ebtables: use bitbake optimization levels

Don't overwrite with O3 optimization. Reduces ebtables
binary package size from 416241 to 412145 bytes, and
enables further optimizations with e.g. -Os flags
via bitbake distro wide settings.

Only ebtables versions up to 2.0.10-4 and dunfell are affected.
The version 2.0.11 from hardknott and master branch use system
wide flags already.

Signed-off-by: Mikko Rapeli <mikko.rapeli@bmw.de>
Signed-off-by: Armin Kuster <akuster808@gmail.com>

2 files changed, 20 insertions, 0 deletions

diff --git a/meta-networking/recipes-filter/ebtables/ebtables-2.0.10-4/ebtables_optimizations.patch b/meta-networking/recipes-filter/ebtables/ebtables-2.0.10-4/ebtables_optimizations.patch
new file mode 100644
index 0000000000..21d4cfd822
--- /dev/null
+++ b/meta-networking/recipes-filter/ebtables/ebtables-2.0.10-4/ebtables_optimizations.patch
@@ -0,0 +1,19 @@
+ebtables: use optimizations from bitbake
+
+Enables building with O2 or Os to create smaller binaries.
+
+Upstream-Status: Inappropriate [configuration]
+
+Signed-off-by: Mikko Rapeli <mikko.rapeli@bmw.de>
+
+--- a/Makefile  2021-04-16 12:43:40.475431286 +0000
++++ b/Makefile  2021-04-16 12:45:23.654597711 +0000
+@@ -18,7 +18,7 @@ SYSCONFIGDIR:=/etc/sysconfig
+ DESTDIR:=
+ 
+ CFLAGS:=-Wall -Wunused -Werror
+-CFLAGS_SH_LIB:=-fPIC -O3
++CFLAGS_SH_LIB:=-fPIC
+ CC:=gcc
+ 
+ ifeq ($(shell uname -m),sparc64)
diff --git a/meta-networking/recipes-filter/ebtables/ebtables_2.0.10-4.bb b/meta-networking/recipes-filter/ebtables/ebtables_2.0.10-4.bb
index 276784009f..8b6dcea439 100644
--- a/meta-networking/recipes-filter/ebtables/ebtables_2.0.10-4.bb
+++ b/meta-networking/recipes-filter/ebtables/ebtables_2.0.10-4.bb
@@ -31,6 +31,7 @@ SRC_URI = "${SOURCEFORGE_MIRROR}/ebtables/ebtables-v${PV}.tar.gz \
            file://0007-extensions-Use-stdint-types.patch \
            file://0008-ethernetdb.h-Remove-C-specific-compiler-hint-macro-_.patch \
            file://0009-ebtables-Allow-RETURN-target-rules-in-user-defined-c.patch \
+           file://ebtables_optimizations.patch \
            "
 
 SRC_URI_append_libc-musl = " file://0010-Adjust-header-include-sequence.patch"