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-rw-r--r--drivers/block/null_blk.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/block/null_blk.h b/drivers/block/null_blk.h
index a235c45e22a7..93c2a3d403da 100644
--- a/drivers/block/null_blk.h
+++ b/drivers/block/null_blk.h
@@ -96,6 +96,8 @@ int null_zone_report(struct gendisk *disk, sector_t sector,
blk_status_t null_handle_zoned(struct nullb_cmd *cmd,
enum req_opf op, sector_t sector,
sector_t nr_sectors);
+size_t null_zone_valid_read_len(struct nullb *nullb,
+ sector_t sector, unsigned int len);
#else
static inline int null_zone_init(struct nullb_device *dev)
{
@@ -115,5 +117,11 @@ static inline blk_status_t null_handle_zoned(struct nullb_cmd *cmd,
{
return BLK_STS_NOTSUPP;
}
+static inline size_t null_zone_valid_read_len(struct nullb *nullb,
+ sector_t sector,
+ unsigned int len)
+{
+ return len;
+}
#endif /* CONFIG_BLK_DEV_ZONED */
#endif /* __NULL_BLK_H */