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authorChris Wilson <chris@chris-wilson.co.uk>2018-03-13 00:40:55 +0000
committerChris Wilson <chris@chris-wilson.co.uk>2018-03-13 09:43:50 +0000
commitc5c2b11894f4f862cf243b955ac59bb1a5fe61b9 (patch)
treeb4fb3c39ae66b60d22950dd0055f73b5d1c79de7 /drivers/gpu/drm/i915/Makefile
parent7aa0b14ede643fb7c33aaa8e0041de04a0d6f278 (diff)
drm/i915: Warn against variable length arrays
VLA are strongly discouraged in the kernel due to ambiguity they impose on the limited stack space and security concerns over manipulating the stack frame. Add -Wvla to our compiler flags so that CI rejects them. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Jani Nikula <jani.nikula@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Acked-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180313004055.25411-2-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/Makefile')
-rw-r--r--drivers/gpu/drm/i915/Makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index 4eee91a3a236..fcb8a7b27ae2 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -12,7 +12,7 @@
# Note the danger in using -Wall -Wextra is that when CI updates gcc we
# will most likely get a sudden build breakage... Hopefully we will fix
# new warnings before CI updates!
-subdir-ccflags-y := -Wall -Wextra
+subdir-ccflags-y := -Wall -Wextra -Wvla
subdir-ccflags-y += $(call cc-disable-warning, unused-parameter)
subdir-ccflags-y += $(call cc-disable-warning, type-limits)
subdir-ccflags-y += $(call cc-disable-warning, missing-field-initializers)