lttng-modules: Do not fail if CONFIG_TRACEPOINTS is not enabled

The lttng-modules are being pulled by the tools-profile image feature,
however, not every kernel has the CONFIG_TRACEPOINTS feature enabled.

This change makes the build do not fail when CONFIG_TRACEPOINTS is not
available, allowing it to be kept being pulled by default.

(From OE-Core rev: 6215ffec6a3d5069cc74ae9853167c3c6395b1db)

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 51 insertions, 1 deletions

diff --git a/meta/recipes-kernel/lttng/lttng-modules/Makefile-Do-not-fail-if-CONFIG_TRACEPOINTS-is-not-en.patch b/meta/recipes-kernel/lttng/lttng-modules/Makefile-Do-not-fail-if-CONFIG_TRACEPOINTS-is-not-en.patch
new file mode 100644
index 0000000000..6a91f3258b
--- /dev/null
+++ b/meta/recipes-kernel/lttng/lttng-modules/Makefile-Do-not-fail-if-CONFIG_TRACEPOINTS-is-not-en.patch
@@ -0,0 +1,49 @@
+From 1b0e574d680101105a6c1e8931c78824f5a97a42 Mon Sep 17 00:00:00 2001
+From: Otavio Salvador <otavio@ossystems.com.br>
+Date: Mon, 5 Sep 2016 17:08:56 +0000
+Subject: [PATCH] Makefile: Do not fail if CONFIG_TRACEPOINTS is not enabled
+Organization: O.S. Systems Software LTDA.
+
+The lttng-modules are being pulled by the tools-profile image feature,
+however, not every kernel has the CONFIG_TRACEPOINTS feature enabled.
+
+This change makes the build do not fail when CONFIG_TRACEPOINTS is not
+available, allowing it to be kept being pulled by default.
+
+Upstream-Status: Inapropriate [embedded specific]
+
+Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
+---
+ Makefile | 9 +++++----
+ 1 file changed, 5 insertions(+), 4 deletions(-)
+
+diff --git a/Makefile b/Makefile
+index 8602649..75550cc 100644
+--- a/Makefile
++++ b/Makefile
+@@ -8,10 +8,7 @@ ifneq ($(KERNELRELEASE),)
+   # and defines the modules to be built.
+ 
+   ifdef CONFIG_LOCALVERSION    # Check if dot-config is included.
+-    ifeq ($(CONFIG_TRACEPOINTS),)
+-      $(error The option CONFIG_TRACEPOINTS needs to be enabled in your kernel configuration)
+-    endif # CONFIG_TRACEPOINTS
+-  endif # ifdef CONFIG_LOCALVERSION
++    ifneq ($(CONFIG_TRACEPOINTS),)
+ 
+   TOP_LTTNG_MODULES_DIR := $(shell dirname $(lastword $(MAKEFILE_LIST)))
+ 
+@@ -94,6 +91,10 @@ ifneq ($(KERNELRELEASE),)
+   obj-$(CONFIG_LTTNG) += lib/
+   obj-$(CONFIG_LTTNG) += tests/
+ 
++    else
++      $(warning The option CONFIG_TRACEPOINTS needs to be enabled in your kernel configuration)
++    endif # CONFIG_TRACEPOINTS
++  endif # ifdef CONFIG_LOCALVERSION
+ else # KERNELRELEASE
+ 
+ # This part of the Makefile is used when the 'make' command is runned in the
+-- 
+2.1.4
+
diff --git a/meta/recipes-kernel/lttng/lttng-modules_git.bb b/meta/recipes-kernel/lttng/lttng-modules_git.bb
index 6d596a417c..70145413a3 100644
--- a/meta/recipes-kernel/lttng/lttng-modules_git.bb
+++ b/meta/recipes-kernel/lttng/lttng-modules_git.bb
@@ -13,7 +13,8 @@ PV = "2.8.0+git${SRCPV}"
 
 COMPATIBLE_HOST = '(x86_64|i.86|powerpc|aarch64|mips|nios2|arm).*-linux'
 
-SRC_URI = "git://git.lttng.org/lttng-modules.git;branch=stable-2.8"
+SRC_URI = "git://git.lttng.org/lttng-modules.git;branch=stable-2.8 \
+           file://Makefile-Do-not-fail-if-CONFIG_TRACEPOINTS-is-not-en.patch"
 
 export INSTALL_MOD_DIR="kernel/lttng-modules"