diff --git a/SOURCES/zlib-1.2.11-IBM-DFLTCC-compression-level-switching-issues.patch b/SOURCES/zlib-1.2.11-IBM-DFLTCC-compression-level-switching-issues.patch
index f347d42..c69d9bc 100644
--- a/SOURCES/zlib-1.2.11-IBM-DFLTCC-compression-level-switching-issues.patch
+++ b/SOURCES/zlib-1.2.11-IBM-DFLTCC-compression-level-switching-issues.patch
@@ -1,17 +1,26 @@
Subject: [PATCH] Fixed DFLTCC compression level switching issues
---
- configure | 2 +-
+ configure | 4 +--
contrib/s390/dfltcc.c | 52 ++++++++++++++++++++++++++++++-----
contrib/s390/dfltcc_deflate.h | 2 ++
deflate.c | 12 ++++----
test/infcover.c | 2 +-
- 5 files changed, 56 insertions(+), 14 deletions(-)
+ 5 files changed, 57 insertions(+), 15 deletions(-)
diff --git a/configure b/configure
-index bfe4386..6fa0474 100755
+index bfe4386..70ed86b 100755
--- a/configure
+++ b/configure
+@@ -139,7 +139,7 @@ case "$1" in
+ -w* | --warn) warn=1; shift ;;
+ -d* | --debug) debug=1; shift ;;
+ --dfltcc)
+- CFLAGS="$CFLAGS -DDFLTCC"
++ CFLAGS="$CFLAGS -DDFLTCC -DDFLTCC_LEVEL_MASK=0x7e"
+ OBJC="$OBJC dfltcc.o"
+ PIC_OBJC="$PIC_OBJC dfltcc.lo"
+ shift
@@ -838,7 +838,7 @@ cat > $test.c << EOF
#include <sys/sdt.h>
int main() { return 0; }
diff --git a/SPECS/zlib.spec b/SPECS/zlib.spec
index 430856e..d04aeea 100644
--- a/SPECS/zlib.spec
+++ b/SPECS/zlib.spec
@@ -3,7 +3,7 @@
Name: zlib
Version: 1.2.11
-Release: 16.2%{?dist}
+Release: 17%{?dist}
Summary: The compression and decompression library
# /contrib/dotzlib/ have Boost license
License: zlib and Boost
@@ -27,6 +27,7 @@ Patch6: zlib-1.2.11-IBM-Z-hw-accelrated-deflate-fix.patch
# permit a deflateParams() parameter change
Patch7: zlib-1.2.11-permit-deflateParams-change.patch
# fixed DFLTCC compression level switching issues
+# enabled HW compression for compression levels 1 through 6
Patch8: zlib-1.2.11-IBM-DFLTCC-compression-level-switching-issues.patch
# fixed inflateSyncPoint() bad return value on z15
Patch9: zlib-1.2.11-inflateSyncPoint-return-value-fix.patch
@@ -171,11 +172,10 @@ find $RPM_BUILD_ROOT -name '*.la' -delete
%changelog
-* Wed Feb 24 2021 Ondrej Dubaj <odubaj@redhat.com> - 1.2.11-16.2
-- Fixed inflateSyncPoint() bad return value on z15 (#1932270)
-
-* Mon Jun 15 2020 Ondrej Dubaj <odubaj@redhat.com> - 1.2.11-16.1
-- Fixed DFLTCC compression level switching issues (#1926104)
+* Mon Jun 15 2020 Ondrej Dubaj <odubaj@redhat.com> - 1.2.11-17
+- Fixed DFLTCC compression level switching issues (#1875492)
+- Enabled HW compression for compression levels 1 through 6 (#1847438)
+- Fixed inflateSyncPoint() bad return value on z15 (#1888930)
* Mon Jun 15 2020 Ondrej Dubaj <odubaj@redhat.com> - 1.2.11-16
- Permit a deflateParams() parameter change