[PATCH 1/2] drm/i915/gvt: Remove unnecessary check in reg_is_mmio

[Jonathan Cavitt <jonathan.cavitt@intel.com>]

The reg >= 0 check in reg_is_mmio is unnecessary because reg is always
greater than zero in all current use cases.  This is obvious when
checking 'offset' by itself (as offset is defined as an unsigned
integer), but it's also true for the offset + bytes - 1 use case in
intel_vgpu_emulate_mmio_read because bytes > 0.

Signed-off-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
---
 drivers/gpu/drm/i915/gvt/mmio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/gvt/mmio.c b/drivers/gpu/drm/i915/gvt/mmio.c
index da1135fa7cda..c60d1e548800 100644
--- a/drivers/gpu/drm/i915/gvt/mmio.c
+++ b/drivers/gpu/drm/i915/gvt/mmio.c
@@ -58,7 +58,7 @@ int intel_vgpu_gpa_to_mmio_offset(struct intel_vgpu *vgpu, u64 gpa)
 }
 
 #define reg_is_mmio(gvt, reg)  \
-	(reg >= 0 && reg < gvt->device_info.mmio_size)
+	(reg < gvt->device_info.mmio_size)
 
 #define reg_is_gtt(gvt, reg)   \
 	(reg >= gvt->device_info.gtt_start_offset \
-- 
2.43.0