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-rw-r--r--block/blk-integrity.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/block/blk-integrity.c b/block/blk-integrity.c
index 5d339ae64d563..d69c5c79f98e7 100644
--- a/block/blk-integrity.c
+++ b/block/blk-integrity.c
@@ -384,6 +384,17 @@ static struct kobj_type integrity_ktype = {
.sysfs_ops = &integrity_ops,
};
+static int blk_integrity_nop_fn(struct blk_integrity_iter *iter)
+{
+ return 0;
+}
+
+static struct blk_integrity_profile nop_profile = {
+ .name = "nop",
+ .generate_fn = blk_integrity_nop_fn,
+ .verify_fn = blk_integrity_nop_fn,
+};
+
/**
* blk_integrity_register - Register a gendisk as being integrity-capable
* @disk: struct gendisk pointer to make integrity-aware
@@ -402,7 +413,7 @@ void blk_integrity_register(struct gendisk *disk, struct blk_integrity *template
bi->flags = BLK_INTEGRITY_VERIFY | BLK_INTEGRITY_GENERATE |
template->flags;
bi->interval_exp = ilog2(queue_logical_block_size(disk->queue));
- bi->profile = template->profile;
+ bi->profile = template->profile ? template->profile : &nop_profile;
bi->tuple_size = template->tuple_size;
bi->tag_size = template->tag_size;