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authorChris Wilson <chris@chris-wilson.co.uk>2015-05-20 14:12:47 +0100
committerDaniel Vetter <daniel.vetter@ffwll.ch>2015-05-21 11:56:12 +0200
commit118182e9d7d5afa0c7c10f568afb46ab78b462e9 (patch)
tree55279d8325ca897bcf72b7d53f9f6c0848807e35 /drivers/gpu/drm/i915
parent16e44e3e93c429b44a1441049ce89208fd3e0d28 (diff)
drm/i915: Force clean compilation with -Werror
Our driver compiles clean (nowadays thanks to 0day) but for me, at least, it would be beneficial if the compiler threw an error rather than a warning when it found a piece of suspect code. (I use this to compile-check patch series and want to break on the first compiler error in order to fix the patch.) v2: Kick off a new "Debugging" submenu for i915.ko Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Acked-by: Jani Nikula <jani.nikula@intel.com> [danvet: Add "DRM i915" to the menu name as requested by Chris.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915')
-rw-r--r--drivers/gpu/drm/i915/Kconfig8
-rw-r--r--drivers/gpu/drm/i915/Kconfig.debug5
-rw-r--r--drivers/gpu/drm/i915/Makefile2
3 files changed, 15 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/Kconfig b/drivers/gpu/drm/i915/Kconfig
index 74acca9bcd9d..5e3aa87e8f48 100644
--- a/drivers/gpu/drm/i915/Kconfig
+++ b/drivers/gpu/drm/i915/Kconfig
@@ -71,3 +71,11 @@ config DRM_I915_PRELIMINARY_HW_SUPPORT
option changes the default for that module option.
If in doubt, say "N".
+
+menu "DRM i915 Debugging"
+
+depends on DRM_I915
+
+source drivers/gpu/drm/i915/Kconfig.debug
+
+endmenu
diff --git a/drivers/gpu/drm/i915/Kconfig.debug b/drivers/gpu/drm/i915/Kconfig.debug
new file mode 100644
index 000000000000..070a03527bc5
--- /dev/null
+++ b/drivers/gpu/drm/i915/Kconfig.debug
@@ -0,0 +1,5 @@
+config DRM_I915_WERROR
+ bool "Force GCC to throw an error instead of a warning when compiling"
+ default n
+ ---help---
+ Add -Werror to the build flags for (and only for) i915.ko
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index b7ddf48e1d75..93d99b744531 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -2,6 +2,8 @@
# Makefile for the drm device driver. This driver provides support for the
# Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
+subdir-ccflags-$(CONFIG_DRM_I915_WERROR) := -Werror
+
# Please keep these build lists sorted!
# core driver code