[kbuild-all] [bcache:for-next 2/6] drivers/md/bcache/debug.c:53:19: error: 'c' undeclared

tree: https://git.kernel.org/pub/scm/linux/kernel/git/colyli/linux-bcache.git for-next head: b85a96a78001249054c14fa62c04497075c8f091 commit: 4bc76ab8cf614f3d480ae08671b53223ca8ad626 [2/6] bcache: remove PTR_CACHE config: x86_64-randconfig-m001-20210411 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/colyli/linux-bcache.git/c... git remote add bcache https://git.kernel.org/pub/scm/linux/kernel/git/colyli/linux-bcache.git git fetch --no-tags bcache for-next git checkout 4bc76ab8cf614f3d480ae08671b53223ca8ad626 # 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 >>): In file included from drivers/md/bcache/bcache.h:182, from drivers/md/bcache/debug.c:9: drivers/md/bcache/debug.c: In function 'bch_btree_verify': 53 | bio_set_dev(bio, c->cache->bdev); | ^ include/linux/bio.h:502:25: note: in definition of macro 'bio_set_dev' 502 | if ((bio)->bi_bdev != (bdev)) \ | ^~~~ drivers/md/bcache/debug.c:53:19: note: each undeclared identifier is reported only once for each function it appears in 53 | bio_set_dev(bio, c->cache->bdev); | ^ include/linux/bio.h:502:25: note: in definition of macro 'bio_set_dev' 502 | if ((bio)->bi_bdev != (bdev)) \ | ^~~~ vim +/c +53 drivers/md/bcache/debug.c 10 #include "btree.h" 11 #include "debug.h" 12 #include "extents.h" 13 14 #include <linux/console.h> 15 #include <linux/debugfs.h> 16 #include <linux/module.h> 17 #include <linux/random.h> 18 #include <linux/seq_file.h> 19 20 struct dentry *bcache_debug; 21 22 #ifdef CONFIG_BCACHE_DEBUG 23 24 #define for_each_written_bset(b, start, i) \ 25 for (i = (start); \ 26 (void *) i < (void *) (start) + (KEY_SIZE(&b->key) << 9) &&\ 27 i->seq == (start)->seq; \ 28 i = (void *) i + set_blocks(i, block_bytes(b->c->cache)) * \ 29 block_bytes(b->c->cache)) 30 31 void bch_btree_verify(struct btree *b) 32 { 33 struct btree *v = b->c->verify_data; 34 struct bset *ondisk, *sorted, *inmemory; 35 struct bio *bio; 36 37 if (!b->c->verify || !b->c->verify_ondisk) 38 return; 39 40 down(&b->io_mutex); 41 mutex_lock(&b->c->verify_lock); 42 43 ondisk = b->c->verify_ondisk; 44 sorted = b->c->verify_data->keys.set->data; 45 inmemory = b->keys.set->data; 46 47 bkey_copy(&v->key, &b->key); 48 v->written = 0; 49 v->level = b->level; 50 v->keys.ops = b->keys.ops; 51 52 bio = bch_bbio_alloc(b->c); 54 bio->bi_iter.bi_sector = PTR_OFFSET(&b->key, 0); 55 bio->bi_iter.bi_size = KEY_SIZE(&v->key) << 9; 56 bio->bi_opf = REQ_OP_READ | REQ_META; 57 bch_bio_map(bio, sorted); 58 59 submit_bio_wait(bio); 60 bch_bbio_free(bio, b->c); 61 62 memcpy(ondisk, sorted, KEY_SIZE(&v->key) << 9); 63 64 bch_btree_node_read_done(v); 65 sorted = v->keys.set->data; 66 67 if (inmemory->keys != sorted->keys || 68 memcmp(inmemory->start, 69 sorted->start, 70 (void *) bset_bkey_last(inmemory) - 71 (void *) inmemory->start)) { 72 struct bset *i; 73 unsigned int j; 74 75 console_lock(); 76 77 pr_err("*** in memory:\n"); 78 bch_dump_bset(&b->keys, inmemory, 0); 79 80 pr_err("*** read back in:\n"); 81 bch_dump_bset(&v->keys, sorted, 0); 82 83 for_each_written_bset(b, ondisk, i) { 84 unsigned int block = ((void *) i - (void *) ondisk) / 85 block_bytes(b->c->cache); 86 87 pr_err("*** on disk block %u:\n", block); 88 bch_dump_bset(&b->keys, i, block); 89 } 90 91 pr_err("*** block %zu not written\n", 92 ((void *) i - (void *) ondisk) / block_bytes(b->c->cache)); 93 94 for (j = 0; j < inmemory->keys; j++) 95 if (inmemory->d[j] != sorted->d[j]) 96 break; 97 98 pr_err("b->written %u\n", b->written); 99 100 console_unlock(); 101 panic("verify failed at %u\n", j); 102 } 103 104 mutex_unlock(&b->c->verify_lock); 105 up(&b->io_mutex); 106 } 107 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org