds 2005-04-16 345 static ssize_t
e404e274f62665 Yani Ioannou 2005-05-17 346 dcssblk_shared_store(struct device *dev, struct device_attribute *attr, const char *inbuf, size_t count)
^1da177e4c3f41 Linus Torvalds 2005-04-16 347 {
^1da177e4c3f41 Linus Torvalds 2005-04-16 348 struct dcssblk_dev_info *dev_info;
b2300b9efe1b81 Hongjie Yang 2008-10-10 349 struct segment_info *entry, *temp;
^1da177e4c3f41 Linus Torvalds 2005-04-16 350 int rc;
^1da177e4c3f41 Linus Torvalds 2005-04-16 351
ded77fb4dfcd6f Hongjie Yang 2008-07-14 352 if ((count > 1) && (inbuf[1] != '\n') && (inbuf[1] != '\0'))
^1da177e4c3f41 Linus Torvalds 2005-04-16 353 return -EINVAL;
^1da177e4c3f41 Linus Torvalds 2005-04-16 354 down_write(&dcssblk_devices_sem);
^1da177e4c3f41 Linus Torvalds 2005-04-16 355 dev_info = container_of(dev, struct dcssblk_dev_info, dev);
^1da177e4c3f41 Linus Torvalds 2005-04-16 356 if (atomic_read(&dev_info->use_count)) {
^1da177e4c3f41 Linus Torvalds 2005-04-16 357 rc = -EBUSY;
^1da177e4c3f41 Linus Torvalds 2005-04-16 358 goto out;
^1da177e4c3f41 Linus Torvalds 2005-04-16 359 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 360 if (inbuf[0] == '1') {
b2300b9efe1b81 Hongjie Yang 2008-10-10 361 /* reload segments in shared mode */
b2300b9efe1b81 Hongjie Yang 2008-10-10 362 list_for_each_entry(entry, &dev_info->seg_list, lh) {
b2300b9efe1b81 Hongjie Yang 2008-10-10 363 rc = segment_modify_shared(entry->segment_name,
^1da177e4c3f41 Linus Torvalds 2005-04-16 364 SEGMENT_SHARED);
^1da177e4c3f41 Linus Torvalds 2005-04-16 365 if (rc < 0) {
^1da177e4c3f41 Linus Torvalds 2005-04-16 366 BUG_ON(rc == -EINVAL);
444f0e5489e7ac Gerald Schaefer 2007-02-05 367 if (rc != -EAGAIN)
^1da177e4c3f41 Linus Torvalds 2005-04-16 368 goto removeseg;
b2300b9efe1b81 Hongjie Yang 2008-10-10 369 }
b2300b9efe1b81 Hongjie Yang 2008-10-10 370 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 371 dev_info->is_shared = 1;
^1da177e4c3f41 Linus Torvalds 2005-04-16 372 switch (dev_info->segment_type) {
^1da177e4c3f41 Linus Torvalds 2005-04-16 373 case SEG_TYPE_SR:
^1da177e4c3f41 Linus Torvalds 2005-04-16 374 case SEG_TYPE_ER:
^1da177e4c3f41 Linus Torvalds 2005-04-16 375 case SEG_TYPE_SC:
^1da177e4c3f41 Linus Torvalds 2005-04-16 376 set_disk_ro(dev_info->gd, 1);
^1da177e4c3f41 Linus Torvalds 2005-04-16 377 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 378 } else if (inbuf[0] == '0') {
b2300b9efe1b81 Hongjie Yang 2008-10-10 379 /* reload segments in exclusive mode */
^1da177e4c3f41 Linus Torvalds 2005-04-16 380 if (dev_info->segment_type == SEG_TYPE_SC) {
93098bf0157876 Hongjie Yang 2008-12-25 381 pr_err("DCSS %s is of type SC and cannot be "
93098bf0157876 Hongjie Yang 2008-12-25 382 "loaded as exclusive-writable\n",
93098bf0157876 Hongjie Yang 2008-12-25 383 dev_info->segment_name);
^1da177e4c3f41 Linus Torvalds 2005-04-16 384 rc = -EINVAL;
^1da177e4c3f41 Linus Torvalds 2005-04-16 385 goto out;
^1da177e4c3f41 Linus Torvalds 2005-04-16 386 }
b2300b9efe1b81 Hongjie Yang 2008-10-10 387 list_for_each_entry(entry, &dev_info->seg_list, lh) {
b2300b9efe1b81 Hongjie Yang 2008-10-10 388 rc = segment_modify_shared(entry->segment_name,
^1da177e4c3f41 Linus Torvalds 2005-04-16 389 SEGMENT_EXCLUSIVE);
^1da177e4c3f41 Linus Torvalds 2005-04-16 390 if (rc < 0) {
^1da177e4c3f41 Linus Torvalds 2005-04-16 391 BUG_ON(rc == -EINVAL);
444f0e5489e7ac Gerald Schaefer 2007-02-05 392 if (rc != -EAGAIN)
^1da177e4c3f41 Linus Torvalds 2005-04-16 393 goto removeseg;
b2300b9efe1b81 Hongjie Yang 2008-10-10 394 }
b2300b9efe1b81 Hongjie Yang 2008-10-10 395 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 396 dev_info->is_shared = 0;
^1da177e4c3f41 Linus Torvalds 2005-04-16 397 set_disk_ro(dev_info->gd, 0);
^1da177e4c3f41 Linus Torvalds 2005-04-16 398 } else {
^1da177e4c3f41 Linus Torvalds 2005-04-16 399 rc = -EINVAL;
^1da177e4c3f41 Linus Torvalds 2005-04-16 400 goto out;
^1da177e4c3f41 Linus Torvalds 2005-04-16 401 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 402 rc = count;
^1da177e4c3f41 Linus Torvalds 2005-04-16 403 goto out;
^1da177e4c3f41 Linus Torvalds 2005-04-16 404
^1da177e4c3f41 Linus Torvalds 2005-04-16 405 removeseg:
93098bf0157876 Hongjie Yang 2008-12-25 406 pr_err("DCSS device %s is removed after a failed access mode "
93098bf0157876 Hongjie Yang 2008-12-25 407 "change\n", dev_info->segment_name);
b2300b9efe1b81 Hongjie Yang 2008-10-10 408 temp = entry;
b2300b9efe1b81 Hongjie Yang 2008-10-10 409 list_for_each_entry(entry, &dev_info->seg_list, lh) {
b2300b9efe1b81 Hongjie Yang 2008-10-10 410 if (entry != temp)
b2300b9efe1b81 Hongjie Yang 2008-10-10 411 segment_unload(entry->segment_name);
b2300b9efe1b81 Hongjie Yang 2008-10-10 412 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 413 list_del(&dev_info->lh);
789dd8cb1eb150 Gerald Schaefer 2023-08-22 414 up_write(&dcssblk_devices_sem);
^1da177e4c3f41 Linus Torvalds 2005-04-16 415
c8f40a0bccefd6 Gerald Schaefer 2023-08-10 416 dax_remove_host(dev_info->gd);
7a2765f6e82063 Dan Williams 2017-01-26 @417 kill_dax(dev_info->dax_dev);
7a2765f6e82063 Dan Williams 2017-01-26 @418 put_dax(dev_info->dax_dev);
^1da177e4c3f41 Linus Torvalds 2005-04-16 419 del_gendisk(dev_info->gd);
8b9ab62662048a Christoph Hellwig 2022-06-19 420 put_disk(dev_info->gd);
0b60f9ead5d481 Tejun Heo 2014-02-03 421
0b60f9ead5d481 Tejun Heo 2014-02-03 422 if (device_remove_file_self(dev, attr)) {
0b60f9ead5d481 Tejun Heo 2014-02-03 423 device_unregister(dev);
0b60f9ead5d481 Tejun Heo 2014-02-03 424 put_device(dev);
0b60f9ead5d481 Tejun Heo 2014-02-03 425 }
0b60f9ead5d481 Tejun Heo 2014-02-03 426 return rc;
^1da177e4c3f41 Linus Torvalds 2005-04-16 427 out:
^1da177e4c3f41 Linus Torvalds 2005-04-16 428 up_write(&dcssblk_devices_sem);
^1da177e4c3f41 Linus Torvalds 2005-04-16 429 return rc;
^1da177e4c3f41 Linus Torvalds 2005-04-16 430 }
521b3d790c16fa Sebastian Ott 2012-10-01 431 static DEVICE_ATTR(shared, S_IWUSR | S_IRUSR, dcssblk_shared_show,
521b3d790c16fa Sebastian Ott 2012-10-01 432 dcssblk_shared_store);
^1da177e4c3f41 Linus Torvalds 2005-04-16 433
:::::: The code at line 417 was first introduced by commit
:::::: 7a2765f6e82063f348ebce78c28eceff741689d4 dcssblk: add dax_operations support
:::::: TO: Dan Williams <dan.j.williams@...el.com>
:::::: CC: Dan Williams <dan.j.williams@...el.com>
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