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drm/i915: Disable some extra clang warnings

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Commit 39bf4de89f ("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.

Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180501182440.70121-1-mka@chromium.org
This commit is contained in:
Matthias Kaehlcke 2018-05-01 11:24:40 -07:00 committed by Chris Wilson
parent 3a068721a9
commit 46e2068081
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/i915/Makefile
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@ -18,6 +18,10 @@ 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 += $(call cc-disable-warning, initializer-overrides)
subdir-ccflags-$(CONFIG_DRM_I915_WERROR) += -Werror
# Fine grained warnings disable