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@xxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/i915/Kconfig | 8 ++++++++ drivers/gpu/drm/i915/Kconfig.debug | 5 +++++ drivers/gpu/drm/i915/Makefile | 2 ++ 3 files changed, 15 insertions(+) create mode 100644 drivers/gpu/drm/i915/Kconfig.debug diff --git a/drivers/gpu/drm/i915/Kconfig b/drivers/gpu/drm/i915/Kconfig index 74acca9bcd9d..76c425ca2a2c 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 "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 -- 2.1.4 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
