From 40acb3fe1e79a3ca441ef38325a357e02fc96a6d Mon Sep 17 00:00:00 2001
From: Ilya Leoshkevich <iii@linux.ibm.com>
Date: Thu, 13 Aug 2020 11:50:46 +0200
Subject: [PATCH] Fix DFLTCC ignoring flush modes when avail_in == 0

---
 arch/s390/dfltcc_deflate.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/s390/dfltcc_deflate.c b/arch/s390/dfltcc_deflate.c
index a088a731..4692789f 100644
--- a/arch/s390/dfltcc_deflate.c
+++ b/arch/s390/dfltcc_deflate.c
@@ -135,7 +135,8 @@ again:
         /* Clear history. */
         if (flush == Z_FULL_FLUSH)
             param->hl = 0;
-        *result = need_more;
+        /* Trigger block post-processing if necessary. */
+        *result = no_flush ? need_more : block_done;
         return 1;
     }
 
-- 
2.47.2