dm-integrity: stop using bio_devname

Use the %pg format specifier to save on stack consuption and code size.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Reviewed-by: NChaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: NJohannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/20220304180105.409765-6-hch@lst.deSigned-off-by: NJens Axboe <axboe@kernel.dk>

drivers/md/dm-integrity.c

@@ -1788,12 +1788,11 @@ static void integrity_metadata(struct work_struct *w)
 						checksums_ptr - checksums, dio->op == REQ_OP_READ ? TAG_CMP : TAG_WRITE);
 			if (unlikely(r)) {
 				if (r > 0) {
-					char b[BDEVNAME_SIZE];
 					sector_t s;
 
 					s = sector - ((r + ic->tag_size - 1) / ic->tag_size);
-					DMERR_LIMIT("%s: Checksum failed at sector 0x%llx",
-						    bio_devname(bio, b), s);
+					DMERR_LIMIT("%pg: Checksum failed at sector 0x%llx",
+						    bio->bi_bdev, s);
 					r = -EILSEQ;
 					atomic64_inc(&ic->number_of_mismatches);
 					dm_audit_log_bio(DM_MSG_PREFIX, "integrity-checksum",