openvswitch: switch patch with patch from ovs trunk

After a few discussions with the guys working on OpenVSwitch
they've recommended we use the EXTRA_CFLAGS env var for setting
flags for the kernel module.

They've updated the trunk with a patch to accomodate that.
That patch is also in this commit, and replaces a patch that I proposed.

Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>

net/openvswitch/patches/0004-datapath-Use-ccflags-y-instead-of-deprecated-EXTRA_C.patch

@@ -0,0 +1,41 @@
+From 36fd4f214f9ba74aaf0e5fb3e4ba271b946a1550 Mon Sep 17 00:00:00 2001
+From: Thomas Graf <tgraf@noironetworks.com>
+Date: Wed, 26 Nov 2014 15:52:31 +0100
+Subject: [PATCH] datapath: Use ccflags-y instead of deprecated EXTRA_CFLAGS
+
+This allows users to pass in additional compiler flags through the
+environment variable EXTRA_CFLAGS, e.g.
+
+   make EXTRA_CFLAGS=-Wno-error=foo V=1
+
+Reported-by: Alexandru Ardelean <ardeleanalex@gmail.com>
+Signed-off-by: Thomas Graf <tgraf@noironetworks.com>
+Acked-by: Pravin B Shelar <pshelar@nicira.com>
+---
+ datapath/linux/Kbuild.in | 10 +++++-----
+ 1 file changed, 5 insertions(+), 5 deletions(-)
+
+diff --git a/datapath/linux/Kbuild.in b/datapath/linux/Kbuild.in
+index 6f6f65f..cb98c11 100644
+--- a/datapath/linux/Kbuild.in
++++ b/datapath/linux/Kbuild.in
+@@ -7,11 +7,11 @@ export VERSION = @VERSION@
+ include $(srcdir)/../Modules.mk
+ include $(srcdir)/Modules.mk
+ 
+-EXTRA_CFLAGS := -DVERSION=\"$(VERSION)\"
+-EXTRA_CFLAGS += -I$(srcdir)/..
+-EXTRA_CFLAGS += -I$(builddir)/..
+-EXTRA_CFLAGS += -g
+-EXTRA_CFLAGS += -include $(builddir)/kcompat.h
++ccflags-y := -DVERSION=\"$(VERSION)\"
++ccflags-y += -I$(srcdir)/..
++ccflags-y += -I$(builddir)/..
++ccflags-y += -g
++ccflags-y += -include $(builddir)/kcompat.h
+ 
+ # These include directories have to go before -I$(KSRC)/include.
+ # NOSTDINC_FLAGS just happens to be a variable that goes in the
+-- 
+2.1.2
+

net/openvswitch/patches/0004-datapath-linux-add-KCFLAGS-var-to-modules-Makefile.m.patch

@@ -1,39 +0,0 @@
-From deb44e6e9d64001562ee9395a2c8525848052394 Mon Sep 17 00:00:00 2001
-From: Alexandru Ardelean <aa@ocedo.com>
-Date: Tue, 28 Oct 2014 11:03:53 +0200
-Subject: [PATCH] datapath/linux: add KCFLAGS var to modules Makefile.main.in
-
-This is mostly required because of GCC 4.9 which seems
-to error out with:
-  openvswitch/datapath/linux/datapath.c:2108:10:
-       error: macro "DATE" might prevent reproducible builds
-
-We would have wanted to add '-Wno-error=date-time' directly
-but that would be too specific, so we decided to add
-a generic make flag and configure it with what we need.
-
-Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>
----
- datapath/linux/Makefile.main.in | 4 ++--
- 1 file changed, 2 insertions(+), 2 deletions(-)
-
-diff --git a/datapath/linux/Makefile.main.in b/datapath/linux/Makefile.main.in
-index 88f144c..0b200b7 100644
---- a/datapath/linux/Makefile.main.in
-+++ b/datapath/linux/Makefile.main.in
-@@ -67,10 +67,10 @@ ifeq (,$(wildcard $(CONFIG_FILE)))
- endif
- 
- default:
--	$(MAKE) -C $(KSRC) M=$(builddir) modules
-+	$(MAKE) -C $(KSRC) M=$(builddir) $(KCFLAGS) modules
- 
- modules_install:
--	$(MAKE) -C $(KSRC) M=$(builddir) modules_install
-+	$(MAKE) -C $(KSRC) M=$(builddir) $(KCFLAGS) modules_install
- 	depmod `sed -n 's/#define UTS_RELEASE "\([^"]*\)"/\1/p' $(KSRC)/include/generated/utsrelease.h`
- endif
- 
--- 
-1.8.4.5
-