[dm-devel] [dm:dm-5.8 50/54] drivers/md/dm-zoned-metadata.c:2468:6: warning: no previous prototype for 'dmz_print_dev'
kbuild test robot
lkp at intel.com
Tue May 19 04:23:13 UTC 2020
tree: https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git dm-5.8
head: 44eaf01834bc7414ab5298d097ed4e142a714420
commit: 4813c868bef0182b7ca7662f967b1c4bfdff1c1e [50/54] dm zoned: add metadata logging functions
config: parisc-randconfig-r024-20200519 (attached as .config)
compiler: hppa-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
git checkout 4813c868bef0182b7ca7662f967b1c4bfdff1c1e
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=parisc
If you fix the issue, kindly add following tag as appropriate
Reported-by: kbuild test robot <lkp at intel.com>
All warnings (new ones prefixed by >>, old ones prefixed by <<):
In file included from include/linux/mm.h:94,
from include/linux/bvec.h:13,
from include/linux/blk_types.h:10,
from include/linux/genhd.h:19,
from include/linux/blkdev.h:11,
from drivers/md/dm-zoned.h:12,
from drivers/md/dm-zoned-metadata.c:8:
include/asm-generic/pgtable.h: In function 'pte_clear_not_present_full':
arch/parisc/include/asm/pgtable.h:96:9: warning: variable 'old_pte' set but not used [-Wunused-but-set-variable]
96 | pte_t old_pte; | ^~~~~~~
arch/parisc/include/asm/pgtable.h:322:34: note: in expansion of macro 'set_pte_at'
322 | #define pte_clear(mm, addr, xp) set_pte_at(mm, addr, xp, __pte(0))
| ^~~~~~~~~~
include/asm-generic/pgtable.h:201:2: note: in expansion of macro 'pte_clear'
201 | pte_clear(mm, address, ptep);
| ^~~~~~~~~
include/asm-generic/pgtable.h: In function '__ptep_modify_prot_commit':
arch/parisc/include/asm/pgtable.h:96:9: warning: variable 'old_pte' set but not used [-Wunused-but-set-variable]
96 | pte_t old_pte; | ^~~~~~~
include/asm-generic/pgtable.h:640:2: note: in expansion of macro 'set_pte_at'
640 | set_pte_at(vma->vm_mm, addr, ptep, pte);
| ^~~~~~~~~~
drivers/md/dm-zoned-metadata.c: At top level:
>> drivers/md/dm-zoned-metadata.c:2468:6: warning: no previous prototype for 'dmz_print_dev' [-Wmissing-prototypes]
2468 | void dmz_print_dev(struct dmz_metadata *zmd, int num)
| ^~~~~~~~~~~~~
vim +/dmz_print_dev +2468 drivers/md/dm-zoned-metadata.c
2467
> 2468 void dmz_print_dev(struct dmz_metadata *zmd, int num)
2469 {
2470 struct dmz_dev *dev = &zmd->dev[num];
2471
2472 dmz_dev_info(dev, "Host-%s zoned block device",
2473 bdev_zoned_model(dev->bdev) == BLK_ZONED_HA ?
2474 "aware" : "managed");
2475 dmz_dev_info(dev, " %llu 512-byte logical sectors",
2476 (u64)dev->capacity);
2477 dmz_dev_info(dev, " %u zones of %llu 512-byte logical sectors",
2478 dev->nr_zones, (u64)zmd->zone_nr_sectors);
2479 }
2480 /*
2481 * Initialize the zoned metadata.
2482 */
2483 int dmz_ctr_metadata(struct dmz_dev *dev, struct dmz_metadata **metadata,
2484 const char *devname)
2485 {
2486 struct dmz_metadata *zmd;
2487 unsigned int i;
2488 struct dm_zone *zone;
2489 int ret;
2490
2491 zmd = kzalloc(sizeof(struct dmz_metadata), GFP_KERNEL);
2492 if (!zmd)
2493 return -ENOMEM;
2494
2495 strcpy(zmd->devname, devname);
2496 zmd->dev = dev;
2497 zmd->mblk_rbtree = RB_ROOT;
2498 init_rwsem(&zmd->mblk_sem);
2499 mutex_init(&zmd->mblk_flush_lock);
2500 spin_lock_init(&zmd->mblk_lock);
2501 INIT_LIST_HEAD(&zmd->mblk_lru_list);
2502 INIT_LIST_HEAD(&zmd->mblk_dirty_list);
2503
2504 mutex_init(&zmd->map_lock);
2505 atomic_set(&zmd->unmap_nr_rnd, 0);
2506 INIT_LIST_HEAD(&zmd->unmap_rnd_list);
2507 INIT_LIST_HEAD(&zmd->map_rnd_list);
2508
2509 atomic_set(&zmd->unmap_nr_seq, 0);
2510 INIT_LIST_HEAD(&zmd->unmap_seq_list);
2511 INIT_LIST_HEAD(&zmd->map_seq_list);
2512
2513 atomic_set(&zmd->nr_reserved_seq_zones, 0);
2514 INIT_LIST_HEAD(&zmd->reserved_seq_zones_list);
2515
2516 init_waitqueue_head(&zmd->free_wq);
2517
2518 /* Initialize zone descriptors */
2519 ret = dmz_init_zones(zmd);
2520 if (ret)
2521 goto err;
2522
2523 /* Get super block */
2524 ret = dmz_load_sb(zmd);
2525 if (ret)
2526 goto err;
2527
2528 /* Set metadata zones starting from sb_zone */
2529 for (i = 0; i < zmd->nr_meta_zones << 1; i++) {
2530 zone = dmz_get(zmd, zmd->sb[0].zone->id + i);
2531 if (!dmz_is_rnd(zone))
2532 goto err;
2533 set_bit(DMZ_META, &zone->flags);
2534 }
2535
2536 /* Load mapping table */
2537 ret = dmz_load_mapping(zmd);
2538 if (ret)
2539 goto err;
2540
2541 /*
2542 * Cache size boundaries: allow at least 2 super blocks, the chunk map
2543 * blocks and enough blocks to be able to cache the bitmap blocks of
2544 * up to 16 zones when idle (min_nr_mblks). Otherwise, if busy, allow
2545 * the cache to add 512 more metadata blocks.
2546 */
2547 zmd->min_nr_mblks = 2 + zmd->nr_map_blocks + zmd->zone_nr_bitmap_blocks * 16;
2548 zmd->max_nr_mblks = zmd->min_nr_mblks + 512;
2549 zmd->mblk_shrinker.count_objects = dmz_mblock_shrinker_count;
2550 zmd->mblk_shrinker.scan_objects = dmz_mblock_shrinker_scan;
2551 zmd->mblk_shrinker.seeks = DEFAULT_SEEKS;
2552
2553 /* Metadata cache shrinker */
2554 ret = register_shrinker(&zmd->mblk_shrinker);
2555 if (ret) {
2556 dmz_zmd_err(zmd, "Register metadata cache shrinker failed");
2557 goto err;
2558 }
2559
2560 dmz_zmd_info(zmd, "DM-Zoned metadata version %d", DMZ_META_VER);
2561 dmz_print_dev(zmd, 0);
2562
2563 dmz_zmd_info(zmd, " %u zones of %llu 512-byte logical sectors",
2564 zmd->nr_zones, (u64)zmd->zone_nr_sectors);
2565 dmz_zmd_info(zmd, " %u metadata zones",
2566 zmd->nr_meta_zones * 2);
2567 dmz_zmd_info(zmd, " %u data zones for %u chunks",
2568 zmd->nr_data_zones, zmd->nr_chunks);
2569 dmz_zmd_info(zmd, " %u random zones (%u unmapped)",
2570 zmd->nr_rnd, atomic_read(&zmd->unmap_nr_rnd));
2571 dmz_zmd_info(zmd, " %u sequential zones (%u unmapped)",
2572 zmd->nr_seq, atomic_read(&zmd->unmap_nr_seq));
2573 dmz_zmd_info(zmd, " %u reserved sequential data zones",
2574 zmd->nr_reserved_seq);
2575 dmz_zmd_debug(zmd, "Format:");
2576 dmz_zmd_debug(zmd, "%u metadata blocks per set (%u max cache)",
2577 zmd->nr_meta_blocks, zmd->max_nr_mblks);
2578 dmz_zmd_debug(zmd, " %u data zone mapping blocks",
2579 zmd->nr_map_blocks);
2580 dmz_zmd_debug(zmd, " %u bitmap blocks",
2581 zmd->nr_bitmap_blocks);
2582
2583 *metadata = zmd;
2584
2585 return 0;
2586 err:
2587 dmz_cleanup_metadata(zmd);
2588 kfree(zmd);
2589 *metadata = NULL;
2590
2591 return ret;
2592 }
2593
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
-------------- next part --------------
A non-text attachment was scrubbed...
Name: .config.gz
Type: application/gzip
Size: 29114 bytes
Desc: not available
URL: <http://listman.redhat.com/archives/dm-devel/attachments/20200519/9c29572f/attachment.gz>
More information about the dm-devel
mailing list