drm/amdgpu: fix DRM_INFO flood if display core is not supported (bug 210921)

commit ff9346dbabbb6595c5c20d90d88ae4a2247487a9 upstream.

This fix bug 210921 where DRM_INFO floods log when hitting an unsupported ASIC in
amdgpu_device_asic_has_dc_support(). This info should be only called once.

Bug: https://bugzilla.kernel.org/show_bug.cgi?id=210921
Signed-off-by: Alexandre Demers <alexandre.f.demers@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 026789b466db9a83aed5be61f1e018a8edf7f9c4..523fbef67591c20fd99b6dbadeb36041ea5d8182 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -3008,7 +3008,7 @@ bool amdgpu_device_asic_has_dc_support(enum amd_asic_type asic_type)
 #endif
        default:
                if (amdgpu_dc > 0)
-                       DRM_INFO("Display Core has been requested via kernel parameter "
+                       DRM_INFO_ONCE("Display Core has been requested via kernel parameter "
                                         "but isn't supported by ASIC, ignoring\n");
                return false;
        }