drm/amdgpu: avoid integer overflow warning in amdgpu_device_resize_fb_bar()

From Arnd Bergmann
fd28ce30b525bccba4504499de625085a6def1c6 in linux-6.1.y/6.1.53
822130b5e8834ab30ad410cf19a582e5014b9a85 in mainline linux

diff --git a/sys/dev/pci/drm/amd/amdgpu/amdgpu_device.c b/sys/dev/pci/drm/amd/amdgpu/amdgpu_device.c
index 8bad65c..803e2d9 100644 (file)
--- a/sys/dev/pci/drm/amd/amdgpu/amdgpu_device.c
+++ b/sys/dev/pci/drm/amd/amdgpu/amdgpu_device.c
@@ -1229,6 +1229,9 @@ int amdgpu_device_resize_fb_bar(struct amdgpu_device *adev)
        u16 cmd;
        int r;
 
+       if (!IS_ENABLED(CONFIG_PHYS_ADDR_T_64BIT))
+               return 0;
+
        /* Bypass for VF */
        if (amdgpu_sriov_vf(adev))
                return 0;