[PATCH] drm/v3d: Fix compile with CONFIG_WERROR

[Ashutosh Dixit]

Fix compile with CONFIG_WERROR by explicitly computing the max number of
7.1 and 4.2 counters.

In file included from ../drivers/gpu/drm/v3d/v3d_drv.h:14,
                 from ../drivers/gpu/drm/v3d/v3d_bo.c:26:
../drivers/gpu/drm/v3d/v3d_performance_counters.h:118:43: \
	error: ‘v3d_v42_performance_counters’ defined but not used \
	[-Werror=unused-const-variable=]

Fixes: 3cbcbe016c31 ("drm/v3d: Add Performance Counters descriptions for V3D 4.2 and 7.1")
Signed-off-by: Ashutosh Dixit <ashutosh.dixit at intel.com>
---
 drivers/gpu/drm/v3d/v3d_drv.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/v3d/v3d_drv.h b/drivers/gpu/drm/v3d/v3d_drv.h
index 556cbb400ba0..93dccb5f4c23 100644
--- a/drivers/gpu/drm/v3d/v3d_drv.h
+++ b/drivers/gpu/drm/v3d/v3d_drv.h
@@ -352,7 +352,9 @@ struct v3d_timestamp_query {
 };
 
 /* Maximum number of performance counters supported by any version of V3D */
-#define V3D_MAX_COUNTERS ARRAY_SIZE(v3d_v71_performance_counters)
+#define MAX(a, b) ((a) > (b) ? (a) : (b))
+#define V3D_MAX_COUNTERS MAX(ARRAY_SIZE(v3d_v71_performance_counters), \
+			     ARRAY_SIZE(v3d_v42_performance_counters))
 
 /* Number of perfmons required to handle all supported performance counters */
 #define V3D_MAX_PERFMONS DIV_ROUND_UP(V3D_MAX_COUNTERS, \
-- 
2.41.0