[PATCH 04/25] drm/i915/bmg: Define IS_BATTLEMAGE macro

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Display code uses IS_BATTLEMAGE macro but the platform support doesn't
still exist in i915. So fake IS_BATTLEMAGE macro defined to enable
building i915 code.  We should make sure the macro parameter is used in
the always-false expression so that we don't run into "unused variable"
warnings from i915 builds if the IS_BATTLEMAGE() check is the only place
the i915 pointer gets used in a function.

While we're at it, also update the IS_LUNARLAKE macro to include the
parameter in the false expression for consistency.

Signed-off-by: Balasubramani Vivekanandan <balasubramani.vivekanandan@xxxxxxxxx>
---
 drivers/gpu/drm/i915/i915_drv.h | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index cf52d4adaa20..b41a414079f4 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -546,7 +546,15 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
 #define IS_ALDERLAKE_P(i915) IS_PLATFORM(i915, INTEL_ALDERLAKE_P)
 #define IS_DG2(i915)	IS_PLATFORM(i915, INTEL_DG2)
 #define IS_METEORLAKE(i915) IS_PLATFORM(i915, INTEL_METEORLAKE)
-#define IS_LUNARLAKE(i915) 0
+/*
+ * Display code shared by i915 and Xe relies on macros like IS_LUNARLAKE,
+ * so we need to define these even on platforms that the i915 base driver
+ * doesn't support.  Ensure the parameter is used in the definition to
+ * avoid 'unused variable' warnings when compiling the shared display code
+ * for i915.
+ */
+#define IS_LUNARLAKE(i915) (0 && i915)
+#define IS_BATTLEMAGE(i915)  (0 && i915)
 
 #define IS_DG2_G10(i915) \
 	IS_SUBPLATFORM(i915, INTEL_DG2, INTEL_SUBPLATFORM_G10)
-- 
2.25.1




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