[PATCH 3/3] erofs-utils: allow blkaddr == EROFS_NULL_ADDR for zpacking in write_compacted_indexes()

[Noboru Asai]

With ztailpacking, the value of blkaddr corresponding to the ztailpacking block
in the extent list is EROFS_NULL_ADDR(-1), allow this value in write_compacted_indexes()
function.

Signed-off-by: Noboru Asai <asai at sijam.com>
---
 lib/compress.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/compress.c b/lib/compress.c
index d745e5b..5b70490 100644
--- a/lib/compress.c
+++ b/lib/compress.c
@@ -790,7 +790,8 @@ static void *write_compacted_indexes(u8 *out,
 			*dummy_head = true;
 			update_blkaddr = false;
 
-			if (cv[i].u.blkaddr != blkaddr) {
+			if (cv[i].u.blkaddr != EROFS_NULL_ADDR &&
+			    cv[i].u.blkaddr != blkaddr) {
 				if (i + 1 != vcnt)
 					DBG_BUGON(!final);
 				DBG_BUGON(cv[i].u.blkaddr);
-- 
2.44.0