Commit 39bf4de89ff7 ("drm/i915: Add -Wall -Wextra to our build, set warnings to full") enabled extra warnings for i915 to spot possible bugs in new code, and then disabled a subset of these warnings to keep the current code building without warnings (with gcc). Enabling the extra warnings also enabled some additional clang-only warnings, as a result building i915 with clang currently is extremely noisy. For now also disable the clang warnings sign-compare, sometimes-uninitialized, unneeded-internal-declaration and initializer-overrides. If desired they can be re-enabled after the code has been fixed.
Fixes: 39bf4de89ff7 ("drm/i915: Add -Wall -Wextra to our build, set warnings to full") Signed-off-by: Matthias Kaehlcke mka@chromium.org --- Changes in v2: - rebased on drm-tip - added comment indicating that disabled warnings are clang warnings
drivers/gpu/drm/i915/Makefile | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile index 4eee91a3a236..9717c037b582 100644 --- a/drivers/gpu/drm/i915/Makefile +++ b/drivers/gpu/drm/i915/Makefile @@ -18,6 +18,11 @@ subdir-ccflags-y += $(call cc-disable-warning, type-limits) subdir-ccflags-y += $(call cc-disable-warning, missing-field-initializers) subdir-ccflags-y += $(call cc-disable-warning, implicit-fallthrough) subdir-ccflags-y += $(call cc-disable-warning, unused-but-set-variable) +# clang warnings +subdir-ccflags-y += $(call cc-disable-warning, sign-compare) +subdir-ccflags-y += $(call cc-disable-warning, sometimes-uninitialized) +subdir-ccflags-y += $(call cc-disable-warning, unneeded-internal-declaration) +subdir-ccflags-y += $(call cc-disable-warning, initializer-overrides) subdir-ccflags-$(CONFIG_DRM_I915_WERROR) += -Werror
# Fine grained warnings disable